JOURNAL OF ENTOMOLOGY AND ZOOLOGY r VOLUME XL 1919 PUBLISHED QUARTERLY BY THE DEPARTMENT OF ZOOLOGY OF POMONA COLLEGE Cl-AREMONT, CALIFORNIA, U S A CONTENTS OF VOLUME Volume XI, Number Chamberlin, Ralph V New I'olychaetous Annelids from Laguna Beach, Cal., Hilton, William A Nerx'ous System of californicum, 24 Tlie Caecum Isoptera from the Clarenionl-Laguna Region, 42 Diplopods from the ClaremontLaguna Region, 43 Notes on the Seri)ent Stars of Laguna Beach, 44 Hyde, Eva Amphipods from Laguna Beach, XI May Snialler collected Shells at La- guna Beach during the Summer 26 of 1917 45 Volume XI, Number Crampton, G C, Ph.D, Notes on the Ancestry Annelids from Laguna Beach, Evans, Alma 27 lus, 28 from Laguna Beach, 34 Hilton, William A Central Nervous System of the Sand Dollar Dendraster Excentricus Esh., 35 Ants from the Claremont-Lagmia Region, 38 Volume XI, Number Kopods from Laguna Beach, of the 49 Ledig, Ruth Sturcture of Dolicli(i,gIossus pusil- Opisthobranchs Coleoptera, (ieneral Structure of Phoronis I'acihca Torrey 55 Acarina from the Claremont-La- gnna Region, The Central Nervous System Corwin, Genevieve Brvozoa collected at Laguna Beach in 1918 40 Phalangids from tlie ClareniontLaguna Region, 41 of Dolicho.glossus, 59 Volume XI, Number Gunthorp, Horace Notes on tlie Behavior Social 39 58 Hilton, William A Wasp of tlie I'olistes, 63 Alexander, Charles P Biology of tlie North Crane-Flies Dicrauaptvcha, \' .\mcricaii Tlie Genus (>7 WilliamA The Central Nervous System Hilton, Nucula and Malletia, 75 of INDEX TO VOLUME Acarina Hilton William 58 Ampliipods Ancestry liyilc 26 Isopods 49 Ants 38 Ledifj, Annelids 1, Bryozoa 40 Clianiherliii Coleoptera, \'., Nudibranchs, Crampton G C, 34 T'halansids, 41 49 I'lioronis pacifica, 55 I'olistes 63 67 IJendraster excentricus, 35 Sand Dollar 35 Serpent Stars 43 Diptcra 67 l-'.vans 59 24 35 59 75 Opistliobranchs 34 40 Crane-Flies 67 l)Mlicli.i>los>us 35 55 Niicula 75 49 Dicranoptycha, 24 39 R Nervous System R 45 Malletia 75 27 Corwin Genevieve, Diplopods, May I'.va \ XI 44 Shells 45 28 59 .Mina 28 Gnnthorp Hi)race Social Wasps (/3 Tectibranclis 34 63 Tiptilidae 67 75 New Polychaetous Annelids From Laguna Beach, California RALPH V CHAMUERI.IN from Lagiina interesling collection of annelids In a vei> transmilled IJcacli to me by Frof Hilton, the apparently previously iindesoribed forms listed below for study As are represented comprehensive report on the annelids of the region a further explorations and collecting preliminary accounts of the The in the local fauna Zoology Cambridge at in is new forms contemplation, am follow as are thought sufficient for their identification these species are in the t\'pes of all to giving here only such Museiun Comparative of POLYNOIDAE IlahisyJiia A // insii/iiis, i'alifnniitti, and l>ulchra It is sp liitiiir species proportionately broader over all nov than the usual forms of the common characterized by elytra not only closely imbri- cated along each side but also broadly overlapping in the middle line throughout the The length axis running elytra in general are unusually elongate in an obliciue direction, the long from the outer end cephalomesad edge broadly convex, the opposite one a little ; caudomesal the outline subelliptic, the incurved at middle The entire sur- brown nodules face of elytra subdensely covered with very small rounded or tubercles; within the middle region, just behind the eilge of the preceding overlapping elytron, a number much of larger paler tubercles whicli in the type are present on all excepting Eighteen pairs of elytra Elytra extending to outer ends of parapodia the last pair Prostomium subangularly bulging on each side, the anterior eye at the angle, the posterior eye removed far caudad, by about half the greatest width of the prostomium Paired anterior prolongations of the prostomium very long, as long as the median length of the prostomium back to level of posterior eyes, distally clavate Median ceratophore much stouter than the lateral prolongations and exceeding them by more present than a third rowing in length Median tentacle long, nearly attaining end of palpi ; slender, nar- distad, only slightly thickened subapically, with the usual slender tip moderate length middle of light Lateral tentacles region between