ENTOMOLOGY STATIC UNIRED STATES DEPARTMENT OF AGRICULTURE LIBRARY Book number “enait 1 aS PRESENTED BY ~ 9 ee eo eae 7 . Bureaus of Ent oitol a | ey heat S Onapanti — c BOL Wier Datlv Le Sic ee ri Sr ms (ibs nes wo Le Ch Nn) or ILLUSTRATIONS BRITISH ENTOMOLOGY ; Synopsis of Indigenous Inserts: CONTAINING THEIR GENERIC AND SPECIFIC DISTINCTIONS; WITH AN ACCOUNT OF THEIR METAMORPHOSES, TIMES OF APPEARANCE, LOCALITIES, FOOD, AND ECONOMY, AS FAR AS PRACTICABLE. BY JAMES FRANCIS STEPHENS, F.L. anp ZS. V. PRESIDENT OF THE ENTOMOLOGICAL SOCIETY OF LONDON, ETC. EMBELLISHED WITH COLOURED FIGURES OF THE RARER AND MORE INTERESTING SPECIES. MANDIBULATA. VOL. VI. “In his tam parvis tamque feré nullis que ratio! quanta vis! quam inextricabilis perfectio! ’— Plin. ‘Finis Creationis Telluris est gloria Drt, ex opera Nature, per Hominem solum.”—Linné. LONDON: PRINTED FOR THE AUTHOR. AND PUBLISHED BY BALDWIN AND CRADOCK. ———e 1835. roman LONDON | 6. BALDWIN, PRINTER, NEW BRIDGLeSTRET. * eee cue oe € Gg cig git fel e)® ¢ PU ONNEC HTM her AIG eee ‘ Cue < eye © ee een, aa 268424 ILLUSTRATIONS OF BRITISH ENTOMOLOGY. Orpver II —DERMAPTERA, De Geer. Wings very broad, ovate-triangular, with radiating nervures, folded longitu- dinally and transversely ; stigma large, coriaceous, projecting (during repose) beyond the melytra, which are short, subquadrate, with a straight suture (as in the Coleoptera), and truncate at the apex. Body linear, nine- jointed in the males, seven-jointed in the females, and furnished at the apex with horizontally moveable appendages, more or less curved in the males, and straight in the females. Metamorphosis semicomplete. Although probably this order is not of equal value with the Coleoptera or Orthoptera, nevertheless I shail still consider it as distinct, as placed in the commencement of the first volume; with the former it agrees in having coriaceous elytra, destitute of nervures, and united by a straight suture; while it differs therefrom in its trophi, in which it agrees with the Orthoptera, but from them its elytra remove it. ‘The order at present consists of a single family, whence its relative value becomes questionable: it was established by Kirby, in the Linnean Transactions, as the suggestion of Leach, but De Geer had previously noticed it, and his name is employed. Famity I.—FORFICULIDA mihi. Antenne filiform, the articulations distinct, variable in number, the basal one most robust, the second smallest, the remainder more or less inconstant in length; palpz filiform, with the terminal joint oblong-cylindric ; labrum rounded, entire ; mandibles curved, bifid at the apex ; head scarcely broader than the thorax, flat, porrected ; eyes slightly prominent ; thorax somewhat quadrate, flat, especially on the sides; body slightly convex above and below, and armed at the tip with forceps; legs remote, nearly equidistant and simple, formed for running ; ¢arsi triarticulate, the intermediate joint very short, and sometimes bilobed. Manprsunata, Vou. VI., 307TH Apri, 1835. AQ + MANDIBULATA.—DERMAPTERA. The only family of this order is the present; the insects of which it consists are very lively and active; the larva and pupa resembling the imago, excepting that they have only the rudiments of wings, and the anal appendages are less produced; the eggs are white and shining, and are deposited in dung-hills, under clods of earth, &c., and the parent is said to attend them with great care until hatched, when she equally superintends the young larvee. The following genera have been distinguished, which may be known by the subjoined concise characters: — Tarsi articulo bifido: antenne articulis 12—14; Alati: 1. Forricuta. : : Apteri: 2. CHELIDURA. intermedio simplice : antenna articulis M8 2 bi. 20 aut plurimis: 4. Lasipura. Gexus I. FORFICULA Auctorum. Antenne moderate, consisting of from thirteen to fifteen joints, of which the basal one is somewhat robust, but attenuated towards the base, second very short, third nearly as long again as the second, fourth of the same length as the second, the remainder slender, elongate-cylindric, the terminal one being obtuse. Palpi moderate, rather slender, the terminal joint a little attenuated towards the apex, which is truncate ; head somewhat triangular ; thorax truncate anteriorly, with the angles uearly straight, or rounded posteriorly ; body glabrous ; wings ample ; abdomen in the males with the caudal appendage curved and acuminate at the apex, the base dentate within ; in the female nearly straight, and slightly crenulated within; tarsi with the intermediate joint bilobed. The insects of this genus, known by the familiar name of earwigs, from their supposed propensity to penetrate into the ear, arising simply from their endeavour to secrete themselves from the light, when accidentally disturbed and falling upon the human head, are extremely vivacious and nimble, but, at least in this country, rarely employ their beautiful wings in flight: they differ from the other genera by having the intermediate joint of the tarsi bilobed, from bearing wings, and in the relative number of articulations of the antenne ; but from the extreme liability of these organs to fracture, owing to the nimbleness of the insects, some of the terminal joints are frequently wanting during the life of the animal. Sp. 1. auricularia. Piare xxviii. f. 1. forceps.—Rufo-picea, elytris pallidio- ribus, pedibus thoracisque marginibus pallide testaceis, capite ferrugineo anticé nigricanti, forcipe brevi, semicirculari, testaced apice nigricanti famine subrectéd. (Long. corp. 6—83 lin.) HN London, Lud tashet by JF. Stephens, 7. Oct. 783 4. FORFICULID#.—FORFICULA. 5 Fo. auricularia. Linné.—Wood, i. pl. 30.—Steph. Catal. i. 299. No. 3299. Head ferruginous, more or less dusky in front, eyes black; thorax much depressed, black, with pale margins; elytra about one-fourth the length of the abdomen, pale red; abdomen of a rusty-black, or pitchy-red, the margins of the segments sometimes paler; the apex in the males furnished with a pair of abbreviated, somewhat semicircularly curved forceps, armed with a tooth within at the base, meeting at the tip; in the female they are nearly straight, being faintly incurved towards the apex, and very finely crenulated within ; in both sexes they are testaceous, with the apex dusky ; legs very pale testaceous ; in immature specimens nearly white. The difference in the form of the forceps, exclusively of other distinctions, as shown in the accompanying figures, will enable the reader to understand the species. Extremely abundant in gardens throughout England, and very injurious to flowers by destroying the petals, to the great annoyance of the floriculturists. Sp. 2. media. Pirate xxviii. f. 2. forceps.—Capite ferrugineo oculis thoraceque nigris, hoc marginibus elytris pedibusque pallidis, forcipe subelongata tenue, pallida, in femina subincurvatd. (Long. corp. 45—72 lin.) Fo. media. Marsham.—Steph. Catal. i. 299. No. 3300. Head ferruginous ; eyes and thorax black, the margins of the latter broadly pale ; elytra, legs, and forceps, very pale, the latter slightly elongate, very slender, not semicircular, and in the females somewhat incurved at the apex ; abdomen pale testaceous, dusky on the terminal segment ; antenne pale. Not common; found in the vicinity of London, and at ‘ Cam- bridge.”—C. C. Babington, Esq. Sp. 3. borealis. Pirate xxviii. f. 3. forceps.—Capite toto ferrugineo, oculis atris, thorace nigro marginibus pallidis, elytris testaceis, abdomine ferrugineo- testaceo, forcipe subelongata subelliptica piced basi pallida, in famina subrecté, apice decussatd. (Long. corp. 7—10 lin.) Fo. borealis. Leach MS.—Steph. Catal. i. 299. No. 3301. Head entirely ferruginous ; eyes black; thorax short, black, with the lateral margins broadly pale; elytra dull-testaceous ; abdomen rusty-testaceous, somewhat pitchy at the base of each segment, and very finely punctured, the terminal segment broad, very faintly punctured, with an obtuse lateral protuberance, and at the apex two tubercles, with a small fovea between them anteriorly ; forceps slightly elongated, the two sides forming some- what of an elliptic figure, the base pale red, the inside and towards the apex pitchy, at the base within a small tooth; nearly straight, but similarly coloured in the female ; legs pale-reddish. Extremely abundant in some parts of the country, on oaks, espe- 6 MANDIBULATA.—DERMAPTERA. cially at Darenth wood, in June: it also occurs in plenty at Dover, and near Edinburgh. ‘ Berwick upon Tweed.”—C. C. Babington, Esq. Sp. 4. forcipata. Pxiare xxviii. f. 4.—Capite toto ferrugineo, oculis atris, thorace pallido vitté longitudinali atra, elytris pallide testaceis, abdomine fer- rugineo-testaceo, forcipe elongata paullo incurvata pallida, apice piced, in femina subrecta, apice decussata. (Long. corp. 8—10 lin.) Fo. forcipata. Steph. Catal. i. 299. No. 3302. Head totally ferruginous ; eyes black ; thorax pale, with a broad longitudinal streak ; elytra pale testaceous ; abdomen rusty-testaceous, finely punctured, and with the terminal segment as in Fo. borealis, and armed in the male with a pair of very long forceps, which are slightly incurved, armed with a large triangular tooth within rather distinct from the base, of a pale red, with the extreme inner edge and the apex somewhat pitchy ; in the female nearly straight, being only alittle decussating at the apex ; legs very pale, with straight tibie. Less abundant than the last: found at Coombe wood on high trees, and also in the New Forest. ‘‘ Bath."—C. C. Babington, Esq. Genus II.—_CHELIDURA, Latreille? Antenne moderate, twelve-jointed, the basal one stout, the second very minute, third rather slender and longish, the remainder of nearly equal length and form, the terminal one long, a little ovate at the apex. Palpz as in Forficula; head small, rounded-triangular ; thorar quadrate, depressed ; body glabrous; elytva short, truncate; wings none; abdomen slightly widened towards the apex, the base with an elongate carina on each side, the apical joint with four tubercles, with a truncate-quadrate projection between the forceps, which are remote at their origin, slightly bent, and have a tooth in the middle of the inner edge in the male; they are nearly straight and simple, but remote in the female. Not having Latreille’s Familles Naturelles to refer to, I am not positive that this is really synonymous with his genus Chelidura, but I believe that I am correct. I am equally uncertain as to the name of the species, from being unable to obtain a sight of Hagenbach’s Fauna Helv., to which Charpentier refers, without describing the insect, but in his observations he notices sufficient to enable me to arrive at the fact. The present genus not only differs from Forficula in being totally apterous, but in having the forceps remote at their origin, as in Labidura, with a tooth in the middle of the inner edge, and a quadrate appendage to the terminal joint of the abdomen FORFICULIDZ.—LABIA. 7 between them; the number of articulations in the antenne is fewer than in Forficula, with which genus it agrees in having bilobed tarsi. Sp. 1. albipennis? Prats xxviii. f.5.forceps.— Testaceo-pallida fronte nigricante, thoracis medio abdominisque vitta abbreviata laterali nigris, forcipe elongata subrecta, apicé paullo incurvata latera interno dente medio instructa, in faemina fere recta. (Long. corp. 4—5 lin.) Fo. albipennis. Charpent. Hore Ent. 68.—Fo. media. Hugenbach, Faun. Helv. p. 16, f. 7 ?—Steph. Nomen. 2d edit. Appendix.—Fo. centralis. West- wood MS. Very pale testaceous, the head rather dusky in front ; the middle of the thorax obscurely black ; the abdomen with a distinct abbreviated black streak on each side at the base, the segments to which it extends having an elevated line: the forceps are long, not very much bent, being a little incurved at the tip, and on their inner edge bear a single triangular tooth in the middle, and at the base are a little waved: in the female the forceps are very slightly incurved at the extreme tip only; and in both sexes they are entirely pale. The colours are occasionally a trifle darker in tint. The only examples I have seen of this very distinct species were taken at ‘‘ Ashford, Kent, June.”"—J. C. Westwood, Esq., to whom I am indebted for the insect and the loan of his specimens. _ Genus ITI.—LABIA, Leach. Antenne short, rather stout, consisting of from ten to twelve joints, basal one stoutish, second very short, third not so long as the fourth, which is stouter, and exceeds the second in length ; remainder gradually increasing in length, somewhat elongate-ovate, and stoutish, the terminal joint shortish and more slender. Palpi short, slender, terminal joint truncate pubescent; head rounded ; thorax slightly rounded in front, with all the angles rounded ; body pubescent ; abdomen with the caudal appendage in the male slightly incurved, and armed with numerous minute denticulations within, in the female straight and simple ; ¢arsz with the intermediate joint simple. From Forficula the simple intermediate joint of the tarsi, in addition to the dissimilarity of the forceps, as also the fewer joints of the antennz, distinguish Labia, as the latter character will from Labidura, in addition to other discrepancies—the present genus consists of but one indigenous species, which is extremely active, and flies elegantly in the sunshine, whereas the true Forficul very rarely fly, at least in this country. ms) MANDIBULATA.—DERMAPTERA. Sp. 1. minor. Pubescens, testacea, capite nigricante, ore pallido, thorace fusces- cente, elytris pallidis, antennis fuscis apice albidis. (Long. corp. 3—4 lin.) Fo. minor. Zinné.—La. minor. Samouelle, pl. 4. f. 16.—Steph. Catal. i. 299. No. 3303. Pubescent ; head dusky, rather pale; eyes black; thorax rather fuscescent, finely punctured ; elytra very pale, and also very finely punctulated ; abdomen reddish, black in the middle, the terminal segment in the male with a ridge, and armed with slightly incurved forceps, which are furnished within with numerous equal denticulations: in the female they are straight and scarcely denticulated ; legs pale yellowish. Very abundant in the spring, throughout the metropolitan district, flying about in gardens and near stables, &c., especially in the vicinity of dung-heaps. ‘* Berwick-on-Tweed.”—C. C. Babingion, Esq. Genus IV.—LABIDURA, Leach. Antenne rather long and slender, with about twenty-five joints, the basal one stoutish, second minute, third rather longer than the fourth and fifth (which are scarcely longer than the second) united, the five or six following also short and stoutish, but gradually increasing in length and decreasing in breadth; the remainder are slender and elongate, and not very distinctly separated, each articulation being about equal in length to the third. Palpi rather long, terminal joint somewhat rounded at the apex; head elongate, triangular, wider than the thoraz, the latter truncate, and with acute angles in front, rounded behind, the disc much depressed ; body glabrous ; abdomen, in the males, with the caudal appendage remote at the origin, slightly curved upwards and approximating at the apex, denticulated behind the middle within; in the females approximating atthe base, denticulated within from thence nearly to the apex, the tips decussating ; tarsi pubescent beneath, with the intermediate joint simple. Exclusively of the form of the forceps, which are remote at their origin, and of the intermediate joints of the tarsi, the numerous abbreviated articulations of the antennae remove this genus from Forficula, as the last character does from Labia. Sp. 1. gigantea. Ochreo-pallida, supra nigro variegata, ano bidentato, Sorcipe porrecta unidentatd. (Long. corp. 1 unc. 3—5 lin.) Fo. gigantea. Fabricius—Donovan, v. xiv. pl. 500.—La. gigantea. Steph. Catal. i. 299. No. 3304. Pale, with a reddish or ochreous tinge; eyes black ; thorax with two dusky black streaks on the disc, placed obliquely, the margins very pale, the disc with a longitudinal channel; elytra also with an oblique blackish streak ; ORTHOPTERA. 9 abdomen with the base of each segment, excepting the terminal one, both above and below, broadly black, and punctured, the terminal one with two short dusky teeth, immaculate and impunctate ; forceps slightly rufescent, the apex and tooth dusky ; legs and antenne very pale. This splendid species has hitherto been found only in the vicinity of Christchurch, where it occurred once in plenty, and numerous examples were secured by the late Rev. W. Bingley, from amongst which I have a fine series. Its native origin is questioned by Mr. Kirby, in his valuable Introduction to Entomology, from the circumstance of other examples not occurring,* but the practical entomologist need scarcely be reminded that various insects which at one season occur in swarms are not to be found subsequently for a long period. Orver III.—ORTHOPTERA, Olivier. Wings four, unequal, anterior or elytra coriaceous, reticulated with nervures, more or less incumbent, covering the posterior or true wings, the latter longitudinally folded and ample, with reticulated nervures ; mouth mandi- bulated ; legs various. Metamorphosis semi-complete. The insects of this order, which has been but little attended to in this country, are frequently of very large size; they may be known from the Dermaptera by having the elytra more or less lapping over at the apex of the suture, and in having their surface reticulated, the wings themselves are only folded longitudinally ; the tibiee, at least the posterior, are mostly very spinous; the males have the apex of the abdomen frequently armed with two processes, and the females have frequently a long, exserted, ovipositor: the larva and pupa resemble the imago, are very active and voracious, frequently remain above a year before they undergo their final change: their * In refutation of such an opinion, the sudden appearance of swarms of Endomychus coccineus at Coombe wood, in the autumn of 1816, as noticed in vol. iv. p. 399, may be referred to, since which period only one or two stragglers have been there taken; as also the apparent disappearance of Cucujus Spartii in the same locality, for which insect, which occurred in profusion there two years since, I sought in vain on the 21st ult.; as well as the myriads of Thecla W-album at Ripley in 1827 (now apparently again lost, as I have not seen the insect there since), exclusively of numerous other examples that will immediately suggest themselves to the practical entomo- logist. Manprsutata, Vou. VI., 3lst May, 1835. B 10 MANDIBULATA.—ORTHOPTERA. food is various, and like the insects of the preceding order, they will prey upon their own species: the indigenous species appear divisible into the following families, thus concisely distinguished :— Corpus compressiusculum ; Tarsi 4-articulati; pectus laminatum: . f e 1. GRYLLID. 3-articulati 5 Antenne filiformes, breves; ale simplicitér plicate: 2. LocusTip«. setacee, elongate ; ale subulato-complicate : 3. ACHETID&. applanatum, ovale; ¢arsi 5-articulati : 3 4 - 4, BLATTIDA. Famity I1.—GRYLLIDA, Leach. Tarsi four-jointed ; antenne very long, slender and setaceous ; head large, vertical; forehead convex, sometimes acuminated in front; eyes vertical, more or less prominent; thorax flat above, the sides rather suddenly deflexed, rounded behind ; body somewhat compressed, shining, glabrous ; breast mostly with two oval foliated plates; elytra vertical, descending on each side, and often longer than the abdomen, the latter compressed with two processes at the apex in the male, and a lengthened compressed ovi- positor in the female; legs elongate, approximating at the base; four anterior slender ; posterior pair very much elongated, with large femora, and spinose slender tibie, which are tetragonal. The insects of this family are nearly all of great bulk, arising principally from the length of their members, the antennz and posterior legs especially, their body being comparatively short: they are chiefly found in the autumnal months, and frequent hedges by the sides of woods, or grassy places; some of them are very local, and appear to affect chalky regions; others are found on trees: the males of some species make a loud stridulous noise by the friction of the membranous elytra: the females have invariably a long exserted ovipositor. The species of this family have hitherto been associated, at least in this country, under one genus, viz. Acripa, but their habit is so various as to call for divisions, and Mr. Curtis is even induced to observe, ‘‘it is difficult to find characters that will embrace even the insects that are now included in this genus:” I shall, therefore, follow up the plan that has been lately sketched by Latreille and Serville, and endeavour to divide the indigenous species into genera, and which upon a prima facie appearance may be thus cursorily characterized :— GRYLLID©.— lh PHIPPIGERA. 11 Vertex plus minus acuminatus ; ocudt prominuli, exserti: Elytra brevissima, in feeminis nulla: . ° ° - J, EPHIppicrEna. elongata : Ale incomplete : . . . ° - 3. XIPHIDION. perfect, ample. Elytris (in masculis) ocellatis; @ ovipositore incurvo: 4. MECONEMA. (in utroque sexi) inocellatis; ? ovipositore recto: 5. PHASGONURA. obtusus, latus ; ocwli vix prominuli, sessiles. bo . MicrRopTERYx. . DECTICUS. Elytra plus minus abbreviata: . ‘ . ‘ ir) abdomine longiora : 3 ° . . A Genus I. EPHIPPIGERA, Latreille. Body generally large, stout and heavy, slightly rugose, but rarely smooth ; eyes small, globose, very prominent; forehead gibbous, with a tubercle between the antenne, the latter inserted in a cavity between the tubercle and the eyes, the basal joint very robust, the second also stout, but smaller, the remaining joints very slender; thorax rounded above, with the sides somewhat deflexed, scabrous and unequal ; elytra very short, arched and ocellated in the males ; very minute, resembling a roughened scale in the females ; wings none; abdomen with a deep groove beneath and at the apex in the males, with an ascending scale-like bimucronated process ; in the females with a moderate, broad, incurved ovipositor ; legs very slender. The only indigenous species of this singular genus may be known by the very small size of the incumbent elytra in the males, and the almost total absence of these organs in the females, in which sex they are merely represented by a rugose scale; added to which the crown is acuminated and the eyes very prominent; and the apex of the abdomen in the male is furnished with a bimucronated ascending scale below, and of the female with a broad short incurved ovipositor. Sp. 1. virescens. Prasinus, thorace utrinque lined laterali alba. (Long. corp. ¢ 5—6 lin.; ovip. inc. 9—10 lin.) Ac. virescens. Steph. Catal. p. 300. No. 3309.—Barbitistes autumnalis. Charp.?—Lo. autumnalis. Hagenbach, Symb. Faun. Ins. Helv. 25. fig. 14? Green, nearly glabrous; thorax with a narrow white line on each side, extending from the eyes to the hinder margin; elytra in the male rugose, depressed in the middle, and with a smallish ocellus towards the apex ; in the female resembling two small semicircular scales of a bright green, and slightly shagreened. In dried species the rich green fades to a dirty-brown, excepting the elytra and ovipositor of the female, which retain most of their brilliant tint ; the tibia become reddish, &c. 13) 2) 12 MANDIBULATA —ORTHOFTERA. Not common; found occasionally in August and September at Darenth and Birch woods, and also near Hertford, and in the New Forest and in Dorsetshire. Genus II.—MICROPTERY X* mihi. Body moderately stout, glabrous; eyes scarcely prominent, sessile; head gibbous, front broad, obtuse, rounded ; antenne very slender, moderately long, inserted in a cavity between the eyes, the basal joint short and robust, second small; thorax somewhat flattened above, the sides suddenly and considerably deflexed, rounded behind, the posterior and lateral margins elevated; elytra rather short and incumbent, or longish and deflexed, ocellated in the males, sometimes appearing as a minute scale in the females, at others nearly as ample as in the males ; wings none, or rudimentary ; abdomen gibbous beneath, furnished at the apex above with two short acute processes, in the males beneath with two others, and in the females with an incurved ovipositor. The insects of this genus may be recognized from the foregoing by having the elytra nearly as long as the abdomen, combined with a broad obtuse front, with the eyes scarcely prominent, and sessile: they frequent grassy places, and, from the brevity of their wings, they are found on the ground. Anisoptera, having been previously published, I have employed a new appellation here. A. Elytra abbreviated and incumbent in the males; wanting in the females. Sp. I. aptera. Grisea, capite thoraceque levibus, lined utrinque laterali femori= busque posticis extus vittd longitudinali nigris, elytris maris brevissimis, femine nullis. (Long. corp. ¢ 7—8; ? ovip. incl. 10—12 lin.) Lo. aptera. Fabricius.—Ac. aptera. Steph. Catal. 300. No. 3305. Griseous, or fuscous-brown; head large, smooth, broad, and rounded in front; antenne longer than the body, testaceous, with the basal joint brown; thorax smooth, subconvex above, with a broad black streak on each side extending from the eyes to the hinder margin; elytra of the male very short, incumbent, the left one with a thickly veined opaque space, and the right one with a round pellucid space; female with two rounded flat scales in lieu of elytra, and both sexes destitute of wings; abdomen yellowish beneath ; ovipositor in the female short, falcate, fuscous ; posterior femora with a black streak at the base without. Not common: I have taken it in a wood at Hertford, and also near Darenth in September. I have also obtained it from the New Forest. * uxpog parvus, wrepoy ala. GRYLLID.E.—MICROPTERYX.—XIPHIDION. 13 B. Elytra rather elongated in both sexes and deflexed. Sp. 2. Roeselii. Vuiridis vel testacea, thoracis lined dorsali postice elevata, . margine omni thoracis partis deflexo albo seu flavido, abdomine vittis duabus sublateralibus atris, femoribus posticis externé vitid nigrd. (Long. corp. $ 6—7 lin.; ¢ ovip. incl. 10—11 lin.) Lo. Roeselii. Hagenbach, Symb. Faun. Ins. Helv. 39. f- 24.—Ac. Kirbii. Steph. Catal. 300. No. 3707. Green or testaceous; thorax with an elevated dorsal line behind, the anterior margin of the deflexed portion white or yellowish, sometimes bright green ; elytra horn-coloured, with a yellowish streak on the shoulders; abdomen with two black streaks towards the sides, and posterior femora with one on the outside at the base; ovipositor short and much curved. This species appears to be very rare in this country. I have hitherto seen, so far as I remember, two examples only, which are in my own collection, and were found in the vicinity of the metropolis in the autumn, IJ believe at Hampstead. Sp. 3. brachyptera. Viridis vel grisea, thoracis lined posticé elevaté margine lateris deflext postico albo, elytris margine antico et postico viridibus, interdum totis griseis, femoribus posticis interné et externé vittd nigra. (Long. corp. $ 5—6; ¢ ovip. incl. 9—11 lin.) Gry. brachypterus. Linné.—Ac. brachyptera. Steph. Catal. 300. No. 3306. Ac. Kirbii. Dale MS. Green or griseous ; thorax with an elevated dorsal line behind, the hinder edge of its deflexed portion alone white; elytra with the anterior and posterior margins bright green, or entirely griseous in the females ; posterior femora with a black streak at the base, both in the outer and inner surfaces, the inner one shortest ; ovipositor of the female rather long and straightish. Not uncommon in the New Forest, and occasionally in the vicinity of the metropolis: I have taken it at Coombe and Darenth woods, and also near Ripley, in July and August. Genus III.—XIPHIDION, Latreille. Body rather slender, glossy; eyes prominent, exserted ; head conspicuously acuminated in front ; antenna about thrice the length of the body, very slender, with the basal joint very robust, produced within, the second rather smaller, the other joints considerably attenuated; thorax rounded above, with the sides gradually deflexed ; elytra more or less elongate, nearly or quite as long as the abdomen, ocellated in the males; wings small, or rudi- mentary ; abdomen. somewhat cylindric, with four very short styles at the apex in the males, and two in the females, the latter sex with a short slightly curved, or longish and nearly straight ovipositor. 14 MANDIBULATA.—ORTHOPTERA. The elytra are rather longer in this genus than in the insects of the foregoing, in addition to which the forehead is acute, and the eyes prominent and exserted; the wings are very short, but the antennee are remarkably long and slender. Sp. 1. fusca. Viridis, vertice, thoracis dorso, elytrisque fuscis, his longitudine abdominis, margine exteriore pallido ; femine ovipositore recto. (Long. corp. 5—6 lin.?) Lo. fusca. Fabricius.—Ac. fusca. Curtis, fol. 82 (!}—Ac. fusca. Steph. Catal. 300. Vo. 3308. Green, with the crown, the back of the thorax and the elytra fuscous, the latter as long as the abdomen, and with the outer margin pale ; ovipositor of the female straight. ‘I am not positive whether this species is truly indigenous; Mr. Curtis marks it as being in his collection, but as I know he possesses the following species, which he does not indicate, he may be in error. Sp. 2. dorsalis. Viridis aut testacea, striga laté brunnead in dorso verticis thoracisque, elytris corpore dimidio brevibus, antennis longissimis 5 feemine ovipositore subrecto, testaceo. (Long. corp. 5—7% lin.) Lo. dorsalis. Latr. Hist. Nat. Crust. &c. xi. 183.—Charp. Hore Ent. 112. pl. 2. f. 4.—Ac. dorsalis. Steph. Nomen. 2d edit. col. 109. Green or testaceous, with a broad brown streak on the back of the crown and of the thorax; elytra half as long as the abdomen, the latter green, with paler rings, or testaceous-yellow ; ovipositor in the female rather short, almost straight, being but slightly curved ; antenne very long and slender. This insect is not unfrequently met with in the New Forest, and in the neighbourhood of London: it occurs towards the end of July or beginning of August. ‘‘ Cambridge."-—C. C. Babington, Esq. Genus IV.—MECONEMA, Serville. Body rather slender and attenuated; head acuminated in front between the antenne ; these organs very long and slender, with the basal jot thick, the second also thickened, but considerably smaller than the first ; maxillary palpi with the terminal joint rather short, and considerably thickened at the apex, which is truncate ; eyes very prominent ; thorax rounded above, and gradually deflexed on each side ; elytra ample in both sexes, not ocellated in the males; wings also ample, as long as the elytra, which extend to the apex of the abdomen, this last in the males somewhat truncate, and fur- nished with two long incurved processes, in the females with a curved GRYLLID£.—MECONEMA.—PHASGONURA. 15 ovipositor ; four anterior legs rather long and slender ; posterior compara tively short. In this genus the elytra are as long as the abdomen, and in the males are not ocellated, by which character, added to the elongated incurved processes at the apex of the abdomen, and its acuminated forehead, that sex may be recognized, and the female by this last character, combined with the ample wings: one indigenous species only occurs, which frequents trees, and appears in the autumn. Sp. 1. varia. Flavescens, thorace viridi flavo-lineato, maculisque duabus nigri= cantibus, elytris viridibus. (long. corp. 6 7—8 lin.; 9 ovip. incl. 10—12 lin.) Lo. varia. Fabricius.—Gr. varius. Donovan, v. iii. pl. 79. jf. 1.—Ac. varia. Steph. Catal. 301. No. 3314. Yellowish, with a greenish tinge ; eyes brownish ; thorax smooth, green, with a yellow dorsal line, and two dusky, or black, spots towards the base, one on each side; elytra green, with a testaceous streak at the base of the suture; legs yellow; tarsi brown. Common in the autumn in oaks and lime-trees throughout the metropolitan district, especially about Hertford, and at Coombe wood and Ripley. Genus V—PHASGONURA, Westwood MS. Body elongate, stoutish, smooth; front acuminated between the antenne, the latter longer than the body, with the basal joint very robust and produced within, the second also robust, but much smaller ; the remainder extremely minute, and gradually diminishing in breadth to the apex ; eyes large, prominent ; thoraz depressed above and flattened behind, where it bears an abbreviated ridge, the sides rather suddenly deflexed, the hinder margin rounded and produced; elytra considerably longer than the abdomen, very much deflexed, immaculate, flat at the base of the suture, where in the male is an ocellar process, transparent on the right elytron; wings ample, narrowish, as long as the elytra; breast beneath with two spinous processes, and four elongate lobes ; abdomen of the males with four styles at the apex, and of the female with two and an elongate straight acute ovipositor ; Jegs moderate ; hinder femora with a groove beneath; tibie spinous, posterior with two distinct rows of minute spines. The only indigenous species of this genus may be known by having the vertex acuminated, and at the same time the eyes prominent, the elytra in the male much longer than the body, and ocellated at the base, the abdomen furnished at its apex with four short styles, and 16 MANDIBULATA.—ORTHOPTERA,. in the female with a long, straight, compressed ovipositor; beth sexes have two elongate, sharp, spiniform processes on the breast, at the base of the anterior legs, and four other long and obtuse lobes behind. Sp. 1. viridissima. Viridis, antennis capitis vertice, thorace fascia longitudinal elytrorumque suturad fusco-ferrugineis, elytris corpore multo longioribus. (Long. corp. g 1 unc. 9—11 lin.; ¢ ovip. inc. 1 unc. 10 lin.—2 unc. 1 lin.) Gry. viridissimus. ZLinné.—Donovan, v. iv. pl. 130.—Ac. viridissima. Steph. Catal. 301. No. 3313. ; Bright grass-green; head shining, yellowish beneath the eyes, the vertex rusty-brown, which colour extends in a rather broad fascia along the back of the thorax, which has an abbreviated ridge behind, and some transverse wrinkles ; suture of the elytra, and sometimes the strong longitudinal nervure, rusty-brown or testaceous; the elytra themselves, as also the wings, much longer than the body, and extending in the female to the apex of the ovipositor ; abdomen brownish-green, or dusky, sometimes with yellowish wrinkles ; ovipositor greenish, with the apex brownish; antenne with the basal joints green, the rest testaceous ; eyes brown; legs generally green. In some examples the legs are yellowish-brown, with the hinder femora green. A very common species in most parts of the country, especially in grassy places by the side of woods, and in meadows, towards the end of August and beginning of September. I have frequently taken it in Battersea fields and near Hertford: it also occurs in the New Forest and in Devonshire. Genus VI.—DECTICUS, Serville. Body stout and short ; forehead broad, very obtuse in front, glabrous ; eyes sessile, not prominent ; antenne inserted in a cavity on each side, rather shorter than the body, the two basal joints rather stout, the basal one the most robust ; thorax flat above, with a longitudinal central ridge and one on each side, the sides suddenly deflexed, the hinder margin produced and rounded ; elytra not much longer than the body, rather suddenly deflexed and maculated ; the base at the suture flat, and in the males furnished with an ocellar spot, transparent on the right elytron ; wings short, rounded, tri- plicate ; abdomen rather short and stout ; in the male with four styles at the apex, in the female with two, and a longish more or less incurved ovipositor ; legs nearly as in Phasgonura. The insects of this genus are shorter, but comparatively more bulky than those of the foregoing, from which they differ in having the head obtuse in front, the eyes sessile, the thorax flat above, and GRYLLIDE.—DECTICUS. 17 having three longitudinal ridges; the antennze are also shorter; the elytra are spotted, and in the males are not very much longer than the abdomen, furnished with an ocellus at the base; the abdomen has in that sex four small styles at the apex, and in the females a longish, more or less recurved ovipositor. Sp. 1. verrucivorus. Viridis, elytris abdomine longioribus fusco parce maculatis vittaque humerali flava. (Long. corp. 6 1 une. 5—7 lin. ; ¢ ovip. incl. 1 unc. 7—10 lin.) Gr. verrucivorus. Znné.—dAc. verrucivora. Steph. Catal. 300. No. 3312. Bright deep apple green; head with a transverse yellow streak in front ; antenne testaceous, black without; thorax entirely green, with three dorsal ridges; elytra not quite twice the length of the abdomen, with a yellow longitudinal streak at the shoulders, vanishing on the disc, the latter with a row of distinct brownish spots and a few smaller dots, the left elytron, in the male, with a rusty ocellar spot, and the right with a large very transparent one; abdomen with a small black dot on the sides of each segment, or in some examples entirely dusky ; legs with a brownish spot at the base of the hinder femora; tibie somewhat testaceous. A very local species: it once occurred in great plenty in a field near Rochester in September, where it was observed by Professor Henslow, to whom I am indebted for fine examples. TSp. 2. Bingleii. Fuscus, viridi tinctus, elytris abdomine longioribus fusco valdé maculatis. (Long. corp. 6 1 unc. 6—8 lin.; 9 ovip. incl. 2 unc. 1 lin.) Ac. Bingleii. Dale MS.— Curtis, v. ii. pl. 82.—Ac. Bingleii. Steph. Catal. 300. No. 3311. <¢ Male brown, tinged with green ; head rounded, pale and dull green; thorax of the same colour, slightly carinated, dilated behind ; abdomen piceous, edges of the segments pale; elytra pale fuscous, tinged with green, spotted with brown, the central spots the largest, interior margins green towards the base ; wings transparent greenish at their base ; Jegs griseous-yellow ; posterior thighs green at their base, variegated with brown. female dull and pale ochreous, variegated with brown; abdomen pale down the back ; piceous on the sides with irregular pale margins to the segments ; ovipositor slightly recurved, brown, with a rosy tinge.’—Curtis, l. c. Whether this be truly distinct from the preceding I am not prepared to say 5 it appears to be so; but, from Charpentier’s account, De. verrucivora appears to be a variable insect:—the above description is extracted from Curtis. The only examples known of this insect have been taken near Christchurch in the autumn by the late Rev. W. Bingley and Mr. Dale. Manpisutata, Vou. VI., 3lst May, 1835. c 18 MANDIBULATA.—ORTHOPTERA. Sp. 3. griseus. Obscurus, thorace tricarinato, carina media anticé abbreviatd, elytris abdomine longioribus, griseo subpellucidis, lineis fuscis albo strigatis. (Long. corp. 6 11—14 lin.; * ovip. incl. 14—16 lin.) Lo. grisea. Fabricius—Sowerby B. M. i. pl. 64.—Ac. grisea. Steph. Catal. 300. No. 3310. Obscure fuscous; head glossy, smooth, somewhat testaceous: eyes linear; thorax above flat, with three ridges, the central one abbreviated in front, and terminating in a furcate groove with a black base, the deflexed lateral lobe is spotted with black, and distinctly edged with pale; elytra longer than the abdomen, of a pellucid griseous tint, each with three longitudinal fuscescent streaks, faintly interrupted with transverse white ones; the left elytron in the male with an opaque space, the right with a corresponding very pellucid one; legs greenish-brown; posterior femora with a blackish longitudinal streak in the middle ; tibie testaceous. A very local species, and apparently confined to chalky maritime districts; found, not uncommonly, beneath the cliffs at Dover, towards the end of July, and also in the Isle of Wight, and I believe near Southampton. “ Dawlish, Devon, August 1829.”—C. C. Ba- bington, Esq. Famity I1.