JOURNAL THE PROCEEDINGS THE LINNEAN SOCIETY ZOOLOGY VOL VI V LONDON: SOLD AT THE SOCIETY'S APARTMENTS, BURLINGTON HOUSE; ANU BY LONGMAN, GREEN, LONGMANS AND ROBERTS, AND WILLIAMS AND NORGATE 18G2 FRANCTR, PRINTED BV TAYLOR AND RRP l,ION COURT FLEET STREET LIST OF PAPERS Page Bates, II "W , Esq Contributions to an Insect Faima of the Ajnazon ^'alley doptera : 73 Busk, George, F.R.S., Sec L.S Observations on some Skulls from Ceylon, Veddahs CoBBOLD, T Lepi- Heliconince said to be those of 166 Spencek, M.D., F.L.S Histological Observations on the Eye of the Cod-tish (3Iorrhua ndgaris), with especial reference to the Clioroid Gland and the Cones of the Retina 145 Couch, Jonathan, F.L.S Note on the Occurrence of the Crustacean England Sci/Ilarus Arctm in 78 Laughrin, William, A L.S Observations on the Choice of Food in the Cod and Ling 165 LiNCECUM, Gideon, M.D Notice on the Habits of the " Agricidtural Ant " of Macdonald, John Denis, R.N., F.R.S On a New Genus of Tunicata occurring on one Texas 29 of the Bellona Reefs 78 Newton, Alfred, M.A., F.L.S On the Possibility of taking a Zoological Census 23 Reeve, Lo\'ell, F.L.S On the Structure of the Mantle in TestaceUa Salter On S James A., M.B., F.L.S., F.G.S the Cranial Charactt-r.^ of the Snake-Rat, Fauna 1.53 new to the British 66 IV Page bMiTH, Peedebick, Esq New Species of Ants from the Holy Laud, with a Synonymic List of others previously described Catalogue of Plymenopterous Insects collected by Mr A R Wallace in the Islands of Ceram, Celebes, Ternate, and Descriptions of some 3G Gilolo Stainton, H 31 T., F.L.S On the Abnormal Habits of some Females of the Genus Orgyia 156 ViNEN, E Hart, M.D., F.L.S Description of a curious Walker, Francis, Form of Dipteroxis Larva F.L.S Catalogue of the Dipterous Insects collected at Gilolo Ternate, and Ceram by Mr A R Wallace, Avith Descriptions of New Species Catalogue of the Heterocerous Lepidopterous Insects collected at Sarawak, in Borneo, tions of New West, Tuffen, F.L.S On certain Appendages Holding or Climbing Index by Mr A R Wallace, with Descrip82, 171 Species to the Feet of Insects subservient to 2G 199 JOURNAL OF THE PROCEEDINGS OF THE LINNEAN SOCIETY OF LONDON Form Description of a curious YiNEK, E Haet M.D., E.L.S Esq., [Eead Feb In the By of Dipterous Larva 21, 1861.] early part of the year 1855, while examining with the microscope some water taken from a pool near my house at Bays- water, I noticed some small animals moving about with an active wriggling motion, which, as I believe them to be peculiar, I ven- They were very few in number, and I mounted some specimens in Canada balsam ture to introduce to the notice of the Society for future observation My first mere casual examination gave larval conditions of some insect me ; the idea that they were a belief which was strength- ened by the most prominent feature of the animal —a beautiful —and under tuft of hairs (possibly respiratory organs) at the tail were put aside with some other objects, but more pressing occupation were for a long time this impression they in consequence of neglected I have since consulted several entomologists, and finding their opinions to coincide with my own, I have thought it might be useful to give the following description Body composed tively short ; : of thirteen segments, the four anterior compara- cephalic joint narrow, truncated in front LINN PEOC — ZOOLOGY ; eye-spots DE VINEN ON E H A CURIOUS FOBM double, placed near the lateral margins and below the anterior Caudal segment furnished with twelve the former being retroverted and disposed in pairs, alternating with the latter, whicb are third of the segment spines or setae, eight long and four short ; somewhat nearer the extremity In addition to these characters, I may remark that the head appears to be supplied with a complicated buccal apparatus, but the preservative medium has rendered the parts so transparent that I refrain from hazarding a precise description of its several Moreover, in different examples these appearances are dissimilar, whilst the cephalic segment itself is proportionally longer parts some more or in cases than in others less elongated, The eye-spots are always distinct, each evidently consisting of two separate pigment-masses, the line of demarcation being clearly defined In the specimen figured a on the slide, elongated and more uniform in outline behind than in front ratus there are two ; the eyes are much more being, nevertheless, thicker