much shorter, their tips which reaching only to is of near proximal black region and subapical black ring of Tentacular cirri resembling median tentacle in form, being narrowed subapical enlargement slight; one or two fine setae emerging from median tentacle distad with distal end of parapodium proximad of tentacular cirrus The have the same characteristic form as the tentacular cirri, narrowing continuously distad with the subapical enlargement slight First neurocirrus very a small nodule at lotocirri in general The elongate, surpassing the parapodiinn other neurocirri slenderly cylindroconical, narrowed into a slender tip and a little narrowed proximally; attached well toward base of parapodium the end of which they fail much of attaining A characteristic feature is the elongate form of the nephridial papillae, these in the type as preserved being mostly near three times as long as thick at the middle amber colored, numerous, arranged ond a much broader longitudinal series ventral one with five or in six in Neuropodial setae dark two continuous regions, a narrow dorsal one the latter of setae in which the setae each series form four distinct Notopodials moderate in Journal number, the tlorsal The poclimii (if Kntiiniology niui Z(i(iliig\' ones short, the most ventral long, attaining the end of the ncuro- elytra are greyish with dusky or brownish inottlings Notocirri with dark annulatioiis as usual mm.; width to end of setae, 14 inm to end of parapodia, mm Taken on Laguna Beach at Mussel Point (Hamilton coll.) Type— M C Z :, 13S Length, 42 ; 10.8 mm.; exclusive of parapodia, IlaliisyJiiit Among otlier I II h mil lifer sp nov forms known from the California coast characterized especially by the strong tuberculation of all the elytra The tubercles are mostly large and conical though some are rounded and are confined chiefly to the mesocaudal half and median region of each elytron, a series of large ones ordinarily present along the caudal and caudomesal margin; in the first two or three pairs of elytra the tubercles of the median region especially large, the tubercles on the first pair occurring on the anterior pari as well; ectal margin of elytra strongly fringed or ciliatc subcircular but with margin of ectocephalic side flattened or Elytra in contact or nearly so at median line but not there at to XXV and then Elytra part a II, IV', all general in little incurved overlapping Pairs IX and so on on XXVI, XXVIII, XXX, XXXI, and XXXIII The rf elytra eighteen, these being present on somites ones in V, VII, alternate last three Anterior pair of eyes near middle of length of somites bear notocirri prostomium proper, larger than posterior pair which are a little closer together and Lateral prolongations of the prostomium in front are well removed from the others which bear the lateral tentacles only a little shorter than the median ceratophore ^etigerous though much more slender Median tentacle shorter than the palpi, moderately en- larged and stronglv rounded subapically and with the usual slender tip or filament which is comparatively short The lateral tentacles of similar form but much shorter and more slender Neurocirri of first normal segment large, resembling a notocirrus The other neurocirri much shorter, subconical, constricted at base and prolonged into Anal cirri a slender but short tip; attached near base of neuropodium in each case Neuropodial setae of usual general similar to notocirri but much longer and stouter form, amber colored with dark tip, arranged mostly in two or three, usually uneven, The notopodial setae fine, numerous, the longer ones not falling subvertical series much short of or reaching the ends of the neuropodials The nephridial papillae oc- cupv the ordinarv position; thev are small and uiuisuall\' short The color of the Antennae, lentacular cirri and notocirri banded at elvtra uniform greyish brown base and distally with black Length, 23 mm.; width exclusive of parapodia, somewhat more so caudal Taken at Laguna Beach under stones (1917) Type— M C Z 2, 139 Ual'isyiina Iriitsi'tti sp mm .'