—LOCUSTID A, Leach. Tarsi three-jointed ; antenne short, filiform, sometimes thickened, or capitate, at the apex; head perpendicular, forehead descending, generally with a ridge extending backwards; eyes ovate, not prominent; thorar oblong- subquadrate, sometimes a little narrowed anteriorly, at others produced behind and concealing the wings, its sides equally deflexed ; wings simply folded, not subulated at the apex ; elytra vertical, sometimes minute, but mostly as long as the abdomen, this last more or less subcylindric, with occasionally a ridge down the back, the apex with four styles; legs un- equal ; anterior short and generally slender ; posterior elongated, with their femora ample, and formed for leaping. The Locustide, at least the major portion of the indigenous species, are smaller than the Gryllide, and from them they differ in having the antenne shorter, usually filiform, but occasicnally elavate or hooked at the extremity; the elytra are generally longer than the body, though in the less typical genera they become abbreviated or distorted, and the thorax is frequently much produced behind: the majority of the species frequent meadows, &c.: the females have not an exserted ovipositor. The indigenous genera may be thus briefly known :— LOCUSTID£.—LOCUSTA. 19 Anienne clavate : : : é ° 3 - 9. GOMPHOCEROs. filiformes, haud clavate. Thoragz postice rotundatus vix productus. Elytris plerumque longitudine abdominis . 7. Locusta. valdé abbreviatis : : - 8. Popisma. posticé longe productus: . ° - 10. Acrybium. Genus VII.—LOCUSTA,* Leach. Antenne with about twenty-four joints, short, filiform, inserted each in a cavity between the eyes ; head large, mouth conspicuous ; eyes ovate, not prominent ; ocelli three, placed triangularly ; face tumid, slightly cari- nated ; thorax with a central raised line, and mostly with a more or less distinct one on each side, sometimes straight, at others angulated or curved ; the lateral portion deflexed, the hinder margin rounded ; e/ytra and wings generally as long as the abdomen, the latter solid, subcylindric, with its back occasionally carinated ; the apex in the male recurved, in the female with four horny moveable styles ; legs slightly pilose, the four anterior placed nearly tetragonally, and short ; t2bie all with two rows of spines; posterior legs much longer than the body, robust and formed for leaping ; tarsi with a small fleshy cushion between the claws. The insects of this genus, familiarly known by the name Grass- hoppers, are well distinguished from Podisma by having the elytra and wings nearly as long as, or longer than, the abdomen ; from Gom- phocerus their slender and simple antennze remove them ; and the form * This is one of those genera—like Amara, &c.—alluded to in the Postscript to vol. v. p. 439, which I would, if consistent with the plan of my work, have passed over temporarily, but being compelled to proceed in a given track, I must endeavour to discriminate and describe the species ; and I believe that I am correct in asserting that amongst the very numerous collections of indi- genous insects that it has fallen to my lot to examine, nof one has the species of this genus named, or even divided from each other; and, as my own specimens alone have been my guide, it is possible that some species may be omitted, or that, from the peculiarities amongst some of them in a dried state, I may have decided improperly in some instances. In reference to one remark in the Postscript above referred to, I have to observe, that my object was not to disparage the accuracy of the Monographia Apum Anglie—far from it— wy intention there being merely to show that without the authentic typical specimens being at hand, it is not always possible to determine whether other specimens in a different state of perfection are identical therewith, and which is the sense in which Mr. Shuckard intends his remarks, as quoted by me :— and, as regards the insects described in this work from my own collection, I invite a comparison with my specimens, which are open to inspection every W ednesday evening. G2 20 MANDIBULATA.—ORTHOFTERA. of the thorax, as well as the magnitude of the elytra, the greater disproportion in the size of the hinder femora, as also their more remote antennz, sessile eyes, &c. divide them from Acrydium. The indigenous species appear to be either very numerous or subject to great variations; they are very difficult to understand, but the fol- lowing seem distinct, and to facilitate their examination I have sub- divided the genus into sections, as proposed by Zettersted. A. Thorax with a single elevated line. Sp. 1. migratoria. Thorace unticé subabrupté compresso-ang ustiori, elytris flavo fuscoque nebulosis, mandibulis ceruleis. (Long. corp. 1 unc. 6—10 lin.) Gryllus migratorius. Linné.—Donovan, v. viii. pl. 270.—Lo. migratoria. Steph. Catal. 301. No. 3315. Head glossy, greenish-yellow, punctured, with four raised lines in frout between the eyes ; the two intermediate ones dusky ; mandibles pale blue, with blackish tips; thorax rather abruptly compressed, and narrowed anteriorly, the lateral lobes deflexed, subquadrate, with the angles rounded, the hinder margin produced somewhat angularly in the middle; the back with a sharp ridge, the whole of a livid greenish hue, with a brownish longitudinal line on each side; elytra clouded with pale yellowish and fuscous ; legs pale; posterior femora green or bluish beneath, with some obscure brownish clouds without, and a spot within and a belt over the apex bluish; tibie reddish, or pale. Although this insect, ‘‘the Migratory Locust,” has been taken in several parts of the country, as the vicinity of Nottingham, Packington in Warwickshire, St. James’s Park, the neighbourhood of Yarmouth, the coasts of Essex, Kent, and Suffolk, &c., it can scarcely be called indigenous, excepting inasmuch as the individuals arrive in a state of nature in this country, and are not imported ; but I believe they do not breed here. Sp. 2. stridula. Migricans, clytris nebulosis, alis in utroque sext rubris, apice nigris. (Long. corp. 10—12 lin.) Gr. stridulus. Linné.—Stewart (!)—Steph. Catal. 301. No. 3318 note. Dusky, obscure, head deeply punctured, with the sides rugged; thorax unequal and rugose, with a central ridge and a rather distinct fovea on each side in the middle of the base; elytra either black, clouded with brown, or brown spotted with black, or dusted with brownish ; wings red, with the apex broadly black; legs obscure; posterior tibie with a pale or whitish belt at the base. Stewart gives this as British, but as I have never seen an indigenous specimen, I suspect he is mistaken. LOCUSTIDE.~“LOCUST A. 21 Sp. 5. flavipes. Fusco-brunneus, thorace lined laterali utrinque margineque antico elytrorum viridi-flavis, femoribus posticis subtus sanguineis, tibiis flavis. (Long. corp. 1 unc. 4—10 lin.) Gry. flavipes. Gmelin.—Donovan, v. xi. pl. 391.—Lo. flavipes. Steph. Catal. 301. No. 3316. Fuscous brown; head with three indistinct longitudinal yellowish streaks above ; thorax tricarinated, the lateral carina slightly curved, edged with greenish-yellow within, and dusky without ; elytra fuscous, with a darker streak at the shoulder, and a bright greenish-yellow one on the costa extending to about its middle; wings yellowish at the base, and fuscous at the apex; posterior femora greenish-brown, with their under surface bright blood-red, the base within with a black streak, a cloud of the same on both sides towards the apex, and a ring near the knees ; tibie bright yellow, with a black ring at the base and apex, and a fainter one towards the base; spines bluish-black. Variable in colour, some examples being of a brilliant fleshy or purple hue when alive, and in some the latter colour is retained when dried. Although not an uncommon insect in this country, it would appear, from the silence of Charpentier, Zettersted, and other continental {Sp. 3. cerulescens. Grisea, elytris fasciis duabus et apicem versus maculis obscurioribus, alis viridi-cerulescentibus, fascia apici hyalino propriore, arcuata, nigra, in utroque sext distinctd. (Long. corp. 1 unc. 3—4 lin.) Gr. cerulescens. Linné.—Stewart (!)—Lo. cerulescens. Steph. Catal. 301. No. 3317, note. Griseous ; elytra with two transverse fascie, one occupying the base, and some spots towards the apex obscure ; wings greenish-blue at the base, the apex clear, and towards the middle a curved black fascia, in both sexes. This insect is also introduced by Stewart as indigenous, but evidently without authority. B. Thorax with three elevated lines. a. With the two outer thoracic lines nearly straight. {Sp. 4. grossa. Thorace subtricarinato, carinis lateralibus obsoletis ; virescens, elytris margine exteriore anticé, in utroque sext, flavo, femoribus posticis subtus sanguineis geniculis nigris. (Long. corp. 10—12 lin.) Gry. grossus. Linné.—Berkenhout (!)—Lo. grossa. Steph. Catal. 301, No. 3319, note. Thorax obscurely tricarinated, the lateral ridges obscure; greenish ; elytra with the costa, or outer margin, anteriorly yellow in both sexes ; hinder femora beneath blood-red, the knees black or dusky. Berkeuhout gives this as British, but I presume improperly, as I have never seen an indigenous example. 22 MANDIBULATA:—ORTHO?PTERA., entomologists respecting it, that it was peculiar to Britain: it occurs in marshy districts towards the middle of July, and is found in those about Camberwell, Deptford, &c. near Londen, and in the vicinity of Whittlesea Mere. ‘* In the fens of Cambridgeshire.”— C. C. Babington, Esq. Sp- 6. elegans. Capite valde declivi, thorace carinis tribus rectis ; mas thoracis dorso rufescente, elytris non coloratis margine antico dilatato, corpore paullo longioribus ; feemina lined atra thoracis, elytris oblongis non dilatatis corpore brevioribus, vitta alba ad marginem anticum. (Long. corp. 8—10 lin.) Gry. elegans. Charpentier Hore Ent. 153.—Lo. rubroviridatus. Steph. Catal. 302. No. 3325. Head very much deflexed; thorax with three straight elevated lines, the central one lightest and acute ; colour rosy-red, with the sides greenish, or testaceous, sometimes with a black streak accompanying the carine ; in the male the elytra are horn-colour, and dilated in front ; in the female they are oblong, green or testaceous, with a long white streak towards the margin at the base, accompanied by a broad dark one ; legs testaceous, with the hinder femora slightly greenish, and obscurely tipped with dusky. Variable in colour, and in some examples the elytra are very faintly spotted with a dusky tint. This appears to be a rare species; I found it in the marshes near Whittlesea in July 1833. Sp. 7. dorsata. horace carinis lateralibus subrectis; supra viridis, subtus lateribusque fuscis, pedibus pallidis, geniculis concoloribus. (Long. corp. 8—10 lin.) Gry. dorsatus. Zettersted Orth. Suec. 82.—Lo. dorsata. Steph. Nomen. 2d edit. Appendiz.—Lo. ochropa. Steph. Catal. 301. No. 3322. Thorax with its lateral ridges nearly straight ; head above greenish-testa- ceous, forehead considerably deflexed ; thorax rather narrowed anteriorly, smooth, fuscous, green, between the carina, and on each of the lateral lobes (during life) is a splendid golden, or greenish-gold spot ; elytra in the male rather longer than the abdomen, in the female of the same length as it, the inner or dorsal portion green, varying in tint in different individuals, the outer or costal edge dusky or brown ; legs dull testaceous, the hinder ones with the knees concolorous, and the tibie paler. Rather variable, some examples having a pale line edged with dusky at the base of the elytra; in others the elytra are pale; the thorax has sometimes a black line on each side, or the prominent colour is rosy: several of these varieties arise from the different states of maturity. This insect occurs, but not abundantly, in meadows in the vicinity of the metropolis in July. LOCUSTID.E.—-LOCUST A. Dae Sp. 8. parallela. horace carinis lateralibus subrectis ; supra lateribusque viridis, subtus flavicans, geniculis pedum posticorum nigris, elytris pallidis, unicoloratis. (Long. corp. 8—10 lin.) Gry. parallelus. Zettersted Orth. Suec. p. 85. —Steph. Nomen. 2d edit. col. 110. Thorax with the lateral ridges nearly straight; head and thorax green, the latter entirely of that tint; elytra in the male rather shorter than the abdomen, dilated and bisinuated on the costa ; in the female about half the length ; in both sexes entirely green and immaculate ; abdomen greenish- brown, with the sides occasionally spotted with black, and the lower surface pale; legs testaceous, with the hinder femora above greenish, beneath yellow, with black knees. Also found, but not commonly, within the metropolitan district. Sp. 9. montana. Thorace carinis lateralibus anticé nonnihil curvatis ; viridis subtus flavida, geniculis posticis nigris ; elytris in mare abdominis longitudine, in foemina tertia parte thorace capiteque longioribus. (Long. corp. 8—10 lin.) Gry. montanus. Charpentier Hore Ent. p. 173.—Lo. montana. Steph. Nomen. 2d edit. col. 110. Thorax with the posterior ridges very slightly curved; head rather wide, and, with the thorax, green; elytra in the male as long as the abdomen, in the female abbreviated ; in both greenish; in the former sex they are rather broad, and in both the wings are nearly as long as the elytra; beneath the body is yellowish ; legs pale testaceous, with the knees of the hinder pair black. Also slightly variable, some examples having a black streak on each side of the thorax, and others wanting it; and in some females there is a faint yellowish line at the base of the elytra. Found near Dover, but apparently not common. Sp. 10. tricarinata. Thorace carinis tribus atris valdé elevatis rectis ; rosea, elytris fuscescentibus apice nigricantibus, margine antico strigd pallida liturdque nigricante adnatd. (Long. corp. 10 lin.) Lo. tricarinata. Steph. Catal. 302. No. 3335. Head broad, acute; rosy, or flesh-colour, rest of the body the same, with the base and sides of the abdomen dusky; thorax with three strongly elevated straight black ridges, its anterior margin also black ; elytra rather shorter than the abdomen, pale fuscous, with the apex dusky; at the base, near the costa, is a long slender whitish streak, adjoining to which on the disc is a broader blackish one ; legs entirely flesh-colour, immaculate. This very distinct insect is apparently very rare: I have one specimen which I caught near London, but I forget its exact locality. 24 MANDIBULATA.—ORTHOPTERA. b. With the lateral carine on the thorax more or less curved or angulated. 1. Legs glabrous, or naked. Sp. 11. viridula. Thoracis carinis lateralibus anticé curvatis ; supra viridis, subtus flavicans, elytris fuscis in medio obscuro-maculatis, margine postico pallido aut viridi, in maribus ad apicem late nigricantibus. (Long. corp. §—13 lin.) Gr. viridulus. Linné.—Sowerby Brit. Misc. i. pl. 63.—Lo. viridula. Steph. Catal. 301. No. 3320. Thorax with its lateral ridges curved anteriorly, and converging towards the head, the latter large, with the face slightly deflexed and protuberant, and of a dullish-green; thorax the same, brighter on the back, the ridges generally pale, and frequently accompanied by a bright deep black streak within ; elytra rather longer than the abdomen, of a horn-colour, and nearly pellucid, in the middle are some dusky clouds, and a small white spot towards the apex, the latter fuscous or dusky, and the inner margin pale or greenish ; abdomen fuscous, reddish at the apex ; posterior femora greenish- red, with a black streak within at the base, and dark knees; tibia reddish. Female rather larger, with shorter antenne, of a brighter green, with the thorax more spotted with black; the elytra narrow, with the posterior margin of a bright green, the apex pellucid. Both sexes vary a little in colour and slightly in their markings. One of the most common species of this order, frequenting meadows, fields, grassy places, and hills, &c. in June and July, throughout the metropolitan district, and near Dover, the New Forest, &c. Sp. 12. rubicunda. Thoracis carinis lateralibus curvatis, anticé valdé appro= pinguantibus, capite thorace et margine postico elytrorum viridibus, elytris posticé lunuld obliqua albidé, abdominis apice pedibusque rufescentibus. (Long. corp. 9—11 lin.) Gr. rubicundus. Scheffer.—Lo. rubicunda. Steph. Catal. 302. No. 3332. Thorax with its lateral carine much curved, and very closely approximating anteriorly ; head, thorax, and hinder part of the elytra green; the latter with a whitish lunule towards the apex on the disc; abdomen at the apex above and the legs reddish. Found in the vicinity of the metropolis; also at Dover, in July. Sp. 13. aprica. Thoracis carinis lateralibus subcurvatis ; viridi-rosea, elytris maris fuscescentibus immaculatis, ad apicem saturatioribus, feemine dilutioribus striga pallida ad basin coste, antennis in utroque sextt brevibus. (Long. corp. 7—9 lin.) Lo. aprica. Steph. Catal. 301. No. 3321. LOCUSTID.£.—LOCUSTA. 25 Thorax with its lateral carine slightly curved in front, and accompanied by a black line, which sometimes extends to the base, at others is obliterated towards that part; prevailing colour rosy-green, elytra of the male brownish, with the apex darker, the disc immaculate ; female much paler, with a slender straight line towards the base of the costa; legs pale greenish- red, with concolorous knees ; antenne in both sexes short, somewhat com- pressed in the males. Not common: found in July within the metropolitan district. Sp. 14. rufipes. Thoracis carinis lateralibus curvatis ; fusca, thoracis vitta media longitudinali testaced, elytris posticé rufescentibus, macula alba et plurimis fuscis, ventre anoque sanguineis, pedibus posticis testaceis, geniculis atris. (Long. corp. 9—11 lin.) Gry. rufipes. Zetterstedt Orth. Suec. 90.—Lo. rosea. Steph. Catal. 302. "0. 3328. Thorax with its lateral ridges curved, but less so than in the preceding species; fuscous; thorax with a longitudinal testaceous streak on the back, and a black line on each side; elytra narrow, fuscous, with the apex somewhat pellucid, the disc with numerous fuscous dots placed in a line, and a distinct white spot placed obliquely ; abdomen with the sides and some dorsal spots black, the lower part and apex fine red ; posterior legs testaceous, with black knees. Female larger, and of a fulvescent or rosy tint. Found not commonly in the vicinity of the metropolis in June and July, frequenting fields and meadows. Sp. 15. vittata. Thoracis carinis lateralibus angulato-curvatis, corporis lateribus pedibusque ferrugineo-luteis, fusco subirroratis, elytris et superiore corporis parte atris. (Long. corp. 10—12 lin.) Gry. bicolor. Charpentier Hore Ent. p. 161.—Lo. vittata. Steph. Catal. 302. Vo. 3327. Thorax somewhat tetragonal, luteous, black above, with a slight dorsal ridge, and on each side a faintly angulated curved one, head luteous, with the crown black ; antenne fyscous, with the base yellowish ; elytra oblong, narrow, very slightly dilated anteriorly in the male, of a dusky or smoky tint, with a more transparent space towards the apex of the disc, on which are occasionally some obscure fuscous clouds; legs luteous, spotted with fuscous ; posterior femora with a dusky streak on the outer disc, the inner variegated with fuscous, the lower yellowish; posterior tibie reddish or greenish. Inhabits fields and hedges in June within the metropolitan district. 2. Legs pilose. Sp. 16. miniata. Thorace carinato, abdomine miniaceo, punctis dorsalibus Manopisutara, Vou. VI., May 31st, 1835. D 26 MANDIBULATA.—ORTHOFTERA. geminatis nigris, subtus basi virescente, elytris fuliginosis, obscuro-maculatis, maculaque subobliqua alba, alis fuliginosis striga parva ad costam. (Long. corp. 1 unc. 4 lin.) Gry]. miniatus. Charpentier Hore Ent.p. 162.—Geo. miniata. Steph. Nomen. 2d edit. Appendix. Head reddish, mouth pale, antenne extending to the back of the thorax, red, with the apex fuscous ; thorax red-brown, with three ridges, the two outer ones acutely angled towards the head, and accompanied by a black streak and two transverse sulci; abdomen fine red, with a row of six pair of black dots down the back, the base greenish beneath; Jegs reddish ; posterior femora and tibie brighter, with the apex of the last fuscous; elytra dull smoky-brown, with some obscure darker spots, and a whitish somewhat obliquely placed dot towards the apex; in the female they are slightly greenish within and are shorter; wings rounded, broad and smoky, with an oblong black streak at the base of the costa. I obtained this insect from the Marshamian collection, and know not its locality. Sp. 17. lineata. Viridis aut fusca, lined thoracis utrinque curvata valde elevata rosea, tatiorem rectam nigram secante, elytris maris fuscis, feminis margine antico strigd albida signato, in utroque sext versus apicem lineola obliqué albida, pedibus rufis. (Long. corp. 1 unc. 2—4 lin.) Gr. lineatus. Panzer.—Lo. lineata. Steph. Catal. 302. No. 3323. Head large, glabrous, fine green or fuscous; vertex somewhat conical, with a curved rosy line extending from the eyes to the base of the thorax, accom- panied by a considerably raised ridge, and a broadish deep black streak ; on the thorax are also two transverse impressions, and the sides are variegated with testaceous and brown; abdomen reddish above, greenish beneath; elytra fuscescent in the males, with the anterior margin dilated ; greenish in the female, with a white streak at the base of the costa, and in both sexes a somewhat crescent-shaped whitish spot towards the apex; posterior femora reddish, with an obscure streak on both sides at the base; knees black ; tibiz red, with black-tipped spines. Not common: found in fields and meadows in the vicinity of London. Sp. 18. biguttula. Thoracis carinis lateralibus angulatis ; fusca, thorace linea utrinque atra, elytris griseis maculis obscurioribus lineolaque obliqua versus apicem albidd. (Long. corp. 10—14 lin.) Gry. biguttulus. Linné.—Lo. crucigera. Steph. Catal. 302. No. 3329. Head attenuated in the males, rather convex in the females, either dirty- brown, with brighter spots, or pale, with fuscous ; thorax with its lateral ridges distinctly, but obtusely, angulated, entirely brown, or dull testaceous, LOCUSTID.£.—LOCUSTA. 27 with a longitudinal black streak on each side, not touching the base, and another towards the base ; elytra of the males pale griseous, with fuscous nervures and a few obscure darker spots, the inner margin sometimes faintly greenish or reddish ; in the females the same, but the spots more distinct, and occasionally with a slender longitudinal whitish streak at the base of the costa, and an oblique whitish spot near the apex ; abdomen dull testa- ceous, yellowish-green beneath, the sides spotted with black; legs dull testaceous, spotted with fuscous. Variable: some examples have the carine on the thorax whitish, giving the appearance of a cross ; others—females—have the basal inner portion of the elytra green, rosy or blood-red ; the body (and the back of the thorax) also varies, of similar colours. Extremely abundant throughout the metropolitan district, in grassy fields and meadows ; also on the borders of woods, hedges, or banks, &c., at the end of June and in July. Sp. 19. mollis. Thoracis carinis lateralibus sinuato-curvatis ; virescens vel gilva, elytris maculis fuscis et apicali alba obliqua. (Long. corp. 8—10 lin.) Gry. mollis. Charpentier Hore Ent. 164.—Lo. consobrina. Steph. Catal. 301. Wo. 3330. Thorax with its lateral carine with a waved, but not angulated, curve ; colour generally of a fine green, with a yellowish tinge, the hinder portion of the elytra of a reddish tinge, rarely greenish ; on their disc is an interrupted row of fuscous spots, and a larger whitish one placed obliquely ; in the males they are slightly dilated, and the apex is considerably attenuated ; legs dull testaceous, clouded with dusky. Not uncommon within the metropolitan district in June, fre- quenting meadows, &c. Sp. 20. hemorrhoidalis. Thoracis carinis lateralibus antice angulatis ; fusca, elytris fusco alboque maculatis, margine postico albo, aut viridi, abdominis ultima parte (presertim maris) coccined. (Long. corp. 8—11 lin.) Gr. hemorrhoidalis. Charpentier Hore Ent. p. 165.—Lo. obscura. Steph. Catal. 302. No. 3334. Thorax with its lateral carine angulated anteriorly ; fuscous; head in the males considerably deflexed ; thorax red-brown, sometimes green, with a black streak on each side accompanying the carine ; elytra narrow, scarcely longer than the abdomen, with several dusky spots alternating with pale ones, placed in the middle ; the hinder margin is clearer, and of a whitish or green hue, tinted with bluish ; in the females the markings are stronger, and the hinder portion is generally of a more or less brilliant white, rarely greenish ; this sex has sometimes a broad whitish streak on the head and. thorax, extending backwards, to the apex of the elytra, when they are p2 28 MANDIBULATA.—ORTHOPTERA. closed; abdomen black at the base and sides, yellowish beneath, the remainder fine red, with indistinct geminated black dots on the back ; legs red-brown ; posterior femora with some largish black clouds within ; the knees also black ; tibie reddish, with the spines and a belt at the base black. Also found in the vicinity of the metropolis and near Dover, in June and July. Sp. 21. rhomboidea. Thorace cruciato, carinis lateralibus antic? valdé angulatis ; fusca, elytris cinereis ad apicem pallidioribus, disco seriebus duabus macularum JSuscarum, pedibus rufescentibus nebulis fuscis. (Long. corp. 8—11 lin.) Gr. rhomboideus. Scheffer—tLo. rhomboidea. Steph. Catal. 302. No. 3324. Fuscous ; thorax cruciated, the lateral carine considerably angulated towards the head and greatly approximating ; elytra ashy, or brownish, paler towards the apex and the inner margin, with two distinct rows of fuscous spots, one towards the costa, the other on the edge of the back, when the elytra are closed, and the last one of a rhombic form, and most distinct in the female ; legs reddish, with fuscous clouds. Common within the metropolitan district in July, frequenting the borders of woods, hedges, banks, &c. ‘‘ Caernarvon.”—C. C. Ba- bington, Esq. Sp. 22. varipes. Thoracis carinis lateralibus subangulato-curvatis ; rufo-fusca, thoracis dorso elytrisque nigricantibus, his maculd obsoletissima pallida, pedibus rufo fuscescentibus nebulis nigricantibus. (Long.corp. 8—10 lin.) Lo. varipes. Steph. Catal. 302. No. 3326 and 3331.—Lo. variegata. Steph. Nomen. 2d edit. col. 109 9. Thorax with its lateral carine somewhat angularly bent ; red-brown; with the back of the thorax and the elytra in both sexes deep dusky-brown, the latter with a faint palish spot on the disc towards the apex ; legs reddish- brown, with dusky shades. Less abundant than the last; found within the metropolitan district in June and July. Sp- 23. venosus. Thoracis carinis lateralibus subangulatis ; rufo-fusca, thoracis dorso posticé nigricante, elytris fuscescentibus basi saturatioribus, immaculatis, stigmata fusco excepto, nervis rufescentibus. (Long. corp. 10—12 lin.) Gr. venosus. Linné?—Lo. venosa. Steph. Catal. 302. No. 3333. Thorax with the lateral carine somewhat angled towards the middle; red- brown, with the back of the thorax behind dusky or blackish; elytra brownish, transparent, darkest at the base, which has sometimes two fuscous streaks, the disc immaculate, the costa with a dark stigma towards LOCUSTID®.—PODISMA.—GOMPHOCERUS., 29 the apex, nervures reddish; legs reddish-brown, slightly varied with fuscous. Also found, but not commonly, within the metropolitan district, in July, and likewise in Yorkshire. Genus VIII.—PODISMA, Latreille. Antenne filiform, consisting of numerous, cylindric, slightly distinct articu- lations; head obtuse ; eyes moderate ; ocelli three ; thorax carinated, the hinder margin rounded, the sides considerably deflexed ; elytra very short, or almost wanting’; wings also small, and inadequate for flight ; abdomen solid, acuminated behind ; legs moderate ; posterior much longer than the body, their femora robust, and formed for leaping ; tzbie long, spinous ; tarsi with a minute fleshy cushion between the claws. This genus differs chiefly from Locusta by having the elytra and wings so extremely short as to be totally useless for assisting the animal in flight; the form of the thorax is also slightly different, the lateral carinze being very faint; the msects also are more robust in proportion than the Locuste, and the antennz are more attenuated, and the body is glabrous, &c. Sp. 1. pedestris. Corpore livido incarnato, ventre flavicante, femoribus posticis subtus sanguineis, tibiis cerulescentibus annulo albido. (Long. corp. 10— 12 lin.) Gry. pedestris. Linné ?—Lo. pedestus. Steph. Catal. 302. No. 3336. Of a livid flesh-colour, changing to a dirty hue after death ; head with a small black streak behind the eyes; thorax slightly narrowed in front, with a distinct dorsal carina and two obsolete lateral ones, accompanied by a black line ; the back of the thorax is inclined to brown and the sides to testaceous ; abdomen somewhat brownish, with the edges of the segments in the male, and the under portion in both sexes yellow; legs testaceous-brown, with the hinder femora red beneath, and their tibie bluish, with a pale ring and pale spines, the apex of the latter brownish. Scarce, but found occasionally at the end of July within the me- tropolitan district. Genus IX. GOMPHOCERUS, Leach. Antenne rather long, slender at the base, consisting of numerous indistinct articulations, the apex more or less dilated, and, in the typical species, forming a spoon-shaped cavity ; head rather attenuated, and with a shallow groove in front; eyes ovate, rather large; ocelli three ; thorax elongate, 30 MANDIBULATA.—ORTHOPTERA. truncate in front, rounded behind, tricarinated, the lateral carine more or less angulated, the sides considerably and suddenly deflexed ; elytra and wings ample, the former with the costa dilated in the males; abdomen solid, attenuated to the apex; legs moderate; posterior considerably elongated, their femora robust, compressed and formed for leaping ; tibie slender, spinose; ¢ars¢ with a small cushion between the claws. The elongate clavate antennz of the insects of this genus at once point out their distinction from the other genera of this family, espe- cially in the typical species, in which their apex is very considerably expanded and is hollowed out in form of a spoon, with a slight acute point at the end: in the other species this character is less apparent, but abundantly distinct from Locusta and Podisma; and from Acrydium also, from which its elongate elytra and short thorax—rounded behind—remove it: the species are rather of small size, and appear to frequent dry and sandy heaths. Sp. 1. rufus. Piare xxvill. f. 6.—Thorace cruciato, corpore brunneo-griseo, elytris griseis, abdomine subtus virescente-flavo, femoribus posticis subtus tibtisque rufis. (ong. corp. 11—14 lin.) Gry. rufus. Linné.— Donovan, v. xvi. pl. 482.—Go. Sowerbii. Steph. Catal. 302. No. 3337. Above griseous-brown, sometimes varied with yellowish ; head beneath yel- lowish ; thorax with a black streak on each side; elytra in the male longer than the abdomen, dilated beyond the middle, immaculate, fuscous, but paler and more transparent on the hinder portion of the dilated costa; in the females nearly as long as the abdomen, and with a few dusky spots towards the hinder margin; abdomen beneath yellowish, above dusky at the base ; legs reddish; anterior tibie yellowish ; posterior red ; posterior femora reddish-brown, red beneath, the base within with a dusky streak ; antenne longer in the male than im the female, the apex expanded and spoon-shaped, dusky, with the extreme tip, which is acute, white. Slightly variable: in some examples the thorax has a white streak on each side within the black one. Rather a local insect; found occasionally in abundance in the fields near the Red House, Battersea, in July and August. Sp. 2. biguttatus. horace cruciato ; rufescente-fuscus, albido maculatus, ano rufo, elytris griseis serie longitudinali macularum fuscarum, lineoldque versus apicem albis. (ong. corp. 6—10 lin.) Gryl. biguttatus. Charpentier Hore Ent. p. 166.—Gom. biguttulus. Steph. Catal. 302. No. 3339.—Gyl. biguttulus. Donovan, v. iii. pl. 79. f. 2. Red-brown, spotted with whitish ; head with a black line behind the eyes ; thorax with the lateral carine strongly angulated, and whitish, with a black LOCUSTID£.—GOMPHOCERUS. ol line on each side; elytra griseous, with a longitudinal row of quadrate fuscous spots, interrupted towards the apex with a distinct white one; abdomen with the sides and base above black, the apex red; legs testa- ceous ; posterior femora of a duller hue, with brownish spots, beneath greenish-yellow ; knees black ; tibie red, with the extreme apex fuscous. Variable: in some examples there is a broad straight yellow streak extending from the crown to the base of the elytra; in others there is a similar mark, accompanied by two other paler ones, along the ridge of the elytra; again in some, the posterior femora are immaculate. An extremely abundant insect on dry and sandy heaths throughout the metropolitan district, in July and August. ‘* Carnarvon and Cambridge.”—C. C. Babington, Esq. | Sp. 3. elegans. horace cruciato ; atro-fuscus, albo maculatus, ano lutescente, elytris pallide griseis, seriebus duabus longitudinalibus macularum fusearum, lineolaque versus apicem alba, femoribus postisis albo fusciatis. (Long. corp. 10—12 lin.) Go. elegans. Steph. Catal. 302. No. 3338.—Gr. rufus, var. guttatus. Zetterstedt Orth. Suec. 101? Deep-brown, spotted with white; thorax with the lateral carine acutely angulated, and whitish, with a clear white dot at the base of each, with a black spot adjoining, and a second within the angle on each side; elytra pale griseous, with two rows of large quadrate deep fuscous spots on each, one in the middle of the disc, interrupted by a white dot, the other towards the suture, and, when the elytra are closed, placed on the back ; anterior legs dull testaceous, with brown clouds ; posterior femora dull testaceous, with yellowish and fuscous clouds without, and two white fascie towards the apex within; tibie yellowish-white, with the apex brownish. Apparently a scarce species: it occurs on Ripley and Cobham Heaths in July. Sp. 4. ericetarius. Thorace cruciato ; rufescens, ano pallidiore, thorace utrinque vitté nigra, elytris pallidis serie longitudinali macularum fuscarum, tibiis fer- rugineis, apice fuscescentibus. (Long. corp. 6—9 lin.) Go. ericetarius. Leach MS.—Gom. ericetarius. Steph. Catal. 302. No. 3342. Reddish, or flesh-colour ; thorax with the lateral carine strongly angled, pale, with an adjoining black streak on each side; elytra pale, with a single central longitudinal row of indistinct fuscous spots ; abdomen dusky, with the apex pale; legs testaceous ; hinder femora dusky, with brown clouds ; tibie ferruginous, with the extreme apex brownish. Also found on heaths like its congeners, and not uncommon in the vicinity of the metropolis in July. 32 MANDIBULATA.—ORTHOPTERA. Sp. 5. calidoniensis. Thorace cruciato, rufescens, ano pallido ; abdomine supra nigro, elytris griseo-fuscis immaculatis ; geniculis posticis fuscis. (Long. corp. 7—8 lin.) Gen. calidoniensis. Leach MS.—Steph. Catal. 302. No. 3341. Reddish ; thorax immaculate, with the lateral carine considerably angulated and palish; elytra griseous-brown, immaculate, with two faint palish clouds on the disc ; abdomen black above, with the apex reddish ; legs pale testaceous, the hinder femora with some dusky clouds, and the knees also dusky ; tibie testaceous. Taken in the island of Iona, and in other parts of Scotland, by Dr. Leach, in July. Sp. 6. apricarius. Thorace tricarinato, carinis lateralibus angulatis ; viridi- fuscus, thorace utrinque lined atra, elytris pallidis, in mare immaculatis, in femina maculis fuscis, antennis thorace duplo longioribus, subcompressis. (Long. corp. 8—10 lin.) Gryll. apricarius. Zetterstedt Orth. Suec. p. 91.—Go. apricarius. Steph. Nomen. 2d edit. col. 110. Thorax tricarinated, the lateral carine angulated ; of a greenish-brown, with a black streak on each side of the thorax; elytra pale, immaculate in the male, and spotted with brown in the female; legs testaceous-brown, with the knees concolorous ; posterior tibie pale; the hinder femora with an oblique distinct black line ; antenne rather long and somewhat compressed ; fuscous, with the base testaceous. Rare in England: inhabits the metropolitan district in the autumn. +Sp.7. sibiricus. Thorace gibboso ; griseo-nebulosus, elytris hyalinis, femoribus posticis griseo nigroque maculatis, subtus flavis; tibiis anticis in maribus ovato-clavatis, crassis. (Long. corp. 83—10 lin.) Gryll. sibiricus. Linné.—Go. sibiricus. Steph. Catul. 302. No. 3343. Obscure griseous-brown, slightly clouded; thorax gibbous, faintly carinated ; elytra hyaline ; posterior femora spotted with griseous and black, yellow beneath ; anterior tibie in the male ovate-clavate, thickened, simple in the female. This singular insect is in Mr. Hope’s rich collection : taken on the hills near Netley. Genus X.—ACRYDIUM, Fabricius. Antenne filiform, short, somewhat approximating, inserted beneath the eyes, consisting of about fourteen or sixteen articulations ; head acuminated in — LOCUSTID.E.—ACRYDIUM. 33 front; eyes globose, slightly prominent; ocelli three; mouth placed in a hollow in front of the sternum ; forehead with a grooved keel ; thorax cari- nated, its hinder margin produced to, or beyond, the extremity of the abdo- men, and terminating in a point; elytra extremely short, appearing distorted, and resembling oval scales ; wings sometimes ample, at others rudimentary ; abdomen solid, conical, without an exserted ovipositor ; legs glabrous, anterior short, posterior longer than the body, with the femora robust, and formed for leaping ; ¢2bz@ spinulose, anterior with some spines at the apex only ; ¢arsi without a cushion between the claws. The Acrydia are well known by their elongated prothorax, which in one of the species extends backwards beyond the apex of the abdomen, and in the others reaches almost to its extremity ; exclu- sively of this prominent character, however, they may be distinguished with facility by their minute elytra, and by the absence of the pulvilli, or foot-cushions, between the claws; their wings consist of many longitudinal folds, and their costal edge is broadly coriaceous. As to the number of species which are indigenous I am utterly at a loss to define them, as far too much uncertainty exists upon that point : prior to the appearance of my Catalogue it was supposed that there were four species found in Britain, but in the Catalogue I was induced to sink two and add one, thereby leaving only three; since that time Mr. Curtis has published on the genus, and thinks there may be four species—one new; but, long anterior to the publication of my Catalogue, Zetterstedt, in his Orthoptera Suecica (1821) —a work I have only recently seen—described as different no less than eighteen, all of which I possess; which Charpentier, in his Hore Entomologica (1825) reduces to two, considering Zetterstedt’s first six species as one, and the other twelve as another. More recently, Serville (in 1831) has made about eight species, corre- sponding with specimens found in this country. In the face, there- fore, of such conflicting opinions amongst authors who have expressly devoted themselves to the study of the Orthoptera, viz. Zetterstedt, Charpentier, and Serville, it would be ridiculous for me to attempt the solution of the question, especially as I have scarcely attended to the peculiarities of the genus beyond the occasional capture of some of the more conspicuous varieties: I shall, therefore, merely intro- duce as species those given in the second edition of my Nomenclature, adding, from Zetterstedt, brief characters of the assumed varieties, so far as I possess them. Manovisutata, Vou. VI., 3lsr May, 1835. ¥ 34 MANDIBULATA.—ORTHOPTERA. A. Thorax with the keel slightly elevated, the produced hinder portion extending beyond the abdomen ; wings ample; stature narrow. Sp. 1. subulatum. Obscure testaceo-fuscum, tibiis pallidis fusco-maculatis, corpore angustato, prothorace posticé producta ultra apicem abdominis. (Long. corp. 4—8 lin.) ; Gryl. subulatus. Zinné.—Ac. subulatum. Steph. Catal. 302. No. 3344.— Curtis, v. x. pl. 439. Dull testaceous-brown, minutely shagreened ; body slender, thorax produced behind beyond the apex of the abdomen, rather abruptly narrowed at the base, and somewhat linear behind ; tibie pale, spotted with brown; wings ample. Var. B. Ac. pallescens. Zett. O. S. 109.