Connected with the eyes and buccal appamuscular masses, which laterally disposed fill up the longitudinal halves of the cephalic segment The buccal cavity itself is tolerably well defined, being funnelshaped and apparently closed behind The oesophagus takes its origin at the upper and back part of the sac, immediately behind almost a peculiar form of dental apparatus which guards the pharyngeal This structure forcibly reminds one of the gastric teeth found in decapodous Crustaceans, and appears to consist of a central and two lateral horny pieces, which, acting upon one opening another, serve to comminute the food only partially broken up by the buccal organs The intestinal canal can be traced throughout the entire series of segments, and on either side of it runs a conspicuous vessel filled with highly coloured blood I have not observed any trace of reproductive organs, a circumstance which alone renders it highly probable that we have to with a larval The last or thirteenth segment is considerably narrower than those of the body proper The eight long spines are jointed at the base, where they are comparatively thick, becoming gradually attenuated towards the tip the segment itself is also slightly insect ; The length of each spine than that of the caudal segment, and fully four times longer than those of the smaller series placed nearer to the increased in breadth at the lower end is somewhat less end of the segment these latter project at a right angle from the tip, and not appear capable of retroversion ; OF DIPTEE0U8 LAEVA In the above description I have pxirposely refrained from enterowing to the imperfection ing into very minute particulars, my preserved observable in specimens I have ventured, however, few particulars, hoping at some future time to analyse more accurately fresh and Kving examples, should I have the good fortune to meet with them I cannot conclude these remarks without expressing my thanks to relate these my friend Dr T Spencer Cobbold for his excellent drawings, from which the accompanying figures have been copied to ^32 yS' DESCRIPTION OF CUT AS REDUCED Fig Fig Three larvae (a, h, c), of the natural size The specimen marked Fig Cephalic h, oesophagus pharynx tour, X ; ; c, c, X8 diameters segment of the specimen (marked pharyngeal teeth /, muscles to the eyes ; ; d, g, eyes ; e, a) : a, buccal cavity muscles of the mouth and integument showing a double con- about 70 diameters Feb 2l9t, 1861 1* MR WALKEE ON DIPTEBA COLLECTED AT r Catalogue of the Dipterous Insects collected at Gilolo, Ternate, and Ceram, by Mr E Wallace, with Descriptions of New By Francis Walker, Esq., F.L.S Species [Read Feb 21, 1861.] GrlLOLO Fam TIPULID^, Haliday Gen LiMNOBiA, Meigen species belongs to Meigen's Div The following vol i p 122, pi fasciis Bijptera, Fotm Lsetc ochracea, antennis, abdominis LiMNOBiA EUCHROMA D 15 f quatuor pedibusque nigris, alls nigricantibus, halteribus apice nigris Female Bright ochraceous minutely setose, a little black bands, 2nd band ; antenna; black, setaceous, submoniliform, longer than the head much the latter angular in front, 4th legs black, slender ; Pam abdomen with four band much broader than the 2nd veins and knobs of the halteres ; wings blackish Length of the body black ; broader than the 1st and than the 3rd, lines; of the wings 12 lines STEATIOMID^, Saliday Gen Ptilocera, Wied Ptilocera 4-dentata, Fahr Stratiomys cinctilInea, See Vol I p 7- Gen, Stratiomts, Qeoffr n s Fcem Nigra, capite anthracino nitente, peristomatis lateribus, antennis basi, scutelli dentibus duobus margine flavescentibus, pedibus halteribusque abdominisque flavis, alis subcinereis Black Female side ; ; head coal-black, shining antennae yellowish at the base, of the head ; ; peristoma yellowish on each much shorter than the breadth thorax with slightly gilded pubescence ; scutellum with two pale yellowish teeth ; abdomen with a narrower yellowish border legs and halteres yellow ; wings slightly cinereous ; veins black Length of the body lines of the wings lines ; Gen Clitellaria, Meigen Clitellaria bivittata, Fabr See Vol L p Gen Sarqus, Fabr Sargus tarsalis Walk See Vol V p 274 Sargus tibialis, Walk See Vol V p 273 GILOLO, TEBNATE, AND CERAM Gen Massictta, Walk Massicyta cerioides, Walk See Vol III p 79- Gen SoLVA, Walk SoLVA HYBOTOiDES, n luteis (mas) aut flavis Mus s lide flavis, thoracis lineis et Fcem Nigra, antennis basi pal- abdomine pedibusque lateralibus scutello (foem.), abdominis disco foem nigro, tibiis posticis nigris, alis cinereis Male and Female mouth and Black; palpi pale yellow; antennae lanceolate, shorter than the breadth of the head, pale yellow at the thorax with a humeral callus and an elevated line along each base ; side and the scutellum luteous in the male, pale yellow 'pubescence slightly gilded abdomen luteous, ; in the female with the exception of the hind borders of the segments in the male, pale yellow hind tibiae cinereous lines ; black, curved veins black ; of the wings 6-8 ; in the female; middle ; tibiae ; disk black in the female, legs luteous ; hind femora incrassated; ; wings Length of the body 3-4 black in the middle halteres pale lines Fam ASILID^, Leach Subfam Dastpogonites, Walk Gen Dastpogon, Fabr Dasypogon SOLUTUS, n nigris, vittis abdomine rufo clavato pedibus nigra, Mas Niger, capite thoraceque s antennis linearibus, thorace halteribusque quatuor pectoreque apicem rufis, fasciis versus piceo alis fascia apice cinereis auratis, duabus basali nigricanti- cinereis Male Black few pale ; head with pale gilded tomentum bristles ; as long as the breadth of the head; thorax gilded tomentum short, broad, abdomen ; ; epistoma Antennae eyes with very small facets flat, with a linear, nearly and pectus with pale thorax with four black stripes, the lateral pair obliquely intersected; pectus with two black bands; red, clavate, with a black band near the base, the four last segments with slightly piceous disks ; legs red, robust ; femora with a few stout black bristles ; tarsi black towards the tips ; wings cinereous, blackish cinereous towards the tips and along the adjoining part of the hind border; veins black, tawny Length of the body 10 Dasypogon semifilatus, auratis, tliorace vittis abdomine clavato reis, at the base; halteres red lines; of the wings 12 lines quatuor n s latis Fam fasciis tribus anticis fulvis, halteribus flavescentibus Niger, capite thoraceque pectoreque fasciis pedibus duabus nigris, rufis, alis cine- MR F Black Female stoma flat, ; WALKER ON DIPTEEA COLLECTED AT head with gilded tomentum, cinereous behind ; epi- with two pale bristles palpi short ; ; antennae mutilated thorax and pectus with gilded tomentum, the former with four broad black stripes, the latter with two black bands ; abdomen clavate, about twice the length of the thorax, very slender towards the base, where it dilated is tawny bands, 3rd band in- fore part with three ; terrupted in the middle, dilated on each side; black tarsi ; legs red, slender; posterior femora and tibiae with a broad black middle band ; wings cinereous ; veins black ; halteres yellowish the body lines ; of the wings lines Length of Subfam Laphrites, Walk Gen Laphria, Fair See Vol V p 146 11 Laphria tristis, Dol 12 Laphria comes Walk 13 Laphria conveniens Walk 14 Laphria setipes, narum n See Vol III p 86 See Vol V p 278 Mas Cyanea, s capita argenteo, anten- articulo 3° lineari, thoracis lateribus anticis pectoreque albo to- mentosis, abdomine purpureo longo, pedibus purpureis longissime setosis, femoribus posticis incrassatis, nigricantibus dimidio basali alis cinereo, halteribus albis ; head silvery in front, thickly clothed beneath with white mystax with a few black bristles ; third joint of the antennae conical at the tip ; pectus and sides of the thorax in front with Male Blue hairs ; linear, white tomentum ; abdomen length of the thorax tarsi ; purple, slender, linear, about twice the legs purple, thickly clothed to the tips of the with long black and white bristles partly blue ; ; femora much incrassated, wings blackish, cinereous for nearly half the length from the base; veins black ; halteres white Length of the body lines ; of the wings 12 lines 15 Laphria flagellata, n s Mas et Fcem Nigra, capite aurato, antennarum articulo 3° lato fusiformi, pectore albo tomentoso, segmentorum abdominalium marginibus posticis lateralibus albis, pedibus purpureo variis, alis nigris basi cinereis Mas Abdomine pm'pureo Male and Female with white hairs Blue ; head brightly gilded in ; mystax with several black third joint broad, fusiform ; front, clothed bristles pectus with white ; beneath antennae black, tomentum ; abdomen with white tomentum on the hind borders of the segments; legs partly purple, thinly beset with black, cinereous towards the base Abdomen lines purple black and white bristles; wings veins and halteres black Male ; Length of the body 4^-5 lines ; of the wings 8-9