\ little narrowed cephalad, nov Bod\' strfinglv and contiruiousK' narrowetl caudad Prostomium wider than deeply bilobed, the median tentacle inserted deeply in the intervening incision extended forward into peaks which, however, are constricted at base so as long, Lobes to give Anterior eye free on pppearance of more or less distinct ceratophores, these short each side, the caudal one much farther mesad and overlapped by the peristomiuin Tentacles short, the rneilian line a little longest and about eipialling the I'alpi; in Pomona cacli sleiuler a above the moderate subdistal swelling about lip remaining part of the the College, Claremont, California Tentacular style neurocirrus, the latter less clavate below the slender first shortly subfusifortn shorter, with filiform precisely at middle of length of the at similarly cirri base of neuropodia tip eiiual length in formed, as is Other neurocirri much Notopodia reduced neuropodium to the also almost characteristically inserted short; tip to small lobes above, these lobes smooth, bearing no emergent setae the in number; these are entire, and acute; the surface appears smooth, the seriate spinules being exceedingly minute and easily overlooked The notocirri have the usual enlarged distal end pale straw colored baring a slender tip and a little exceed the neuropodial setae The elytra have an average neuropodium the setae are mostly six coarse, with subhastate heads the tips of which are curved, In type the in ; arrangement in general similar to normal that in Halosydna so far as that usually goes, but twenty-four pairs are present, these occurring on somites, II, IV, V, VII, IX, XV, XVII, XIX, XXI, XXIII, and XXVI, XXVIII, XXIX, XXXI, XXXIIl, XXXV, XXXVII, XXXIX, XLl, XLIII, XLV, and XI.VII The elytra are character- XI, XIII, istically widely imbricated as so completely to and prostomium cover the dorsum out far laterally so as wholly to overlap the parapodia proper though the They extend The ends of the setae and notocirri extend beyond the edges elytra have the surface As preserved, the type has no definite color markings; color greyish, the elytra of weak fulvous cast Length near 22 mm.; greatest width exclusive of parapodia, 2.8 mm.; to ends of farapodia, mm.; to ends of setae, 6.S mm Taken as a commensal on a sea-urchin (Metz, July 20, 1911) Type— M C Z 2, 140 wholly smooth and the edges are also not fringed seiosior sp nov l.i'l>uliiniitus loi'loris and other species recorded from North and South America by the greater length and coarseness of the notopodial setae, these being stout pointed spines often nearly attaining the ends The notopodials, of the neuropodials and thus exceeding the latter in actual length Readily distinguished from L siJ'Hiotits Ictus sp no\' A species characterized by surface wholly smooth or, at its rather thin, easily detached elytra which have their most, showing a few scattered minute points; closely fringed along the outer margin, about the cephaloectal region, and for a short dis- Elytrophore attached cephaloectad of middle Anterior tance along the anterior edge margins of a t\'pical ehtron onlv weakly convex, the cephaloectal corner subrectangular though rounded; caudal margin strongly convex, the inner end of elytron Elytra transverse like the end of an ellipse but with lower margin the more oblique Prostomium of usual or but little oblique, strongly overlapping in the middorsal line and ectal Eyes large and black, the anterior ones near middle of main region general form of prostomium, the posterior ones closer together a lateral, retained type in base of the distal swelling to the cially by is an unusually long slender parapodium of the and middle of tip which is as long as the rest of the style when in usual the The position; bent back reaching proxi- usual vertically elongate patch, in the presenting a narrow dorsal half and a broader ventral one patch which Notocirri also characterized by their long terminal filaments style Neuropodial setae light amber-colored; arranged the tentacle, style scarcely longer than the basal process, and espe- tentacular cirri of usual form, the filiform tips long, iiiad of short cylindrical a segment bears two prominent setae first Only one caudal end at This characterized by In the ventral part of normally four longitudinal rows of three setae each, while the narrower upper region shows also about four rows but with only two or one setae have the usual general structure end of neuropodia and