—Ac. bipunctatum. Panzer, v. f. 18. Tet. Panzeri. Serville Lncl. v. x. p. 599. No. 2.—Fuscous, with the base of the antenne, the crown and the back of the thorax, nearly entirely dull ochreous ; on the latter beneath the angle of the shoulders is a somewhat lunate-triangular black spot ; posterior femora testaceous. Var. y. Ac. marginatum. Zet¢. O. S. 110.—Griseous-brown, with the base of the antenne, the lateral ridges of the thorax, and a longitudinal streak on the hinder femora without, yellow. Var. 6. Ac. humerale. Zett. O. S. 111.—Fuscous or griseous ; thorax in the middle with a large transverse whitish blotch, and a black triangular spot on each side beneath the shoulders ; posterior femora with a testaceous band. Var. «. Ac. dorsata. Zett. O. §. 112.—Dull-brown, with a broad whitish- yellow streak on the central keel of the thorax, and on each side an abbre- viated waved longitudinal black line. Var. ¢. Ac. bimaculatum. Zett. O. S. 114.—Brown ; thorax with an oblique yellow patch on the angle of the shoulder, and terminated beneath by a somewhat triangular black spot. _In addition to these, various intermediate varieties occur both in colour and markings. Not uncommon from the early spring till towards the end of autumn In certain situations; frequent in Battersea fields ; also at Ripley, Hertford, Darenth and Coombe woods, the vicinity of Whittlesea Mere, the New Forest, &c. B. Thorax with its dorsal keel considerably elevated ; its produced hinder portion not so long as the abdomen: wings moderate or abbreviated ; stature robust. Sp. 2. bipunctatum. Corpus robustum, rufescenti-testaceum aut fuscum, sepé variegatum, thorace in medio utrinque macula obliqua nigra; alis elongatis. (Long. corp. 33—6 lin.) LOCUSTIDE.—ACRYDIUM. 35 Gryl. bipunctatus. ZLnné.—Ac. bipunctatum. Steph. Catal. 303. No. 3345. Wings ample, as long as the produced apex of the thorax; body robust, generally reddish-testaceous or brown, and occasionally variegated with griseous or ochreous; thorax with two more or less distinct black spots, placed obliquely a little behind the shoulders; legs reddish-testaceous, or griseous, a little clouded with brown sccasionally. No two examples are found precisely alike: the following varieties have been described as distinct by Zetterstedt and others :— Var. 6. Ac. laterale. Zetter. O. S. 118.—Fuscous, with the head dusky, thorax reddish, the deflexed lateral lobes yellow, the back on both sides with an oblique black spot. Var. y. Ac. ephippium. Zetter. O. S. 118.—Reddish, the thorax with a broad ochreous humeral fascia, terminated in front by a small streak-like spot, and behind by two ordinary black spots. Var. 6. Ac. binotatum. Zetter. O. S. 119.—Variegated with ashy and brown, the elevated keel on the thorax testaceous, with a white patch on both sides, terminated anteriorly and posteriorly as in var. y. Var. «. \c. cristatum. Zetter. O. S. 120.—Griseous-brown, with the carine on the front and vertex, and the central one of the thorax yellow; the thorax spotted as usual. Var. ¢. Ac. vittatum. Zetter. O. S. 121.—Fuscous, variegated with griseous, the crown and central thoracic keel yellow, the disc of the thorax with an abbreviated waved longitudinal black line, on each side. Var. n. Ac. zonatum. Zetter. O. S. 124.—Dusky-black, with a broad waved white band on the thorax, in which are two very obscure dusky spots, and a flexuous fascia on the outer edge of the femora whitish. Var. 9. Ac.ohscurum. Zetter. O. S. 125.—Brown, or dusky-black ; thorax, on both sides, with an oblique black spot, with a triangular white one towards the head ; the hinder femora with a pale streak without. Var. +. Ac. ochraceum. Zetter. O. S. 124.—Fuscous, with the legs variegated with testaceous; above ochreous ; the thorax with the deflexed lobes brown or pitchy, the disc on each side with a lateral triangular black spot. Var. x. Ac. hieroglyphicum. Zetter. O. S. 125.—Fuscous, spotted with testaceous ; thorax with four rather distinct black ziczac streaks and dots, placed irregularly ; the deflexed lateral lobes with the apex testaceous. Var. X. Ac. scriptum. Zedter. O. S. 126.—Fuscous or ashy; back of the thorax on each side anteriorly with a black incurved crescent-like line, and behind this the ordinary spot, having a slight tooth behind, and thus becoming bifid ; on the hinder portion are some brown streaks and spots disposed somewhat in lines. 19) De 36 MANDIBULATA.—ORTHOPTERA. Var. p. Ac. variegatum. Zetter: O. S. 127.—Variegated with ashy, fuscous, and black; thorax as in var. a; the hinder femora with a whitish fascia on the outer edge. Numerous intermediate varieties occur; and I suspect that Ac. nigricans is referrible to this species. Frequents nearly the same places as the preceding species, and during the entire summer, appearing towards the end of spring, and continuing till the autumn. Sp. 3. nigricans. Corpus subrobustum ; atrum vel fuscum, sepe variegatum, thorace utrinque macula triangulart atra; alis abbreviatis. (Long. corp. 4—6 lin.) Ac. nigricans. Sowerby B. M. v. i. pl. 74.—Ac. brevipenne. Steph. Catal. 303. No. 3346. Body somewhat robust ; deep black or dusky, sometimes variegated ; thorax behind slightly exceeding the abdomen in length, with a more or less distinct triangular black spot on each side behind the middle ; wings abbre- viated. Almost all the varieties described under Ac. bipunctatum occur in this species, which appears chiefly to differ by having the thorax longer, and the wings shorter and very small. Taken at Hertford, Ripley, in Battersea fields, Hants, &c., throughout the summer. Famity [1i.—ACHETID ‘4, Leach. Tarsi three-jointed ; antenne elongate, setaceous ; head large ; crown convex; eyes ovate ; ocelli two or three; thorax truncate in front, and receiving the head, which is inserted nearly to the eyes; elytra horizontally incumbent, with the sides suddenly deflexed, with an acute ridge at the angle, the disc veined, and dissimilar in the sexes ; body elongate ; breast without laminated appendages ; wings considerably folded longitudinally, and terminating in a kind of subulated tail ; abdomen cylindric, with two exarticulate, setaceous, elongate, villose processes, or styles; /egs rather stout, especially the posterior, and their femora ; the hinder ¢zbie spinose, robust ; ¢arsz without foot cushions between the claws. This is a limited family, and embraces only three indigenous genera, which are no less remarkable from their aspect and habit than from the singularity of their form and manners, as more parti- cularly detailed under their respective genera: from the Locustide (which have three-joited tarsi) their elongate setaceous antenne, ACHETIDE.—GRYLLOTALPA. 37 exclusively of their robust bodies, their horizontally incumbent elytra, elongate subulate wings, semicylindric thorax——which is destitute of carize—elongate caudal appendages to the abdomen, &c. manifestly remove them, in addition to their habits. In some instances the females have an exserted ovipositor, and in all cases the elytra differ in the sexes. The indigenous species are divisible into the following genera, which may be thus hastily distinguished :— Pedes antici dilatati; thorax ovatus: 6 : 5 C - Jl. GRYLLOTALPA. simplices, haud dilatati 5 Thorax transversus; antenne remote: . 0 ; - 12. ACHETA. elongato-quadratus ; antenne appropinquantes: . 13. ASCANTHUS. Grnus XI.—GRYLLOTALPA, Ray. Anienne inserted before the eyes, shorter than the body, setaceous, consisting of upwards of sixty indistinct articulations ; head somewhat conic, nutant ; eyes exserted, small ; ocelli two, minute; thorax subovate and somewhat cylindric ; elytra abbreviated, partially incumbent on each other, with the humeral portion deflexed, veined ; areolets dissimilar in the sexes; wings ample ; abdomen robust, flat below, furnished at its apex, in both sexes, with a setaceous pilose process on each side; the female without an exserted ovipositor ; legs stout, compressed, anterior formed for digging, their femora beneath with a sharp compressed tooth at the base, and the tibie palmate, the apex divided vertically into robust teeth ;* the ¢arsz compressed and trigonate, inserted on the side of the tibia ; intermediate legs moderate ; posterior with rather long and thickened femora, and the four hinder ¢ibie short and armed with spines towards the apex. The insects of this singular genus, known by the name of “ Mole- erickets,” may be instantly recognized by their extraordinary palmated anterior legs, which do not unaptly represent the fore-feet of the animal whence their peculiar appellation is derived: they are amongst the largest of the indigenous insects; they subsist on the roots of plants, and are said to be very destructive in some gardens: the female deposits her eggs in a large oval cell, to the amount of * Mr. Curtis says four, but that is a specific difference, not a generic cha- racter ; inasmuch as Gryll. didactyla (a South American species), which is sometimes improperly placed in English collections, is furnished with two teeth only at the apex of the tibie. oo MANDIBULATA.—ORTHOPTERA. 300: they are round, and of a shining yellowish-brown, and are excluded in about three or four weeks. The sexes, as pointed out by Zetterstedt in his Orthoptera Succica in 1821, differ in the neuration of the elytra, as do the other genera of the family to which the mole-crickets appertain: they rarely fly, and the male makes a not unpleasant chirping sound by the friction of its elytra: they burrow with great rapidity by means of their strong anterior legs. Sp. 1. vulgaris. Tomentosa, supra fusca, subtus ferrugineo-flavescens, tibiis anticis quadridentatis, alis elytris duplo longioribus. (Long. corp. 1 unc. 10 lin.—2 une. 3 lin.) Gry. gryllotalpa. Lnné.—Gryllot. vulgaris. Steph. Catal. 303. No. 3347.— Curtis, v. x. pl. 456: an elegant figure. Above brown, beneath testaceous, or rusty-yellowish, entirely clothed with a fine velvety pile: margins of thorax fulvous ; elytra dull whitish-yellow, or ashy, with the costa and base brownish, and the nervures dark likewise ; wings whitish, slightly iridescent, with the costa, a longitudinal streak through the disc, and the anterior nervures, brown; anterior tibie furnished exteriorly with four teeth ; of a pitchy hue, the tibie themselves being of a chestnut hue. The sexes, as stated by Zetterstedt in 1821, differ in the neuration of the elytra, the disc in the male being more closely reticulated with nervures, and during repose, in this sex, the right elytron laps over the left. This insect is not very abundant, but still cannot ke considered rare, at least in the south of England; it frequents meadows, fields, boggy places, the rich mould of garden grounds, &c.: the female, towards the beginning of May, forms her cell about six inches beneath the surface, in which she deposits her eggs, and the young are hatched in less than a month, and do not assume their final state till about the end of the succeeding May: they occur in many places within the metropolitan district, and I have taken them near Ripley ; they are also found in Devonshire and Cornwall: it has been supposed to be the cause of the ‘“ Will o’ the wisp,” but I think erroneously, as those specimens that I have kept alive have shown no appearances of phosphorescence; and the effects of electro- chemical phenomena are amply sufficient to account for the one in question, which, like many other natural events, appears to have been enveloped in mystery, from the proneness of mankind to hazard theoretical opinions. ACHETIDE.—ACHETA. 39 Genus XII.—ACHETA, Fabricius. Antenne inserted close to the eyes, remote at their base, consisting of upwards of 100 articulations, and longer than the body; head large, rounded, somewhat transverse ; eyes lateral, slightly exserted ; ocelli three, rather obsolete ; thorax transverse-quadrate, flat above; elytra flat, hori- zontally incumbent, irregularly veined in the males, and abruptly inflexed towards the humeral angle; wings ampie, or wanting; abdomen rather stout and short, its apex with two slender elongate pilose styles, and in the female with a long porrected ovipositor; anterior /egs short and simple ; posterior nearly as long as the body, with their femora thickened, the knees swollen, and the ¢ibie, with a double row of moveable spines. Unlike the Gryllotalpz, these insects have the anterior legs very slender, and not materially dissimilar to the second pair; but the hinder pair are elongated, and have incrassated femora, as in the Locustee: the head is very broad, and the antennze are remote at their origin; the thorax is short and transverse; the females have a long exserted ovipositor: the eggs are deposited either in a cell under the surface of the earth, or in holes in old kitchen walls; in con- structing which they are assisted by their powerful jaws: the eggs are hatched in about a fortnight or three weeks, and the imago (at least in the domestic species) appears in about three or four months: all the species are remarkable for their loud chirping noise. Sp. 1. campestris. Niger, nitidus, ‘capite thorace majore, elytris griseo-fuscis, nigro-reticulatis, ad basin et externé dilutioribus, obscuro-flavescentibus, femo= ribus posticis supra sanguineis. (Long. corp. 1 unc. 4—8 lin.) Gryl. campestris. Linné.—Sowerby B. M. v. i. pl. 64.—Ac. campestris. Steph. Catal. 303. No. 3348. Robust; deep shining black ; head larger than the thorax, the latter nearly twice as broad as long, rather widest in front ; elytra griseous-brown, irregularly reticulated with black nervures ; the base and inner side palest, or dull yellowish; wings small, much shorter than the elytra in the male, but longer in the female ; posterior femora beneath blood-red at the base. The ovipositor in the female is nearly as long as the abdomen, and ascends ; and the elytra are deep black and regularly reticulated. This is a rare species, at least, I would rather say, is but seldom captured, on account of its extreme shyness; but I am inclined to believe that it is far from uncommon in several parts of the south of England: it has been found in the vicinity of London and at Windsor, in the New Forest, Devonshire, Cornwall, &c., but I 40 MANDIBULATA.——ORTHOPTERA. believe not towards the north; on the continent it does not occur beyond the latitude of York: it is found in June and July, fre- quenting holes in dry soils, the male making a very loud chirping by day as well as by night. Sp. 2. sylvestris. Apterus, ochreo-ferrugineus, capite atro orbitis maculaque frontali ochreis, thoracis disco pallido minutim nigro punctato, elytris brevis- simis piceis. (Long. corp. 9—11 lin.) Ac. sylvestris. Fabricius.—Steph. Catal. 303. No. 3349.—Curtis, v. vii. pl. 293. Apterous ; rusty-ochreous; head black, shining, with the orbits of the eyes and a patch on the face pale tawny, or ochreous ; thorax black, slightly pilose, the disc spotted with black; elytra about two-thirds the length of the abdomen, pitchy, with the principal nervure and the base pale; abdomen black, with two pilose styles at the apex; legs variegated with black. Female with the elytra very short, dirty-ochreous, with the sides and nervures pitchy. I obtained this insect above twenty years since from Mr. D. Byd- der, who discovered it in the New Forest, in the vicinity of Lynd- hurst, the second year that he found the indigenous Cicada; since that period it has been again found in the same neighbourhood, and I obtained many specimens from a collector, whom I employed in the years 1820 and 1821, from the vicinity of Brockenhurst; also in the New Forest. Sp. 3. domesticus. Cinereo-glaucus, glaber, thorace posticé truncato, alis elytris longioribus. (ong. corp. 9—14 lin.) Gryl. domesticus. Linné.—Donovan, v. xi. pl. 409.—Ac. domesticus. Steph. Catal. 303. No. 3350. Shining glaucous ash, scarcely tomentose ; head pitchy-black, very glossy, with whitish transverse lines; thorax truncate in front and behind, with a fine dorsal channel; the disc slightly pilose, and with three triangular blackish spots ; elytra scarcely so long as the abdomen, in the male with a large peliucid space, in which the nervures run very irregularly, the apex alone reticulated as usual, as the entire disc is in the female; wings whitish, with the costa and a streak near the apex brownish; abdominal styles pale and pilose ; ovipositor of the female about half the length of the body, somewhat clavate at the apex; legs pilose; posterior femora very glossy within. This, which is the ‘‘ domestic cricket” that most persons have heard, though few have seen, occurs in plenty in kitchens, bake- houses, and in other warm situations, existing positively within a few inches of the fiercest domestic fires; it is very impatient of cold; is ACHETID#.—G@CANTHUS. 4A fond of all sorts of kitchen refuse, crumbs of bread, yeast, &c.; also of milk, broth, water, wet linen, woollen stockings, &c., in which last it will frequently gnaw holes, while they are also not uncommonly found drowned in vessels of beer and the like: when numerous, they are very destructive, as, by means of their powerful mandibles, they burrow away the mortar from between the bricks, and thus at times open a communication from one house to another: although very active, they rarely fly, except when they wish to change their residence: it is said that they may be extirpated from situations where they are troublesome by making a loud noise, or by the introduction of Ac. campestris, but in this country this latter remedy cannot readily be adopted, from the rarity of the insect just alluded to. Genus XITI.—CECANTHUS, Serville. Antenne approximating at the base, setaceous, longer than the body ; head oblong-ovate, deflexed ; palpi four, terminal joint cylindric; mandibles stoutish, bi- or tridentate at the apex; eyes oblong; thorax somewhat convex above, of an elongate-quadrate form, and a little deflexed behind ; elytra incumbent, longer than the abdomen, oval, with numerous impressed striz, and three distinct decussating ones; wings rounded, without a tail ; abdomen oblong, furnished at the apex, in the males, with elongate styles, and in the females with a filiform ovipositor, which is nearly straight, being but slightly recurved at its apex ; legs long and rather slender, posterior longest, the femora simple, the tarsi with two rows of minute spines. One indigenous species only is known of this curious genus, which differs from the foregoing in having the antennze approximating at the base, the thorax somewhat longer; the elytra larger, and exceeding the abdomen in length, the latter being oblong, and fur- nished at the apex, in the females, with a very long ovipositor. 4+Sp. 1. Italicus. Virescente-albidus, oculis atris, elytris hyalinis, “abdomine subdiaphano. (Long. corp. 9 lin.) Ac. Italicus. Fabricius.—Steph. Catal. 303. No. 3351.—Aphelomera Italica. Steph. Nomen. 2d edit. col. 111. Of a greenish-white, with black eyes ; abdomen oblong, whitish, diaphanous ; elytra hyaline, somewhat yellowish towards the apex ; wings transparent white ; legs also diaphanous white. Of this singular insect I have seen one imperfect example only, which was taken by my late friend Mr. Haworth, near Halvergate in Norfolk, many years since, and is now in Mr. Westwood’s cabinet. Manopizurata, Vor. VI., 307TH June, 1835. F 42 MANDIBULATA.—ORTHOPTERA. Famity IV.—BLATTIDA, Stephens. Body broad and flat, oval; antenne very long and setaceous, consisting of from 50 to 150 minute articulations ; head somewhat triangular, often con- cealed beneath the front of the thorax; mavillary palpi elongate, with the terminal joint somewhat securiform ; eyes kidney-shaped ; ocelli obsolete ; thorax rounded, nearly transverse, margined; elytra lapping over on the inner margin, the apex slightly gaping, as long as the wings, and frequently — longer than the abdomen, the latter flat above, convex beneath, terminated at the apex with two jointed moveable processes, and occasionally also with two inarticulate styles; legs compressed, formed for running ; ¢ibie very spinous, the spines moveable; farsi five-jointed. The disagreeable insects comprised in this family, called ‘* Cock- roaches,” differ from the true Orthoptera by having the tarsi five- jointed; the body also is ovate, depressed, the head concealed beneath the front of the thorax, the legs all formed alike, compressed, with very spinous tibiz, the spines themselves being moveable; the apex of the abdomen is furnished with two porrect articulated pro- cesses, in addition to two styles that are frequently present; the sexes chiefly differ in the number of segments to the abdomen, being Genus XIV.—BLABERUS, Serville. Antenne moderate ; head nutant; thorax with its anterior margin rounded and entire, completely concealing the head ; elytra gradually rounded on the lateral margin, and not suddenly narrowed towards the apex, the disc with a curved stria: body elongate, ovate, glabrous; abdomen with its terminal segment moderate and unarmed, but furnished with the usual appendages ; legs rather moderate in length ; ¢ibie with long spines without ; fars¢ with the basal and terminal joints elongate, the intermediate stout, and each of equal length ; the claws without any cushion between them. The want of a cushion between the claws is a leading mark of the separation of this genus from the other assumed indigenous ones of this family, to which other characters might be added, as the relative proportions in the joints of the tarsi, &c. +Sp. 1. giganteus. Lividus, thoracis clypeo macula quadrata fused. (Long. corp. 2 unc. 1—2 lin.) Bl. gigantea. Linné.—Pantalogia (!)—Shaw, General Zoology, v. vi. pl. 41 (!) Steph. Catal. 303. No. 3352, note. Livid: thorax with a large fuscous spot on its disc. In the Pantalogia (article Blatta) this large insect is stated to be British, but BLATTID£.—BLATTA. 43 eight in the males, and six or seven in the females, and the last sex has the termimal segment sometimes keeled: the eggs of these insects are compound, that is, they are enclosed in an oblong case, I believe that it is a native of South America and the West Indies: certain it is that specimens have been found in England, as in Mr. Beck’s cabinet are several examples which he found in the West India Docks ; but it is evident from that they have no pretensions to be considered British. In Shaw’s General Zoology, it is supposed, by a quotation from Mouffett, that a specimen once occurred in the tower of a church at Peterborough, but the vagueness of the description renders the story improbable. Genus XV.—BLATTA, Auctorum. Antenne glabrous, very long, inserted in.an excavation near the eyes; head nutant, nearly concealed beneath the anterior margin of the thorax; eyes depressed ; thorax rounded in front, slightly waved behind; elytra with a shallow curved channel towards the base, the apex sometimes truncate; males with wings, females generally destitute thereof, and in some instances wanting elytra; body glabrous and shining, of a soft consistence, much depressed above ; abdomen in the males furnished at the apex with two articulated processes and two styles; Jegs slender, long, especially the posterior ; the hinder femora and all the t¢bie armed with spines, the former below and the latter on the outside ; tars with the basal joint as long as all the others united; claws with a more or less evident puvillus, or cushion, between them. From the preceding genus these insects may be known by having a cushion between the claws, exclusively of other differences ; and from Ectobius they differ not only by having the basal joints of the tarsus as long as the four remaining joints, the femora more or less spinose beneath, but in being of a much larger size, &c.; they are most voracious insects, and devour all kind of animal and vegetable substances that they can obtain: they are extremely destructive in kitchens, bakehouses, on board ship, &c.: they are probably the most active of insects, running from the light, which they detest, when suddenly disturbed, with inconceivable velocity; they are, consequently nocturnal insects, and the common species, BI. orientalis, abounds so in some underground apartments in London, as literally to cover the floor, within a few minutes after the lights are extinguished. Sp. 1. Madere. Fusca, thorace elytrisque lividis fusco variegatis. (Long. corp. 1 unc. 6—10 lin.) Bl. Madere. Fubricius.—Donovan, v. xiii. pl. 457 (!)—Steph. Catal. 304. No. 3354, note. EQ 44, MANDIBULATA.—ORTHOPTERA. having a ridge on one side, whence the young larve escape. ‘The indigenous species are divisible into the following genera :— Pulvill intra ungues nulli : : . 4 5 . 14. BLaBeERus. conspicui : Tarsorum art. basali reliquis longiori : r 5 - 15. BLATTa. brevior! : . 5 - 16. Ecrosius. Head greenish-brown; antenne dusky; thorax livid, with irregular fuscous spots ; elytra also livid, elegantly veined longitudinally, and thickly adorned from before the middle with raised transverse lines, placed somewhat irre- gularly ; these lines are broadly fuscous, and produce a variegated appear- ance ; the base is plain in colour, but is ornamented with a longitudinal fuscous streak on the angle of the elytra, and a curved one extending to the suture, before the middle; the body beneath and legs are slightly testa- ceous. This fine insect, which is a native of Madeira and the adjoining islands, has been frequently taken in London, but like the other species of the genus is not indigenous. Sp. 2. Americana. Ferruginea, thoracis clypeo posticé fascia exalbida, elytris alisque abdomine longioribus, apice rotundatis. (Long. corp. 1 unc. 5—8 lin.) Bl. Americana. Linné.—Shaw, Gen. Zool. v. vi. pl. 41 (!)—Steph. Catal. 304. No. 3355, note. Ferruginous ; head with a whitish spot on each side between the antenne ; eyes dusky; thorax with a waved whitish fascia on the hinder margin (which is a little sinuated), sometimes emitting a branch on each side, which extends round the entire margin, and a second in the middle, forming a longitudinal streak, and united to the other two on the anterior edge, leaving only two large ferruginous spots on the disc ; elytra of a brownish tinge, prettily veined, and with the interstices transversely strigose; the apex rounded ; abdomen paler, with the terminal segment rounded in the male, and glabrous, carinated and pilose in the female, its apex furnished with two processes of about fourteen joints, and also the usual styles ; legs pale testaceous ; femora and tibiz with dusky spines. Found occasionally in warehouses and outbuildings, by the side of the Thames, especially below London Bridge ; it is a native of America, and has evi- dently been brought into this country, and is consequently not an indigenous production. Sp. 3. orientalis. Ferrugineo-fusca, thorace concolore, elytris alisque abdomine brevioribus, apice subtruncatis ; foemina aptera elytrorum rudimento. (Long. corp. 8—14 lin.) Bl. orientalis. Linné.— Wood, Gen. v.i. pl. 31.—Steph. Catal. 304. No. 3353, note. BLATTID£.—ECTOBIUS. 45 Genus XVI.—ECTOBIUS, Westwood. Antenne glabrous, very slender; head nutant ; thorax rounded in front, and concealing the head, slightly produced in the middle behind; eyes small ; elytra in the males as long as the abdomen, with a single curved channel towards the base ; wings generally complete in both sexes ; body oblong, more or less depressed above, mostly glabrous, sometimes slightly pubescent above ; abdomen of the males furnished at the apex with two jointed pro- cesses only, but destitute of styles; in the female the terminal segment is not carinated beneath; /egs moderate, posterior rather the longest ; femora rarely with spines beneath ; ¢ibie with spines on the outer edge ; tarsz with _ the three basal joints gradually diminishing in length, the basal one not so long as the four others united ; claws without a cushion between them. This genus embraces all the truly indigenous species of ‘ Cock- roach,” though probably the first two of those, hereafter given, may have been introduced as there surmised: they differ not only in their smaller size and paler tints from Blatta, but from having the tarsi dissimilar in the proportions of the joints, the basal one being shorter than the remainder united ; the males are not furnished with styles at the apex of the abdomen, and both sexes are generally winged: all but the first two occur beneath the bark of trees. Rusty-brown, somewhat obscure ; head with a white dot between the eyes on each side; thorax immaculate ; elytra abbreviated in the male, truncate at the apex, longitudinally veined and transversely strigose, as in the pre- ceding species; wings small, whitish, with the costa fuscous; female without wings, and with the rudiments only of elytra; abdomen and appendages as in B]. Americana: legs ferruginous, with concolorous spines ; tarsi testaceous; pulvilli (or cushions) minute. Like the foregoing insect this has been introduced into this country, and is not, therefore, an aboriginal native: it occurs, however, in houses, especially in London and in maritime commercial towns, in utter profusion, swarming by myriads in some of the underground apartments of the metropolis: it is a native of India, and has not only been introduced into this country through the aid of commerce, but into most other European ones ; it appears not to have reached Sweden till about a century back (1734 or 1739), having been introduced from Russia; but it has been known in Britain twice as long, being common in wine cellars in London ‘‘ Londini apud nos in cellis vinarijs,’ according to Mouffett, whose “ Theatrum” was published in 1634. 46 MANDIBULATA.—ORTHOPTERA. Sp.1. germanicus. Lividus, antennis articulo basali excepto, oculis, thoracisque lineis duabus parallelis, nigris. (Long. corp. 9—10 lin.) Bl. germanica. Linné.— Donovan, v. x. pl. 341.—Steph. Catal. 304. No. 3356. Head yellow, with a dusky streak between the eyes, the latter black; antenne, except the basal joint, which is yellow, the same ; thorax livid, very glossy, with two longitudinal parallel black lines, neither touching the anterior nor posterior margins; scutellum and elytra livid, immaculate, the nervures single in the middle of the costa, furcate towards the apex, and reticulated on the inner margin; wings whitish at the base, the apex and nervures dusky ; abdomen yellow, with the region of the stigmata dusky or pitchy ; legs yellow, immaculate ; femora beneath and tibie on the outside with concolorous spines. It is extremely doubtful whether this insect be really indigenous: I feel inclined to decide against its admission, as it appears to be confined, at least in this country, to dwellings and warehouses; and it unquestionably occurs, not uncommonly, in merchant vessels: it is said to inhabit the woods of India; but it occurs in various parts of Europe: in England it has been found about and in London, Portsmouth, Plymouth, &c. Sp. 2. pallens. Pallide-testaceus, nitidus, thorace flavo-testaceo lurido, toto immaculato, oculis atris. (Long. corp. 83 lin.) Bl. pallens. Steph. Catal. 304. iVo. 3357.—Bl. lucida. Hagenb. Symb. Faun. Helv. 18. f. 9? Above pale-testaceous, and shining ; beneath of a paler hue, and immaculate ; thorax very glossy, and of a fine testaceous-yellow, also immaculate ; eyes deep black ; legs pale testaceous, with the femora beneath and the tibie on the outside armed with concolorous spines. Charpentier considers this insect (that is, if it be synonymous with Bl. lucida of Hagenbach) to be a variety of the foregoing ; but its jet black eyes, and totally immaculate glossy thorax, appear to form sufficient cha- racters of distinction: however, upon this point I am uncertain, having only my own dried specimen to assist me: it nevertheless appears to differ in form. i My example of this insect was taken near London. Sp. 3. lapponicus. Pirate xxviii. f. 7.—Hlongato-ovatus, postice attenuatus, flavescens, thoracis disco maris, elytrorum atomis abdomineque in utroque sexti, nigris, pedibus piceis aut flavis. (Long. corp. 7—8 lin.) Bl. lapponica. Linné.—Steph. Catal. 304. No. 3358. Elongate-ovate, attenuated behind ; yellowish; head black, with the crown brownish ; antenne also black ; thorax smooth, black, with the lateral margins broadly, and the anterior and posterior narrowly, pellucid yellow ; BLATTID£—ECTOBIUS. AT elytra longer than the abdomen, pellucid-yellow, thickly sprinkled with numerous minute dusky atoms, and with a few larger spots disposed longi- tudinally ; wings slightly brownish ; abdomen black, with the lateral mar- gins yellow; femora slightly spined ; legs posteriorly with the tibie and tarsi frequently paler, and the tips of the latter dusky or blackish. The female is rather less, shorter and paler, head obscure; base of the antenne sometimes pale; thorax with the disc testaceous, the margins yellow ; elytra scarcely as long as the abdomen, with the spots rather more distinct than in the male ; abdomen broadish, pitchy or black, with the sides and margins of the segments yellow; legs yellow, with the apex of the tarsi, the claws and pulvilli black. This appears to be a rare species in England: I once (in July 1827) took a pair in a wood near Albury in Surrey, and obtained it in the same season from the vicinity of Lyndhurst; and I do not remember to have seen other specimens elsewhere. Sp. 4. perspicillaris. Ovatus, flavescens, thoracis disco testaceo, elytris atomis, abdomineque supra fuscis, antennis pallidis. (Long. corp. 6—7 lin.) Bl. perspicillaris. Euesly 2—Steph. Catal. 304. No. 3359. Ovate, yellowish; thorax with the disc testaceous, the margins pellucid yellow ; elytra with some distinct dusky spots disposed longitudinally, and numerous blackish atoms on the surface ; abdomen above fuscous, with pale lateral margins, beneath blackish ; legs pale yellowish-pitchy, with the knees paler; femora with a few spines within; wings fuscescent, darkest at the apex. Of this insect (which is supposed by Charpentier to be a variety of Ec. lapponicus) I have two examples—one taken in the neigh- bourhood of Lyndhurst ; the other I obtained from the Marshamian collection. Sp. 5. Panzeri. Hlongatus, pallide-ochraceo-flavescens, thoracis disco testaceo fusco, elytris pallidis lateribus membranaceo-pellucidis, disco feré immaculato, ' antennis pedibusque picets. (Long. corp. 5—6 lin.) Bl. Panzeri. Steph. Catal. 304. No. 3360.—Bl. germanica. Panzer Faun. Germ. ii. f. 16. Slightly elongate, or elliptic; of a pale ochreous yellow ; head dusky ; mouth pale ; thorax with its disc testaceous-brown, sometimes a little blackish, the margins pale and pellucid ; elytra also pale, the lateral margins pellucid brownish-yellow, the disc with a few minute brownish atoms; abdomen beneath pitchy, above pale testaceous-brown ; legs pale pitchy, the femora palest and without spines; antenne also pitchy. Found not uncommonly on the coast of Devonshire, near Kings- 48 MANDIBULATA.—ORTHOFTERA. bridge and Plymouth; also in Cornwall and in the New Forest, in June. Sp. 6. nigripes. Elongatus, ochraceo-flavescens, thoracis disco antennis pedi- busque nigris, tarsorum articulo basali coxisque albidis. (Long. corp. 6 lin.) Bl. nigripes. Steph. Catal. 304. No. 3361. Elongate-ovate, or elliptic; ochreous-yellow, with a brownish tinge; head, antenne, and eyes, black; thorax with its disc black, the margins pale testaceous and pellucid; elytra pale yellowish-brown, or ochreous, with some remote, somewhat indistinct, darker atoms on the disc, especially towards the apex; abdomen black beneath, dark brownish-ochre above, with a black streak on each side ; legs black, with the coxe pale ochreous, the base of the tarsi whitish ; femora without spines. This species also occurs, in June, in the New Forest, about Lyndhurst, and I believe also in Dorsetshire. Sp. 7. lividus. Brevis, latus, ovatus, pallide testaceo-flavus, immaculatus, oculis atris; abdominis basi nigro. (Long. corp. 5—6 lin.) Bl. livida. Fabricius —Samouelle, pl. 4. f. 17.—Steph. Catal. 304. No. 3362. Rather broad and short, ovate; pale testaceous-yellow ; the head and centre of the thorax brighter ; eyes deep-black ; elytra pale immaculate ; breast and abdomen beneath also very pale, the latter above black, with the sides, apex, and a fine margin to each segment, pale testaceous-yellow ; legs very pale ochreous; femora with a few spines within ; tarsi at the apex and claws dusky. This species occurs beneath the bark of trees at Darenth and Birch woods in June, and | rather think in the vicinity of Dover. Sp. 8. pallidus? Brevis, sublatus, ovatus, pallide testaceo-brunneus, oculis atris, pleuris, abdominis lateribus infra, basi que supra nigris, elytris maculis aliquot brunneis. (Long. corp. 4—6 lin.) Bl. pallida. Olivier ?—Steph. Catal. 304. No. 3363. Short, rather broad and ovate; of a pale testaceous-brown; eyes deep black ; thorax glossy, sometimes faintly varied with brownish atoms ; elytra paler, also with some faint brownish atoms, and three or four rather conspicuous brownish spots; pleure, base of the abdomen, and a Jateral streak on each side beneath black ; legs very pale; femora with a few spines beneath. I have received this insect from Devonshire, and it has occurred in the New Forest in June. NEUROPTERA.—PANORPINA. 49 Orver IV.—NEUROPTERA. Wing's all membranaceous and reticulated, with numerous areolets, generally four, rarely two, or wauting ; eyes usually large ; ocelli two or three ; mouth various; prothorax distinct, ample; scapule and parapleure parallel and oblique. Metamorphoses various: larva with six articulate legs, and with strong horny mandibles. The contents of this order are so extremely various and diversified, as almost to preclude the possibility of drawing up a concise set of characters, that shall embrace every species that legitimately belongs thereto: in some the wings are four in number and alike, and the posterior ones (occasionally) actually exceed the anterior in bulk; while in other groups they are not only dissimilar to the anterior, in reticulation, &c., but they actually become so much diminished, as in some genera (Cloéon, Czenis, &c.) to disappear; while again in other genera (Boreus, Atropos, &c.) all the wings are wanting. If we select other characters, the same discrepancy is observable—the antenne, for instance, in Ascalaphus, a foreign genus, are longer than the body and clavate, while in the gigantic Libellule they are so short and slender, especially at the tip, as to be scarcely visible ; again, in these last insects the mandibles, and in fact all the oral organs, are strongly developed, while in the Ephemeride they almost totally disappear, the rudiments of a labrum and palpi only being evident: in fine, there appears scarcely an organ but what undergoes the extreme of variation in this Protean order. If the structure of these insects is so diversified, their habits are no less so: some of them in the primary stages inhabit the water, others live on trees, beneath bark, &c., but most of them appear to be carnivorous: again, in metamorphoses, there is as much diver- sity, as more particularly noticed under the respective families, and in one group (Ephemeridz) a sort of quadruple metamorphosis takes place. From the extremely variable contents of this order, it becomes necessary to subdivide it into various groups before treating of their contents: I shall therefore proceed to notice the first of the indigenous ones, in which one of the genera (Boreus) approaches nearest to the Orthoptera. Section I.—PANORPINA. Head produced in front in form of a rostrum, or beak, at the apex of which Mawnpisutata, Vou. VI., June 30TH, 1835. G 50 MANDIBULATA. NEUROPTERA, the trophi are placed ; the latter variable in the different genera ; antenne setaceous, inserted between the eyes, and somewhat approximating, com- posed of numerous articulations, the basal one being largest, the remainder generally distinct: head transverse; eyes prominent; thorax with the anterior segment occasionally very short, but sometimes ample; wings sometimes wanting, or four, either uniform in appearance, or very dissimilar ; body elongate-conic, or subcylindric ; legs generally long and slender ; tarsi long, five-jointed, slender. Metamorphosis unknown. This family contains only two British genera, thus distinguished: Ale 4, subsimiles, incumbentes, reticulate : : 3 . 