sometimes nearly are tvpe the elvtra light brown in each The Notopodials numerous, reaching beyond distal The to middle of the neuropodial tentacles In the setae and notocirri ringed with black as common Length, mm.; width 13 exclusive of parapodia, mm.; width to tips of setae, mm Dredged Type— M C Z 2, 142 PllVLLUDUCIDAE Ilespeynl>hyllum gen nov and Auslrophylhim but differing especially in having the ventral cirrus of the second segment fiattened atul foliaceous ami strongly asymmetrical It is like i\o/ii/>/iylliim and unlike liistro/i/iylhi:n in haviuL' the first segSimilar in ment dorsally Gennlype general to \ntn/>//ylltim reiluced — // tectum sp nov ledum II cspcriil'liylliitn The of a first segment dorsally thin or foliaceous reduced distally to a reduceil \'entral and asymmetrical form poinlcii lip, ihal of sp nov tentacular cirrus of second Other tentacular aboul half as long as cirri llic somite subcylindric, dorsals of II Pdinona ClareiiKint, California Collfsif, and III Paired tentacles short, proximally thick and convexly bulging, alnuptly narrowed to an acute tip with incurving sides Unpaired tentacle situated between eyes in line connectnig their centers, nearly of same length and size as the first tentacular annulate Prostoinlum shortly subcirri and about as long also as prostomium With very large cirri of which cordate, well rounded in front, incurved caudally ; widely overlap the dorsals prostomium normally a parapodium typical wholly concealed from above The extending from by attached is and thus completely cover the dorsum, the the middle in also being broad a base neurocirrus of pronounced a ventral swelling or flange (neurocirrophore) across the caudal sid of the parapoilium to dorsal edge and projects farther dorsad of the parapodium than its widely rounded; dorsomesal end The free edge evenly rounded ference and its notocirrophore lobe on its ectal side; the style is the rounded bodv arising from notopodium as a proportionately attached about caudal half-circum- its mesal limb widely overlapping that of the opposite notocirrus and Surface of its Number of segments in Body narrowing caudad, becoming narrow and pointed Proboscis unknown near seventy-three Length, 19 mm Type— M C" A Moore in life, being also retained this color paratype has a greenish in the preserved type speci- This species suggests Notopliyltum imhrualum cast the large imbricated notocirri covering the in type, at posterior 143 Z 2, Dredged Brown one ectal and of somites, especially ventrally, cirri densely covered with very fine brown dots or points men with the broadly sulircnitorni with the free margin coarsely crenulate or wavy, is overlapping the neurocirrus end the veiitrad, long, a thick in parapodium proper and showing the base of the much smaller much broader dnrsoventrally than dorsum but in the latter all the tentacular cirri are of the elongate, symmetrical, evenly tapering form charactcerislic of its numThe neuropodium genus Imhiicalum similarly presents nuchal appendages, but these are three in ber on each side and sleniler, instead of two broad, subelliptic lobes is narrowed instead of broad, distalK' head the is ditferentiv and formetl \arious other ditferences are present throughout Sti'gtjna This is color after preservation in alcohol ment lieing iio\' It agrees normally developed above and in Prostomium a rounded little in from the basal paired ones life and also retaining this seg- first from the prostomium though not distinct btit longer than part wide, narrowed and bearing the four front Unpaired nearly as long anteriorly, tentacles, Eyes not detected other tentacular cirri longer and filiform exceptionally subconical subconical thick Neurocirri in proportion Notocirri to set off \'entral and much in sides convex; by weak a a short constriction more slender than the tentacular cirrus of like the notocirri II The outline lanceolate, character- width so as much smaller; similarK Hoil\* slentler, is tentacle situated well caudad, of a thick, leaf-shaped form, sublanceolate in outline istically in general with Slcjijoa, the separated as usual, suggesting a tendency toward the llypoeiitalia condition so cleaiK lobe, (/ruiilior sp small and slender form noted as green a at times to appear nearly