2. PANORPID. nullz, aut rudimentes : . : : 0 . |. BorEIpaé. Famity 1.—BOREIDAE mihi. Wings none, or only rudimentary ; ocel/i wanting ; prothorax, or collar, ample ; abdomen obtuse at the apex in the males; furnished with an ovipositor in the females. The ample prothorax, combined with the almost total absence of wings, obtusely terminated abdomen in the males, as well as the presence of a peculiar ovipositor in the females, sufficiently indicate the distinctions of this family, which consists only of one indigenous genus. Genus I.—BOREUS, Latreille. Antenne approximating at the base, rather long, filiform, composed of more than twenty joints, the basal one of which is broad and the terminal conic ; head nutant; thorax ample, its first segment or prothorar large and uneven; the two following, or meso- and meta-thorax short, each furnished in the males with a pair of slender wings, above half the length of the abdomen, and resembling an awl, the apex recurved and ciliated ; and in the females with a pair of short scale-like appendages ; abdomen robust, cylindric, and obtuse at the apex in the males ; somewhat acuminated at the apex in the females, and furnished with a triarticulate ovipositor, having a bilobed valve beneath; /egs long and slender, simple in both sexes. The characters of this genus are sufficiently indicated in the ob- servations appended to the family Boreidee, so that it is unnecessary to repeat them: the only British species is found in the winter season under moss, stones, &c., and appears to be rather extensively distri- buted: its metamorphoses are unknown. PANORPIDE.—PANORPA. 51 Sp. 1. hyemalis. Fuscus, subeneo lucidus, rostro, oviposttore pedibusque ochreis. (Long. corp. 2—35 lin.) Pan. hyemalis. ZLinné.—Bo. hyemalis. Curtis, v. iii. pl. 118.—Steph. Catal. 304. No. 3364. Fuscous, with a bronzed tinge; head and eyes black, the former bronzed ; rostrum pale ochreous, with the tip brown; prothorax dusky ; meso- and meta-thorax ochreous ; abdomen with the edges of the segments palish ; the ovipositor ochreous, with a dusky tip ; legs pale ochreous, with the terminal joint of the tarsi black at the apex ; antenne blackish, with the base pale. The wings are pale ochreous-brown in the male. This is a very local insect: it was first taken by Dr. Leach near Costessy in Norfolk, and subsequently, rather in abundance, by the Messrs. Walker, near Southgate; and last winter, in the vicinity of Nottingham, by R. Bakewell, Esq., to whom I am indebted for specimens. Famity I1—PANORPIDA, Leach. Wings four, ample, reticulated, incumbent during the repose of the animal, though slightly extended in form of a long triangle; ocelli distinct; pro- thorax short, resembling the collar of the Hymenoptera ; abdomen generally elongate and attenuated to the apex, sometimes furnished with a cheliform appendage in the males, but never with an ovipositor in the females. Of this family the metamorphoses are likewise unknown; and from the Boreidz it differs in having ample wings, combined with a very short prothorax, distinct ocelli, an elongate tapering abdomen ; furnished at the base in the males (at least in the British genus) with forceps, and without an exserted ovipositor in the females. Genus II1—PANORPA Sp. 23. hyalinus. Fusco-piceus, pedibus pallidioribus, abdominis bast ochraceo= Slava, alis hyalinis, limpidis, stigmate fusco. (Long. corp. 1 lin. ; Exp. Alar. 3 lin.) Ps. hyalinus. Steph. Catal. 313. No. 3508. Head pitchy-brown, clypeus and mouth paler; eyes black ; thorax pitchy- red, immaculate ; abdomen above pitchy-brown, with the base ochreous- yellow, beneath pale pitchy-red ; legs rufo-piceous, with the tibie palest ; wings hyaline, limpid, nervures and stigma fuscous ; antenne short, pitchy- brown, palest at the base. Taken in June, near London. Sp. 24. bipunctatus. Flavo nigroque varius, alis anticis maculis 2-bus nigri- cantibus. (Jong. corp. 3—1¥ lin.; Exp. Alar. 23—3} lin.) He. bipunctatus. Linné.—Ps. bipunctatus. Steph. Catal. 313. No. 3509. Varied with black and yellow, greenish during life; wings hyaline, with fuscous nervures, anterior with the stigma blackish, and a spot of the same towards the base of the inner margin. Found occasionally within the metropolitan district, and in Suffolk, in the summer. Sp. 25. sexpunctatus. Fuscus: alis anticis maculis fuscis punctisque 6 dis- tinctts. (Long. corp. 3—1 lin.; Exp. Alar. 24—3 lin.) He. sexpunctatus.. Linné.—Ps. sexpunctatus. Steph. Cutal. 313. No. 3510. th Fuscous: wings hyaline, with a golden tit; anterior with fuscous clouds or 124 MANDIBULATA.—NEUROPTERA. spots, and six distinct blackish dots, disposed somewhat semicircularly towards the outer base of the wings ; posterior immaculate. Also taken near London, and in Suffolk. Sp. 26. quadrimaculatus. Nigro flavoque varius, alis anticis maculis 4 brunnevs- (Long. corp. 1 lin.; Exp. Alar. 3 lin.) Ps. quadrimaculatus. Latrezlle.—Steph. Catal. 313. No. 3512. Varied with black and pale yellow ; wings hyaline, anterior with four brown spots ; antenne pitchy. Not uncommon within the metropolitan district, where it occurs in the summer. Sp. 27. striatulus. Fuscus, flavo maculatus, alis hyalinis, anticis fusco striatrs. (Long. corp. J lin.; Exp. Alar. 3 lin.) Ps. striatulus. Fabricius.—Steph. Catal. 313. No. 3511. Head yellow, mouth and eyes fuscous; thorax fuscous; breast yellow ; abdomen fuscous, the sides ochreous; legs pale yellow; anterior wings _hyaline, with fuscous nervures; posterior immaculate; antennz fuscous. Found in the summer near London. Sp. 28. flaviceps. Fuscus, capite, pedibusque ochraceo-flavis, antennis rufo- piceis, alis hyalinis nebulis obscuris subfuscescentibus. (Long. corp. 3 lin. ; Exp. Alar. 25 lin.) Ps. flaviceps. Steph. Catal. 312. Vo. 3513. Head pale ochreous-yellow ; eyes black ; thorax and abdomen fuscous, the edges of the segments a little palish ; legs pale ochreous yellow: antennze short, deep pitchy-red; wings hyaline, with pale fuscous nervures and obscure fuscescent clouds between them. Taken at Ripley, in June. Sp. 29. subocellatus. Niger, albido variegatus, antennis brevibus, alis hyalinis maculis aliquot subocellatis nervisque fuscescentibus. (Long. corp. 3—1 lin.; Exp. Alar. 25—3 lin.) Ps. subocellatus. Steph. Nomen. 2d edit. Appendix. Black: head and thorax varied with whitish ; a lateral streak and the extreme edges of the segments of the abdomen also whitish; legs pale, knees fuscescent; wings hyaline, anterior with the nervures pale fuscous ; each areolet with a fuscous spot on a pale ground, producing an ocellated appearance; antenne rather short. Found at Hertford and Ripley, and in other places within the metropolitan district, in June and July. PSOCID£.—PSCCUS, 125 b. First nervure of anterior wings trifurcate. Sp. 30. immaculatus. Pallide ochraceus, oculis atris, antennis longtoribus fus- cescentibus, pedibus pallidis, alis limpidis, nervis tenuibus stigmateque dl centibus. (Long. corp. 1—13 lin.; Exp. Alar. 4—S lin.) Ps. immaculatus. Kirby MSS—Steph. Catal. 313. No. 3514. Very pale ochreous, immaculate; eyes deep black; legs pale, with the tarsi fuscescent ; antennz rather long and brownish, the basal joint pale; wings longish and narrow, limpid, nervures very slender, and pale fuscescent ; stigma also fuscescent, but very pale. Found in June near London; also at Ripley and in Suffolk. Sp. 31. rufescens. Rufescente-flavus, capite thoraceque nigro maculatis, abdominis dorso subpiceo, pedibus ochraceo-pallidis, antennis longioribus, alis limpidis, stigmate concolore.. (Long. corp. 14 lin.; Exp. Alar. 4% lin.) Ps. rufescens. Steph. Catal. 313. No. 3515. Reddish-yellow : crown with a dusky spot, and thorax with three blackish ones; abdomen above somewhat pitchy; legs pale ochreous; antenne rather long and fuscous, with the basal joint pale; wings long and limpid, stigma concolorous ; nervures very slender and brownish. Taken at Hertford in June. Sp. 32. flavescens. Ochraceo-flavus, immaculatus, oculis atris, antennas longio= ribus fuscis, pedibus pallide flavescentibus, alis limpidis, stigmate suhfuscescente, venis tenuissimis fuscescentibus. (Long. corp. 1} lin.; Exp, Alar. 43 lin.) Ps. flavescens. Steph. Nomen. 2d edit. col. 116. Pale ochreous-yellow, immaculate ; eyes black; legs.pale yellowish; antenne rather long and fuscous, the basal joints palish; wings limpid, with the stigma slightly fuscescent, nervures very slender, and pale fuscescent. Found at Ripley and Hertford, and other places within the me- tropolitan district, during the summer. Sp. 33. quadripunctatus. Niger, antennis abdomine pedibusque pallidis, alis hyalinis, anticis bast punctis 4 atris, apice fusco radiatis. (Long. corp. 3—1 lin, ; Exp. Alar. 23—33 lin.) Ps. 4-punctatus. Fabricius.—Steph. Catal. 313. No. 3516. Head and thorax black, immaculate; abdomen, legs, and antenne pale ; wings hyaline, anterior with four distinct large black spots at the bases three of which are on the inner margin, and one towards the disc, the apex with radiating fuscous streaks, posterior immaculate. In immature specimens the head and thorax are pale pitchy-red. Very abundant on trunks of trees, throughout the metropolitan district, during the summer ; found also in Suffolk and near Dover. a lt 126 MANDIBULATA.—NEUROETERA. Sp. 34. subpunctatus. Pallide rufus, oculis atris, antennis pedibusque pallidis, _ alis subflavescentibus nebulis aliquot obscuris nervisque fuscescentibus. (Long. corp. 2 lin.; Exp. Alar. 23 lin.) Ps. subpunctatus. Steph. Catal. 313. No. 3517. Pale red: eyes deep black; antenne and legs pale; wings somewhat of a pale yellowish hue, with the nervures and a few obscure dots, or clouds, fuscescent. Found in the vicinity of London in June. Sp. 35. costalis. Testaceo-rufus, capite thoraceque fusco punctatis, oculis atris, antennis pedibusque pallide rufis, alis anticis, costa presertim, fusco maculatis. (Long. corp. 1 lin.; Exp. Alar. 23 lin.) Ps. costalis. Steph. Catal. 313. No. 3518. Testaceous-red: eyes deep black; head and thorax with fuscous spots, darkest on the latter; legs and antenne pale red ; wings hyaline, slightly flavescent, the nervures brownish, the disc and costa with several largish fuscous clouds and spots. Also taken near London in June. Sp. 36. nervosus. Testaceo-rufus, oculis, thoracis dorso, abdominisque apice atris, alis hyalinis venis fuscescentibus. (Long. corp. 1 lin. ; Exp. Alar. 33 lin.) Ps. nervosus. Steph. Catal. 313. No. 3519. Testaceous-red: eyes black; back of thorax the same; abdomen light red, © its apex and a dorsal line black; legs pale; wings hyaline, the nervures slightly fuscescent; stigma brownish. Found in June within the metropolitan district. Sp. 37. maculipennis. Niger, pedibus piceis, alis anticis fusco nebulosis macu- lisque 2-bus magnis versus upicem saturatioribus. (Long. corp. 1 lin. ; Exp. Alar. 3 lin.) Ps. maculipennis. Steph. Nomen. 2d edit. col. 117. Black, with some pitchy tints on the sutures of the thorax; legs pitchy ; wings hyaline, anterior with the nervures and some obscure clouds fuscescent, and with two large fuscous spots (one the stigma), the other opposed to it on the anal angle; the base of the stigma pale. Taken near London in July. B. Anterior wings without a discoidal areolet ; second nervure trifid. Sp. 38. nigricornis. Niger, collaris et thoracis lateribus pedibusque rufo-piceis, antennis atris, alis fusco-hyalinis. (Long. corp. 3 lin.; Exp. Alar. 23 lin.) Ps. nigricornis. Step2. Catal. 313. No. 3520. Black: sides of the collar and of the thorax pitchy-red ; abdomen dull black; PSOCID.£.—Psocus, 197 legs deep piceous, with a tinge of red towards the inner base of the femora and of the tibie ; antenne deep black, and slightly pilose in the males; wings hyaline, fuscous; nervures and stigma darker. Taken in June at Hertford. Sp. 39. pheopterus. Rufo-piceus, antennis pedibusque pallidioribus, alis hyalinis saturate fuscis, venis stigmateque saiuratioribus. (Long. corp. 3—1 lin.; Exp. Alar. 25—3 lin.) Ps. pheopterus. Kirby MSS.—Steph. Catal. 313. No. 3521. ‘Pitchy-red: eyes blackish; legs and antennz pale pitchy-red, the latter rather short, and slightly pilose in the males; wings deep fuscous, hyaline, with the nervures and stigma darker. Jn some examples there is a whitish fascia on the abdomen, and the extreme edges of the segments are occasionally whitish. Also found at Hertford in June, and in other places within the metropolitan district. Sp- 40. nigricans. Piceo-tesiaceus, pedibus pallidioribus, thorace abdomineque supra nigricantibus, alis hyalinis, sublimpidis, nervis’ fuscis. (Long. corp. 3 lin.; Exp. A lar. ¢ lin.) Ps. nigricans. Kirby MSS.—Steph. Catal. 313. No. 3522. Head pitchy-testaceous: thorax blackish above, the sides and beneath pitchy- or reddish-testaceous ; abdomen also pitchy-testaceous, beneath blackish ; legs pale testaceous; antenne dusky; wings hyaline, nearly limpid, the nervures fuscous ; stigma slightly fuscescent. Taken in the vicinity of London, and in Suffolk. Sp. 41. abdominalis. Fuscus, abdomine flavo, ano nigro, alis hyalinis, antennis brevioribus. (Long. corp. § lin.; Exp. Alar. 13—1$ lin.) Ps. abdominalis. Fabricius.—Steph. Catal. 313. No. 3523. Fuscous: abdomen pale yellow, with its tip black; wings hyaline, immacu- late ; nervures fuscous; legs and antenne pale, the latter short. Found near Londen in the summer. Sp. 42. dubius. Rufo-piceus, antennis pedibusque pallidioribus, abdominis dorso vittd nigricante, alis hyalinis, flavedine tinctis, nervis subochraceo-fuscis. (Long. corp. 2} lin.; Exp. Alar. 13 lin.) Ps. dubius. Steph. Catal. 313. No. 3524. Pitchy-red : eyes fuscous ; abdomen with a blackish streak down the back ;_ legs and antenne pale pitchy-red; wings hyaline, with a yellowish tinge ; the nervures of an ochreous-brown. Taken in June near London. 128 MANDIBULATA.—NEUROPTERA. Genus XXIII.—ATROPOS, Leach. Antenne long and slender, composed of about 14 joints, the two basal ones robust, the remainder slender, cylindric, slightly pilose, gradually decreasing in length from the fourth, which is the longest: pa/pi with the two basal joints of equal length, the third longer and more slender, the terminal one stouter, obtuse, nearly as long as the other three: labrum transverse, rounded in front: head somewhat quadrate: eyes small, lateral : collar very short, transverse: thorax quadrate: wings none: abdomen oblong, or ovate, depressed, soft; Jegs moderate; four anterior femora slightly thickened, tip attenuated ; posterior pair considerably incrassated, narrowed at the apex: tibie all slender and simple: za7s? short, 3-articulate. The minute insects belonging to this genus may be known from the Psoci by not only being destitute of wings, but by having the tarsi 3-articulate, the body depressed, the hinder femora very much incrassated, and in the form of the head and trophi: they are found among collections of insects, plants, and animals, when unprotected by camphor, &c. and are sometimes very destructive to the former, especially to minute Lepidoptera, Hymenoptera, and Diptera, consuming the cilia of the wings of the former, and the antennze of the others. They are commonly known by the name of death-watch or book-lowse, the latter from their great resemblance to the insect whose cognomen it bears, and the former from their habits, they having the propensity, in common with certain Anobia, of making a peculiar noise, which somewhat resembles the tickmg of a watch, and is sometimes prolonged, at intervals of about a minute, for a con- siderable time. The anatomical details of the type of this genus are given by Nitzsche, in the fourth vol. of Germar’s Magazin der Entomologie, accompanied by a plate (No. II.) Sp. 1. pulsatorius. Pallidus, abdomine oblongo, ore rubro, oculis luieis. (Long. corp. 3—$ lin.) ; Termes pulsatorium. Zinné.—Wood, ii. pl. 75.—At. pulsatorius. Steph. Catal. 3138. No. 3525. Oblong, pale: eyes yellow ; antenne as long as the body ; abdomen beneath with a fuscous spot, and a dot of the same towards its apex; stigmata rufescent ; mouth red. Latreille supposes this to be the larva of Psocus abdominalis, but I cannot. assent to this opinion. Very abundant, at all times, in neglected boxes of dried insects, and in books. etl —— oe LAPHIDIID B.—RAPHIDIA. 129 Sp. 2. fatidicus. Ochraceus, abdomine ovato, ore pallido, oculis fuscis. (Long. corp. 3—1 lin.) Ter. fatidicum. Linné.—At. fatedicum. Steph. Catal. 314. No. 3526. Ochreous: body ovate; eyes fuscous ; antenne and mouth pale. Found, occasionally, in collections of insects, &c. Famiry IV.—RAPHIDIIDA, Leach. Antenne nearly setaceous: ocelli three, arranged in a triangle: thorax with its: first segment, or collar, very much elongated, narrow ; 2nd, or metathoraz, broader and shorter: wings of nearly equal size, reticulated: abdomen elongate, compressed, sft: legs slender; tibie cylindric ; spurs minute tarsi with four distinct joints, the last but one bilobate. Larva somewhat linear-elongate, soft, pubescent, dilated in the middle: head elongate, smooth ; collar corneous and elongate; legs six, whitish; pupa quiescent, with the parts exposed as in those of Tenthredinide. The insects belonging to this family may be instantly recognised by the great length of their neck, or collar, to which is attached a large obovate head, having the eyes prominent lateraliy and rather forward, the clypeus broad, inflected, &c.; the wings are all nearly alike and of similar bulk, with very distinct nervures, but which frequently differ on the opposite wings of the same individual, though there is a general habit of permanence existing :—one genus only is found in Britain. Genus XXIV.—RAPHIDIA Auwctorwm. Antenne with very numerous, short, articulations, the two basal ones largest : palpi filiform, maxillary four-jointed ; labial three-jointed : labrum somewhat quadrate, rounded in front: mandibles acute: head oval, narrowed behind, inflexed : clypeus broad: eyes prominent: collar very long, cylindric, slightly narrowed in front: wings deflexed, nervures slightly hairy: abdomen of the males, with two teeth at the apex; of the females, with a compressed; elongate, transversely-striated, and somewhat incurved ovipositor. As above stated, there is but one indigenous genus of this family, which may be known by its very long cylindrical neck, which is slightly narrowed in front, and bears the head, as it were, on a long footstalk—thence called Snake-flies :—their larvae somewhat resemble ~ those of the Hemerobidee, are active, soft, elongate, dilated in the middle; subsists on other larve beneath the bark of trees, &e. and Mawnprrutata, Vor. VI., Aucusr 1511, 1886. R 130 MANDIBULATA.—NEUROPTERA. the pupa has the limbs enveloped in a membrane, but free, as in the Hymenoptera, is quiescent, and not active, as stated by Curtis, in copying from Latreille. Sp. 1. Ophiopsis. Puiare xxxi. f. 1.—Atra, nitida, clypeo, antennarum basi, femorum apice tibiis tarsisque ochraceo-flavis, abdomine lineis 2-bus lateralibus marginibusque segmentorum stramineis. (Long. corp. § 5—63 lin.; ¢ 7—10 lin. ; Exp. Alar. 1 unc. 1—4 lin.) Ra. Ophiopsis. ~Linné.—Curtis, v.1i. pl. 37.—Steph. Catal. 314. No. 3527. Shining, black: head moderate, slightly punctured in front and behind ; clypeus, base of the antennae, under surface and tips of the femora, the tibie and tarsi ochreous-yellow, base and upper surface of the femora dusky ; abdomen with two rows of straw-coloured spots on each side, and the margins of the segments, especially in the middle of the back, and beneath of the same hue, - apex of the antenne fuscescent; wings slightly stained with fuscous, with fuscous nervures and black, or brownish stigma. Found in various places within the metropolitan district, but not very abundantly: it has occurred at Darenth and Coombe woods, also at Colney Hatch, and in the New Forest, in June. Sp. 2. megacephala. Atra, nitida, ore, antennarum basi, tibits tarsisque ochraceo- Jlavis, abdomine lineis 2-bus lateralibus stramineis, stigmate brunneo, capite magno lined posticé piced. (Long. corp. 4 6 lin.; ? 7—8 lin.; Exp. Alar. 14—16 lin.) Ra. megacephala. Leach MSS.—Steph. Catal. 314. No. 3528. Shining, black: clypeus, base of the antenne, the tibiz and tarsi ochreous- yellow ; abdomen with two rows of straw-coloured spots on each side ; anterior femora ochreous-yellow, with the base pitchy-black, four posterior ones pitchy-black, with the apex dark ochreous ; wings slightly stained with yellowish, nervures fuscous, stigma brown; head very large, faintly punctured, and generally with a dull tawny streak behind. Probably a variety of the preceding species. Taken occasionally within the metropolitan district, in June. Sp. 3. Londinensis. Nigra, nitida, ore, antennarum basi, collaris lateribus, tibiis tarsisque ochraceo-flavis, abdomine flavo punctato, alis hyalinis, stigmate JSlavescente. (Long. corp. 3 4—6 lin.; ? 5—74 lin.; Exp. Alar. 83—114 lin.) Ra. Londinensis. Leach MSS.—Steph. Catal. 314. No. 3529.—Ra. Ophiopsis. Wood, ii. pl. 52° Shining black: mouth ochreous-yellow, varied with black ; collar with its sides, and occasionally its anterior edge, broadly ochreous-yellow ; meso- thorax with a yellowish spot in front; abdomen with a dorsal and four lateral rows of yellow spots, the ventral segments edged with the same ; legs OL Wagstat® sc LO Westwood.aed endo Published by I.E Stephens Jan. L1E55, RAPHIDIID.E.—RAFHIDIA. 131 - ochreous-yellow, the femora, especially the hinder pair, dusky above; base of the antenne ochreous; wings hyaline, nervures brown; stigma pale yellowish. Found in the vicinity of London, in Battersea and Copenhagen- fields, about June, but not very common; apparently more abundant near Rochford, in Essex. Sp. 4. affinis. Nigra, nitida, antennarum basi, ore, collaris marginibus, pedi= busque anterioribus ochraceo-flavis, abdomine punctis flavis, alis hyalinis, stigmate subfluvescente. (Long. corp. g 5 lin. ; °7 lin.; Exp. Alar. 7—9 lin.) Ra. affinis. Leach MSS.—Steph. Catal. 314. No. 3530. Shining, black: mouth luteous, varied with black ; base of the antenne dull ochreous ; all the margins of the collar more or less broadly ochreous- yellow; legs ochreous-yeliow, the four anterior femora with a blackish line above, the posterior pair wholly pitchy ; tips of hinder tarsi also pitchy ; abdomen with minute yellow, or straw-coloured dots, placed in two rows on each side ; wings hyaline, with fuscous nervures, and a very slightly fus- cescent stigma. Also taken in June, near London. Sp. 5. maculicollis. Nigra, nitida, antennarum basi, clypeo, tibiis tarsisque ochraceo-flavis, collare fulvescente-ochraceo nigro maculato lateribus luteo- flavis ; alis subflavescentibus stigmate concolore, nervis fuscescentibus. (Long. corp. ¢ 5 lin.; ? 6} lin.; Exp. Alar 6—8 lin.) Ra. maculicollis. Leach MSS.—Steph. Catal. 314. No. 3531. Black, shining : head small, slightly punctured ; base of antenne and clypeus ochreous, the latter with two black dots beneath the antenne; collar dull tawny ochreous, with irregular black spots ; the lateral margins broadly ochreous-yellow ; abdomen with the edges of the segments pale yellow ; legs ochreous-yellow, with the base of the hinder femora, and a line on the others above, dusky or blackish; wings faintly tinged with yellowish, with the stigma concolorous ; nervures fuscescent. Taken at Darenth wood in June; also near Coombe wood, and in Devonshire. Sp. 6. confinis. Nigra, nitida, ore fulvo, collaris lateribus ochraceis, pedibus ochraceo-flavis, alis hyalinis, stigmate concolore, nervis fuscis. (Long. corp: 3 51m.; 27 lin.; Exp. Alar. 8—10 lin.) Ra. confinis. Steph. Catal. 314. No. 3532. Shining, black: mouth tawny, with a black dot; antenne ochreous at the base, and the sides of the collar the same; legs ochreous-yellow, with a dusky line on the upper edge of all the femora; abdomen with the margins 132 MANDIBULATA.—NEUROEFTERA. of the segments faintly yellowish ; wings hyaline, stigma the same and colourless ; nervures fuscous. Found in June, near London. Section V.—MEGALOPTERINA, Mae Leay. Antenne moderately long, setaceous, articulations numerous, rarely very distinct : palpi filiform or setaceous: labrum existed, trausverse, entire _ mandibles small: head rather large, sometimes depressed: eyes moderate : ocelli three, or wanting: ¢horax with its anterior segment, or collar, large, more or less quadrate: wings ample, deflexed or incumbent, posterior sometimes largest ; nervures distinct, frequently variable on the two sides - of the same individual : abdomen somewhat curved or elongate, occasionally furnished with two sete at its apex: legs longish and simple, sometimes compressed: farsi with five joints, and the last but one bifid, or with three joints and nearly simple. - The insects included in this section of the order differ considerably in habit from the remainder: they have in general longish setaceous antennee; the head broad,, mostly depressed, and more or less inflexed; are either destitute of ocelli, or have three placed in a triangle; their wings are ample, resemble .each other, are rather coarsely veined, the nervures occasionally differing in the same example: the anterior pair are sometimes largest; at others the posterior are most ample, and, although not longer, their surface is larger from their superior width: they are either deflexed or hori- zontally incumbent. ‘The following families are found in Britain :— Ocellis nullis: alis deflexis: . : : : : . 1. StaLipe. 3-bus, in triangulum dispositis: alis incumbentibus: - . 2. PERLIDZ. Famity I.—SIALIDA, Leach. Antenne inserted on the front of the head between the eyes, rather longer than the thorax, and composed of numerous simple articulations: mandibles small, horny, abruptly hooked at the tip, acute, toothless: palpi filiform ; maxillary long, four-jointed, labial 3-articulate, all with the terminal joint rather attenuated at the base and obtuse at the tip: head transverse, de- pressed, nutant, as broad as the thorax: ocelli wanting: wings of nearly equal size, posterior smallest, deflexed, coarsely but somewhat remotely reticulated, the anterior pair dilated at the base of the costa, and all destitute of a stigma: legs simple: ¢arsi five-jointed, with the penultimate joint bifid, heart-shaped. Larva elongate-conic, depressed, with six legs = SIALID.—SIALIS. 133 head large, somewhat orbiculate ; eyes moderate ; mandibles stout, curved ; antenne longish, somewhat setaceous, four-jointed; thorax triarticulate ; abdomen setose, tail conic ; legs long, setose; pupa folliculate. Of this family one genus only is indigenous, viz.— GrENus XXV.—SIALIS, Latreille. Antenne short, setaceous, composed of numerous simple joints, the basal one robust : palpi filiform, the basal joint somewhat elongate-cylindric: man- dibles small: head moderate, as wide as the thorax: eyes prominent: ocellz wanting: collar ample : meso= and meta- thorax both transverse, tubercular : wings deflexed during repose, all coarsely reticulated, anterior rather the largest ; nervures variable: legs shortish: tibie with two very short spurs at the apex: farsi five-jointed, the last joint but one bifid. Larva active, aquatic, elongate-conic, depressed, furnished with six elongate bristly legs, two somewhat longish four-jointed antenne, and stout curved mandibles ; the thorax is triarticulate, the abdomen furnished on each side of the seven first segments with a branchial appendage ; terminal segment elongate, conic, setose at the apex: pupa quiescent, reposing in a cocoon, removed. from the water. The insects of this genus have the wings deflexed, reticulated with strong nervures, which frequently vary in the two sides of the same individual ; the penultimate joint of the tarsi is bifid, and the insects are destitute of ocelli:—one indigenous species only is known, which frequents the borders of rivers, &c. Sp. 1. lutarius. Niger, obscurus, alis fuscis nervis nigris. (Long. corp. 4—7 lin. ; Exp. Alar. 9 lin.—1 une. 7 lin.) +Sp. 2. flavilatera. “ Alis reticulatis, caudé inermi thoracis lateribus flavis.”— Linné. Phry. flavilatera. Linné.—Berkenhout (!)—Steph. Catal. 321. No. 3684, note. Wings somewhat cinereous, reticulated; mnervures fuscous and closely reticulated, especially towards the outer margin, which is dilated; body wholly blackish ; antenne half the length of the body ; tail simple, without prominent styles; collar anteriorly and posteriorly yellowish. I have never seen a specimen of this insect: whether, therefore, this is its true location I am not prepared to say; but, from the above Linnean definition, such appears to be the case. This insect was introduced by Berkenhout amongst our indigenous species, but as no example has occurred in any of the numerous collections—above 250— that have fallen under my inspection, I conceive its introduction must originate in a mistake. . 134 MANDIBULATA.—NEUROPTERA. He.lutarius. Linne ?—Shaw, G. Z. v. vi. pl. 83. fig. inf.—Si. lutarius. Steph. Catal. 314. No. 3533. Dull, deep black: wings fuscous, with black nervures. The female lays a great quantity of brown conical eggs, on the leaves of aquatic plants, &c.: they are dispersed with great symmetry, and form large plates: the larva are very active, and swim well. Very abundant in the vicinity of London, especially on the banks of the Thames, in Battersea-fields, near Putney, Hammersmith, &c.: found also near Ripley and Hertford, in the north of England and Scotland ; also in Devonshire, near Dover, &c. Famity I1.—PERLIDA, Leach. Antenne remote, inserted before the eyes, setaceous, nearly as long as the body, consisting of very numerous short articulations, the basal one being largest : mandibles distinct : paipi exerted, inflexed, filiform or setaceous, maxillary longest, the former five-jointed: head as broad as, or broader than, the collar, somewhat trigonate, obtuse in front : eyes prominent, rather globose: ocelli three, placed in a triangle: collar flat, transverse-quadrate: wings incumbent, posterior generally largest, with longitudinal folds on their inner margin, nervose, twice as long as the abdomen, which is soft, depressed- cylindric, elongate, often furnished at the apex with two many-jointed sete at the apex: /egs compressed: tibie and tarsi elongate-cylindric, the latter three-jointed, short, the terminal joint longest and obconic. The insects included in this family have the wings incumbent during repose, but like those of the two foregoing families the reticulations frequently vary in the same specimen: the head is large; ocelli three in number, the abdomen frequently furnished with two articulate setae, and the tarsi are always simple: the insects frequent damp and marshy places. The indigenous species may be thus divided into genera :— Cauda setis 2-bus multiarticulatis instructa. Abdomen validum. Ale in utroque sexu consimiles: . . 27. IsoGENUS. dissimiles : : . 26. PERLa. subgracile : a ; 5 . - 28. CHLOROPERLA- niutica, Antennis gracilibus, articulis subindistinctis : . 29. NEMOURA. validioribus, articulis submoniliformibus: 30. LEucTRA. eN , PERLIDE.—PERLA. 135 Genus XXVI.—PERLA, Geoffroy. Anienne remote, inserted before the eyes at the base of the mandibles, about the length of the body, composed of numerous articulations, the basal one stoutest and large, second smaller, remainder decreasing in size to the apex: palpi unequal, subsetaceous, maxillary long, five-jointed; Jabial shorter, triarticulate, in all the terminal joint most slender: /abrum transverse, linear: head large, much depressed, transverse-ovate : eyes lateral, promi- nent: ocelli three: collar transverse-quadrate: meso- and meta- thorax unequal: wings dissimilar in the sexes ; of the male not so long as the body, of the females extending to the apex of the sete; anterior pair elongate- elliptic ; posterior shorter and broader, deeply incised on the outer edge: abdomen short, sessile, furnished at its apex with two long jointed sete: legs simple, longest in the males. The insects of this genus are usually of a large size, and the sexes are very dissimilar, the males (which is rather extraordinary) having the wings very much abbreviated ; their legs are also elongated, and their general habit is very dissimilar to the females, which have large expansive wings; the legs are rather shorter than in the males; both sexes have the palpi of dissimilar length, the maxillary ones being much longest, with the last joint slender, and the labrum is linear and somewhat tubercular in the middle. Sp. 1. marginata. Fusca, capitis maculis abdominis margine flavescentibus, - antennis corpore longioribus, thorace subtransverso. (Long. corp. ¢ 6—7 lin. ; 2 8—10 lin.; Exp. Alar. ¢ 9 lin.; 9 1 unc. 11 lin.—2 unc. 6 lin.) Pe. marginata. Fabricius.—Steph. Catal. 315. No. 3535. Fuscous: antenne as long as the body ; head moderate, black, varied with ‘yellow or ochreous, and with some glossy elevated spots ; thorax somewhat transverse, with the disc rugged, a longitudinal dorsal channel, having an elevated line on each side; abdomen more or less ochreous, or yellowish, on ‘its sides and towards the apex; sete as long as the antenne, yellowish, with fuscescent rings ; legs with the tibie and tarsi sometimes yellowish, or - dull ochreous ; wings fuscescent, with darker nervures, the fourth discoidal areolet of the posterior pair simple. Pupa pale fuscous, spotted with dusky. Variable both in size and in colour : in some examples, especially females, the head is ochreous, or yellowish, with two black frontal spots; the thorax is also occasionally varied with ochreous, and the legs are wholly of that colour :—in this state I suspect the insect is the Per. flavipes, Latreille, ‘Hist. Nat. Crust. &c. v. xiii. p. 49; and the larger specimens to be the Per* grandis, Curtis, fol. 190.—Steph. Catal. 314. No. 3534. 136 MANDIBULATA.—=NEUROFTERA. Not common in the metropolitan district: it has occurred near Sydenham, on the banks of the Croydon Canal; but in the north of England, and in several parts of Scotland, it appears to abound in June and the beginning of July: it is, in common with other species the genus, a favourite food of trout. Sp. 2. cephalotes. Fusca, capite lato ochraceo-maculato, thorace transverso- quadrato, rugoso, antennis setisque brevibus. (Long. corp. ¢ 5—6% lin.; 9 6—8lin.; Exp. Alar. ¢ 9 lin.; 9 1 unc. 10 lin.—2 une. 4 lin.) Pe. cephalotes. Curtis, v. iv. pl. 100.—Steph. Catal. 315. No. 3536. Fuscous, shining : head broader than the thorax, with its base and a transverse streak between the eyes ochreous ; thorax transverse-quadrate, rugged, with a central dorsal channel, having an elevated line on each side curved out- wards ; abdomen ochreous at the tip, of the females frequently entirely so; sete not so long as the antenne, which are rather short: wings fuscescent, with a greenish tinge in the females; nervures fuscous, the fourth discoidal areolet of the posterior pair mostly with two transverse nervures at the apex. Pupa fuscous. Found on the borders of the lakes in Cumberland and Westmore- land; also in Scotland in June; but I believe not within the metro- politan district. Sp. 3. bicaudata. Fusca, capite thoraceque lined longitudinal: fulva. (Long. corp. ¢ 8lin.; 9 5—7 lin.; Exp. Alar. ¢ 8 lin.; 2? 1 unc. 4—6 lin.) Ph. bicaudata. Linné.—Pe. bicaudata. Steph. Catal. 315. No. 3537. Fuscous: head with an irregular longitudinal tawny or orange streak behind ; thorax transverse, rugged, with a transverse impressed line in front, and a longitudinal channel, bordered on each side by a raised line, the space between which is tawny or orange, forming a longitudinal streak of that colour; abdomen ochreous beneath; sete nearly as long as the body, stoutish; antenne as long as the sete; wings fuscescent, with darker nervures. Var. 8. Pe. nervosa. Steph. Catal. 315. No. 3538.—With the wings broader, of a deeper hue, with very dark and distinct nervures. Found occasionally in June, on the banks of the Thames, near London, as at Fulham, Battersea, Hammersmith, &c.; also in the north of England and in Devonshire. Genus XXVII.—ISOGENUS, Newman. Antenne remote, slender, shorter than the body, composed of numerous remote articulations, the two basal joinis largest, the remainder gradually PERLID.£.—ISOGENUS.—CHLOROPERLA. 137 decreasing in size and length: palpi nearly equal, maxillary five-jointed, the two last joints short, more slender than the others; labial three- articulate, the apical joint very short and slender : Jabrum transverse, linear, rounded in front: head large, depressed, transverse-quadrate: eyes very prominent: ocelli three, placed triangularly: collar transverse: meso- and meta- thorax tubercular : wings alike in the sexes ; anterior elongate-elliptic, rounded at the apex, as long as the sete. From the circumstances of the sexes being similar in habit, by both possessing ample wings, I think Mr. Newman has acted judiciously in dividing this genus from the preceding, although in other respects the structure is very similar to that of Perlze; the insects are, however, of a more slender form, approximating to those of the following genus, likewise divided by Mr. Newman from Perla, but forming a beautifully-intermediate link in the chain of affinities : the palpi appear to be of nearly equal length, the labrum more rounded in front, and the antennez shorter than in Perla. Sp. 1. nubecula. Prate xxxi. f. 4.—Alis anticis sordidé hyalinis, nubecula costali ultra medium fused. (Long. corp. 73 lin.; Exp. Alar. 1 unc. 3—5 lin.) Is. nubecula. Ent. Mag. (Newman) v. i. p. 415.—Steph. Nomen. 2d edit. Appendix. Dark brown: head and thorax with a longitudinal ochreous line; anterior wings hyaline, slightly tinged with brown, and having a little oval cloud of a darker brown on the costal margin, situated about one-third of the distance from the tip towards the body; posterior wings beautifully hyaline, iridescent ; legs pale brown. ’ The oval cloud on the costa of the anterior wings is sometimes indistinct, as in the example figured. Mr. Newman, to whom I am indebted for this species, says that it is abundant in the neighbourhood of running waters in Herefordshire, Worcestershire, Nottinghamshire, &c. and is the favourite food of trout and grayling. GrENUs XXVIII—CHLOROPERLA, Newman MSS. Antenne remote, rather slender, as long as, or longer than, the body, composed. of numerous joints, the basal one large, the next smaller, the remainder gradually smaller and shorter: palpi dissimilar ; maxillary elongate, the two last joints most slender, the terminal one shortest; labial short, the apical joint short and slender: labrum small, linear, straight in front: head broad, considerably depressed: eyes prominent: collar ample, transverse- quadrate: meso- and meta- thorar unequal : wings ample, mostly tinged with Manpisutata, Vor. VI., Aucustr 151rn, 1836. s 138 MANDIBULATA —NEUROPTERA. greenish hues, anterior elongate and narrowish, posterior wider, with the hinder margin excised : abdomen slender, its apex furnished with two jointed sete: legs simple. Although there is not much structural dissimilarity between the ‘insects of this and of the two foregoing genera, yet, from their great diversity of habit, I perfectly coincide with Mr. Newman in removing them from Perla: the sexes are alike, and all the species are more or less distinguished by having the wings tinted with yellowish- or ochreous-green ; the nervures are fewer in number, and much less distinct than in Perla or Isogenus; the insects are of a more slender form, &c. A. Anterior wings with four discoidal areolets, the third and fourth with numerous transverse nervures. Sp. 1. fuscipennis. Ochraceo-viridis, abdominis dorso oculisque nigris, alis sub- fuscescentibus, venis saturatiortbus. (Long. corp. 43 lin.; Exp. Alar. 1 unc. $—1 lin.) Pe. fuscipennis. Curtis?—Steph. Catal. 315. No. 3539. Ochreous-green: eyes and ocelli black; sides of the collar somewhat dusky ; abdomen above black, its sides and beneath ochreous-green ; legs yellowish- green; wings slightly fuscescent, with a greenish tinge, the nervures darker. Found in the north of England and in Scotland, in June. Sp. 2. lateralis. Ochraceo-viridis, oculis atris, thoracis lateribus, abdominisque dorso nigris, pedibus flavescentibus fuscescente sublineatis. (Long. corp. 4— 43 lin.; Exp. Alar. 9—13 lin.) Pe. lutea. Steph. Catal. 315. No. 3540.—Pe. viridis. Curtis, fo. 190.—Pe. la- teralis. Steph. Nomen. 2d edit. Appendix. Ochreous-green: eyes and ocelli black; thorax, or rather the collar, with a broad black margin ; abdomen black above, the base of the ventral segments dusky ; legs yellowish-green, with faint fuscescent streaks; antenne dusky at the apex ; wings greenish-yellow, with concolorous nervures. Not uncommon within the metropolitan district, especially in the vicinity of Ripley, in Walsham-meadows, in June ; also found in the New Forest, and abundantly near Leominster. Sp- 3. media. Virescente-flava, oculis atris, abdominis dorso, mesothorace posticé metathoraceque nigris, alis viridi-flavescentibus. (Long. corp. 4—4¢ lin. ; Exp. Alar. 10—12 lin.) Pe. media. Curtis ?—Steph. Catal. 315. No. 3541. PERLIDZ.—CHLOROPERLA. 139 Greenish-yellow: eyes and ocelli black: sides of the collar obscurely fuscescent ; mesothorax behind and metathorax black; abdomen black above; legs greenish-yellow, with a dusky streak on the femora; wings pale greenish-yellow, nervures darker. Taken near Darenth wood in June, and in Westmoreland. Sp. 4. venosa. Rufescente-ochracea, oculis atris, collaris lateribus abdominisque dorso nigris, alis flavescente-viridibus nervis fuscescentibus. (Long. corp. 41 lin.; Exp. Alar. 114 lin.) Pe. venosa. Steph. Catal. 315. No. 3542. Reddish-ochre, with a greenish tinge: eyes and ocelli black; collar with its lateral margins broadly black ; abdomen black above, its sides ochreous- green ; legs greenish ochre ; antennze dusky, ochreous at the base; wings yellowish-green, with fuscescent nervures. Found in June, near London. Sp. 5. rufescens. Ochraceo-rufescens, oculis, lineis 2-abus collaris, abdominisque dorso nigris, alis subflavescentibus nervis concoloribus. (Long. corp, 4—4¥ lin. ; Exp. Alar. 11—13 lin.) Pe. rufescens. Steph. Nomen. 2d edit. col. 117. Reddish ochre: eyes and ocelli black; collar with two longitudinal black streaks ; abdomen black above, its sides ochreous, and the base of the ventral segments dusky ; legs reddish ochre, with a green tinge; wings pale yellowish, with a reddish hue, the nervures darker, but concolorous ; antenne dusky at the tip. Also taken near London, in June. B. Anterior wings with three discoidal areolets, the third with few (2-4) inequidistant transverse nervures. Sp. 6. flava. Ochraceo-viridis, antennis apice oculisque atris, alis subflavescente= viridibus, (Long. corp 143—23 lin.; Exp. Alar. 6—7} lin.) Se. flava. Four. Ent. Par. ii. p. 349.—Se. viridis. Fabricius.—Pe, viridis. Steph. Catal. 315. No. 3543. Ochreous-green: antenne black at the tip ; eyes and ocelli black ; collar with a faint broad dusky margin ; abdomen green, with a blackish streak above ; legs greenish immaculate; wings faintly tinged with yellowish-green, with darker concolorous nervures, the latter few in number ; caudal sete pale. Apparently not very common: found occasionally near London, but more abundantly in Westmoreland and in Carnarvonshire in June, and especially at Leominster. Sp. 7. pallida. Pallide rufescente-ochracea, oculis atris, alis hyalinis limpidis, nervis subochraceo-virescentibus. (Long. corp. 2 lin.; Exp. Alar. 6 lin.) Pe. pallida. Steph. Catal. 315. No. 3544. s2 140 MANDIBULATA.—NEUROPTERA. Pale reddish ochreous: eyes and ocelli deep black; collar and abdomer immaculate ; legs pale ochreous green; antenne the same, dusky at the apex; caudal sete pale ; wings hyaline, limpid, with an almost evanescent tinge of yellowish-green, the nervures pale ochreous-green. Found near London, in June. Genus XXIX.—NEMOURA, Latreille. Antenne setaceous, remote, placed before the eyes, and composed of numerous very short cylindric articulations, the basal one being largest : palpi filiform, with the terminal joint oval-cylindric: labrum distinct, semi- circular or subquadrate, rather broader than long, rounded anteriorly and on the sides: head rather broad, nearly vertical, not depressed: eyes small, lateral: collar transverse-quadrate: wings incumbent during repose, some- what folded round the body, and giving it a cylindric form: abdomen with two extremely short tubercular processes at the apex, but destitute of setz : legs simple: femora slightly compressed: t¢a7si with all the joints simple, and of nearly equal length. These insects may be readily distinguished from those of the fore- going genera by wanting the elongated reticulated sete at the apex of the abdomen, without taking other characters into consideration : from the genus Leuctra they differ in having the anterior wings more rounded, and furnished with a plexus of nervures towards the apex, resembling a Greek x; and the nervures themselves are differently disposed. In common with the other genera of this family, these insects are found in damp and marshy places, during the summer. A. Anterior wings with a y-like plexus of nervures towards the apex; the hinder margin with six longitudinal nerves. Sp. 1. nebulosa. Fusco-nigra, collaris lateribus rufo-piceis, pedibus pallide rufescentibus femoribus posticis annulo obscuro, alis cinereis nervis fuscis. (Long. corp. 23—35 lin.; Exp. Alar. 9—103 lin.) Ph. nebulosa. Linné 2—Steph. Catal. 315. No. 3545. Fuscous-black : sides of the collar somewhat pitchy-red ; legs pale reddish, the hinder femora with an obscure blackish ring towards the apex; wings dull ashy-brown, with darker nervures. This insect is the Ne. nebulosa of Latreille, but I suspect not of Linneus 5 his insect I believe to be Ne. variegata. Abundant in damp hedges within the metropolitan district, espe- cially in Robin Hood lane, near Coombe wood: found also, not un- commonly, in the north of England, and in Scotland, and also in the New Forest, in June. PERLIDZ. —NEMOURA. 141 Sp. 2. fuliginosa. Fusco-nigra, capite posticé, coliaris lateribus, pedibusque fusco rufescentibus, alis fuscescentibus venis fuscis. (Long. corp. 2—3 lin.; Exp. | Alar. 83—10 lin.) Ne. fuliginosa. Steph. Catal. 315. No. 3546. Brown-black: head and sides of the neck dull reddish-brown: legs pale reddish-brown, the hinder femora with a very obscure blackish spot towards the apex above ; wings brownish, with fuscous nervures. Probably a suffused variety of the preceding species. Also not uncommon in the vicinity of the metropolis in damp places in June. Sp. 3. pallida. Pallide fusco-rufescens, oculis, meso- et meta- thoracis dorso, geniculis intermediis, abdomineque fusco-nigris, alis hyalinis, pallidis, nervis fuscescentibus. (Long. corp. 33 lin.; Exp. Alar. 10% lin.) Ne. pallida. Steph. Catal. 315. No. 3547. Pale reddish-brown, shining: eyes black; meso- and meta- thorax above blackish ; abdomen brown-black ; legs pale reddish-brown, the intermediate femora blackish at the tips; wings hyaline, pale, with slightly fuscous nervures ; antenne reddish at the base. Found within the metropolitan district, in June. Sp. 4. cruciata. Fusco-nigra, collaris lateribus piceo-rufescentibus, pedibus pallide rufescentibus tibiis tarsisque intermedits piceo-nigris, alis fuscescentibus eruce nervisque saturatioribus. (Long. corp. 2}—3$ lin. ; Exp. Alar. 9—104 lin.) Ne. cruciata. Steph. Catal. 315. No. 3548. Brown-black : labrum pale reddish ; sides of the collar pitchy-reddish ; anterior and posterior legs pale reddish, intermediate femora the same, their hinder sides and their tibie and tarsi pitchy-black; antenne long and slender, pitchy-black, the basal joint reddish beneath; wings fuscescent, the nervures fuscous, the transverse ones towards the apex broadly edged with the same colour, and forming a brown x. Not uncommon, in June, within the metropolitan district ; also found in Scotland. Sp. 5. affinis. Fusco-nigra, collaris marginibus rufescentibus, pedibus anticis piceo-nigris posteriorzbus pallide rufis, alis cinerascentibus cruce fuscd, nervis subfuscescentibus. (Long. corp. 2—3 lin.; Exp. Alar. 9—10 lin.) Ne. affinis. Steph. Catal. 315. No. 3549. Brown-black: margins of the collar reddish; anterior pair of legs pitchy- black, two hinder pair pale red; wings ashy, with the nervures somewhat fuscescent, the transverse ones darker, and forming an obscure x. Also taken near London, in June. 142 MANDIBULATA.—NEUROPTERA. Sp. 6. pusilla. Fusco-nigra, collaris lateribus pedibusque pallide rufescentibus, alis hyalinis pallidis, nervis subfuscescentibus, capite lato, antennis gracilibus. (Long. corp. 2 lin.; Exp. Alar. 63 lin.) Ne. pusilla. Steph. Catal. 315. No. 3550. Pitchy-black : head very broad ; collar with its lateral margins pale reddish ; legs pale reddish, the femora slightly tinged with piceous; wings hyaline, pale, the nervures slightly fuscescent, the transverse ones darker, and forming an oblique line ; antenne very slender, and rather long. Found in the vicinity of London, in June. Sp. 7. annulata. Rufo-fusca, nigro variegata, pedibus pallide rufescentibus: femoribus posticis annulo obscuro fusco, alis fusco-cinereis, nervis fuscis. (Long. corp. 3 lin.; Exp. Alar. 9 lin.) Ne. annulata. Steph. Catal. 315. No. 3551. Dull red-brown: eyes black; middle of the collar brown-black ; meso- and meta- thorax varied with the same, and the back of the abdomen also brown-black ; legs pale reddish, the hinder femora with an obscure fuscous. ring near the apex ; wings pale ashy-brown, with fuscous nervures ; antenne rather long and slender, dusky at the apex. Not uncommon in the neighbourhood of Hertford in June, fre- quenting marshy districts. Sp. 8. pallipes. Pzceo-brunnea, nitida, pedibus pallidis, alis hyalinis subcinereis, nervis pallidis, antennis subpilosis. (Long. corp. 13 lin.; Exp. Alar. 53 lin.) Ne. pallipes. Steph. Catal. 315. No. 3552. Pitchy-brown, very shining: legs pale; wings hyaline, somewhat ashy, with pale nervures ; antenne slightly pilose. Found at Coombe wood, in June. Sp. 9. luteicornis. Migro-picea, nitida, labro, capite posticé, collaris lateribus, pedibusque rufescentibus, alis pallide cinereis, nervis pallidis, antennis gracilibus pallide luteis. (Long. corp. 23—3 lin.; Exp. Alar. 9—10 lin.) Ne. luteicornis. Steph. Catal. 315. No. 3553. . Shining, pitchy-black : labrum, head behind, and sides of the collar, reddish ; legs pale reddish; wings slightly cinereous, with pale nervures; antenne slender, pale luteous. One of my specimens is very remarkable for the extraordinary dissimilarity of its antenne, the right one is slender, with rather indistinct short joints, and of the usual length; the other is about half the length, and composed of about 10 rather elongate subclavate joints, the terminal one being largest, compressed and truncate, forming a kind of club! Found in the marshes near Hertford, in the beginning of June. PERLIDE.—NEMOURA. 143 Sp. 10. pallicornis. Nigro-=picea, nitida, antennis elongatis pedibusque pallidis, alis subfusco-cinereis, nervis fuscis. (Long. corp. 23 lin.; Exp. Alar. 92 lin.) Ne. pallicornis. Steph. Catal. 315. No. 3554. Shining, pitchy-black: antenne elongate, slender, pale; legs pale; wings somewhat of a fuscous ash, with fuscous nervures. Also found in the vicinity of Hertford, in June. Sp. 11. nitida. Piceo-fusca, nitida, antennis gracilibus elongatis nigris, pedibus pallido-rufis ; alis angustis hyalinis, nervis pallidis. (Long. corp. 24—3 lin. ; Exp. Alar. 93 lin.) Ne. nitida. Steph. Cutal. 315. No. 3555. Shining, pitchy-brown: antenne long and slender, black; legs pale red ; wings narrow, hyaline, nervures pale. The legs are sometimes pitchy towards the apex of the femora and of the tarsi. Not uncommon, in the vicinity of Hertford and at Ripley, at the end of June and beginning of July. Sp. 12. Cambrica. Piceo-nigra, collare rugoso, mesothoracis lateribus pedibusque rufescentibus, alis fuscescentibus, nervis brunneis. (Long. corp. 2 lin.; Exp. Alar. 9% lin.) Ne. Cambrica. Steph. Nomen. 2d edit. col. 118. Pitchy-black, shining: collar rugged; sides of the mesothorax reddish ; legs pale reddish; wings long, narrow, fuscescent, with strong dark brown nervures ; autenne short, black. Found at South Wales, near Swansea, in October, by L. W. Dillwyn, Esq. Sp. 13. sulcicollis. Nigra, nitida, pedibus piceis, collare rugoso, sulco dorsal, alis fuscescentibus, nervis saturatiortbus. (Long. corp. 23 lin.; Exp. Alar. 3—74 lin.) Ne. sulcicollis. Steph. Catal. 315. No. 3556. Deep shining black: collar rugged, with a dorsal channel ; legs pitchy ; tibize sometimes pale reddish ; antennz short, black; wings narrow, fuscescent, with darker nervures, and sometimes the transverse ones towards the apex bordered with fuscous, and forming a dark x. Also found near Hertford and Ripley, in June and July, not uncommonly. Sp. 14. fumosa. Aira, nitidissima, abdomine tibiisque rufo-picers, alis fusces- centibus nervis saturatioribus. (Long. corp. 1:—13 lin.; Exp. Alar. 5—63 lin.) Ne. fumosa. Steph. Catal. 315. No. 3557. 144 MANDIBULATA.—NEUROPTERA. Very glossy, deep black: collar slightly wrinkled; abdomen pitchy-red ; femora pitchy-black ; tibize pitchy-red ; tarsi black; wings brownish, with darker nervures, the transverse ones towards the apex bordered with dusky. Antenne sometimes pitchy at the base. Common at Ripley, in June and July ; also found in Scotland. » B. Anterior wings destitute of a y-like plexus of nervures; hinder margin with nine longitudinal nervures. Sp. 15. variegata. PLateE xxxi. f. 2.—Fusco-nigra, collare pedibusque rufis nigro variis, alis pallide cinereis fasctis 2-bus fuscescentibus. (Long. corp. 4lin.; Exp. Alar. 11 lin.) Ne. variegata. Steph. Catal. 316. No. 3558. Head and antennz deep black, the former rather small; collar pale red, slightly clouded on the disc with blackish ; meso- and meta- thorax black ; abdomen pitchy above, dusky beneath ; legs pale red; coxe ochreous, tip of the femora black ; apex and tip of the tibie, and a line on their inner edge, as well as the tarsi, black; wings long and narrow, with numerous nervures, pale ashy, with two or three transverse fuscous streaks ; nervures also fuscous ; posterior wings fuscescent, especially at the apex. I suspect this insect is the true Phryganea nebulosa of Linnzeus. Apparently rare: my specimen occurred near Hertford in June. Gexus XXX.—LEUCTRA, Stephens. Antenne placed somewhat remotely in front beneath the eyes, somewhat moniliform and pilose, or setaceous and simple, with distinct joints; in all the basal joint robust, the 2nd slightly smaller: labrum transverse, rounded in front: palpi with the terminal joint a little acute: head large and depressed, or small and inflexed: eyes moderate, prominent: ocelli3: collar more or less quadrate, longitudinally sulcate and rugose: wings incumbent during repose; anterior elongate, somewhat acuminate, the transverse nervures placed rectangularly about the middle of the costa, and not forming a x-like mark by the union with the longitudinal ones; posterior pair shorter, narrower, acuminated, and incised’ on the outer margin: abdomen somewhat linear-elongate, the apex not furnished with jointed sete: legs rather slender, simple: femora and tbie slightly compressed and striated : tarsi with the intermediate joint slightly produced beneath. The great dissimilarity of the neuration of the wings of the insects included in this genus from those of the foregoing—as exhibited in Plate xxxi. figs. 2 and 3—sufficiently indicate their distinction ; _ these organs are also more elongate and acuminated at the apex, the anterior pair are narrower; the head smaller, the antennz more distinctly articulated, &c. PERLIDE.—LEUCTRA. 145 A. Antenne somewhat moniliform, each joint producing a whorl of hairs on both sides: head broad, depressed. Sp. 1. geniculata. Puate xxxi. f. 3.—Nigro-picea, capite rufo-piceo, nigro vario, abdomine supra rufo-piceo, lateribus nigris, pedibus pallide brunneis, Jemoribus posterioribus annulo nigro, antennis pallide rufis, pilosis. (Long. corp. 3—33 lin.; Exp. Alar. 9—10$ lin.) . Le. geniculata. Steph. Nomen. 2d edit. col. 118.—N. G. (548). geniculata. Steph. Catal. 316. No. 3561. Pitchy-black : head pitchy-red, with the eyes, ocelli, and some frontal marks black ; collar with the sides straight, the disc rugose, and with three dorsal channels ; mesothorax pitchy-red in front; abdomen above pitchy-red, its sides and beneath black; legs pale brown, the four hinder femora with a _ blackish rmg near the apex; tips of the tibie and of the tarsal joints blackish; antenne pale pitchy-red, the articulations very distinct, each producing a whorl of blackish hairs on each side ; wings pale fuscous, with darker nervures. ' Apparently rare: taken occasionally within the metropolitan district in June ; also in the New Forest and in Scotland. B. Antenne slender and pilose: head small. Sp. 2. fusciventris. Fusco-nigra, collaris lateribus rotundatis, ano piceo, pedibus pallide rufo-piceis, tarsis nigris. (Long. corp. 23 lin.; Exp. Alar. 74 lin.) Ne. fusciventris. Steph. Catal. 316. No. 3559. Brown-black: collar with a longitudinal and two nearly parallel dorsal channels, the rest of the surface rugose ; abdomen fuscous, with the apex pitchy ; legs pale pitchy-red, with blackish tarsi ; palpi and antenne black ; wings fuscescent, with darker nervures, the edges of some of the costal nervures fuscous. Found, in June, near Hertford: not common. Sp. 3. abdominalis. Piceo-nigra, collare quadrato, ore pedibusque pallide ochraceo-rufis, tarsis nigricantibus, abdomine pallide rufo, maculis lateralibus strigaque ventrali piceo-nigris. (Long. corp. 3 lin. ; Exp. Alar. 8—93 lin.) Ne. abdominalis. Steph. Catal. 316. No. 3560. Pitchy-black: mouth pale red; collar nearly quadrate, its surface rugose, with five longitudinal dorsal channels, the two outer ones, on each side, placed obliquely ; abdomen pale red, with a row of black spots on each side, and a broad streak of black beneath ; legs pale ochreous-red, the tips of the hinder femora and the tarsi blackish; wings fuscescent, the nervures darker, with a fuscescent shade on each side, the apex of the costa the same ; antennz black. ‘Also found occasionally at Hertford, in June and July. Manprpurata, Vor. VI., Aucust 15TH, 1836. rE 146 MANDIBULATA.—TRICHOPTERA. Orner V.—TRICHOPTERA, Kirby. Wings all membranaceous, much deflexed, anterior pair more or less pilose, posterior sometimes folded, all furnished with more or less branching nervures, and very few transverse ones: mouth with merely rudimentary mandibles: palpi four, dissimilar, maxillary occasionally long, labial short, sometimes nearly wanting: mazille and labium membranaceous: body more or less hairy: head small, transverse, vertical, flat above: eyes moderate, semiglobose, prominent: ocelli two, frontal: collar small, transverse: abdomen compressed-cylindric, not furnished with sete at the apex: legs slender, core elongate, tibie armed, in general, with two, three, or four long spurs, sometimes spinulose : ¢arsz elongate, five-jointed, cylindric, furnished with two small claws, and an intermediate cushion. Metamorphosis incom-= plete: larva aquatic, hexapod, active, elongate, subcylindrical, slightly pilose ; head corneous, three following segments coriaceous, each having a pair of legs; next frequently dilated and papillose, remainder variable, being sometimes furnished with exserted branchial organs, and occasionally with two caudal appendages: they mostly reside in a cylindric tube, lined within with silk, and clothed without with various materials, according to the groups to which they belong, as hereafter particularized: pupa quiescent, being shut up in the case of the larve ; it somewhat resembles the imago, the limbs, &c. being distinct. The eggs are deposited in a gelatinous mass. The insects included in this order are generally known by the name of Case- or Caddice-flies, Water-moths, &c. In their larva state they frequent running streams, lakes, ponds, &c. some species preferring nearly stagnant waters, others the impetuous torrents of mountain- streams, &c.: they are consequently always to be found in marshy districts, and usually make their appearance during the summer months, though some few species do not occur till the autumn: in general habit they greatly resemble each other, and from the almost total uniformity of colouring that obtains amongst them, they are extremely difficult to divide specifically from each other: never- theless, by a careful attention, sufficiently powerful characters of distinction may be detected, not only in the colouring, but also in the neuration of the wings. Continental naturalists almost universally agree in placing these insects as a great section of the Neuroptera, in which respect they have been partially followed in Britain, but I conceive their characters, especially those drawn from their wings, which are pilose, and have branching nervures, like the Lepidoptera, are unlike any of the true Neuroptera: their coxz and legs are also ote TRICHOPTERA. 147 constructed on the model of those of the Lepidoptera, and their general habit is towards those insects; their mandibles likewise are nearly obliterated, the collar is narrow and transverse, &c. But few writers have attended to these insects, the admirable Treatise of M. Pictet on the Phryganez of Switzerland being almost the only guide towards their classification, &c., and from that work I have extracted the two following tables,* showing the dissimilarities in the larvee, and also some external characters of the imago :— Larve with a case, opening with a round hole ; segments of the thorax rounded ; eaternal respiratory organs isolated, /egs moderately long: PHRYGANEA. in tufts 3 hinder legs long: MysTactipE. short: SERICOSTOMA. segments with the anterior angles pointed : : TRICHOSTOMA. with a case, opening by a cleft : : . . HyYyDROPTILA. without a case ; Pupa with a double envelope: ° RHYACOPHILA. single envelope: “e : HyDRoPsYCHE. Imago. Posterior wings folded ; with transverse nervures. Mazillary palpi moderate and slightly hairy: PHRYGANEA. long and hairy : a MYSTACIDE. without transverse nervures. Mazillary palpi different in the sexes ; of the male clavate: . TRICHOSTOMA. forming a rounded face : ; SERICOSTOMA. — alike in the sexes ; last joint ovate: . RHYACOPHILA. filiform : HyDROPSYCHE. not folded. Anienne setaceous : : 0 : PsycHOMIA. filiform : 5 ° c HYyDROPTILA. "In the 4th volume of the New Series of the Philosophical Magazine— published in February and March, 1834—are short descriptive notices of some of the indigenous Trichoptera, by Mr. Curtis, whose names I have endea- voured to assimilate with my own previously published ones (1829), and with those of M. Pictet; but it is to be regretted that these descriptions have appeared in a work not devoted to the subject, and consequently rarely seen by entomologists, as the result has been that, from the almost simultaneous appearance of M. Pictet’s splendid work on this order (July, 1834), the 148 MANDIBULATA.—TRICHOPTERA. From these tables it is manifest that considerable diversity occurs amongst the insects of this order, not only in the larva, but in the imago states. Pictet regards the above groups as genera only, but I think the generality of them bear a higher designation, and may probably be nearly equivalent to families; as such, in the present state of our knowledge of the Trichoptera, I shall consider them; and I have endeavoured to characterize them by a slight modification of the above tables, whereby I have reduced the anomaly resulting from taking characters peculiar to the sexes, as employed by Pictet, in some of his groups :— Pedes haud calcaribus instructis : = ‘ : . I. ACENTROPIDA. calcaribus instructis ; Antenne filiformes, aut pectinate : . é - 2, HyDROPTILIDA. setacee $ Ale postice haud plicati : ° 2 : . 6. PsycHomiDz. plicati ; antice nervis transversalibus 3 Palpi mazillares, mediocres, subhirsuti : - §. PHRYGANIDE. elongati, hirsutissimi : . g LEPTOCERIDA. antice nervis transversalibus feré destitutis ; Palpi mazillares articulo ultimo elongato, filiformi: 3 < brevi, ovato; arti°. 2-do elongato : : cs -. HYDROPSYCHID&. . SERICOSTOMIDA. - RHYACOPHILID®. oo or brevissimo: . Famity .—ACENTROPID 4 mihi. Antenne nearly setaceous, remote, short: mazillury palpi drooping, 3-jointed, labial wanting: head and thorax clothed with scale-like hairs, the latter furnished on its sides with a pair of petagie, or tippets: wings deflexed, anterior acute, posterior ovate, furnished with a connecting bristle at the base: abdomen rather elongate: /egs moderate ; femora and tibie shortish, of nearly equal length, the latter not furnished with spurs: tarsi 5-jointed. nomenclature of the species has been greatly embarrassed, many of Pictet’s insects being synonymous with the indigenous ones, and thus in repeated instances a third name has been imposed on the same species; and an additional inconvenience arises from the names of Mr. Curtis’s insects occurring in a _ miscellaneous work, as before referred to, while those of Pictet appear in a work expressly devoted to the subject, and will consequently be more generally employed, although not strictly having the priority. ACENTROPID. 149 This anomalous family may be instantly recognized from the genuine Trichoptera by having the legs wholly destitute of spurs, in addition to the very peculiar neuration of its wings, all of which have a long discoidal areolet, from which a radiating series of nervures springs, the nervures extending to the costal and hinder margins ; but another great peculiarity apparent is the thorax being furnished with regular tippets, as in the Lepidoptera, and which circumstance, combined with the scale-like clothing of its wings, their structure, the bristle at the base of the hinder pair, the squamous head, &c. appear to warrant its removal to that order of insects, as suggested by Mr. Westwood, in the Entomological Transactions, v. 1. p. 118; but amongst which group can it be located? I am not aware of any genus of the Tineide (the only family to which it can possibly be allied) that is destitute of spurs* on the four hinder tibiz : its * The absence of tibial spurs in the genus which forms the type of this family—Acentria of my Catalogue—induced me to arrange it with the Neuroptera, in which order these appendages are almost universally deficient, or are extremely minute, even in the gigantic species, while they are as invariably present both in the Lepidoptera and Trichoptera, although various modifications, both in form and number, occur. If I am correct in my reference to Olivier, through Latreille, both those writers place Acentria (now Acentropus) in the genus Phryganea (or Trichopterous division of the Neu- roptera) in which they are followed by Mr. Curtis, who places it, without question, in the family Phryganide, notwithstanding its total want of spurs, whereas the insects included in that family have those organs fully developed, and have, moreover, the tibiz and tarsi more or less armed with rigid spines, while in Acentropus they are perfectly simple! the neuration of the wings is also wholly dissimilar, as is also the structure of the mouth, &c. ; the posterior wings are not folded, &c. In the “ Naturalist,’ published on the Ist inst. vol. i. p. 14, Mr. Dale has some remarks on the genus Acentropus, in which, after defending Mr. Curtis's assumed ignorance of its identity with Acentria,t he justifies its removal from the Neuroptera, and appears to conceive its location to be perfectly natural between Hydroptila and Papilio!!! and he exults in the fact that Messrs. Curtis and Westwood consider that I did wrong in placing it in the Neuroptera! But this last writer and myself are of opinion that Mr. Curtis is equally in error by placing it with the Trichoptera. t A point I am disposed to controvert, inasmuch as Mr. Curtis, in naming his insects from my collection, had the opportunity of seeing the insect dozens 150 MANDIBULATA.—TRICHOPTERA. metamorphoses are yet unknown; but, when detected, its location will then become evident: for the present, therefore, having com- pleted the Lepidoptera, I shall temporarily remove it to this side of the line of demarcation, and consider it as referrible to this order, rather than omit all notice of this smgular family. Genus I—ACENTROPUS, Curtis. Antenne slightly pubescent, inserted close to the eyes, shorter than the body: labrum elongate: mazillary palpi large, curved, densely clothed with scaly hairs: head somewhat globose: eyes globose, lateral: ocelli two: wings dissimilar, anterior with a long discoidal areolet, with numerous radiating nervures, which extend to the costal and hinder margins ; posterior smaller, with similar nervures, all furnished with scale-like cilia: abdomen attenuated, its apex terminated by a curved hairy lobe and two pilose appendages ; in the female simple and acute. The chief peculiarities of this genus have been already pointed out in the observations upon the family: one species only appears to be known, which seems to frequent marshy places. Sp. 1. niveus. Pallide rufo-ochraceus, capite thoraceque canescentibus, alis sericeo-niveis, oculis atris. (Long. corp. 23—3 lin.; Exp. Alar. 6—7Z lin.) Phr. nivea. Olivier teste Latreille—Acentria nivosa. Steph. Catal. 316. No. 3562 °.—Zancle Hansoni. Steph. Nomen. 2d edit. col. 118 *.—Acentropus Garnonsii. Curtis, v. xi. pl. 497, var. Pale reddish-ochre: eyes black; head and thorax clothed with short white and greyish scales ; tippets whitish ; abdomen ochreous above, dotted with white scales beneath; wings glossy snow-white. The anterior wings have sometimes the costa and hinder margin more or less of a bright tawny-ochreous. Brief as Latreille’s definition of the Phry. nivea of Olivier is, I believe this to be that insect. Latreille says, ‘‘ Blanche; ailes ciliées; partie supérieure de l’'abdomen obscure.” —Hist. Nat. Crust. &c. v. xiii. p. 93. Found on willows near the Croydon Canal, by Greenwich, in June; also by Dr. Leach, in Scotland; Mr. Hanson, near Reading, in of times, and he has appended to his account the localities which J furnished him with many years since; and Mr. Dale, upon a visit to me of some days, when he had the uncontrolled range of my cabinets during my unavoidable absence from home, must have noticed so remarkable an insect, which remains to this moment in the actual position it occupied in the drawer in 1826, the period of his sojourn at my residence. HYDROPTILID£.—HYDROPTILA. 151 Berkshire; and by the Rev. W. L. P. Garnons, at Layer Murney, near Colchester, in Essex. Famity II1.—HYDROPTILIDA mihi. Antenne filiform, very short, not very remote: maxillary palpi 5-jointed, some- what pointed; labial minute: head and thorax densely clothed with woolly hairs : wings narrow, acute, or obtuse; nervures obscure, radiating, with no discoidal areolet: abdomen short or moderate: legs shortish ; four posterior dibie furnished with spurs at the apex and in the middle: ¢arsi 5-jointed. Larva residing in a flat kidney-shaped case, opening at each extremity by a simple cleft, and composed of silk and a few grains of sand ; the larva itself has the head and the three anterior segments narrow, the abdominal seg- ments considerably dilated, and destitute of external respiratory organs ; the legs are short: they undergo their metamorphoses in the case, by closing it and fixing it on a stone. The pretty little tineiform insects included in this family are dis- tinguished by having very short filiform antenne, which are either perfectly simple, or strongly pectinated: the wings are long, narrow, and acute, ciliated rather densely at the apex, and in the typical genus along the costa and inner margins; the four hinder tibize are armed with spurs. ‘Three genera occur in Britain, thus simply cha- racterized :— Antennis simplicibus, haud pectinatis ; Tibiis intermediis 2-calcaratis : é . 2. HYDROPTILA. l-calcaratis : 3 - 2. AGRAYLEA. pectinatis : . * : . : - 3d NaRYCIA. Genus II—HYDROPTILA, Dalman. Antenne sensibly thickened towards the apex, which is obtuse: maxillary palpi with the articulations of nearly equal length, the terminal joint ovoid : head small: eyes small, lateral: collar and thorax ovate: wings narrow, acute, densely pilose, and ciliated on the margins, with few very indistinct nervures ; posterior pair similar, not folded : abdomen short, slender, obtuse in the males, acute in the females : /egs moderate, intermediate and posterior tibie furnished with two pair of long spurs. From Narycia this genus differs by having the antennz perfectly simple, the anterior wings narrow, acute at the apex, densely ciliated on the costal and inner margins, and on the apex; the palpi are rather long and slender: the insects are of small size, and the species resemble each other considerably in bulk, colour, and habit: they are very active and nimble, and fly in the evening. 152 MANDIBULATA.—TRICHOFTERA: Sp. 1. tineoides. - Fusca, capite antennis pedibusque pallidis, alis fuscis, anticis fasctis duabus punctoque apicali albis. (Long. corp. 1} lin.; Exp. Alar. 25— 3 lin.) Hyd. tineoides. Dalman.—Steph. Catal. 317. No. 3579. Fuscous: crown white, forehead and eyes black; antenne pale, glossy, the apex dusky ; thorax griseous, pilose; abdomen pale and shining; wings very pilose, anterior with two parallel, somewhat remote, pale or whitish transverse fasciz, the basal one sometimes interrupted, with an obscure dot of the same hue between them, and a distinct one on the apex: legs pale. Common, from the middle of June till towards the end of August, at Hertford. Sp. 2. brunneicornis. Nigra, fronte albd, antennis flavo-brunnets apice nigro, alis canescentibus, anticorum marginibus albo nigroque punctatis. (Long. corp. 1 lin.; Exp. Alar. 23—3 Jin.) Hyd. marginata. Steph. Catal. 317. No. 3580.—Hyd. brunneicornis. Pictet, p- 226. pl. xx. f. 12. Black: head with a white spot between the antenne, the latter yellowish- brown, with the tip black ; anterior wings grey-brown, edged with black and dotted, on the margins especially, with white, forming three faint bands of this colour ; posterior wings pale fuscous, or grey- Taken, occasionally, near London, in June. Sp. 3. sparsa. Fusco-nigra, fronte canescente, antennis pedibusque fulvis, alis anticis marginibus albo niveoque punctatis. (Long. corp. 13 lin.; Exp. Alar. 3 lin.) Hyd. sparsa. Phil. Mag. (Curtis) v.iv. p.217.—Steph. Nomen. 2d edit. Appendix. « Fuscous black: antenne and legs fulvous ; head grey ; anterior wings with a silvery white spot on the middle of the costa, another opposite, the margin between this and the base with an interrupted whitish line, and several minute dots of the same colour at the apex. ’—Curtis, I. c. Found in June, near Hertford. Sp. 4. Vectis. Fusca, fronte albida, alis anticis fascia media angulata punctisque variis ochraceis, ventre pedibusque argenteo micantibus. (Long. corp. 1% lin. ; Exp. Alar. 33 lin.) Hyd. Vectis. Phil. Mag. (Curtis) v. iv. p. 217.—Steph. Nomen. 2d edit. col. 118. «‘ Fuscous: head whitish or ochreous; anterior wings with an ochreous spot near the base, an angulated band across the middle, a spot on the cilia at the stigma and seven round, and one at the apex; legs and belly dull silvery.’—Curtis, 1. c. Taken in June, in the south of England. HYDROETILIDZ.—AGRAYLEA. 153 Sp. 5. costalis. Pallide ochracea, nitida, alis anticts fusco variegatis, ciliis costalibus elongatis nigris area centrali pallida. (Long. corp. 1—14 lin. ; Exp. Alar. 3 lin.) Hyd. costalis. Phil. Mag. (Curtis) v. p. 217.—Hyd. Scotica. Steph. Nomen: 2d edit. col. 118 ? «Pale ochreous, shining : anterior wings variegated, fuscous, with a dot on _ the disc, the costal cilia long and black, with a long pale space at the ~ centre.”—Curtis, l. c. Found, occasionally, in June, near London, and probably in Scotland. Genus III.—AGRAYLEA, Curtis. “« Antenne not longer than the body, rather short and filiform: head rather broad: abdomen short: wings long, narrow and pubescent : anterior legs short, the others slender; four posterior ¢ibie with long spurs at the apex, intermediate with one at the middle ; hinder with a pair above the apex.’”— Curtis, l.c: I do not remember to have seen a specimen of this genus, which, froni the above definition, appears to belong to this family, and to differ from the other genera by having only one spur in the middle of the intermediate tibie. +Sp. 1. sexmaculata. Ochracea, antennarum apice fusco, alis anticis fuscis, maculis sex albidis. (Long. corp. — lin.; Exp. Alar. 4 lin.) Agr. 6-maculata. Phil. Mag. (Curtis) v. iv. p. 217.—Steph. Nomen. 2d edit. _ Appendiz. “‘Ochreous: antenne fuscous, except at the base ; superior (anterior) wings pale fuscous, with two whitish spots on the costa, two towards the apex, and two oblong spots on the inferior (inner) margin of the same colour.” — Curtis, l. c. I know not the locality of this species. +Sp. 2. multipunctata. Fusca, vertice griseo, facie, abdomine, pedibusque fulvis, alis anticis maculis plurimis ochraceis. (Long. corp. — lin. ; Exp. Alar. 4 lin.) Agr. multipunctata. Phil. Mag. (Curtis) v. iv. p. 217.—Steph. Nomen. 2d edit. Appendix. « Fuscous: crown of head griseous ; superior (anterior) wings with a long ochreous spot beyond the stigma, with several small ones on the posterior _margin and along the centre to the base, two oblong ones on the inferior ManpisuLata, Vou. VI., Aucust 15rn, 1836. U 154 MANDIBULATA.—TRICHOPTERA. (inner) margin, and two at the base of the cilia; face, abdomen, and legs, © fulvous.”—Curtis, 1. c. Of this species I am also unaware of the locality. Genus IV.—NARYCIA mihi. Antenne with the basal joint pilose and much incrassated, the remainder furnished on each side with long hairs: maxillary palpi drooping, very pilose, rather short: head transverse-ovate, pilose in front: eyes moderate, lateral, scarcely prominent: thorar ovate: wings strongly deflexed during repose ; anterior elongate-elliptic, obtusely rounded at the apex, which is furnished with short scaly cilia; nervures very indistinct ; posterior smaller, somewhat ovate, furnished with longer cilia: abdomen shortish, stout, some- what cylindric: legs stoutish, anterior tibie with a single spur at the inner apex ; intermediate with a pair, and posterior with a pair at the apex, and a second pair in the middle. The distinctly pectinated filiform antennez of the insects of this genus at once serve to distinguish them from the other 'Trichoptera, from which, like Acentropus, they also differ in having the wings clothed with scale-like hairs; but, unlike that genus, their legs are provided with ample spurs, and the sides of the thorax are not fur- nished with tippets. Sp. 1. elegans. Prats xxxii. f. 4.—Brunneo-nigra, alis anticis nigris brunneo variegatis, punctisque flavis, margine tenuiore ochraceo maculato. (Long. corp. 13 lin.; Exp. Alar. 4 lin.) Narycia elegans. Steph. Nomen. 2d edit. col. 118. Shining brown-black: antenne very pilose, silvery-grey, with the tips of the articulations black, radii fuscous ; anterior wings black, varied with brown, and with numerous yellowish and ochreous dots, of a golden tint, especially on the margins, the inner one having two large blotches of that colour towards the middle; posterior wings fuscous, with darker cilia; legs silvery-grey, varied with brown-black. Twice taken on palings at the Hermitage, South Lambeth, at the end of June. >» Famity II].—RHYACOPHILID mihi. Antenne slender, moderate, rarely exceeding the length of the wings: maxillary palpi alike in the sexes and 5-jointed, slightly pilose, the two basal joints short, the 2nd being about as long as the Ist, the 3rd elongate, 4th and 5th somewhat shorter, this last being ovoid: wings narrow, elongate, slightly _RHY ACOPHILID £.—AGAPETUS. 155 ciliated on the hinder and inner margins; anterior with more or less furcate longitudinal nervures, but very rarely with transverse ones, or with a dis- coidal areolet ; posterior rather shorter and smaller, slightly folded on the inner edge: abdomen moderate, of the males occasionally furnished with hairy appendages beneath, and in both sexes sometimes also at the apex: legs long and slender, tibie more or less armed with spurs. Larva with or without external respiratory organs, not residing in a case ; pup2 inclosed in a double envelope, the inner one scaly, the outer silken and mixed with small stones and other foreign materials: they reside in running waters. The insects of this family are for the most part of small size, and are extremely difficult to discriminate from each other without careful attention to their structure, owing to the similarity of their colouring, and their paucity of markings: it is much to be regretted that M. Pictet, in his otherwise valuable work on these insects, has almost totally omitted to notice the peculiarities of neuration of the wings, or the numbers and positions of the spurs on the tibize of the respective species, especially of this family, which he seems to have mixed together most heterogeneously : they may generally be distin- guished by having the two basal joints of the maxillary palpi very short, and the terminal one not longer than the preceding, and ovate. The species may be thus divided into genera :— Tibiis anticis 2-calcaratis : Alis omnibus areola discoidali: . 