proportionatel\' thick and at slrongly narroweil fniin the middle to\%artl both enils times The journal of and Zoology Ent(im(>lojj;y Number proboscis densely and uniformly papillose throughout of segments near one hundred and twenty-three Length, about 36 Type— M C Z mm 144 2, Siiji' Corresponding closely Green genotype slender as in color nov sp (Griibe), the S macroceros brown Tentacles long and with characters straw-yellow of instead median equalling mairiiceros, with the in alifdrn'ii'iisis < general in to the others in length be proportionately larger than to at the sides where The macroceros in first segment and inserted The close to the base of the latter; tips of tentacles slenderly attenuated eyes seem reduced above is prostomium bulges back on each side; but the middle region the well developed, extending forward on the base of the head as a rounded lobe or is \'ery easily distinguished flap from macroceros and other known species by the form of the ventral tentacular cirrus of the second segment which, in place of the ordinarily foliaceous form, lanceolate hirge rounded lobe a in is very strongly expanded above the base, presenting a front and an abruptly much more The parapodia whole irregularlv twisted ver_\' slender with the blade as tip, similar to those of the genot\'pe; but the setigerous lobe less acutely and less deeply notched and rather broader across the end along the setigerous more evenly distally, The line rather more slender anil notocirri on each side distally so as not incurved to narrowed leave an elongate tip set off from the rest The neurocirri similar but more asymmetrical, the upper margin straight or concave, the lower convex Anal cirri missing Proboscis not protruded Total number of segments in the type, which is complete, sixty-eight Length, 10 mm Type— M C Z 145 2, Taken under stones Moore has described K alalia \entral tentacular cirrus of cannot be properlv referred II (Siyc) hijoliata from Monterey Bay; but as the described and figured as cylindroconical, that species is as to SitjC Inaitides now restricteti lieterocirrus sp nov Close to A mucosa (Oersted) in the characters of the proboscis, having similarly rows of papillae proximally on each side with the number in each series normally nine or ten, but distinct in the form of the cirri The three first pairs of normal foli- six aceous notociri'i much smaller than very broadly and evenly not conspicuously narrowed the succeeding ones the distal elliptic, as in mucosa end of In the tlie and different third, e in shape, being broadly rounded, g., average parapodia of the middle region of the body the neurocirri are obviously broader with the tip stouter and less acute; and the notocirri, while in general with a more pronounced ventral lobe, duced, while the distomesal corner the distal end appears less The is more each side at rouiuled, similar in form, are more elongate angle more acute and more pro- and the proportionate width across prnstnmiimi very broadly cordate, notched or con- stricted at the sides near the anterior third inserted on somewhat the distoectal which is distally broadly rounded; tentacles or just distad of the constriction, conical and of moderate length; caudal margin conspicuously angularly incised at middle and there eitibracing a conspictious nuchal papilla incomplete caudally, at F.yes about twice their diameter apart present consisting of ninety-five somites and The having type a is length NUMBER ONE VOLUME ELEVEN JOURNAL OF ENTOMOLOGY ZOOLOGY AND MARCH, 1919 PUBLISHED QUARTERLY BY POMONA COLLEGE DEPARTMENT oj ZOOLOGY CLAREMONT, CALIFORNIA, U S A CONTENTS Page New Polychaetous Annelids from Lacuna Beach, Cal The Nervous System of Caecum Californicum Amphipods from Lacuna Beach Entered CUremont, C*l Pott-(>fflce Oct — ty —Ralph A Hilton V Chamberlin 24 26 1, ISIO March a« S, second-cUu matter, under Act of ConrrcH of 1ST> Journal of Entomology and Zoology EDITED BY POMONA COLLEGE, DEPAKTMENT OF ZOOLOGY Subscription $1.00 to domestic, $1.25 to foreign countries This journal is especially offered in exchange for zoological and entomological journals, proceedings, transactions, reports of societies, museums, laboratories and expeditions The pages of the journal are especially open to western entomologists and