3 A . 8 GLOssosoMA. anticis solim areola discoidali 5 A - 9. TINODES. omnibus areola discoidali nulla ; Antennis arte. basali maximo : 6 4 . 6. BERZA. parvo ; Alis elongatis, angustis, obtusis : : - J. ANTICYRA. brevibus, rotundatis : 0 : . 5 AGAPETUS. Tibiis anticis 3-calcaratis : ; 5 . 10. RHYACOPHILA. Genus V.—AGAPETUS, Curtis. Antenne shorter than the wings, and not longer than the body, stout, especially at the base, and divaricating: palp: rather short, slightly pilose: head densely clothed with woolly hairs above: eyes globose, rather prominent : wings short, with dense elongate cilia on the hinder and inner margins, anterior rounded at the apex, with four single longitudinal nertures on the costal portion of the apex, and with three bifid ones on the anal portion : abdomen short, robust ; of the male furnished with an incurved spine in the 156 MANDIBULATA.—TRICHOPTERA. middle beneath, and a smaller and similar process behind it ; of the female simple and acute at the apex: Jegs rather short, anterior shortest ; ¢ibie all armed with a pair of spurs at the apex, the intermediate and posterior ones with a second pair below the middle, hinder ¢zbz@ ciliated on the outer edge 3 apex of the middle pair and basal joint of the tarsi dilated in the females. The insects of this genus are small; they have the anterior wings short, rounded, and rather broad in proportion to their length; the antennz are very robust, especially at the base, and diverge from each other: the males are remarkable from having an meurved spme- like process beneath the middle of the abdomen, and the females have the base of the mtermediate tarsi dilated. Sp. 1. funereus. MWiger, obscurus, alis anticis fusco-brunneis, ciliis elongatis nigricantibus, pedibus fuscis. (Long. corp. 23 lin. ; Exp. Alar. 54 lin.) Ph. funerea. Olivier ?—Steph. Catal. 317. No. 3583. Black, obscure: head slightly clothed with a brown-black pile ; anterior wings dusky-brown, with a clothing of fine golden hairs, and with long dusky cilia; posterior wings fuscescent, and slightly iridescent; legs fuscous. Taken occasionally near London, and in Devonshire, in June. Sp. 2. fuscipes. Niger, supra tomentosus, alis antics ochraceo-fuscis pilis palli- dioribus, pedibus fuscis, ochraceo maculatis. (Long. corp. 2§ lin.; Exp. Alar. 5 lin.) | N.G. (552) fuliginosa. Steph. Catal. 317. No. 3586.—Ag. fuscipes. Phil. Mag. (Curtis) v. iv. p. 217 $.—Rh. lanata. Pictet, 194. pl. xvi. f. 18.—Ag- ochripes. Phil. Mag. (Curtis) v. iv. p. 217 9. Black, clothed above, especially on the head and thorax, with a shining griseous pile; anterior wings griseous, with ochreous hairs, the posterior iridescent, with the apex griseous, the nervures of all dusky ; legs fuscous, with the trochanters, the knees, and the middle of the hinder tarsi ochreous. Female with the legs pale ochreous, and the basal joints of the intermediate tarsi dilated. Found, not uncommonly, at Ripley, in June; also in Devonshire and in the New Forest. Sp. 3. laniger. Brunneus, tomentosus, subtus ochraceus, alis anticis griseo= ochraceis, pilis pallidioribus, pedibus ochraceis, anticis nigricantibus. (Long. corp. 23 lin.; Exp. Alar. 5—53 lin.) N.G. (552). opaca. Steph. Catal. 317. No. 3584.—Rh. lanigera. Piuctet, 195. pl. xvi. f. 19. Brown: head densely clothed with a shining griseous pile ; thorax the same RHY ACOPHILIDEZ.—AGAPETUS. 157 above, beneath ochreous; anterior wings bright tawny-griseous, clothed with hairs of a golden hue, especially at the base ; cilia long and slightly ochreous-brown ; posterior wings more transparent, somewhat fuscescent and iridescent ; legs ochreous ; antenne dusky. Common in Walsam-meadows, near Ripley, in June; also at Hertford. Sp. 4. comatus. Niger, subtus ochraceo-fulvus, tomentosus, alis anticis canescen- tibus pilis subochraceis, pedibus ochraceis. (Long. corp. 23 lin.; Exp. Alar. 5% lin.) N. G. (552). flavipes. Steph. Catal. 317. No. 3588.—Rh. comata. Pictet, 194. “pl. xvi. f. 17. Above black: head and thorax densely clothed with a glossy griseous pile; beneath tawny-ochreous ; anterior wings ochreous-brown, clothed with a brighter pile, and ciliated with long ochreous-brown hairs; legs pale ochreous. Less abundant than the last: taken near Ripley in June. Sp. 5. setiferus. Capite corporeque brunneis, antennis ochraceis brunneo annu- latis, alis griseo-cinereis sericeis, pedibus flavis. (Long. corp. 2 lin. ; Exp. Alar. 5 lin.) Rhy. setifera. Pictet, 197. pl. xvi. f. 24.—Ag. setiferus. Steph. Nomen. 2d edit. Appendix. Head and palpi brown: antenne annulated with ochreous and brown; anterior wings griseous-ash, immaculate, ochreous at the base, with long silky griseous cilia; legs ochreous-yellow, with short spines, and dusky cilia on the femora and tibie. Found, in June, at Hertford. tSp. 6. azureus. Niger, antennis fuscis, alis anticis atris, nitidis, posticé atro azureis, pedibus ochraceis. (Long. corp. 2lin.; Exp. Alar. 5 lin.) Ph. azurea. Linné.—Turton(!)—Mystacide? azurea. Steph. Catal. 320. No. 3660. 1 Deep glossy black: antenne short, thick and deep brown ; anterior wings shining black, the hinder portion brilliant steel blue, with long black cilia ; legs ochreous. Introduced by Turton into the British list: I supposed that I possessed the insect when my Catalogue was published, seven years since, but my insect proves to be a species allied to Mystacide niger, and not the present, according to Pictet’s detailed description, which appears to place it in this genus. 158 MANDIBULATA.—TRICHOPTERA. Genus VI.—BERAA mihi. Antenne rather slender, shorter than the wings, porrected, the basal joint robust, elongate and hairy: maxillary palpi long, stout and hairy: labial short: head small, transverse, pilose in front: thorax ovate: wings short, with very indistinct nervures ; anterior broadish, rounded at the apex ; all very pubescent, and fringed with long hairs: abdomen short, obtuse: legs rather short : #bi@ all with a pair of longish spurs at the apex, the posterior pair with a smaller pair below the middle. The little insects comprised in this genus differ from the rest of the family by having the palpi robust and hairy, the basal joint of the antennz stout, directed forwards, and also very hairy, the antennze themselves being rather slender, especially at the tip; the wings are rather broad, short and rounded at the apex, with,very indistinct nervures, and very hairy; they are generally of very sombre dark hues, and the insects of small size: the genus corresponds with Thya of Curtis, but as that name was long since employed by Dr. Leach for a genus of Crustacea, I shall adopt the one given previously to Mr. Curtis’s, in the second edition of my Nomenclature. Sp. 1. albipes. Altra, alis nigro-fuscis, anticis subiridescentibus, atomis aliquot albidis, pedibus fuscis, tarsis albidis. (Long. corp. 2 lin.; Exp. Alar. 53—6 lin.) N. G. (552). albipes. Steph. Catal. 317. No. 3581.—Berea albipes. Steph. Nomen. 2d edit. col. 118.—Thya pullata. Phil. Mag. (Curtis) v. iv. p. 216? Deep black: wings brown-black, anterior faintly iridescent, with some obscure whitish atoms towards the apex; cilia long and black; legs fuscous ; tarsi whitish-ochreous. Found near London, and at Hertford, in June. Sp. 2. pygmza. Aira, alis fuscis immaculatis, pedibus fuscis, genubus albidis. (Long. corp. 2lin.; Exp. Alar. 44—5 lin.) - N.G. (552). pygmea. Steph. Catal. 317. No. 3585.—Be. pygmza. Steph. Nomen. 2d edit. col. 119.—Rhy. Melas. Pictet, p. 196. pl. xvi. f. 21? Deep black: anterior wings fuscous-black, immaculate, cilia black; legs fuscous, with the knees whitish, or ochreous. Taken near London, and in Devonshire, in June. Sp. 3. Marshamella. Azra, alis anticis angustioribus subochraceo-fuscis, imma- culatis, pedibus fuscis, geniculis tarsisque subochraceis. (Long. corp. 2 lin. ; Exp. Alar. 5 lin.) RHY ACOPHILID £.— ANTICYRA. 159 N. G. (552). Marshamella. Steph. Catal. 317. No. 3587.—Be. Marshamella. Steph. Nomen. 2d edit. col. 119.—Thya Maurus. Phil. Mag. (Curtis) v. iv. pl. 216.—Rhy. nigrocincta. Pictet, p. 197. pl. xvi. f. 23? Deep black: wings fuscous-black, with a dull lutescent tint ; anterior rather narrow ; cilia fuscous ; legs fuscous, with the knees and tarsi dull ochreous. From Marsham’s cabinet. Genus VII.—ANTICYRA, Curtis. Antenne stoutish, rather longer than the body, but shorter than the wings, the apex slender, basal joint small: maxillary palpi stout, nearly glabrous, depending, longish: head very hairy in front, small: eyes not prominent : wings long, nervures indistinct, anterior very narrow, obtusely rounded on the hinder margin, moderately pubescent, and fringed with shortish hairs: abdomen short, acute ; of the male with two horny lobes at the apex: legs, especially the two hinder pair, rather long and slender: anterior ¢ibie with a pair of short spurs at the apex, two posterior pair each with two long spurs at the tip, intermediate pair with two towards the base, and hinder pair with two below the middle: intermediate tibie and tarsi dilated in the females. Unlike the insects of the foregoing genus, these are distinguished by having the wings, the anterior especially, very long and narrow, but with indistinct nervures; they are also very pilose, but the palpi and basal joint of the antennze are but very slightly hairy, and the last is not conspicuously enlarged, as in Berea; the legs are long, the two hinder pair armed with long spurs, and the intermediate tibize and tarsi are dilated in the females. Sp. 1. pheopa. Ochracea, capite thoraceque supra fuscis, alis anticis griseo- fuscescentibus, posticis iridescentibus, antennis brunneis ochraceo cinctis, tibiis tarsisque fuscescentibus. (Long. corp. 23 lin.; Exp. Alar. 53 lin.) Ti. pheopa. Steph. Catal. 316. No. 3575.—Rhi. tomentosa. Pictet, p. 189. pl. xvi. f. 9? Pale ochreous: head and thorax above fuscous; antenne brown, with ochreous rings; anterior wings dull pale fuscous, with shortish cilia; posterior pair paler, more transparent, slightly iridescent; legs long; coxe, trochanters, and femora pale ochreous ; tibie and tarsi pale fuscous. Taken in June, at Ripley. Sp. 2. gracilipes. Pallide fusca, antennis pallidis nigro annulatis, alis anticis nitide ochraceis, pedibus fulvescentibus. (Long. corp. 23 lin.; Exp. Alar. 5—5}3 lin.) 160 MANDIBULATA —TRICHOPTERA. Ti. lutescens. Steph. Catal. 216. No. 3573.—Ant. gracilipes. Phil. Mag . (Curtis) v. iv. p. 217. Pale fuscous: head griseous ; eyes black ; antenne pale, with black or dusky _ rings ; wings elongate-lanceolate, anterior ochreous and shining, with con< . eolorous cilia; posterior more transparent, slightly iridescent, and pale ochreous; legs siender, dull pale fulvous. Found at Hertford, in July. Sp. 3. subochracea. Pallide ochraceo-fusca, antennis fusco annulatis, alis angustis, antics subochraceis, pedibus fulvescentibus. (Long. corp. 2 lin. ; Exp. Alar. 53—6 lin.) Ti. subochracea. Steph. Catal. 317. No. 3576.—Ant. latipes. Phil. Mag. (Curtis) v. iv. pl. 217.9 ? Pale ochreous-brown: eyes black; antenne pale ochreous, annulated with fuscous; wings narrow, anterior pale dull ochreous, with brighter cilia; posterior slightly transparent and fuscescent ; abdomen ochreous ; legs pale fulvous. Found at Ripley, towards the end of June. Sp. 4. ciliaris. Pallide ochracea, oculis abdomineque atro-fuscis, thorace rufo, pedibus antennisque pallidis, his fusco maculatis. (Long. corp. 13 lin.; Exp. Alar. 42 lin.) Ti. ciliaris. Steph. Catal. 317. No. 3577. Pale ochreous: head immaculate, rounded ; eyes deep fuscous ; thorax bright red’ and shining ; wings narrow, anterior pale uniform, yellow-ochreous, with the costa slightly darker; cilia silky and paler; posterior rather darker, more transparent, with the cilia slightly fuscescent ; abdomen deep fuscous, or black; legs pale. Taken in June, at Hertford. Genus VIII—GLOSSOSOMA, Curtis. Antenne nearly as long as the wings, slender, the basal joint a little thickened ; palpi alike in the sexes, maxillary with the terminal joint scarcely longer than the preceding one: head globose: eyes globose, lateral, prominent : _ thorax ovate : wings elongate-elliptic, each with a small somewhat lozenge- shaped areolet, placed beyond the middle of the disc; the anterior pair in the male with a raised callous glossy membrane at the base, concave beneath : abdomen attenuated to the apex, with a depressed horny appendage on the seventh segment beneath, and a smaller one on the following in the male, the terminal one appendiculated ; of the female acute: Jegs dissimilar, "anterior pair short, with two minute spurs at the apex of the tibiz, their Jemora compressed and thickened, two hinder pair slender, elongated, the 35 £899. $95 7X 27s Ja -olephe non. tublished ty LF. RAY ACOPHILIDA. —GLOSSOSOMA: 161 intermediate tibie with a pair of shortish spurs in the middle, and a second pair at the apex, posterior also with a pair at the apex, and a second pair near the apex ; of the female the intermediate tibie and basal joint of their tarsi are considerably dilated. ie This genus may be known at once by all the wings being furnished with a somewhat lozenge-shaped areolet, towards the apex of the disc, and the anterior pair in the males having an: elevated callous mem- brane near the base; the terminal joint of the maxillary palpi is not longer than the preceding, the legs are slender, but the female has the intermediate tibize and the basal joint of their tarsi dilated and compressed: the abdomen of the males is armed with two horny lobes beneath, as represented in the left hand figure (1. pl. xxxii.) tSp. 1. Boltoni. Fusco-castanea, abdominis apice pedibusque ochraceis, alis pallidé fuscescentibus, anticarum apice maculis obscure ochraceis. (Long. corp- 4? lin.; Exp. Alar. 10 lin.) Gl. Boltoni. Phil. Mag. (Curtis) v. iv. p.216.—Sieph. Nomen. 2d edit. Appendix. —Rhy. vernalis. Pictei, 189. pl. xv. f. 4? *« Antenne, head, thorax, and abdomen fuscous-castaneous, the former annu- Jated with, and the latter tipped with ochreous; wings pubescent, pale fuscous; superior (anterior) with the callous lump at the base in the male brown, clothed with black hairs ; stigma and a spot opposite on the inferior margin fuscous, and each nervure terminated by a spot of the same colour on the margin alternating with ochreous spots, with an indistinct row behind them, and two or three near the disc of the same colour; inferior (posterior) wings grey and transparent at the base.”—Curtis, l. c. The locality of this insect is not stated. Sp. 2. fimbriata. Prater xxxii. f. 1.—Piceo-fusca, capite abdominis apice pedibusque ochraceis, alis pallidé fuscescentibus immaculatis. (Long. corp. 25—3 lin.; Exp. Alar 52—7 lin.) Ti. fimbriata. Steph. Catal. 316. No. 3563.—Ti. simplex. Steph. Catal. 316. No. 3564 9. Head ochreous, eyes and palpi fuscous ; thorax and abdomen pitchy-brown or - dusky-chestnut, the apex of the latter ochreous ; wings pubescent, uniform pale fuscous, and wholly destitute of spots; stigma and nervures a little darker, anterior with the callous spot at the base fuscescent, darker towards the disc ; posterior wings rather paler and more transparent; legs and -antenne ochreous, the latter annulated with pale fuscous. Found, but rarely, near London; also taken in Scotland by the late Dr. Walker. Manpteunata, Vor. Vd., Aucust 15TH, 1836. x 162 MANDIBULATA.-——-TRICHOPTERA, Genus V.—TINODES, Leach MSS. Antenne somewhat remote, shorter than the wings, slender, the basal joint slightly ‘thickened: palpi similar in the sexes, maxillary long, a little pubescent, with the terminal joint considerably longer, and more slender, than the preceding one: head transverse: eyes globose, lateral: thorax slender: wings narrow ; anterior elongate-elliptic, with two small discoidal areolets, and four furcate nervures on the posterior margin, and in the males with a depressed, shining, membranous spot at the base: abdomen short, obtuse in the male, horny and acute at the tip in the female: legs slender ; anterior ¢ibi@ with two very short spurs at the apex ; intermediate with a pair of long ones towards the base, and another at the tip ; hinder ones with a pair near the apex, and a second pair at the apex itself; inter= mediate tibie and tarsi rarely dilated in the females. This genus closely resembles the foregoing, but the posterior wings are destitute of a discoidal areolet, and the anterior pair have, in addition to the lozenge-shaped one, towards the apex of the disc, an elongate-pentagonal one between it and the anal angle; they are likewise furnished with a rounded membranous spot towards the base, which is not, however, raised as in Glossosoma: the legs are slender in both sexes, and the abdomen of the male is not armed with horny appendages beneath; the basal joint of the antennz is rather small, the terminal joint of the palpi considerably longer than the pre- ceding, &c. A. Anterior wings with the nervures distinct, discoidal areolet closed ; (inter- mediate tibiew and ¢arsi not dilated in the females). Sp. 1. pallescens. Pallide ochraceo-fulvus, abdomine saturatiore apice pallido, pedibus ochraceis, alis anticis ochraceo-flavis, nervis pallidis. (Long. corp.. 2} lin.; Exp. Alar, 6—7 lin.) Ti. pallescens. Steph. Catal. 316. No. 3565. Pale tawny-ochreous: eyes fuscous; head clothed with a griseous down ; antenne pale, faintly annulated with dull ochreous ; abdomen brown on the back at the base, the apex pale ; legs pale ochreous; wings iridescent, pale ochreous yellow, very sparingly clothed with short golden hairs; cilia pale ochreous yellow ; nervures of all pale. Found, occasionally, near London, in June. Sp. 2. flaviceps. Ochraceus, thorace abdomineque supra schistaceis, antennis brunneis, pedibus capiteque ochraceo-flavis. (Long. corp. 2} lin.; Exp. Alar. 7—8 lin.) Ti. flaviceps. Steph. Catal, 316. No. 3566. RUY ACOPHILIDEZ.——-TINODES. 163 Ochreous: head yellowish-ochre; eyes. black; antenne brown; thorax and abdomen above slate-colour, the apex of the latter ochreous ; wings some-~ what transparent, slightly iridescent, pale fuscous, sparingly clothed with. short golden hairs ; nervures brownish-ochre, hinder pair more transparent, and of a darker hue; legs ochreous-yellow. ; : _ Also taken in June, near London. Sp. 3. xanthoceras. Fuscus, antennis pedibusque flavo-ochraceis, alis hyalinis, tridescentibus, ochraceo-fuscis, nervis saturatioribus. (Long. corp. 2} lin. ; Exp. Alar. 8 lin.) Ti. xanthoceras. Steph. Catal. 316. No. 3567. Head, eyes, thorax, and abdomen fuscous, the latter darkest and pale at the apex ; antenne bright ochreous yellow ; wings hyaline, iridescent, especially the posterior, all pale ochreous-brown, with darker nervures, the costal one darkest, and very sparingly clothed with short gold-coloured hairs; legs’ ochreous-yellow. Inhabits the vicinity of London, in June and July. Sp. 4. luridus. Fusco-ochraceus, antennis capite thorace supra abdomineque saturate brunneis, alis (posticis preesertim) iridescentibus venis fuscis, pedibus ochraceo-fulvis. (Long. corp. 25—3 lin. ; Exp. Alar. 83—9 lin.) Ti. picicornis. Steph. Catal. 316. No. 3568.—Ti. luridus. Phil. Mag. (Curtis) v. iv. p. 216. Ochreous-brown: antenne, head, thorax above, and abdomen, deep reddish- brown; wings long and rather narrow, anterior slightly hyaline and iridescent, somewhat fuscous, with darker nervures ; posterior more hyaline and iridescent, with fuscous nervures ; legs tawny-ochre. Common, in June, at Hertford; also in other places within the metropolitan district. Sp. 5. pallipes. Ochraceo-brunneus, palpis oculisque nigris, alis latioribus anticis ochraceo-fuscis, aureo pilosis, nervis fuscescentibus, posticis tridescen= tibus, pedibus flavis. (Long. corp. 3 lin.; Exp. Alar. 8} lin.) Ti. pallipes. Steph. Catal. 316. No. 3572. Ochreous-brown : palpi and eyes black; apex of abdomen ochreous; wings rather short and broad, hyaline; anterior ochreous-brown, with fuscescent nervures, densely clothed with golden hairs, transparent, with a conspicuous dot towards the base within; posterior more transparent, iridescent, with fuscous nervures; legs ochreous-yellow. Found in the vicinity of London, in June. Sp. 6. annulicornis. Ochraceus. pulpis oculis thoracis dorso, abdominisque basi hip oe 164 MANDIBULATA.—TRICHOPTERA. - supra fuscescentibus, pedibus ochraceus-flavis, antennis brunneis ochraceo - annulatis. (Long. corp. 23 lin.; Exp. Alar. 8 lin.) Ti. annulicornis. Steph. Catal. 316. No. 3569. Ochreous: palpi and eyes brownish ; antenne brown, with narrow whitish rings; thorax above and upper base of the abdomen fuscescent, the tip of the latter shining ochreous; wings nearly glabrous, iridescent, pale brownish, with scattered golden hairs, and fuscescent nervures ; posterior more transparent and iridescent ; legs ochreous-yellow. rein) Taken, but apparently not very common, near London, in June. Sp. 7. albipunctatus. Pallide ochraceus, capite, thorace abdomineque supra fuscis, pedibus pallide flavis, alis subochraceo-fuscis, anticis ad marginem posteriorem nebulis saturatioribus punctisque albidis. (Long. corp. 2% lin,; Exp. Alar. 73 lin.) Ti. albipunetatus. Steph. Catal. 316. [Vo. 3570. Pale ochreous: head, thorax, and abdomen above fuscous, or slate colour ; eyes fuscous; antenne ochreous; wings of an ochreous-brown, slightly hyaline and iridescent, anterior of a brighter hue, clothed with short golden ‘hairs, which form by their union a darkish stigma and minute spots on the - hinder margin at the apex of the nervures, each space between the nervures with a minute whitish spot on the cilia; posterior immaculate ; legs and -antenne pale ochreous-yellow ; intermediate tibie at the apex and base of the tarsi dilated in the female. Apparently rare: found, in June, near London. B. Anterior wings with the nervures indistinct, discoidal areolet open behind ; (intermediate tbe and éarsz dilated in the females). Sp. 8. obscurus. Ochruceo-flavus, oculis abdomineque supra subfuscis, alis subhyalinis, anticis fuscescente-ochraceis, immaculatis, antennis pedibusque ochraceo-flavis. (Long. corp. 23 lin.; Exp. Alar. 8 lin.) Ti. obscurus. Steph. Catal. 316. No. 3574. Ochreous-yellow: eyes and abdomen above fuscescent; wings somewhat — hyaline, slightly iridescent, auterior of a brownish-ochre, with darker nervures, immaculate, and sparingly clothed with golden hairs ; posterior more transparent and iridescent ; cilia of all fuscous ; legs and antenne pale ochreous-yellow. Also rather uncommon: found in June, near London. Sp. 9. pusillus. Brunneo-fuscus, abdomine nigricante, alis fusco-testaceis, antennis ochraceo fuscoque annulatis, pedibus ochraceo-flavis. (Long. corp- 2 lin.; Exp. Alar. 7 lin.) Ph. pusillus. Fabricius? —Steph. Catal. 317. No. 3582. Fuscous-brown: eyes and abdomen blackish ; wings rather narrow, brownish- RHYACOPHILID £.—RHY ACOPHILA. 165 testaceous, densely clothed with golden hairs, immaculate ; cilia slightly fuscescent, posterior somewhat more transparent aud slightly iridescent ; legs ochreous-yellow ; antennz ochreous, annulated with fuscous. Taken within the metropolitan district, in June. Grnus X.—RHYACOPHILA, Pictet. Antenne rather slender, not so long as the wings, placed somewhat remotely, the basal joint stoutish: maxillary palpi rather long, slender, nearly glabrous, a little porrected obliquely: head smallish, and rounded, hairy in front: eyes rather prominent, lateral: wings long, and somewhat elliptic-acute ; anterior with three elongate discoidal] areolets, from the first of which arise four sub-simple nervures, running parallel with the stigma, then follow two bifid ones, and on the anal angle are two simple ones, which arise from the apex of the inner areolet ; posterior wings shorter, small, also with three elongate-discoidal areolets, and with one of the nervures very distinctly furcate near the margin: abdomen longish, compressed, attenuated to the apex ; of the males furnished with long horny appendages, the two inter- mediate being laminated and bifid, the two others spiniform, the larve are bifurcate : legs rather slender ; anterior pair shortest: ¢ibi@ all armed with a pair of long spurs at the apex, the anterior with one also below the middle, the intermediate and hinder pair each with a pair near the apex. Larva with external respiratory organs, the segments somewhat remote, rounded on the sides, the terminal one with a bifid appendage at each side. The three-spined anterior tibize of the insects of this genus, form a conspicuous mark of distinction from those of the other genera of this family, and their palpi remove them from the Hydropsychide, in which family several genera are characterized by having a spur on the side of the anterior tibiz: the larvee of the Rhyacophilidz have their respiratory organs external. A. Body slender: (intermediate tibia and tarsi of the females not dilated). Sp. 1. vulgaris. Fusco-ochracea, alis hyalinis, anticis fusco subpunctatis, macu= laque dorsali communi rhomboidali pallide-flavescente. (Long. corp. 5—6 lin. ; Exp. Alar. 1 unc. 12—13 lin.) Phi. obsoletus. Steph. Catal. 318. No. 3604.—Rh. vulgaris. Paictet, p. 182. pl. xv. f: 1.—Phi. dorsalis. Phil. Mag. (Curtis) v. iv. p. 213? Head, antenne, and body ochreous-brown, spotless; eyes black; anterior wings hyaline, pale dull ochreous-brown, with minute darker punctures in the direction of the nervures, especially towards the inner and hinder margins, and an irregular, somewhat triangular, spot in the middle of the inner edge, forming, with the opposite wing, when closed, a rhomboid spot; the posterior wings are more transparent, faintly iridescent, and spotless ; legs pale ochreous. 166 MANDIBULATA.—TRICHOFTERA. Larva with the head narrow, yellow, with three black spots; collar yellow ; meso- and meta- thorax and abdomen purplish, varied with greenish ; respiratory organs purple ; legs ochreous: it inhabits rivulets. Found, occasionally, in the vicinity of the metropolis, in June and July, but more abundantly in Devonshire; taken also in the New Forest and in Scotland. Sp. 2. Stigma. Pallide ochracea, alis fuscescentibus atomis flavescentibus, stigmate elongato, fusco, antennis pedibusque fulvescentibus. (Long. corp. 5—6 lin.; Exp. Alar. 12—15 lin.) Phi. Stigma. Steph. Catal. 318. No- 3663.—Phi. longipennis. Phil. Mag, (Curtis) v. iv. p. 213? Pale ochreous: eyes fuscous; back of the abdomen sometimes fuscescent ; legs and antennz rather pale fulvous, the latter with darker rings ; anterior wings fuscescent, with numerous indistinct minute yellowish atoms, and a whitish dot in the middle; posterior wings more transparent, of an uniform colour, all with an elongate tawny-fuscous stigma, sometimes dotted with ochreous. Found near London, and in Devonshire, in July. Sp. 3. opaca. Subfuscescente-ochracea, alis fuscescentibus ochraceo indistincté trroratis, nebulisque albidis, antennis crassis brevibusque, his pedibusque fulves- centibus. (Long. corp. 5 lin.; Exp. Alar. 114 lin.) Phi. opacus. Steph. Catal. 318. No. 3605. Brownish-ochreous, with the under parts and the apex of the abdomen palest ; eyes fuscescent ; antenne rather short and thick, fulvescent ; anterior wings fuscous, very indistinctly irrorated with ochreous, ard with some obscure whitish clouds on the inner margin; stigma obscure; posterior wings hyaline, immaculate-fuscous ; legs pale tawny. Taken, in June, within the metropolitan district. B. Body broad: (intermediate tzbi@ and tarsz of the females dilated.) Sp. 4. nebulosa. Ochraceo-fusca, abdomine ochraceo-cingulato, pedibus fulves- centibus, coxis fuscescentibus, alis subfusco nebulosis anticis apice subtruncato. (Long. corp. 6 lin.; Exp. Alar. 133 lin.) Phi. nebulosus. Steph. Catal. 318. No. 3606. Very broad, ochreous-brown: palpi and eyes fuscous; margins of the abdo- minal segments both above and below broadly ochreous ; legs pale tawny, with the coxe fuscescent; anterior wings obliquely truncate at the apex, the disc obscurely clouded with fuscous, the hinder margin with a brownish dot at the tip of each nervure; intermediate tibie and tarsi dilated in the females. Found at Hertford, in the autumn. HYDROPSYCHIDE. . 167 Famiry IV.—HYDROPSYCHIDA, Curtis. Antenne in general very slender, sometimes very much attenuated and elongate, at others stouter and not so long as the wings: maxillary palpc similar in the sexes, 5-jointed, the terminal joint very long and filiform, frequently longer than the four others united, the basal joint mostly short, ’ the two next of nearly equal length, and the fourth rather longer: wings ’ moderately broad, the anterior with very few, or no, transverse nervures, the hinder margin either rounded or somewhat obliquely truncate ; posterior wings ample, more or less folded towards the inner edge: abdomen longish and rather stout, of the males with small horny lamella at the apex, of the females obtuse: legs moderate: tibie with a pair of spurs at the apex, the anterior sometimes with a single additional one in the middle, the interme- diate and posterior with a pair at or helow the middle. Larva, as in the preceding family, with or without external respiratory organs, not residing in a case; pupa inclosed in a single silken envelope, con- structed of silk, with bits of plants and small stones intermixed, or merely a simple cocoon. The insects of this family differ from those of the foregoing by having the terminal joint of the palpi remarkably long and slender, and apparently divided into numerous rings or rudimentary joints ; they are of dull hue in general, and many of them are so extremely similar to each other that the utmost caution is requisite to separate them: the respective genera, however, differ much in habit from each other. This family may be thus divided into genera :— Tibiis anticis 3-calcaratis ; Alis anticis nervis transversalibus diversis: ._ - 14, Cyrnus. paucis ; Antennis alis longioribus ; e : . Ll. PLECTROCNEMIA. haud longioribus ; > - 15, PoLYCENTROPUS. Tibiis anticis 2-calcaratis ; Antennis gracilis alis longioribus ; Alis posticis parvis, vix plicatis ; - 12, PHiLopoTamus. amplicibus, valdé plicatis; 13. HyDROPSYCHE. brevibus alis brevioribus ; . . 16. APHELOCHEIRA. 168 MANDIBULATA.—TRICHOPTERA. Genus XI.—PLECTROCNEMIA* mihi. Antenne rather slender, about as long as the wings, slightly pubescent, the basal joint largest, but not conspicuously robust: maxillary palpi rather slender, with the terminal joint considerably longer than the others united : _ head broadish, clothed with long hairs on the crown : eyes rather prominent : thorax stoutish: wings much deflexed during repose; anterior elongate- elliptic, with all the nervures bifurcate on the hinder margin, and the sub- costal one united to the costal by a transverse nervure at the base of the stigma, forming one long discoidal areolet ; posterior wings ovate-triangular, _ with about five bifurcate nervures on the central portion of the hinder margin: abdomen shortish, terminated by two lateral, angulated, horny appendages in the males: legs rather slender, anterior shortest and stoutest, their tibia armed with a pair of longish spurs at the apex, and a single one in the middle of the inner edge; intermediate tibie with a pair of long slender ones at the apex, and a second pair below the middle ; hinder ones with a pair at the apex, and another pair above the middle. From the two following genera this may be known by the anterior tibize being furnished with a strong spur in the middle, in addition to the pair at the apex, as in Cyrnus and Polycentropus, but from those genera the different neuration of the wings, as well as the general habit, remove it: the antenne are longer than in the last genus, and rather stouter. Sp. 1. senex. Fuscescente-brunnea, fronte thoraceque pilis argenteo-albidis vestitis, antennis fulvis albo annulatis, alis anticis canescentibus, albido nigroque variegatis costa nigro-punctata. (Long. corp. 5—6 lin.; Alar. 12—13 lin.) N.G. (554). nigripunctatus. Steph. Catal. 317. No. 3591.—Phil. conspersus. Phil. Mag. (Curtis) v. iv. p. 213 ?—Hyd. senex. Pictet, 219. pl. xix. f. 1. Head and thorax pale fuscotis, the former with a band of silvery-white hairs round the eyes, and a tuft of the same on the forehead, and the latter with white hairs above ; the under side, palpi, and legs, are pale tawny ; antenne tawny, with white rings; anterior wings ashy, or hoary, with numerous irregular whitish blotches and black spots, placed somewhat regularly on the’ margins, but irregularly on the disc, and the hinder margin with some indistinct yellowish and dusky spots, and near the base, towards the inner margin, is a tuft of brown hairs; posterior wings pale ashy, and imma- culate. ; * WAnerpoc calear, cvnpn tibia. WYDROPSYCHIDH.—PHILOPOTAMUS. 169 Larva with the head fulvescent, dotted with black, the central spots disposed in a circle, the rest of the body pale fleshy-yellow. Apparently rare near London, but not uncommon in Devonshire, in July. Genus XIJ.—PHILOPOTAMUS, Leach MSS. Antenne nearly as long as the wings, slender, with a tuft of hair at the base : maxillary palpi very long, the terminal joint considerably longer than the others united, and attenuated to the tip: head moderate: eyes large, sub-= globose: thorax stout: wings elongate-elliptic ; anterior with four indistinct transverse nervures, placed nearly in a line with the stigma, and another situated obliquely about the middle of the costa; posterior small, very slightly folded: abdomen shortish, broad, depressed, acute at the apex, which is furnished with horny appendages in the males: /egs moderately long: anterior tibie armed with a pair of longish spurs at the tip, interme- diate and posterior each with a long "pair at the tip, the former with a second pair above the middle, and the latter with a pair below the middle: tarst moderate, middle pair not dilated in the females. The pretty insects contained in this genus difier from the following in having a distinct transverse nervure, placed rather obliquely, about the middle of the costa, the other transverse nervures are situated in nearly a straight line, somewhat parallel with the hmder margin, and arising from the stigma; the anterior wings are rather acutely- elliptic, very prettily maculated with yellow or tawny, on a brown ground; the posterior ones are small and but little folded; the anterior tibize are destitute of a medial spur. Sp. 1. Scopulorum. Miger, pedibus antennisque fulvis, his brunneo annulatis, alis anticis brunneis luteo-maculatis, posticis fuscescentibus brunneo-maculatis. (Long. corp. 4—5¥ lin.; Exp. Alar. 9—15 lin.) Phi. Scopulorum. Leach MSS.—Steph. Catal. 317. No. 3599. Black: palpi and antenne tawny, the latter annulated with brown; forehead with a dense griseous pile; anterior wings brown, irregularly spotted with round pale luteous spots of various sizes, largest on the costa; posterior wings fuscescent, with obscure luteous and brownish spots on the margins ; legs pale tawny. Extensively distributed throughout the mountainous districts of England, Scotland, and Ireland; found but rarely in the lower parts of the country: it occurs in June. Sp- 2. variegatus. Miger, antennis pedibusque fulvescentibus, alis antics Mawnpisunata, Vor. VI., Serr. 30TH, 1836. Y 170 MANDIBULATA.—TRICHOPTERA. brunneis maculis numerosis, rotundatis, luteis, posticis griseis. (Long. corp. 5 lin.; Exp. Alar. 1 unc. 2—4 lin.) Phr. variegata. Fabricius.—Phi. variegatus. Steph. Catal. 318. No. 3601. Black: antenne and palpi pale tawny; anterior wings deep brown, with numerous distinct, rounded, bright luteous spots, the largest of which are on the margins; posterior wings plain griseous ; legs pale tawny. Taken, but not very commonly, in Devonshire, in June. Sp- 3. montanus. Niger, antennis brunneis, pedibus fulvis, alis fuscescente- brunneis, luteo obscuré maculatis. (Long. corp. 3—4 lin. ; Exp. Alar. 9—11 lin.) Phr. montana. Donovan, v. xvi. pl. 548. f. 1.—Phi. montanus. Steph. Catal. p. 318. No. 3609. Black : palpi and antenne brown; legs tawny ; anterior wings dusky-brown, with numerous indistinct rounded luteous spots ; posterior wings darker, more transparent, aud with a few dusky spots on the margin, at the extre- mities of the nervures. Found in Devonshire, and in South Wales and Iveland, in July. Genus XIII.—HYDROPSYCHE, Picéez. Antenne very slender, generally longer than the wings, and sometimes a little serrated within, the basal joint rather stout: maxillary palpi above as long again as the labial, the terminal joint very much elongate and slightly attenuated, irregularly wrinkled transversely, as is also the apical joint of the labial: head pilose: eyes small: thorax subovate: wings rather ample, anterior elongate, narrow at the base, the apex obliquely truncate, TSp. 4. reticulatus. Niger, alis subferrugineis atro reticulatis maculatisque. (Exp. Alar. 15 lin.?) Phr. reticulata. Linné.—Turton (!)—Phi. reticulatus. Steph. Catal. 318. No. 3602, note. Black: wings paie ferruginous, anterior transversely reticulated with black, with some spots of the same on the hinder margin and on the disc ; posterior with a waved black fascia, and a marginal row of somewhat confluent black spots. ; I have never seen this insect: from the Linnean definition, it hardly belongs to this genus, but I know not where else to locate it: from Panzer’s figure it seems allied to the foregoing insects, and probably the Linnean term, “‘venis atro reticulatis,” merely refers to the appearance of reticulation arising from the colouring. Turton gives this as indigenous, but I believe improperly. HY DROPSYCHID.E.—HY DROPSYCHE. 171 or rounded ; transverse nervures few im number, irregularly dispersed, the middle of the costa without one: posterior wings ovate, with a trifid nervure in the centre: legs moderately stout: anterior ¢ébie with a pair of spurs at the apex, intermediate and posterior with a pair of long ones at the tip, the former with a second pair above the middle, and the latter with a pair much below the middle: intermediate ¢bie and their tarsi dilated in the females. Larva furnished with external respiratory organs. These insects differ from those of the preceding genera by having the antennz usually considerably longer than the wings and very slender; the wings are of different shape, being somewhat truncate at the apex, and they are generally destitute of a transverse nerve towards the middle of the costa; the proportions of the joints of the palpi are slightly different; their colours are of sombre hue, the wings not being prettily maculated with yellowish on a brown ground, as in Philopotamus, and the posterior pair have a trifid central nervure. Sp. 1. atomaria? Brunnea, infra ochracea, cano pilosa, alis canescentzbus, anticis ochraceo nigroque maculatis, pedibus flavescentibus. (Long. corp. 43 lin.; Exp. Alar. 9—11 lin.) Phr. maculata. Donovan, v. xvi. pl. 548. f. 2.—Phi.maculatus. Steph. Catal. 318. No. 3600.—Phi. instabilis. Phil. Mag. (Curtis) v. iv. p. 213.—Hyd. atomaria. Pictet, p. 201. pl. xvii. f. 1? Head and thorax brown, clothed above with greyish hairs, the sides and under surface of the latter ochreous; abdomen brown above, ochreous beneath and at the apex ; wings pale grey, the anterior with a few more or less indistinct blackish dots and ochreous spots, the former predominating on the costa, and the latter on the inner margin, where are two rather larger brownish blotches, separated by two ochreous ones ; on the hinder margin are also some conspicuous ochreous spots; legs and antenne pale tawny, the latter annulated with brown; palpi brown. Var. 8. Phi. obliquus. Steph. Catal. 318. No. 3610.—Wings more distinctly spotted, the spots disposed in two somewhat oblique streaks. Larva with the head brown, with four azure spots, the three following segments brown, the abdomen greyish-sreen, its last segment and legs yellowish. Found, occasionally, near Lendon, in June and July, but more abundantly in Devonshire and Scotland. Sp. 2. tenuicornis. Capzte, thorace abdomineque nigricantibus, antennis graci- libus, ochraceis, alis anticis canescentibus, ochraceo nigroque punctatis, posticis Suscescentibus, pedibus ochraceo-fulvis, (ong. corp. 4 lin.; Exp. Alar, 10— 11 lin.) Sa] 172 MANDIBULATA.