zoologists Notes and papers relating to western and Californian forms and conditions are particularly desired, but short morphological, systematic or economic studies from any locality will be considered for publication Manuscripts submitted should be typewritten on one side of paper about by 11 inches Foot notes, tables, explanations of figures, etc., should be written on separate sheets Foot notes and figures should be numbered consecutively throughout The desired position of foot notes and figures should be clearly indicated in the manuscript Figures should be drawn so that they may be reproduced as An unusually large number of half tones must be paid for in part by the author Other more expensive illustrations will be furnished at cost Figures for cuts should be made to conform to the size of the page when line cuts so far as possible by 714 inches or less The lettering should be by means of printed numbers and letters pasted on the drawings, in most cases Authors of articles longer than a thousand words will receive reduced, that is, reprints of their publications free of cost If more than this are desired, the order should be given with the return of fifty Extra copies and special covers or special be furnished at cost Authors of short contributions will receive a few extra copies of the number containing their the proof sheets paper will articles Manuscripts should be sent by express or registered mail Address all communications to The Joubnal op Entomology and Zoology William A Hilton, Editor Claremont, California, U S A NUMBER TWO VOLUME ELEVEN JOURNAL OF ENTOMOLOGY ZOOLOGY AND JUNE, 1919 PUBLISHED QUARTERLY BY POMONA COLLEGE DEPARTMENT 0/ ZOOLOGY CLAREMONT, CALIFORNIA, U S A CONTENTS Page Annelids from Lacuna Beach 27 Structure of Dolichguossus Pusillus —/lima Evans 28 Opisthobranchs from Lacuna Beach 34 Central Nervous System of the Sand Dollar Dendraster Excentricus Esh ff A Hilton 35 Ants from the Claremont-Laguna Region BDtcred Claremont, C«L, Pott-OfDce Oct — 1, ItlO, as serond-claas niatter March t IfITt 38 undrr Act of CoDfrcM of Journal of Entomology and Zoology EDITED BY POMONA COUjEGE, DEPABTMENT OF ZOOLOGY Subscription $1.00 to domestic, $1.25 to foreign countries This journal is especially offered in exchange for zoological and entomological iournals, proceedings, transactions, reports museums, laboratories and expeditions The pages of the journal are especially open to western of societies, ento- mologists and zoologists Notes and papers relating to western and Californian forms and conditions are particularly desired, but short morphological, systematic or economic studies from any locality will be considered for publication Manuscripts submitted should be typewritten on one side of paper about by 11 inches Foot notes, tables, explanations of figures, etc., should be written on separate sheets Foot notes and figures should be numbered consecutively throughout The desired position of foot notes and figures should be clearly indicated in the manuscript Figures should be drawn so that they may be reproduced as line cuts so far as possible An unusually large number of half tones must be paid for in part by the author Other more expensive illustrations will be furnished at cost Figures for cuts should be made to conform to the size of the page when is, by 714 inches or less The lettering should be by means of printed numbers and letters pasted on the drawings, in most cases reduced, that Authors of than a thousand words will receive If more than this are desired, the order should be given with the return of the proof sheets Extra copies and special covers or special paper will be furnished at cost Authors of short contributions fifty articles longer reprints of their publications free of cost will receive a few extra copies of the number containing their articles Manuscripts should be sent by express or registered mail Address all The communications to Journal, op Entomology and Zoology William A Hilton, Editor Claremont, California, U S A VOLUME ELEVEN NUMBER THREE JOURNAL OF ENTOMOLOGY ZOOLOGY AND SEPTEMBER, 1919 PUBLISHED QUARTERLY BY POMONA COLLEGE DEPARTMENT 0/ ZOOLOGY CLAREMONT, CALIFORNIA, U S A CONTENIS Page ISOPODS FROM LaGUNA BEACH 39 Brvozoa Collected at Lacuna Beach in 1918 Genevieve Coriuin 40 Phalangids from the Ci.aremont-Laguna Region 41 ISOPTERA FROM THE Ci.AREMONT-LaGL'NA REGION 42 DlPLOPODS FROM THE CLAREMONT-LaGUNA REGION 43 Notes on the Serpent Stars of Lacuna Beach 44 Smaller Shells Collected at Lacuna Beach during the Summer of 1917 Eva May Hyde 45 Notes of the Ancestry of the Coleoptera — General Structure of Phoronis Pacifica Torrey — Rut/i G C Cramplon, Ph.D Ledig 55 AcARiNA from Claremont-Laguna Recion The Central Nervous System 58 — of Dolichoglossus EDtered ClaremonU C»L Po»t-Ofllce Oct ly A Hilton 1010 as setoiid class inalter March 49 t ll*7« 59 under Art of Coujmis of Journal of Entomology and Zoology EDITED BY POMONA COLLEGE, DEPABTMENT OF ZOOLOGY Subscription $1.00 to domestic, $1.25 to foreign countries This journal is especially offered in exchange for zoological and entomological journals, proceedings, transactions, reports of societies, museums, laboratories and expeditions The pages of the journal are especially open to western entomologists and zoologists Notes and papers relating to western and Californian forms and conditions are particularly desired, but short morphological, systematic or economic studies from any locality will be considered for publication Manuscripts submitted should be typewritten on one side of paper about by 11 inches Foot notes, tables, explanations of figures, etc., should be written on separate sheets Foot notes and figures should be numbered consecutively throughout The desired position of foot notes and figures should be clearly indicated in the manuscript Figures should be drawn so that they may be reproduced as An unusually large number of half tones must be paid for in part by the author Other more expensive illustrations will be furnished at cost Figures for cuts should be made to conform to the size of the page when line cuts so far as possible reduced, that is, by 71/2 inches or less The lettering should be by means of printed numbers and letters pasted on the drawings, in most cases Authors of than a thousand words will receive publications free of cost If more than this are desired, the order should be given with the return of the proof sheets Extra copies and special covers or special paper will be furnished at cost Authors of short contributions will receive a few extra copies of the number containing their articles longer fifty reprints of their articles Manuscripts should be sent by express or registered mail Address all communications to The Journal of Entomology and Zoology William A Hilton, Editor Claremont, California, U S A NUMBER FOUR VOLUME ELEVEN JOURNAL OF ENTOMOLOGY ZOOLOGY AND DECEMBER, 1919 PUBLISHED QUARTERLY BY POMONA COLLEGE DEPARTMENT of ZOOLOGY CLAREMONT, CALIFORNIA, U S A CONTENTS Page Notes on the Behavior of the Social Wasp Polistes Biology of the North American Crane-Flies V —Horace Gunthorp The Genus Dicranopt\cha 6'' Charles P Alexander The Central Nervous System 63 of Nucula and Malletia Kntered Claremoot Csl Po(t-Ofllce Oct IBIO Mari'b — W A Hilton 75 as sccond-cISM oiatUr under Act of Coniress of S \tn» Journal of Entomology and Zoology EDITED BY POMONA COLLEGE, DEPARTMENT OF ZOOLOGY Subscription $1.00 to domestic, $1.25 to foreign countries This journal is especially offered in exchange for zoological and entomological journals, proceedings, transactions, reports museums, laboratories and expeditions The pages of the journal are especially open to western of societies, ento- Notes and papers relating to western mologists and zoologists and Californian forms and conditions are particularly desired, but short morphological, systematic or economic studies from any locality will be considered for publication Manuscripts submitted should be typewritten on one side of paper about by 11 inches Foot notes, tables, explanations of figures, etc., should be written on separate sheets Foot notes and figures should be numbered consecutively throughout The desired iDosition of foot notes and figures should be clearly indicated in the manuscript Figures should be drawn so that they may be reproduced as line cuts so far as possible An unusually large number of half Other more tones must be paid for in part by the author expensive illustrations will be furnished at cost Figures for cuts should be made to conform to