—TRICHOPTERA. Phi. antennatus. Steph. Catal. 318. No. 3612.—Hyd. tenuicornis. Piciez, p- 203. pl. xvii. f 2. Head, thorax, and abdomen dusky, or blackish, clothed with a greyish pile ; antenne very long and slender, pale ochreous ; anterior wings hoary-brown, minutely sprinkled with ochreous and black dots, the latter condensed into black spots on the inner margin; posterior wings dusky-brown, immacu- late ; legs tawny-ochreous, tibie palest. Larva with the head and three anterior segments blackish, the former with three orange spots; the remaining segments, except the last, which, and its appendages, are ochreous, greyish-green ; respiratory organs orange ; legs yellowish. Not common: found, occasionally, in July, near London. Sp. 3. guttata. Capite, thorace abdomineque nigris, griseo pilosis, alis anticis canescentibus ochraceo nigroque distincté maculatis, posticis albidis, pedibus fulvis. (Hong. corp. 33 lin.; Exp. Alar. 9—10 lin.) Phi. bimaculata. Steph. Catal. 318. No. 3611.—Hyd. guttata. Pictet, p. 203. pl. xvii. f. 3. Head, thorax, and abdomen black, clothed with a greyish pile; antenne - moderately long, pale tawny ; anterior wings hoary, distinctly spotted with ochreous and black, the latter predominating towards the inner margin ; posterior wings whitish hyaline; legs tawny ; claws black. Larva with the head brown, its sides and round the eyes yellowish, the crown with a black T ; the three following segments grey, yellowish on the sides, and edged with black; abdomen greenish, its apex and respiratory organs whitish ; legs yellow. Also uncommon: taken, in June, near London. Sp. 4. pellucidula. Capite palpis thoraceque nigricantibus, abdomine brunneo, antennis ochraceis, fusco punctatis, alis semihyalinis, anticis indistincté ochraceo fuscoque irroratis, marginibus internis et posticis ochraceo maculatis. (Long. corp. 63 lin.; Exp. Alar. 13—153 lin.) Phi. dorsalis. Steph. Catal. 318. No. 3614.—Phi. pellucidulus. Phil. Mag. (Curtis) v. iv. p. 213.—Hyd. leta. Pictet, 204. pl. xvii. f. 4. Palpi dusky ; head and thorax blackish above, clothed with very short greyish hairs; abdomen brown; wings semitransparent, anterior very obscurely irrorated with pale fuscous and ochreous, this last colour condensed into roundish spots at the apex of the costa and on the hinder margin, and into elongate ones on the inner margin, forming, when the wings are closed, conspicuous dorsal marks ; posterior wings paler and more transparent ; legs pale ochreous ; antennze very long and slender, ochreous, with dusky spots. Larva robust ; head ochreous, with a blackish spot in form of a cross ; thoracic HYDROPSYCHIDE. —HYDROFSYCHE. 173 segments pale brown, the two last each with an oblique black streak on the anterior angle, all edged with black ; abdomen ochreous; respiratory organs whitish ; legs yellow. Found, near London, in June and July, and rather abundantly in Devonshire, and in Scotland and Ireland. Sp. 5. hibernica. Ochracea, capite, thoraze, abdomineque fuscis, alis hyalinis nervis ochraceis, anticis posticé obscure fusco punctatis. (Long. corp. 4—5 lin.; Exp. Alar. 112—12} lin.) Phi. ochroleucus. Steph. Catal. 318. No. 3613.—Hyd. hibernica. Curtis, folio 601. Ochreous: head, thorax, and abdomen fuscous, the former clothed with bright greyish hairs; wings semitransparent, with ochreous nervures, anterior indistinctly spotted towards the base, and more distinctly on the tip of the costa and on the hinder margin with ochreous and pale fuscous 3 antenne shortish, pale ochreous, with slender oblique brownish rings at the base ; legs pale ochreous. I obtained a pair of this species from the Marshamian collection : the locality unknown. “ Roundstone in Connemara.”—Curitis, 1. ¢. Sp. 6. lanceolata. Capite thorace abdomineque nigricantibus, alis fuscis, anticis subfaleatis, obscuré irroratis, margine postico fusco punctato. (Long. corp. 33 —4 lin.; Exp. Alar. 12—13 lin.) Phi. marginepunctatus. Steph. Catal. 318. No. 3615.—Hyd. lanceolata. Phil. Mag. (Curtis) v. iv. p. 213. Head, thorax, and abdomen blackish, clothed with pale greyish hairs; wings fuscous, anterior slightly falcate, clothed with shining ochreous pubescence, somewhat freckled, and the hinder margin spotted with fuscous; legs pale tawny ochreous; antenne moderately long. Found, occasionally, near London, in July, and in the north of England, rather commonly. | Sp. 7. angustipennis. Capite thorace abdomineque nigricantibus, alis fuscis, anticis ochraceo tinctis stigmate brunneo, maculisque ochraceis, antennis sub- serratis. (Long. corp. 33—42 lin.; Exp. Alar. 10—13 lin.) Phi. affinis. Steph. Catal. 318. No. 3608.—Hyd. angustipennis. Phil. Mag. (Curtis) v. iv. p. 213. Head, thorax, and abdomen blackish, the latter paler beneath ; wings fuscous ; anterior tinged with ochreous, with a brown stigma, an oblong ochreous spot before and a round one at the hinder angle, most distinct in the males ; legs ochreous, the base dusky or fuscescent ; antenne slender, ochreous, obscurely serrated within, and faintly annulated with brown. . Found, occasionally, near London, in July; also in Norfolk and in Scotland. 174 MANDIBULATA.—TRICHOETERA. Sp. 8. fulvipes. Niger, abdominis segmentorum marginibus pallidis, tibiis tarsisque pallidé fulvis, alis anticis brunneis, obscure ochraceo nebulosis- (Long. corp. 5—6 lin.; Exp. Alar. 13—14 lin.) Phi. obscurus. Steph. Catal. 318. No. 3607.—Hyd. fulvipes. Curtis, v. xiii. pl. 601. Brown-black: head and neck clothed with griseous hairs; margins of the abdominal segments pale or ochreous ; wings pale tawny-brown, obscurely freckled with ochreous, nervures dark, with a small dot on the costa at the apex of the first fureate one; posterior wings paler, not freckled, and slightly iridescent; legs tawny, femora and sometimes the tibie dusky ; antenne tawny, annulated with brown. Not common: taken in July near London; also at Carlisle, and in Devonshire and in Dorsetshire. Sp. 9. angustata. Fusco-griseus, abdomine nigricante subtus virescente, alis subhyalinis, anticis ochraceis, holosericets, iridescentibus, nebulis 2-bus sub- ochraceis. (Long. corp. 23 lin.; Exp. Alar. 63—7 lin.) Hyd. angustata. Curtis, fol. 601.—Hyd. angustata. Steph. Nomen. 2d edit. Appendix. «* Antenne shorter than the wings, annulated; head and thorax griseous ; abdomen slate-colour, beneath silky-green or whitish ; wings subdiaphanous, fuscous ; superior (anterior) ochreous, with silky yellowish pubescence, and slightly iridescent, a large obscure ochreous spot on the costa towards the apex, and another on the interior margin beyond the middle.” —Curitis, l. c. This insect appears to unite the present genus with Cyrnus, but the anterior tibie are not spurred in the middle: it differs considerably in habit from Hydropsyche. I possess a pair of these insects, which answer to the above definition of Mr. Curtis: they were found in July in the garden at the Hermitage: it occurs, according to Mr. Curtis, in Loch Derg. Grnus XIV.—CYRNUS mihi. Antenne stoutish, considerably shorter than the wings, but as long as, or longer than, the body, the basal joint slightly thickened: palp: slender, maxillary ones long, the terminal joint filiform and transversely wrinkled : head rather large, pilose: eyes globose: thorax subovate: wings small ; anterior narrow, elongate-elliptic, rounded at the apex, narrowed at the base, the hinder margin with four bifid nervures, the longitudinal nervures each united by a transverse one, forming three elongate discoidal areolets, and two triangular ones towards the apex ; posterior small, ovate, slightly folded, the costal portion divided by a row of transverse nervures: legs stoutish, and rather long: anterior ¢7hie with a pair of shortish spurs at the apex, and a single HYDROPSYCHIDZ.—CYRNUS. 175 longer one in the middle; intermediate and posterior each with two pair, one pair at the apex, the other pair in the former towards the base, and in the latter below the middle. From the foregoing genera this may be known by the anterior tibiae being furnished with three spurs, two at the apex, and one in the middle, and from the following, which agrees in that particular, by the different neuration of the wings: these last organs are gene- rally of plain hue, and have mostly a transparent spot on the disc: the antennz are shorter than the wings, which are rounded at the apex. Sp. 1. unipunctatus. Nigricans, antennis pedibusque fulvis, alis fuscescentibus, nervis saturatioribus, anticis macula albo-hyalind. (Long. corp. 23—8 lin. ; Exp. Alar. 2}—3 lin.) Tin. unipunctatus. Steph. Catal. 316. No. 3571. Blackish : head brown; margins of abdominal segments beneath pale ochreous ; legs and antenne tawny, the latter faintly annulated with brown; wings brownish, with an ochreous tinge, the nervures fuscous ; anterior with a white hyaline spot at the apex of the inner discoidal areolet ; posterior wings more transparent, and slightly iridescent. Not common: taken in June and July, at Hertford, Ripley, and in other places, within the metropolitan district. Sp. 2. pulchellus. Fuscus, pedibus fulvis, antennis ochraceis, brunneo annulatis, alis ochraceo-fuscis, anticis ad apicem, pallidé luteo irroratis, punctoque dis- coidali albido. (Long. corp. 3lin.; Exp. Alar. 6—7 lin.) N. G. (553). pulchellus. Steph. Catal. 317. iVo. 3589. Fuscous: apex of the abdomen, palpi, and legs tawny; antenne ochreous, annulated with brown; anterior wings ochreous-brown, prettily freckled with pale luteous, especially at the apex, with a whitish hyaline dot at the tip of the inner discoidal areolet, the nervures dark fuscous ; posterior wings darker fuscous, iridescent and immaculate. This also occurs in various places within the metropolitan district, in June and July, and likewise in the New Forest and in Devon- shire. Sp. 3. urbanus. Gracilis, ochraceus, cupite thoraceque supra brunneis, alis angustis, immaculatis, antennis brunneo annulatis, palpis nigricantibus. (Long. corp. 2} lin.; Exp. Alar. 54—6 lin.) Hyd. urbana. Pictet, p. 213. pl. xix. f. 13.—Cyr. cognatus. Steph. Nomen. 2d edit. col. 119. Very slender: head and thorax light ochreous, brown above; eyes and palpi blackish ; antenne ochreous, annulated with brown; anterior wings narrow, 176 MANDIBULATA.—TRICHOPTERA, especially at the base, pale ochreous, immaculate, nervures very faint ; legs pale yellow. Taken near London, in June. Sp. 4. unicolor. Subgracilis, ochraceus, capite palpisque brunneis, alis hyalinis, perlepide iridescentibus. (Long. corp. 2 lin.; Exp. Alar. 6 lin.) Hyd. unicolor. Pictet, p. 218. pl. xx. f: 5. Rather slender: head and palpi brown, the latter darkest or dusky ; rest of the body, with the legs and antenne, bright ochreous ; wings pale ochreous, very transparent, immaculate, and beautifully iridescent. Found in June, at Hertford. Genus XV.—POLYCENTROPUS, Curtis. Antenne stoutish, shorter than the wings, but longer than the body, the basal joint thickened, the apical ones attenuated: palpi slender, slightly pilose; maxillary long and incurved, the terminal joint somewhat filiform, transversely wrinkled, and about as long as the others united: head trans- verse-ovate: eyes globose: thorax robust: wings small; anterior some- what elliptic-ovate, rounded at the apex, narrowed at the base, the costa with a central transverse nervure, two others in a line towards the tip at the base of the second furcate nervure, an oblique one towards the hinder angle, and another between that and the inner margin towards the base ; posterior slightly folded: Jegs rather stout, anterior shortest, their tibie furnished with a pair of spurs at the apex, and another on the side above the middle ; intermediate and posterior each with a pair at the apex, the former with a second pair above the middle, and the latter with a pair near the apex; intermediate tibie at the apex, and their tarsi, dilated in the females. This genus—Amathus of my Nomenclature, 2nd edit., (555) of my Catalogue—agrees with Cyrnus and Plectrocnemia in having a spur, or spine, about the middle of the anterior tibiae, as in many Lepi- doptera, in addition to a pair at the apex; but from these genera the different neuration of the wings, exclusively of the variation in the structure of the palpi, distinguishes the present ; the colouring is gayer than in those insects, and the form of the wings dissimilar : the species are of small size, and rather difficult to discriminate from each other. Sp. 1. subpunctatus. Fusco-brunneus, antennis pedibusque ochraceis, alis ochraceo-fuscis, anticis obsolete fusco irroratis. (Long. corp. 13—@ lin.; Exp. Alar. 6—7 lin.) HYDROPSYCHID.E.——POLYCENTROFUS. (7 N. G. (555.) subpunctatus. Steph. Catal. 317. No. 3592.—Am. subpunctatus. Steph. Nomen. 2d edit. col. 119. Dusky-brown: head paler, clothed with griseous hairs ; palpi and legs pale ochreous ; antenne the same, faintly annulated with brown ; wings ochreous- brown, anterior clothed with golden hairs, and obsoletely dusted with fuscous, nervures fuscescent ; posterior wings paler, slightly iridescent. Found, occasionally, in June and July, near Hertford. Sp. 2. picicornis. Migricans, tibiis tarsisque ochraceis, antennis piceis nig'ro annulatis, alis fusco-fulvescentibus, anticis obsoleté fusco nebulosis. (Long. corp. 2 lin.; Exp. Alar. 6—7 lin.) N. G. (555.) picicornis. Steph. Catal. 317. No. 3593.—Am. picicornis. Steph. Nomen. 2d edit. col. 119. Dusky: palpi and femora the same ; tibie and tarsi dull ochreous; antenne pitchy, with obscure black rings ; head clothed with griseous hairs; wings of a tawnyish-brown, anterior with golden hairs and obscure darker shades ; posterior paler, somewhat hyaline and iridescent. Taken in July, in Devonshire. Sp. 3. pyrrhoceras. Fusco-nigricans, antennis fulvis, brunneo annulatis, pedibus ochraceo-fulvis, alis fuscescentibus, anticis ochraceo irroratis. (Long. corp. 23 lin.; Exp. Alar. 1 unc. 63 lin.) N. G. (555.) pyrrhoceras. Steph. Catal. 317. No. 3596.—Am. pyrrhoceras- Steph. Nomen. 2d edit. col. 119. Bluish-brown : head clothed with griseous hairs ; antenne tawny, with brown rings ; legs tawny-ochreous, with the femora rather dusky behind; wings fuscescent, anterior rather thickly and uniformly sprinkled with small rounded ochreous dots; nervures fuscescent ; posterior more transparent, slightly iridescent. Apparently not common: taken in the vicinity of London in July. Sp. 4. fuliginosus. Capite thoraceque nigricantibus, antennis abdomineque piceis, pedibus obscuré ochraceis, alis fusco-infumatis obsoletissimé ochraceo irroratis. (Long. corp. 23 lin.; Exp. Alar. 7—73 lin.) N. G. (555.) fuliginosus. Steph. Catal. 319. No. 3594.—Am. fuliginosus. Steph. Nomen. 2d edit. col. 119. Head and thorax blackish, clothed with a dull griseous pile ; abdomen pitchy ; wings dull smoky-brown, anterior very obscurely freckled with minute indistinct ochreous atoms; posterior immaculate, more transparent; legs dirty-ochreous, the tibie and tarsi brightest; antenne pitchy, obscurely annulated with brown. Also found in the neighbourhood of the metropolis, in July. Manpizutata, Vor. VI., Serr. 307TH, 1836. Z 178 MANDIBULATA.—TRICHOPTERA. Sp. 5. concinnus. Capite thoraceque brunneis, abdomine fusco basi pallidiore, pedibus antennisque ochraceo-fulvis, his obscuré brunneo annulatis, alis anticis Sulvescente-fuscis ochraceo irroratis. (Long. corp. 23 lin.; Exp. Alar. 8 lin.) N.G. (555.) concinnus. Steph. Catal. 317. No. 3595.—Am. concinnus. Steph. Nomen. 2d edit. col. 119. Head and thorax brown, clothed with griseous hairs; abdomen fuscous, with the base paler, the margins of the segments also palish; wings tawny- brown, anterior with a slightly golden pile, and thickly, but minutely, freckled with ochreous, some of the spots rather confluent on the costa ; posterior wings of a darker hue, more transparent, a little iridescent, with brown nervures, and immaculate; legs and antenne tawny-ochreous, the latter annulated with brown. Taken at Ripley, in July. Sp. 6. trimaculatus. Ochraceo-fuscus, alis anticis punctis numerosis rotundatis ochraceis, pedibus antennisque ochraceis, his annulis pallidioribus. (Long. corp- g—2 lin.; Exp. Alar. 5—6 lin.) Am. cambricus. Steph. Nomen. 2d edit. col. 119.—Pol. trimaculatus. Phil. Mag. (Curtis) v. iv. p. 213. Ochreous-brown, with a coppery tinge; head clothed with pale griseous hairs; wings fuscescent, anterior with numerous round ochreous spots, largest on the margins, with three or four more distinct towards the hinder angle; posterior wings paler iridescent, and more hyaline, the margin some- what fuscescent ; legs and antenne dirty-ochreous, the latter with paler rings. Found occasionally at Hertford, towards the end of June, and in Norfolk. Sp. 7- irroratus. Fusco-brunneus, alis anticis maculis numerosis ochraceo- sericeis ornatis nebulisque fuscis, pedibus subcastaneo ochraceis. (Long. corp. 23—3 lin.; Exp. Alar. 8—9 lin.) N. G. (555.) flavomaculatus. Steph. Catal. 317. No. 3597.—Am. maculatus. Steph. Nomen. 2d edit. col. 119.—Pol. irroratus. Curtis, v. xii. pl. 544. « Brown, head and thorax with shining yellowish hairs ; antenne annulated with ochre ; superior (anterior) wings with numerous ochreous silky spots, close together, but leaving several spaces, forming seven or eight brown patches on the costa, disc and inferior (inner) margin ; under wings very iridescent ; legs dull ochreous, with a pale castaneous tint.”—Curtis, I. c. Found, occasionally, im the vicinity of the metropolis, in‘ June, but more abundantly in the north of England, and in Scotland. Sp. 8. multiguttatus. Fuscus, alis anticis punctis numerosissimis ochraceis notatis, maculdgue albé. (ong. corp. 3 lin.; Exp. Alar. 85—9 lin.) HYDROPSYCHID£.—APHELOCHEIRA. 179 N. G, (555.) subnebulosus. Stepi. Catal. 317. No. 3598.—Am. subnebulosus. Steph. Nomen. 2d edit. col. 119.—Pol. multiguttatus. Curtis, fol. 544. “ Fuscous, iridescent: antenne nearly as long as the superior (anterior) wings in the male, spotted or annulated with ochre; superior (anterior) wings with innumerable ochreous spots, with a white dot on a fuscous space on the interior margin, and an oblique line-on the disc ; posterior tibie brown, especially the upper side in the male.”—Curtis, J. c. Also found, occasionally, within the metropolitan district, in June, and not uncommon in Scotland, in July. Genus XVI.—APHELOCHEIRA®* mihi. Antenne rather shorter than the wings, slender, placed somewhat remotely, and distinctly serrated within: palpi slender, maxillary ovate, the basal joints of nearly equal length, the terminal one scarcely longer than the others united, transversely wrinkled: head densely pilose on the crown: eyes globose : thorax short, ovate : wings ample, broad, anterior a little elongate, narrowed at the base, expanded near the apex, which is obtusely rounded; towards the tip are one or two very faint transverse nervures, but no vestige of one on the costa; hinder wings short, ovate, also with few indistinct transverse nervures: abdomen rather short and robust, compressed, the tip with two short horny processes in the males, obtuse in the females: legs rather short ; anterior tibia slender, with two short spurs at the apex, inter- mediate and posterior each with a pair of spurs at the apex, and a second pair below the middle ; hinder tibie rather stoutest and longest. The brevity of the antenne and wings, combined with the breadth of the latter, the few transverse nervures with which they are fur- nished, of which there are none about the middle of the costa; the simple unarmed anterior tibia, &c. sufficiently point out their _ distinction from the other genera of this family ; the wings are of sombre hue, more or less faintly freckled with a pale tinge, in some cases amounting almost to spots, as in the genus Philopotamus; but the general habit of the insects demands their separation from those insects. Sp: 1. flavomaculata? Prare xxxii. f. 3. var.—Fusco-brunnea, abdominis seymentorum marginibus pallidis, alis griseo-fuscis, anticis obsolete luteo macu- latis. (Long. corp. 2}—23 lin.; Exp. Alar. 6—S lin.) * AdgeXoe simplex, xe1p Manus. Ss ko 180 MANDIBULATA.—TRICHOPTERA. Hyd. flavomaculata. Pictet, p. 220. pl. xix. f. 2?—Aph. flavomaculata? Steph. Nomen. 2d edit. Appendix. Dusky-brown: head densely clothed with short griseous hairs; antenne ochreous, annulated with brown; abdomen with the margins of the seg- ments pale; anterior wings griseous- or tawny-brown, more or less obscurely freckled with yellowish, or ochreous, the nervures darker; posterior wings more transparent, iridescent and immaculate ; legs tawny- ochreous. The anterior wings are sometimes totally destitute of luteous spots, as in the individual whence the figure was taken. Apparently rare, or rather very local: found in June in Devon- shire, near Plymouth. Sp. 2. subaurata. Brunnea, pedibus ochraceo-fulvis, alis subfuscis, anticis immaculatis, aureo-pilosis. (Long. corp. 13 lin.; Exp. Alar. 52 lin.) Ti. subaurata. Steph. Catal. 317. No. 3578. Brown: head pale, clothed with short griseous hairs; legs pale tawny- ochreous; antenne ochreous, annulated with brown; wings somewhat fuscescent, the anterior clothed with a short golden pile, immaculate ; posterior more transparent and iridescent, with brown nervures. Found within the metropolitan district. Famity V.—SERICOSTOMIDAS mihi. Antenne shortish, robust, with the basal joint enlarged and longish, or slender, with the basal long and very hairy : palpz dissimilar in the sexes ; maxillary in the males triarticulate, with the terminal joint clavate or pilose, or spoon- shaped, and forming by their union a kind of mask ; in the females they are five-jointed, the terminal joint being slender; the second joint, in both sexes, rather long: wings long and narrow, sometimes very pilose, almost wholly destitute of transverse nervures, and the longitudinal ones not very distinct : posterior wings small, and but slightly folded on the inner margin: abdomen rather stout, the apex of the males armed with horny appendages, and of the females obtuse: legs moderate: ¢ibie mostly armed with spurs at the apex, the two hinder pair each with a pair above the tip. Larva robust, short, slightly attenuated to the apex, which is truncate, and furnished with short terminal processes; head and following segment scaly, the remainder soft and fleshy: in some instances the anterior angle of each thoracic segment is acutely pointed, in others rounded ; legs rather slender, hinder pair short: the larva resides in double flat cases, to which pieces of stone, &c. are fastened; or in slightly curved ones, which are attenuated at one end, and resemble shells belonging to the genus Dentalium. The insects of this family are gencrally of moderately large size, ee SERICOSTOMIDE.—BRACHYCENTRUS. 181 and are remarkable for the disparity that exists in the palpi of the sexes, the labial ones in the males being more or less clavate, and in the females having their terminal joint small; the wings are almost destitute of transverse nervures, and are usually rather thick, are of plain colours, rarely adorned with spots. The indigenous species may be thus divided into genera :— Tibiis anticis haud calcaratis : 6 0 6 - 18. Potomarta. bicalcaratis ; intermediis bicalcaratis: : é < . 19, SERICOSTOMA. quadricalcaratis ; Antennis remotis ; calcaribus brevibus : : . 17. BRACHYCENTRUS. approquintantibus ; art°. basali vix elongato: 5 . 20. Norrposta. elongato ; hirsutissimo : . 23. Mormonia. vix hirsuto ; (Palpis mavillaribus maris) divaricatis : . 21. Siro. recurvis. . . 22. GoERA, Genus XVII.—BRACHYCENTRUS, Curtis. Antenne remote at their origin, shorter than the wings, stout in the males, rather slender in the females, the basal joint slightly robust: maxillary palpi in the males short, diverging and very pilose, in the females long and slender: head rather small, transverse, pilose: eyes globose, lateral: thorax short, hairy: wings ample, broadest towards the apex, which is obtusely rounded ; anterior with a small triangular areolet on the disc between the stigma and the inner margin, from which arise four somewhat parallel nervures, which extend to the hinder margin, the following nervure is trifid, each branch becoming furcate on the margin, the second costal nervure is abruptly angulated before the stigma; posterior wings smaller, ovate, with the costal nervures bifid at the apex, the inner one simple: legs rather short: ¢ibie with a pair of short spurs at the apex, the intermediate and hinder pair with a second pair below the middle. These insects are rematkable for having the spurs of the tibiz very short ;*the antenne, which are of dissimilar degrees of robust- ness in the sexes, are placed somewhat remotely from each other; the palpi are short, diverging and very pilose in the males, but slender and longer in the females; the wings are less opaque than in the other genera of this family, and have the nervures distinct, with a conspicuous elongate-triangular areolet on the upper pair towards the apex of the disc. 182 MANDIBULATA.—TRICHOPTERA. Sp. 1. subnubilus. Wiger, alis fuscescentibus nervis piceis, anticis flavescente subnebulosus, tibiis tarsisque ochraceis. (Long. corp. 23—33 lin. ; Exp. Alar. 3—12 lin.) N. G. (557.) nubilus. Steph. Catal. 318. No. 3616.—Merie nubila. Steph. Nomen. 2d edit. col. 119.—Br. subnubilus. Phil. Mag. (Curtis) v. iv. p. 215. Black: head and thorax clothed with griseous hairs; wings pale fuscous, anterior with a slight tawny hue, the nervures pitchy, the areolets on the hinder margin, the small discoidal one, and the stigma yellowish in the middle, the inner margin and the edges of the transverse nervures dark fuscous ; posterior wings paler, immaculate, with the nervures dull pitchy ; femora dusky, tibie and tarsi pale ochreous ; antenne black. Taken in the New Forest and in Devonshire, and occasionally near London in June. Sp. 2. concolor. Ater, alis fuscescentibus, immaculatis, nervis piceis, tibiis tarsisque ochraceo-fuscis. (Long. corp. 24 lin.; Exp. Alar. 8 lin.) N. G. (557.) concolor. Steph. Catal. 318. No. 3617. Deep black: head and thorax clothed with blackish pile; wings pale fuscous, with darker or pitchy nervures ; anterior immaculate, posterior more trans- parent and paler ; femora blackish, tibie and tarsi dusky-ochre ; antennze stout and black. Also found, occasionally, near London, in June, and in Devon- shire. Sp. 3. costalis. Ater, alis fuscescentibus, immaculatis, costa stigmateque fuscis, nervis piceis, femoribus fuscis, tibiis tarsisque fusco-ochraceis. (ong. corp. 2) lin.; Exp. Alar. 8 lin.) N. G.(557.) costalis. Steph. Catal. 318. No. 3618. Deep black : head and thorax clothed with blackish hairs : wings pale fuscous, anterior immaculate, the nervures pitchy, costa and stigma fuscous ; femora fuscous; tibize and tarsi dirty-ochre. Taken in June, near London. Genus XVIII.—POTOMARIA, Leach MSS. Antenne shorter than the wings, moderately stout, the basal joint robust and slightly pilose: mavillary palpi clavate in the males, very short ; elongate, slender and pilose in the females, with the terminal joint short and attenuated: head small, pilose: eyes large, globose: thorax stout: wings narrow, anterior narrowed at the base, rounded at the apex, with a few transverse nervures towards the hinder margin, which is somewhat obtusely truncated obliquely : posterior wings small, ovate-triangular, slightly folded within: abdomen SERICOSTOMID.£©.—POTOM ARIA. 183 robust, obtuse, somewhat elongate: legs rather short and slender ; anterior tibie without spurs, intermediate with a pair at the apex, hinder with a pair at the apex, and a second pair considerably below the middle. These insects may be known by having the anterior tibize destitute of spurs, either in the middle or at the apex; the antenne are shorter than the wings and stout, with the basal joint slightly robust and a little pilose:—they are of large size, and have the wings obtusely rounded at the apex: they frequent running waters. Sp. 1. analis. Prare xsxiv. f. 4.—Nigra, alis fuscis, anticis macula anali alba, nebulisque basali albidis. (Long. corp. 44—6 lin.; Exp. Alar. 13—15 lin.) Phr. analis. Fabricius.—Po. analis. Steph. Catal. 318. No. 3622. Black : head densely clothed with a golden pile ; antenne deep brown, with darker clouds ; wings fuscous, with darker nervures, posterior immaculate, anterior more or less clouded with whitish towards the base, and with a somewhat triangular white spot on the anal angle; legs dirty-ochreous, femora dusky. Apparently rare: taken in July in the New Forest, near Brock- enhurst, and likewise in Devonshire. Sp. 2. assimilis. Nigra, alis fuscis, cupreo tinctis, immaculatis, tibiis tarsisque obscuré ochraceis. (Long. corp. 4—5 lin.; Exp. Alar. 13—14 lin.) Po. assimilis. Steph. Catal. 319. No. 3623. Black : head with a bright ochreous tuft behind; palpi and antenne dusky ; wings fuscous, immaculate, anterior with a coppery tinge, the nervures darker ; legs dusky, with the tibie and tarsi dirty-ochreous. Also found in the New Forest, in July, and in the north of England, and in Devonshire. Sp. 3. hyalina. Nigra, antennis gracilibus, brunneis, alis subhyalinis pallide fuscescentibus, immaculatus, palpis tibiis tarsisque ochraceis. (Long: corp. 44 lin.; Exp. Alar. 14 lin.) Po. hyalina. Steph. Catal. 319. No. 3624. Black: head with a pale tawny patch of hairs behind; palpi ochreous ; antenne slender, pale brown; wings somewhat transparent, pale fuscous, with darker nervures ; anterior immaculate, posterior rather dusky ; femora blackish ; tibize and tarsi ochreous. Inhabits the metropolitan district, in June. 184 MANDIBULATA.—TRICHOFTERA. Genus XIX.—SERICOSTOMA, Latreille. Antenne not so long as the wings, very stout, especially at the base, the basal joint robust, slightly pilose: maxillary palpi in the males recurved, densely hairy, the two united forming an obtuse rounded mask, concave within and convex without, and furnished with a silky pile within; in the females elongated, five-jointed, the terminal joint short and slender: head small, with a tuft between the antenne: eyes large: thorax robust: wings natrow, anterior without transverse nervures, somewhat obtusely rounded at the apex ; posterior smaller, elliptic-ovate, slightly folded on the inner margin: abdomen somewhat robust, obtuse: legs shortish, slender: ¢ibie all armed with a pair of spurs at the apex, the intermediate without a second pair below the middle, and the hinder with a pair near the apex. Larva some- what cylindric, with the head and following segment scaly above, the remainder soft: legs short, pilose. At the time of the appearance of my Catalogue, I was not aware that this genus had been named, as above, and characterised, by Latreille,* and therefore I could not employ his name, but adopted the very expressive one of Leach, from (Ipocwzov, persona,) the mask-like appearance of the male palpi, which had previously suggested a similar name to Spence for the only indigenous species, as referred to in my Catalogue. Sp. 1. Spencii. Pirate xxxiii. f. 2.—Fusco-nigrum, alis anticis sericeo-testaceis, aureo tinctis, antennis brunneis, basi punctoque verticis aurantiaco-ochraceis. (Long. corp. 4—5 lin.; Exp. Alar. 410—9?14 lin.) Prosoponia Leachii. Steph. Catal. 319. No. 3627.—Pro. Spencii. Kirby and Sp. Int. Ent. (4th edit. 1830) iii. 488.—Ser. Latreillii. Phil. Mag. (Curtis) v. iv. p. 214. Brown-black : antenne reddish-brown, with some scale-like hairs at the base, and a tuft on the crown orange-ochreous ; anterior wings testaceous-brown, with a golden silky gloss ; femora dusky-brown; tibiee and tarsi ochreous, the female has the antenne darker at their base, and the orange spot on the crown is less conspicuous; the mask on the face is wanting. In my Catalogue I named this conspicuous insect after my lamented friend Dr. Leach, whose brilliant career was suddenly obscured some years since, and has now, alas! within these few weeks been brought to a conclusion, his death having occurred on the 24th of August last, at Genoa. In Mr. Curtis’s sketch of the undescribed species of May-tlies, &c. he has * In Fam. Nat. p. 439. SERICOSTOMIDE.—-NOTIDOBIA. 185 followed Mr. Haliday in naming this species after Latreille ; but the following note* will show that his name must fall, it having been described long since in Kirby and Spence. Found in the New Forest, about Brockenhurst, in June and July ; also in the west of England, in South Wales, near Carlisle, in Scotland, &e. Genus XX.—NOTIDOBIA+ mihi. Antenne vouch shorter than the wings, very robust, especially in the males, in which sex they are somewhat serrated within; the basal jomt very slightly elongate, but robust and a little pilose: mawillary palpi short, somewhat divaricating and pilose in the males; longer and more slender, less pilose in the females, with the terminal joint elongate-ovate ; labial slender: head small, pilose: eyes large, subglobose: thorax stoutish: wings rather narrow, short, anterior narrowed at the base, rounded at the apex; all with a small ovate-triangular areolet towards the hinder margin, adjoining to which is a waved series of transverse nervures: abdomen short, robust and obtuse: legs short, stoutish ; ¢ibiw all armed with a longish pair of spurs at the tip, the intermediate and posterior each with a second pair delow the middle, lewest in the latter. The short incrassated basal joint of the antennee of this genus, * «ce But the animal distinguished by the most remarkable cheeks is a species of Phryganea, I. (Phryganea personata, Spence); for from this point projects a spoon-shaped process, which curves upwards, and uniting with that of the other cheek, forms an ample mask before the face, the anterior and upper margins of which, in the insect’s natural state, are closely united ; and the posterior part, being applied te the anterior part of the eye, causes the face to appear much swoln. It looks as if it was a single piece ; but, upon pressing the thorax, it opens, both above and in front, into two parts, each convex without and hollow within, and each having attached to its inside a ye!low tuft of hair resembling a feather.” To this account the following note is appended :— “This insect was taken both at Matlock and Exmouth. The body and thighs are of a light brown, wings testaceous, legs pale; antenne between setaceous and filiform, two-thirds the length of the body ; first joint not much thicker than the rest.”— Kirby and Sp. Int. iii. p. 489. (1826.) In the 2nd edition of this vol. p. 488 (published in 1830) the insect bears the name Prosoponia Spencii, as above given; the generic name being adopted from my Catalogue, which appeared in July 1829. T Norio humiditas, Brow vivo. Manpigunata, Vou. VI., Serr. 30TH, 1836. Ja 186 MANDIBULATA.—TRICHOPTERA. combined with the approximation of the insertion of the latter, the A-spurred posterior tibize, short, divaricatmg maxillary palpi, and slender labial ones, exclusively of the diversity in the formation of the wings, which have a distinct somewhat ovate areolet on the disc, towards the apex of the wings, the dark colour of the latter, and the brevity and stoutness of the antennz, serve to discriminate them from the allied genera of this family. Sp. 1. atrata. Migra, alis (anticis presertim) fuscis, ammaculatis, tibiis tarsisque obscure testaceis. (Long. corp. 4 lin.; Exp. Alar. 10—13 lin.) ° Phr. atrata. Fabricius.—Not. atrata. Steph. Catal. 319. No. 3626.—Ser. atratum. Pictet, p. 178. pl. xiv. f. 5, a—c. Black and pilose: antenne brown-black ; anterior wings deep brown, with a coppery tinge, and clothed with a short black pile, immaculate ; posterior wings rather paler; femora black; anterior and middle tibiz and tars? obscure testaceous, posterior pale testaceous, or ochreous. Not very uncommon: taken in June at Hertford; also in the New Forest. Genus XXI.—SILO, Curtis. Antenne shorter than the wings, the basal joint porrected, parallel, long, stout, cylindric, hairy: palpz pubescent, maxillary in the males diverging, slightly pilose, the three terminal joints of equal length: head small, hairy on the crown: eyes prominent: wings nearly twice as long as the body, obtusely lanceolate ; anterior with two costal nervures, then three furcate ones, and three others united near the disc, with a curved one near the hinder angle ; posterior wings small: abdomen short and robust: bie with a pair of spurs at the apex ; intermedizte and posterior with a pair also below the middle. This and the followmg genus are distinguished by having the basal joint of the antenne very much lengthened and robust, the two are parallel with each other and porrected; the males of the present genus are distinguished from those of the following by having the maxillary palpi divaricating and short; they are also very pubescent, and the females have the same organs rather stout, but slender at the apex; the neuration of the wings is also somewhat different in the two genera, which are, however, closely allied. Sp. 1. pallipes. Nigra, alis nigro-fuscis, immaculatis, pedibus pallide ochraceis. (Long. corp. 4 lin.; Exp. Alar. 9—11 lin.) Phr. pallipes. Fabricius —Not. pallipes. Steph. Catal. 319. No. 3625. § SERICOSTOMID.E.—SILO.—GOERA. 187 Black and slightly pilose: antenne dusky-black ; wings brown-black, imma- culate, anterior with a griseous tinge; legs pale ochreous. In some examples the wings are of a paler hue than others, while some are deep black. Rather common, in the neighbourhood of Hertford, in June and July. Genus XXII.—GOERA, Hoffmansege. Antenne longer than the wings, the basal joint stout, long and pubescent, _ parallel, the remainder very small, much attenuated at the apex: palpi pubescent; maxillary in the males recurved, and slightly clavate; of the females slender: head rather small, pilose : eyes somewhat prominent: wings rather broad, rounded at the apex, obtusely-lanceolate ; nervures not very distinct, two on the costa, then three furcate ones, followed by a curved one towards the posterior angle, which forms a dilated somewhat circular areolet towards the apex of the inner margin ; posterior wings small, slightly folded - within : legs rather short: ¢ibie all with a pair of spurs at the tip, the two hinder pair with another pair below the middle. _ As previously mentioned, these insects have the basal joint of the antenne porrected, elongate and robust, and the two are parallel with each other; the males are distinguished by having short maxillary palpi, which are recurved and closely applied to the head ; those of the female are long and slender; the wings have a very silken appearance, and have a conspicuous dilated and orbicular areolet towards the apex of the inner margin. Sp. 1. pilosa. Sericeo-ochracea, alis anticis subtestaceo-ochraceis, immaculatis, posticis subfuscescentibus, oculis nigris. (Long, corp. 35—5 lin.; Exp. Alar. _9—11 lin.) Phr. pilosa. Fabricius.—Goé. pilosa. Steph. Catal. 319. No. 3628. Ochreous: eyes black ; head and thorax clothed with silky pile; anterior “wings pale testaceous-ochre, immaculate and silky ; posterior somewhat fuscous; legs pale ochreous; antennze brownish-ochre, the basal joint palest. | Abundant, in July and September, at Hertford; found also in other parts of the country. Sp. 2. flavipes. Sericeo-ochracea, thorace abdomine coxis femoribusque fuscis. (Long. corp. 33—5 lin.; Exp. Alar. 10—12 lin.) Goé. fuscata. Steph. Catal. 319. No. 3630.—Goé. flavipes. Phil. Mag. (Curtis) v. iv, p. 215. 2a2 188 MANDIBULATA.—TRICHOFTERA. Ochreous: eyes dusky; thorax and abdomen blackish, clothed with silky pile; anterior wings silky-ochreous, immaculate, beneath fuscous ; posterior somewhat fuscous; legs fuscous; tibie and tarsi pale ochreous; antennz brown, the basal joint clothed with ochreous hairs. Less abundant than the last, but found in plenty within the metropolitan district, at Hertford, Ripley, &c. Sp. 3. vulgata. Nigra, alis flavo-testaceis immaculatis, pedibus ochraceo-flavis. (Long. corp. 33 lin.; Exp. Alar. 10 lin.) Phr. vulgata. Olivier.—Goé. vulgata. Steph. Catal. 319. No. 3629. Black, clothed with silky hairs; wings testaceous-yellow, immaculate ; posterior slightly paler; legs wholly pale ochreous-yellow ; antenne ' . dusky. Found, in June, near London, and in Devonshire ; not common. tSp. 4. irrorata. Ochracea, alis anticis subochraceis, punctis numerosis indis- tinctis albidis, antennis piceis ochraceo subannulutis. (Long. corp. — lin.; Exp. Alar. 7 lin.) Goé. irrorata. Phil. Mag. (Curtis) v. iv. p. 215.