the size of the page when reduced, that is, by 7y2 inches or less The lettering should be by means of printed numbers and letters pasted on the drawings, in most cases Authors of articles longer than a thousand words will receive fifty reprints of their publications free of cost If more than this are desired, the order should be given with the return of the proof sheets Extra copies and special covers or special paper will be furnished at cost Authors of short contributions will receive a few extra copies of the number containing their articles Manuscripts should be sent by express or registered mail Address all communications to The Journal of Entomology and Zoology William A Hilton, Editor Claremont, California, U S A Pomona Located in west coast College one of the most healthful and beautiful parts of the reach an elevation of ten thousand feet The mountains within a few miles of the college and these with the nearby ocean afford many special advantages for the study of things not in books Special advantages are afforded its by the fact that the college limits attendance, the freshman class being restricted to two hundred The by the large proportion of the graduates who proceed to advanced work in the large universities In addition, well-manned departments of music and art afford exceptional advantages For further information, address applicants success of the college is particularly indicated Secretary of Pomona College Claremont, California Pomona Located College one of the most healthful and beautiful parts of the The mountains reach an elevation of ten thousand feet in west coast within a few miles of the college and these with the nearby ocean afford many special advantages for the study of things not in books Special advantages are afforded by the fact that the college limits its attendance, the freshman class being restricted to two hundred applicants The success of the college the large proportion of the graduates work in the large universities is particularly indicated who proceed by advanced In addition, well-manned depart- ments of music and art afford exceptional advantages For further information, address Secretary of Pomona College Claremont, California to Pomona Located in west coast College one of the most healthful and beautiful parts of the reach an elevation of ten thousand feet The mountains within a few miles of the college and these with the nearby ocean afford many special advantages for the study of things not in books Special advantages are afforded by the fact that the college limits its attendance, the freshman class being restricted to two hundred applicants The success of the college the large proportion of the graduates work in the large universities is particularly indicated by who proceed to advanced In addition, well-manned depart- ments of music and art afford exceptional advantages For further information, address Secretary of Pomona College Claremont, California Pomona Located in west coast College one of the most healthful and beautiful parts of the reach an elevation of ten thousand feet The mountains within a few miles of the college and these with the nearby ocean afford many special advantages for the study of things not in books Special advantages are afforded its by the fact that the college limits attendance, the freshman class being restricted to two hundred applicants The success of the college the large proportion of the graduates work in the large universities is particularly indicated by who proceed to advanced In addition, well-manned depart- ments of music and art afford exceptional advantages For further information, address Secretary of Pomona College Claremont, California ... teeth of shorter and finer and the ; much right the largest, with an additional small tooth in front of (ectad of) the large one; neither of the plates extending caudad of the anterior end of the... short of reaching ends of setae; in front of this absent from last caudal region of usual general form; consisting of fourteen or fifteen nuicli rings reduced Proboscis 14 Journal of Entomolog' and. .. and four pairs of genus in having the branchia; of two types, one pair simple, subulate form and the other three with the bearing two close series of lamellar branches, and pairs of fascia? of