—Steph. Nomen. 2d edit. Appendix. «‘ Ochreous, pubescent : antenne piceous, slightly annulated with ochre, the basal joint long, stout, and very hairy ; wings very pale fuscous; superior (anterior) subochreous, with numerous indistinct whitish dots.” — Curtis, l. e. Tf know not this species, nor its locality. Genus XXIII.—MORMONIA, Curtis. Antenne approximating at the base, rather longer than the wings, the basal joint robust, considerably elongated, very pilose, and the two parallel and porrected, the apical joints very slender : palpi moderate, maxillary in the males porrected, slightly clavate and thickly clothed with short hairs ; labial slender: head small, very pilose: eyes globose, rather prominent: thorax densely hairy: wings moderately ample, anterior somewhat ovate- Janceolate, and rather diaphanous, with few or no transverse nervures, especially on the inner margin, towards the base of which is a patch densely clothed with longish erect hairs; posterior rather small: abdomen shortish and robust : legs slenderish: tibia all furnished with a pair of spurs at the apex, the two hinder ones each with a second pair below the middle. These insects may be known by having the antenne placed some- what closely at their origin, and by their slenderness, the great length and hairiness of the basal joint, pilosity of the head, and brevity of the palpi in the males, and their slenderness in the S19 SERICOSTOMIDZ.—MORMONIA. 189 \ females; the wings are somewhat hyaline, short and narrow, and the anterior pair are adorned with a dense hairy patch at the base within. Sp. 1. nigromaculata. Prater xxxii. f. 2.—Fusco-brunnea, oculis nigris, pedibus antennisque ochraceis, his brunneo annulatis, alis fuscescentibus, anticis nigro irroratis. (Long. corp. 23 lin.; Exp. Alar. 93 lin.) Goé. nigromaculata. Steph. Catal. 319. No. 3633. Fuscous-brown: hairy; eyes black; wings fuscescent, with darker nervures, minutely sprinkled, especially the anterior, with black dots, particularly in the direction of the nervures ; abdomen on its sides and apex, and the legs ochreous ; antenne pale ochreous, with brown rings. Found, but very rarely, in June, near I.ondon, and in Devon- shire. Sp. 2. hirta. Fusco-brunnea, alis anticis maculis duabus obscuriortbus, pedibus pallidis, antennis pallidis brunneo annulatis. (Long. corp. 3 lin.; Exp. Alar. 9—10 lin.) Phr. hirta. Fabricius—Goé. hirta. Steph. Catal. 319. No. 3631.—Mor. gra- cilicornis. Phil. Mag. (Curtis) v. iv. p. 215 3. Fuscous-brown: palpi and eyes black, very hairy ; anterior wings hairy, pale fuscous-brown, with an ochreous hue, and two obscure clouds, or spots, one on the disc, the other towards their inner margin ; the extreme hinder margin is also slightly obscure; posterior wings nearly glabrous and fuscous ; legs and antenne pale, the latter annulated with fuscous or brown, with the basal joint very pilose. Not uncommon, within the metropolitan district, in June, about Hertford, Ripley, &c. ; found also in the New Forest, in Devonshire, near Oxford, &c. Sp. 3. immaculata. Ochraceo-brunnea, alis anticis pallide brunnets immaculatis, antennis ochraceis fusco punctatis. (Long. corp. 23—3z lin. ; Exp. Alar. 9—10 lin.) Goé. immaculata. Steph. Catal. 319. No. 3632.—Mor. maculicornis. Phil. Mag. (Curtis) v. iv. p. 215? Ochreous-brown, or dusky, very pubescent: eyes black; anterior wings pale brown, immaculate ; posterior fuscescent ; legs pale ochreous; antenne ochreous, dotted with fuscous above. Found, in the vicinity of Hertford, in June; also in Devonshire. Sp. 4. minor. Ochraceo-brunnea, cculis nigris, alis hyalinis, iridescentibus, 190 MANDIBULATA.—TRICHOPTERA. immaculatis, pedibus antennisque ochraceis. (Long. corp. 2 lin.; Exp. Alar. 44 din): Mor. minor. Steph. Nomen. 2d edit. Appendix. Ochreous-brown: eyes black; wings hyaline, iridescent, immaculate, pilose ; legs and antenne pale ochreous, the latter faintly annulated with fuscous. Taken, in June, in Devonshire. Famity VI.—PSYCHOMIDA, Curtis. Antenne stoutish, not exceeding the length of the wings: maxillary palpi similar in the sexes and 5-jointed, the terminal one elongate-filiform : wings narrow, obtuse, or acute, without transverse nervures ; anterior with three or four bifid ones on the hinder margin; posterior small, resembling the anterior, but not folded within; cilia of all short: abdomen stoutish and short: legs moderate: anterior ¢ibie sometimes without spurs at the apex, * two hinder ones each with a pair at the tip, and a second pair towards the middle. i The insects of this family, like the Hydropsychide, have the terminal joint of the palpi very long and slender; but from them they may be known by the slenderness of the wings, which are totally destitute of transverse nervures: the only indigenous genus frequents mountain torrents, which I believe to be the case with the other genera of this family. Genus XXIV.—CHIMARRA, Leach. Antenne scarcely so long as the wings, especially in the females, somewhat robust, the basal joint longest, subovate, some of the following short, the remainder oblong: palpi rather long, maxillary with the 2nd and 3rd joints very long, the apical one slender ; labial with the terminal joint nearly as long as the two others united, and filiform: head subglobose: eyes globose, very prominent: thorax ovate: wings slightly deflexed during repose, _ destitute of transverse nervures ; anterior elongate, narrow, rounded at the apex, with about nine longitudinal nervures, of which the four which extend to the hinder margin are more or less deeply bifurcate: posterior wings small, not folded: abdomen short, furnished with a short recurved process - at the apex in the females: /egs rather long and stout, anterior the shortest, their tibia without spurs at the tip, the others with a longish pair at their ‘apex, another pair above the middle in the intermediate, and the posterior with a pair below the middle: the intermediate tibize of the females at the apex, and the basal joint of their tarsi, slightly dilated. PSYCHOMID.Z.—CHIMARRA. 19) The only indigenous genus of this family, and may be recognised by having the palpi very long, with the 2nd and 3rd joints consider- ably lengthened and stoutish, the terminal one slender: one species only occurs in Britain. Sp. 1. marginata. Prate xxxiii. f. 4. var. ?2.—Fusco-nigra, alis costa, margine postico, lineisque aliquot anticarum ochraceo-flavis. (Long. corp. 4—5 lin. ; Exp. Alar. 6—9 lin.) Phr. marginata. Linné.—Chi. marginata. Steph. Catal. 318. No. 3621.— Curtis, v. xii. pl. 561. Brown-black: head and basal joint of the antenne bright ochreous ; crown black; thorax with its anterior edge, or the collar, bright ochreous ; anterior wings with the costa, the extreme hinder margin, and one or two of the inner longitudinal nervures, bright ochreous-yellow, the other nervures dusky ; posterior wings, with the upper portion of the costa, bright ochreous ; legs ochreous, the anterior pair and tips of the hinder tibie palest ; the base of the femora and apex of the anterior tarsi blackish. Some examples—as in the one figured—are of a paler hue, and have the yellow edgings to the anterior wings, the oblique nervures, and the collar of a faint _ brownish-ochreous. Found on the banks of torrents in England and Ireland ; about Dunlough Gap, near Killarney, and near Plympton in Devonshire, very abundantly ; also im Cumberland and South Wales. Famity VII—LEPTOCERIDA, Leach. Untenne slender, considerably longer than the wings, sometimes four or five times as long, setaceous: maxillary palpi similar in the sexes, 5-jointed, long, and generally hairy: wings furnished with several transverse nervures, mostly disposed in an irregularly waved line, a little beyond the middle ; anterior pair very long and narrow, posterior smaller and much folded within: abdomen moderate or short, rarely long: legs short, or somewhat elongate: tibie with spurs at the apex, and the two hinder pair frequently with others below the middle. Larva long and slender, without external lateral respiratory organs, the latter generally short, the four anterior segments and legs bristly, the latter sometimes slender and elongate, at others short and stout: it inhabits an elongate moveable case, in which it changes to pupa. The insects of this family are usually of a gregarious nature, and may be sometimes observed, especially towards evening, in large flocks, like gnats, sporting about, near the edge of slowly running and quiet streams; they are rendered very conspicuous by 192 MANDIBULATA.—TRICHOPTERA. the great length of the antennz, which are sometimes four or five times as long as the body, and are usually very slender; the wings, especially the anterior, are also long and narrow; the legs short, sometimes having only a single pair of spurs on each of the four posterior tibie ; the eyes are in general very prominent, and the palpi hairy. The indigenous species have been divided into the following genera :-— Tibiis posterioribus bicalcaratis s Palpis maxillaribus arts. 2-bus basalibus brevibus : . 26. CERACLEA. art°. basali solo breve : 5 - 27. LErTocERvs. Tibiis posterioribus quadricalcaratis ; Aniennis gracilibus alis longioribus (in masculis denticulatis): 25. ODONTOCERUS. incrassatis, haud alis longioribus, haud denticulatis: 28. MoLanna. © Grnus XXV.—ODONTOCERUS, Leach. Antenne somewhat longer than the wings, stoutish at their base, their inner edge regularly denticulated nearly to the apex, which is slender, the basal joint elongate, porrect and robust: palpi very pilose, maxillary with the three basal joints rather short, somewhat cylindric and of equal length; the 4th elongate, 5th scarcely pilose, rather shorter than the 4th: head small, transverse: eyes large, subglobose: thorax robust: wings rather long ; anterior elongate-elliptic, rounded at the apex, the 2nd longitudinal nervure furcate from about its middle, the 3rd bifid nearly from the transverse nervure, the remainder simple and parallel, but the 4th is bifid in the females ; posterior elongate-triangular: abdomen rather stout, obtuse at the apex in both sexes: /egs shortish: anterior and intermediate tibie with a pair of short spurs at their apex, and the latter with a long pair near the base, hinder ones with a long pair near the apex, and a similar pair on the tip itself. Larva robust, fleshy, broad, cylindric, truneate at the apex: legs short and slightly pilose. The denticulated antenne of these insects, exclusively of the difference in the structure of the palpi, the neuration and opacity of the wings, the double-spurred posterior tibize, &c. sufficiently point out their distinction as a genus; to which may be added, that the posterior legs of the larvee are shorter than the 2nd pair, and the larva itself is robust and somewhat cylindric. Sp. 1. albicornis. Pxrave xxxiv. f. 1 9.—Griseo-fuscus, alis griseis aut canes- centibus vix maculatis, antennis albido-ochraceis. (Long. corp. 4—6 lin. ; Exp. Alar. 15—18 lin.) Hl ADO WAY, LEFTOCERID£Z.—ODONTOCERUS.—CERACLEA. 193 Phr.’ albicornis. Scop. Ent. Car. No. 689.—Odo. griseus. Leach.—Steph. Catal. 319. 'No. 3635. Dusky-brown: head griseous, with whitish hair in the front ; palpi brown ; thorax with griseous hairs in front, and some obscure spots beneath, at the insertion of the legs, which are dull ochreous; anterior wings griseous in the male, and with a hoary tinge in the female, the nervures prominent, dusky, especially the transverse ones, which are edged with the same ; several of the areolets are clouded with a paler tinge ; cilia and posterior wings fuscous ; antenne pale, whitish-ochreous. Found, occasionally, near London, in June and July; abundant about Cheltenham and in Devonshire ; also common about Carlisle, in Scotland; Ireland, near Killarney ; and in Norfolk. +Sp. 2. maculipennis. Niger, alis anticis ochraceis nigricante maculatis, pedibus fulvis anticis femoribusque obscuris. (Long.corp. — lin. ; Exp. Alar. 16 lin.) Odo. maculipennis. Phil. Mag. (Curtis) v. iv. p. 214.—Steph. Nomen, 2d edit. Appendix. «Pubescent, black: head and thorax griseous, scutellum ochreous ; superior (anterior) wings ochreous ; nervures, margin, and cilia black, a spot on the costa, the stigma, another beyond it, a large one at the posterior angle, and several small ones round the disc, pale black; legs fulvous, anterior pair and thighs dusky.”— Curtis, l. c. “© New Forest, in June.”— Curtis, 1. c. Grexus XXVI.—CERACLEA, Leach. Antenne slender, very much longer than the wings, not denticulated within, the hasal joint rather short and stout, the terminal ones extremely slender: palpi very pilose; maxillary with the two basal joints short, the 3rd elongate, 4th shorter than the 3rd, 5th slender, slightly pilose: head small, densely hairy in front: eyes large, subglobose: thorax stout: wings trans- parent ; anterior elongate, narrow, rounded at the apex, nervures very distinct, the 3rd and 5th bifid at the tip; posterior obtusely triangular ; cilia of all short: abdomen short, rather slender in the males, stout and obtuse in the females: legs shortish; tibia all furnished with a pair of spurs at the apex only; intermediate and posterior pair somewhat bristly beneath. The antennz of Ceraclea are remarkably long and slender, which character, united to the transparency of the wings, their conspicuous nervures, the two short basal joints of their palpi, robust thorax, &c.. serve to distinguish the genus from Leptocerus, in which genus the Manopisutata, Vou. VI., Serr. 30rn, 1886. 2B 194 MANDIBULATA.——TRICHOFTERA. four posterior tibia, in common with Ceraclea, are armed with spurs at the apex alone. Sp. 1. nervosa. Mgra, alis anticis griseis, nervis fuseis, posticis hyalinis obscuris, pedibus obscuré ochraceis, nebulis obscurioribus. (Long. corp. 4 lin.; Exp. Alar. 11—13 lin.) Phr. nervosa. Latrezlle.—Cer. nervosa. Steph. Catal. 319. No. 3635. Black: head with a whitish patch of hair between the antenne, the latter spotted with white, especially beneath ; anterior wings griseous, with black nervures ; posterior transparent, dull fuscous, with darker nervures ; legs obscure ochreous, varied with darker shades. Abundant, at the end of May and in the beginning of June, in Bat- tersea-fields, near Hammersmith, Putney, and along the banks of the Thames; also taken near Killarney, in the Reeks Mountains. Genus XXVII.—LEPTOCERUS, Leach. Antenne much longer than the wings, especially in the males, slender, not denticulated within, the basal joint shortish and robust: palpi in general very hairy ; maxillary with the basal joint short, the remainder elongate, the terminal one slender, and sometimes apparently divided into a 6th joint: head small, pilose: eyes large, subglobose : wings long and narrow, rounded at the apex, nervares not very distinct, variable in position, as shown in the sectional divisions: cilia short: abdomen rather long and slender: legs slender: ¢ibie@ each furnished with a single pair of spurs at the apex alone. Larva slender, fleshy, attenuated behind and truncate at the apex ; legs long and slender, the hinder pair especially. Leptocerus, like Ceraclea, is distinguished by having the antennze remarkably long and slender, in some cases exceeding the length of the body four or five times; the basa] joint alone of the palpi is short, the terminal one sometimes very long, and apparently divided about its middle, producing the appearance of a sixth jomt; the wings are long and opaque, with the nervures rather indistinct, but varying in position at the apex, or hinder margin, of the wing: the genus probably requires division, the first and last sections being very dissimilar to each other; the former one, as containing the type of Latreille’s genus Mystacide, might retain that name, while a new one is required for the other. LEPTOCERID£.—LEPTOCERUS. 195 § A. Apical areolets of anterior wings formed by a slightly curved line of transverse nervures:—Mystacipe, Latr. Sp. 1. ochraceus. Pallide ochraceus, oculis atris, thorace ferrugineo, lineis 3-bus longitudinalibus obscuris, alis posticis hyalinis. (Mong. corp. 34—4 lin. ; Long. Antennarum 15—16 lin.; Exp. Alar. 12—13 lin.) Le. ochraceus. Curtis, v. ii. f. 57.—Steph. Catal. 319. No. 3636. < Pale dull ochre colour: eyes black ; antenne towards their apex and annu- lations fuscous ; head and thorax ferruginous, the latter with three longi- tudinal fuscous obscure stripes; abdemen cinereous; superior (anterior) wings long, lanceolate, rounded; cilia fuscous ; inferior (posterior) wings semitransparent ; legs pale.’”—Curtis, l. c. Found on palings in the Regent’s Park, and at Benacre, in Suffolk, by Mr. Curtis. +Sp.2. testaceus. Rufescente-oehraceus, oculis nigris alis posiicis hyalinis apice subfusco. (Long. corp. — lin.; Exp. Alar. 8 lin.) Lep. testaceus. Phil. Mag. (Curtis) v. iv. p. 214,—Steph. Nomen. 2d edit. Appendix. <¢ Reddish-ochre, very pubescent: antenne long ; eyes black; cilia fuscous ; inferior (posterior) wings transparent, subfuscous at their tips.” —Curiis, l. c. Locality net known to me. Sp. 3. obtusus. Miger nitidus, antennis pedibusque brunneis, alis fuscis, anticis rotundato-obtusis. (long. corp. 3—3} lin.; Long. Ant. 8—9 lin.; Exp. Aiar. 73—8 lin.) ! Lep. obtusus. Steph. Nomen. 2d edit. col. 120. Shining black : eyes dull black ; antenne very long, brown, with the base and upper surface dusky ; wings somewhat hyaline, fuscous, with dusky ner- vures, the anterior pair very obtuse at the apex; legs brown ; tibie and tarsi with an ochreous tinge on the outer edge. Not common; found, occasionally, within the metropolitan district, in July. Sp. 4. nigricans. Niger nitidus, antennis albo annulatis, alis fuscts, pedibus brunneis, tarsis ochraceis. (Long. corp. 3% lin.; Long. Ant. 73 lin.; Exp. Alar. 9 lin.) Lep. nigricans. Steph. Catal. 320. No. 3648. Blackish and shining: eyes black; antenne annulated with white; wings fuscous, with darker neryures, the anterior pair obtuse at the apex ; legs brown ; tarsi ochreous. Found, in June, near London. 196 MANDIBULATA.—TRICHOPTERA. Sp. 5. ater. After, oculis nigris antennis nigro alboque subannulatis, alis imma-= culatis subiridescentibus, pedibus nigris. (Long. corp. 3 lin.; Long. Ant. 7§ lin.; Exp. Alar. 9 lin.) ; Mys. phea. Steph. Catal. 320. No. 3661.—Mys. atra. Pictet, p. 169. pl. xii. Sf: 4 Dull obscure black, with the antenne faintly annulated with white; the maxillary palpi long aud hairy; the wings immaculate, slightly ciliated, and a little iridescent ; posterior nearly as dark as the anterior. Larva slender, bright pale ochreous, with numerous black dots, forming y-like marks on the head and two first thoracic segments, the 3rd segment with two black dots ; legs ochreous, dotted with black. Taken near London, in June; but apparently rare. Sp. 6. niger. Niger nitidus, alis anticis splendid? chalybeo-nigris, oculis rufis, antennis nigro alboque annulatis, pedibus brunneis. (Long. corp. 3—33 lin. ; Long. Ant. 9 lin.; Exp. Alar. 83—93 lin.) Phr. nigra. Linné.—Mys.? nigra. Steph. Catal. 320. No. 3659. Bright shining black: eyes bright red during life, brown after death: antenne very long, annulated with black and white ; anterior wings of a rich bluish- or steel-black, and very glossy, with an obscure patch towards the apex of the inner margin; legs brown. Larva attenuated behind, very pale ochreous, the head and two anterior segments of the thorax spotted with black, the following segment with two or three black dots ; legs also dotted with black, and very slender, the hinder pair considerably elongated. A specimen—which I supposed was the Ph. azurea of Linné—in my collection, has the antenne of a pure white, and only four lines long; the anterior wings of a rich violet. Extremely abundant, in June and July, within the metropolitan district ; found also in Devonshire and in Scotland. § B. Anterior wings with the 2nd and 8rd nervures bifid on the hinder margin. Sp. 7. perfuscus. Niger, alis anticis fusco-brunneis, immaculatis, posticis saturate fuscis, antennis albo nigroque annulatis, pedibus ochraceis. (Long. corp. 3 lin. ; Long. Ant. 12 lin. ; Exp. Alar. 9 lin.) Lep. perfuscus. Steph. Catal. 319. No. 3640. Black : palpi brown ; head with a brownish tuft of hairs between the antenne, the latter very long and annulated with black and white; anterior wings rich fuscous-brown, with a coppery tinge, immaculate; posterior dark fuscous, a little brownish at the base; legs pale ochreous, especially the tarsi. Found, in the vicinity of London, in June. LEPTOCERIDE. —LEFTOCERUS. 197 Sp. 8. aureus. Miger, cano pilosus, antennis albo annulatis, alis anticis aureo- Sericeis, posticis griseis, iridescentibus, pedibus pallidis, tarsis albis brunneo- annulatis. (Long. corp. 3 lin.; Long. Ant. 10 lin.; Exp. Alar. 10—11 lin.) Lep. tarsalis. Steph. Catal. 319. No. 3641.—Mys. aurea. Pictet, p. 162. pl. xiii. f. 1. Black, clothed above with a hoary down; palpi griseous ; antenne annulated with black and white ; anterior wings thickly covered with a short golden pile, with a brighter spot towards the apex of the inner margin; posterior griseous and iridescent ; legs dull ochreous, with the tips of the tibie brown ; tarsi white, annulated with brown. Also taken near London, and obtained from the Marshamian collection. Sp. 9. annulatus. Niger, alis brunneis, maculis holosericeo-fulvescentibus ornatis, paipis, pedibus, antennisque brunneis, his albo subannulatis. (Long. corp. 3 lin.; Long. Ant. 9 lin. ; Exp. Alar. 10—11 lin.) Phr. annulata. Gmelin, p. 2367.—Lep. subannulatus. Steph. Catal. 319. No. 3642, Deep black: antenne slender, above twice the length of the wings, brown, annulated with white at the base, indistinctly so at the apex ; palpi and legs brown; hinder tibie obscure; anterior wings brown, glossy, and adorned with a few yellowish hairs, forming rather ill-defined spots ; cilia black ; posterior wings griseous, with fuscous cilia. Obtained from Marsham’s cabinet : locality unknown. Sp- 10. dissimilis. Fulvo-ochraceus, oculis nigris, antennis albidis, brunneo annulatis, alis anticis griseo-ochraceis, immaculatis, posticis hyalinis concinné iridescentibus. (Long. corp. 3 lin.; Long. Ant. 8 lin.; Exp. Alar. 8i—9 lin.) Lep. dissimilis. Steph. Catal. 319. No. 3637. Bright tawny-ochreous, inclining to ferruginous on the thorax ; eyes black ; antenne whitish, annulated with brown: anterior wings griseous-ochre, immaculate ; posterior very transparent and beautifully iridescent ; abdomen -greenish-brown ; legs pale ochreous. Common, at Hertford, in June; also found in other places within the metropolitan district. Sp. 11. bimaculatus. Niger, alis fuscis, anticis macula laterali duplici flava, aut grised. (Long. corp. 2} lin. ; Long. Ant. 7 lin.; Exp. Alar. 9 lin.) Phr. bimaculata. Linné.—Lep. bimaculata. Steph. Catal. 320. No. 3645. Black; antenne black, faintly annulated with whitish towards the base ; wings fuscous, anterior with a lunate yellowish or griseous spot about the middle 198 MANDIBULATA.—TRICHOPTERA. of the inner margin, and a second smaller one a little beyond; posterior immaculate ; legs pitchy-brown. Taken, but rarely, near London, in July. Sp. 12. interruptus. Miger, alis fuscis, anticis strigis aliquot interruptis niveis, margineque postico albo punctato. (Long. corp. 23—3 lin.; Long. Ant. 83 lin. ; Exp. Alar. §—93 lin.) Phr. interrupta. Fabricius Donovan, v. xvi. pl. 551.—Lep. interruptus. Steph. Catal. 320. No. 3650. Black: antenne annulated with white; crown with a white patch ; palpi pale ; wings fuscous, anterior with about three or four transverse snow- white streaks, forming, as it were, interrupted lines, the Ist before the middle, the 2nd rather beyond the middle, and a 3rd placed obliquely towards the apex ; the hinder margin frequently dotted with white on the cilia ; posterior wings more transparent, immaculate; legs pale. The number and position of the niveous streaks on the anterior wings vary slightly. Abundant in the north of England and in Scotland, frequenting the borders of lakes, in June and July: taken also on the banks of the Tay, in Devonshire. Sp. 13. affinis. Azer, antennis albo annulatis, alis anticis punctis duobus mar- ginalibus albis, pedibus subochraceis, tarsis albis. (Long. corp. 3 lin.; Long. Ant. 6 lin.; Exp. Alar. $3 lin.) Lep. affinis. Leach MSS.—Steph. Catal. 320. No. 3657. Deep black: antenne annulated with white; anterior wings with two white spots on the margin, a little beyond the middle, one of them on the costa, the other on the inner margin; posterior immaculate; legs somewhat ochreous, clouded with blackish ; tarsi white. Found in the north of England, near Carlisle, in June. § C. Anterior wings with the 2nd nervure bifid, the 5th trifid, on the hinder margin. Sp. 14. assimilis. Viridiefuscus, oculis brunneis, antennis albo fuscoque annu- latis, alis anticts griseo-ochraceis, immaculatis, posticis hyalinis, iridescentibus. (Long. corp. 23—3 lin. ; Long. Ant. 7 lin.; Exp. Alar. 8—9 lin.) Lep. assimilis. Steph. Catal. 319. No. 3638. Green-brown: head clothed with hoary pile in front ; antenne annulated with fuscous and white; thorax with a faint pale longitudinal streak ; anterior wings plain, immaculate, griseous-ochre ; posterior hyaline, iridescent ; legs pale ochreous ; tips of the tarsal joints brownish. Found, not uncommonly, near London, in June. LEPTOCERID.E.—LEPTOCERUS. 199 Sp- 15. annulicornis. Pallide fuscus, antennis albis, nigro annulatis, palpis pedibusque ochraceis, alis anticis griseo-brunneis, posticis subhyalinis, fusces- centibus. (Long. corp. 2;—3 lin.; Long. Ant. 6 lin.; Exp. Alar. 9—10 lin.) Lep. annulicornis. Steph. Catal. 319. No. 3639. Pale fuscous: antenne black, annulated with white ; palpi ochreous ; anterior wings griseous-brown, immaculate; cilia rather pale; posterior wings slightly hyaline, brownish; legs pale. Also taken, not very commonly, near London, in June. Sp. 16. seminiger. Wiger, antennis albo-annulatis, alis anticis griseo-ochraceis, posticis atro-fuscis, immaculatis, pedibus pallidis. (Long. corp. 3 lin. ; Long. Ant. 6 lin.; Exp. Alar. 9 lin.) Lep. seminiger. Steph. Catal. 319. No. 3643. Black: antenne annulated with white; palpi ochreous; anterior wings griseous-ochre, with a very faint paler ochreous dot before the middle of the inner margin, two or three others placed obliquely towards the apex of the wings ; posterior deep fuscous, immaculate ; legs pale. Found near Hertford, and in the New Forest, in June and July. Sp- 17. cinereus. Cinereo-fuscus, alis anticis cano pubescentibus, costa nebulisque aliquot subochraceis, tibiis tarsisque albido-ochraceis. (Long. corp. 4—44 lin. ; Long. Ant. 10 lin. ; Exp. Alar. 12—13 lin.) Lep. grossus. Steph. Catal. 320. No. 3644.—Lep. cinereus. Phil. Mag. (Curtis) v. iv. p. 214. Fuscous: eyes black; “antennz very long, black, annulated with white, clothed with griseous hairs; wings fuscous; superior (anterior) clothed with grey pubescence ; costa slightly ochreous, as well as some iridescent marks; a small portion of the base of the inferior (posterior) wings pale ochreous ; tibie and tarsi of the same colour.”—Curtis, /. c. Inhabits the vicinity of London, and the New Forest, in July. Sp. 18. filosus. Wiger, capite infra fulvo, antennis gracilibus brunneo alboque annulatis, alis anticis ochraceo-brunneis, marginibus flavescentibus, posticis hyalinis iridibus, pedibus pallidis brunneo annulatis. (Long. corp. 3—33 lin. ; Long. Ant. 7 lin.; Exp. Alar. 11 lin.) Phr. filosa. Linné.—Lep. filosus. Steph. Catal. 320. No. 3646. Black: head yellowish beneath ;~palpi and antenne brown, the latter very slender and long, annulated with white from the base to the middle 3 anterior wings clear pale brown, somewhat transparent and immaculate, the costal and inner margins pale tawny ; posterior wings more transparent and iridescent; legs whitish, faintly annulated with brown. Taken near London, in June. 900 MANDIBULATA.—TRICHOPTERA. Sp. 19. caliginosus. Niger, antennis tenuissime albo annulatis, alis brunnes- cente-fuscis, immaculatis, posticis bast subiridescentzbus, pedibus ochraceo- brunneis, tarsis pallidioribus. (Long. corp. 3 lin.; Long. Ant. 11 lin. ; Exp. Alar. 9—10 lin.} Lep. ater. Steph. Catal. 320. No. 3647. Deep black : antenne with very narrow white rings ; wings brownish-fuscous, immaculate ; posterior a little darker, and slightly iridescent, especially at the base ; legs ochreous-brown, with the tarsi paler. In this and the following insect, as well as the immediately preceding one, the third, or hinder twig of the 5th nerve arises nearly upon the transverse nervure. Pictet having a Mys. atra (described in p. 196), it becomes necessary to change the name I had applied to this species. Common, within the metropolitan district, in June and July. Sp. 20. aterrimus. Azer, antennis albo tenuissime annulatis, alis fusco-nigris, nervis saturatioribus, pedibus fuscis. (Long. corp. 3 lin.; Long. Ant. 63 lin. ; Exp. Alar. 8$—9¢ lin.) Lep. aterrimus. Steph. Catal. 320. No. 3649. Deep black: antenne with slender white rings ; palpi fuscous; wings brown- black, with darker nervures, and immaculate; posterior somewhat paler ; legs fuscous. Also common, in the vicinity of the metropolis, in June and the beginning of July. Sp. 21. bilineatus. Miger, palpis antennisque brunneis, his obscurt flavo annulatis, alis brunnets, lineis 2-bus abbreviatis albidis, pedibus ochraceis. (Long. corp. 23 lin. ; Long. Ant. 6 lin.; Exp. Alar. 8 lin.) Phr. bilineata. Zinné.—Lep. bilineatus. Steph. Catal. 320. No. 3651. Black: palpi brown; antennz brown, with several of the lower articulations faintly annulated with ochreous; anterior wings brown, each with three oblique whitish lines or streaks, one of them on the inner margin, forming a streak common to both wings, the other two towards the apex of the costa ; posterior wings hyaline and iridescent ; legs ochreous, the tarsi faintly annu- lated with brown. Not common: taken in June near London. § D. Anterior wings (sometimes very narrow) with the nervures rather indistinct, the 2nd nervure alone bifid on the posterior margin. Sp. 22. quadrifasciatus, Niger, alis ochraceo-testaceis, anticis fasciis quatuor latis nigris posticis immaculatis. (Long. corp. 2{—3 lin.; Long. Ant. 7 lin. 3 Exp. Alar. 8—10 lin.) LEPTOCERID£.—LEPTOCERUS. 201 Phr. quadrifasciata.. Fabricius.—Lep. quadrifasciatus. Steph. Catal. 320. No. 3656. Black: antenne annulated with black and white ; wings dull ochreous-testa- -ceous, anterior with four broad black bands, placed nearly equidistantly, the fourth at the apex; posterior immaculate, paler; nervures dusky ; abdomen greenish-brown; legs pale, hinder femora dusky. - Not very abundant: taken occasionally near London, but more frequently in Devonshire and in Scotland. Sp. 23. longicornis. Fuscus, alis anticis griseo et nigricante variis, posticrs _griscis immaculatis, antennis pedibusque pallidis. (Long. corp..3 lin.; Long. - Ant. 9 lin.; Exp. Alar. 93 lin.) Phr. longicornis. Linné.—Lep. longicornis. . Steph. Catal. 320. No. 3655. Pale fuscous: eyes black; antenne whitish, about thrice the length of the body ; anterior wings pale griseous, varied with dusky or blackish dots ; posterior griseous and immaculate ; legs whitish. Apparently rare: taken in June near London. Sp. 24. rufo-griseus. | Fuscus, alis anticis rufo-griseis, atomis pallidioribus, posticis fuscis, subhyalinis, pedibus pallidis, antennis albis nigro maculatis. (Long. corp. 24 lin.; Long. Ant. 9 lin.; Exp. Alar. 73—8 lin.) Uep. rufogriseus. Steph. Catal. 320. No. 3652. Fuscous: eyes black; anterior wings griseous-red, with numerous fainter atoms; posterior somewhat transparent, fuscous, darkest on the margins; abdomen pale; legs whitish; antenne very slender, white, with narrow black rings. Not common: found in Devonshire, in July, and occasionally near London. Sp. 25. bicolor. Capite, thorace et alis anticis ochraceo-ferrugineis, abdomine alisque posticis nigricantibus, antennis nigris albo annulatis, pedibus fulvis. (Long. corp. 2}—32 lin. ; Long. Ant. 73 lin.; Exp. Alar. 6—8 lin.) Lep. rufus. Steph. Catal. 320. No. 3653.—Lep. bicolor. Phil. Mag. (Curtis) v. iv. p. 214. Head, thorax, and anterior wings light rusty-ochre; posterior wings and abdomen blackish; legs fulvous; antenne very long and slender, black, faintly annulated with white. Rather. more abundant than the last: found near London, and in the New Forest, and in Devonshire, in July. Sp. 26. elongatus. Pallide rufo-ochraceus, ulis anticis angustis, ockraceis atomis paucis atris, posticis hyalinis fusco, iridescentibus, pedibus antennasque pallide Manpisutata, Vor. VI., Dec. 31st, 1836. 2c 202 MANDIBULATA.—TRICHOPTERA. griseis, his albido annulatis. (Long. corp.2 lin.; Long. Ant. 83 lin. ; Exp. Alar. 7 lin.) Lep. elongatus. Steph. Catal. 320. No. 3658. Pale ochreous-red: eyes black; anterior wings very narrow, reddish-ochre, with some minute black dots on the nervures, especially towards the apex ; cilia rather pale; abdomen pale; posterior wings hyaline, and slightly iridescent, with a fuscous tinge; legs pale; antenne pale griseous, annu- lated with whitish. Taken in June, near London. Sp- 27. tineiformis. Fusco-cinereus, alis anticis angustissimis nervis fusco irroratis, pedibus ochraceo-albis, antennis albis nigro annulatis. (Long. corp- 2—25 lin.; Long. Ant. 43 lin.; Exp. Alar. 6—6 lin.) Lep. gracilis. Steph. Nomen. 2d edit. col. 120.—Lep. tineiformis. Phil.’ Mag. (Curtis) v. iv. p. 214. Ashy-brown: eyes black ; forehead very pilose ; anterior wings long and very narrow, the nervures faintly, but minutely, dotted with fuscous; posterior wings also narrow, immaculate, with longish cilia ; abdomen pale ; legs ochreous-white ; antenne moderate, white, annulated with black. Found, in June, at Ripley; also in the west of England. Sp. 28. attenuatus. Capite thoraceque fuscis, alis angustissimis, subhyalinis pallidis immaculatis, abdomine pedibusque ochraceo-pallidis, antennis pallidis, Jfusco annulatis. (Tong. corp. 13—2 lin.; Long. Ant. 4$ lin.; Exp. Alar. 5—6 lin.) Lep. attenuatus. Steph. Catal. 320. No. 3654. Head and thorax fuscous: eyes black ; wings very narrow, hyaline, pale, immaculate, the posterior pair faintly suffused with fuscous, with their cilia very long ; abdomen and legs pale ochreous ; antenne pale, annulated with fuscous. Taken, at the end of June, at Ripley. Genus XXVIII.—MOLANNA, Curtis. Antenne stout, not longer than the wings, the basal joint longish and robust : palpi slender, slightly hairy ; maxillary with the two basal joints short, the 8rd and 4th longish and stout, the 5th slender, filiform, a little longer than the 4th: head small: eyes slightly prominent: thorax stoutish: wings long and narrow, obtusely rounded at the apex, anterior with the 4th nervure trifid, the 5th bifid, posterior with the 1st and 3rd nervures bifid: abdomen shortish, slender, obtuse at the apex in the females: /egs long, slightly pubescent, and setose beneath, all the #ibie armed with a pair of longish LEPTOCERIDA. —FHRYGANIDE. 203 “spurs at the apex, and the intermediate and posterior each with a second pair considerably below the middle. This genus, in my opinion, scarcely belongs to the present family, yet I know not where better to place it: from the other genera it differs in having the antenne not longer than the wings, the latter very obtusely rounded at the apex, and differing in the positions of the transverse nervures from the true Leptoceridz and the Phryga- nide; the legs, moreover, are rather long, and the two hinder pair of tibize are each furnished with two pair of longish spurs, one pe at the apex, and the other pair much below the middle. Sp. 1. nigripalpis. Piare xxxiii. f. 3.—Capite, palpis abdomineque fuscis, thorace fulvo, alis anticis ochraceo-sericeis, posticis pallide fuscescentibus, pedibus fulvis. (Long. corp. 3 lin.; Exp. Alar. 12 lin.) Amblypteryx nigripalpis. Steph. Catal. 318. No. 3619. Head and palpi fuscous; thorax bright tawny ; abdomen fuscous, its apex rather ochreous; anterior wings thickly clothed with an ochreous silky pubescence, the nervures somewhat fuscous ; posterior wings pale fuscous, with darker nervures; legs pale tawny; antenne tawny, spotted with fuscous. Found, but apparently very rarely, in the vicinity of London, at Hertford, in June; also taken in the New Forest. Sp. 2. augustata. Capite thorace abdomineque fuscis, palpis pedibusque rufo- ochraceis, alis anticts subfulvis, nervis fuscis, posticis fuscescentibus. (Long. corp. 3 lin.; Exp. Alar. 12 lin.) Amb. rufipalpis. Steph. Catal. 318. No. 3620.—Mo. angustata. Phil. Mag. (Curtis) v. iv. p. 214. Head, thorax, and abdomen, fuscous; palpi and legs ochreous-red; anterior wings dull tawny, clothed with a silken pile, with the nervures fuscous ; posterior pale fuscous ; antenne tawny, with fuscous spots above. The head, thorax, and abdomen, are sometimes pale tawny-ochreous ; all the wings dull fuscous-ochre, with darker nervures.—Probably a distinct species. Likewise taken near London, in July, and in Devonshire, in June. Famity VIIT.—PHRYGANID - : < 68 4. Agrion rubellum “ . - : x 71 XXX. 1. Gomphus flavipes (and anal appendage) : . 88 2. Chrysopa fulviceps —. . : . . 101 3. Hemerobius concinnus “ : < . 106 4. Hemerobius fuscatus A . : “ ll4 XXXI. 1. Raphidia Ophiopsis . - . : : 130 2. Nemoura variegata =. : : s : l44 3. Leuctra geniculata =. < . - . 145 4. Tsogenus nubecula, var. : : > . 137 XXXII. 1. Glossosoma fimbriata (with anal appendage and palpi) 161 2. Mormonia nigripunctata and palpi. > ~ 189 3. Aphelocheira flavomaculata, ver. . ~ . 179 4. Narycia elegans . . . . . 154 XXXIII. 1. Drepanepteryx Phalenoides . : : ‘ 100 2. Sericostoma Spencii and palpi . . < 184 3. Molanna angustata : < : = 208 4. Chimarra marginata 9 < < x : 19) XXXIV. 1. Qdontocerus albicornis : : : : 192 2. Neuronia fusca : : : : ¥ 254 3. Anabelia annulata A " P : a 231 4. Potomaria analis : : : 4 . i83 ERRATA. Pacs Lanes 3 8 for melwire read ecylre. 3 2 — as the _ at the. z 9 —_ Hugenback —_ Fiagendach. 20 8 Zettersted a Zetterstedt (and elsewhere). Nyy 18 — SBCANTHUS _ @cantavs. O 10 =: family _ group. — _ _ genera — families. 5S S~ — ANISOPTERA _— ANISOPTERINA, 5S 26 — nigricanus — nigricans, — & is _ nervwris _ nervis (and In other places). & 12 _ Stigmata subochraces stignate subechracee. _ 2 _ niger — nigris. oF u — artions _ portion. _ 13 — ‘our — few. 108 4 from bottem joint; —_ joint rosy: us 4 Jer CONTOPTERYX, Leuek. CONTOPTERYX, Cartis. 151 2 — Layer Murney Tread Layer Marney. 1S 6 — hairy = horny. Wl & — azure — “Orange. is A) —_ PMMA CUTALUS — Rameacuiatis, 199 26 _ iridescent _ indistinct. INDEX. Acentria, Page /Esit. Page Ama. Page Ba. Page nivea . 150 maculatissima . 83 — subpunctatus 177 ~— Jongicauda 63 ACENTROPIDA 148 mixta ° - 84 Amblypteryz, mellea Oo AcrntTRoPUS . 150 rufescens - 82 migripalpis 203 nigra. en tay Garnonsit 150 teretiuscula . 85 rufipalpis 203 obscura . - 65 niveus . 150 vernalis . 85 ANABOLIA 204-229 phaeopa OD ACHETA 37-39 AGAPETUS 155 annulata 231 semicolorata . 64 campestris 39 azureus 157 = dubia 232 — striata . 65 domesticus 40 comatus 157 flavipennis 231 subfusca . - 64 sylvestris 40 funereus 156 lutescens . 231 verna - 66 ACHETIDA . 10 fuscipes 156 lurida . 230 venosa - 63 Acrida 36 laniger . 156 nervosa . 230 Barbitestes, aplera . - 12 ochripes 156 _ nigricornis - 232 autumnalis? . IL Kirbii . 13 setiferus - 157 picicornis . 232 Berza 155-158 Binglen 17 AcrayitEsa 151-153 plana 231 albipes . . 158 brachyplera 13. multipunctata . 153 _ testacea 231 Marshamella 158 dorsalis 14 sexmaculata 153 Anax 81 pygmea 158 Susea 14 Acrion 71 formosa 81 BLABEeRus 42.44, grisea 18 annulare 74 Imperator 81 giganteus 42 varia 15 Chloridion 75 ANIsOPTERA . 12 Brarra 43-44 VETTUCIWOTA 17. ~—s cingulatum 73 ANISOPTERINA 53 Americana oT A virescens 11 corea 76 Awvicyra 155-159 = lucida 46 wiridissima 16 elegans 72 ~ «ciliaris. 160 Maderz 43 AcRYDIUM 19-32 ezonatum 72 ~~ gracilipes 159 orientalis 44 bimaculatum 34 — fulvipes 75 latipes . 160 Brarripsé 10-42 binotatum 35 furcatum 73 phzopa 159 BorEiDsz - 930 bipunctatum . 34 hastulatum 73 subochracea 160 Borreus . - 50 Panzer 34 — Lincolniense 75 APMELOCHEIRA, hyemalis Heid) | brevipenne 36 minium . - 45 167-179 BracuycENntTRuS 18] cristatum 35 platypoda 76 flavomaculata 179 concolor - 182 dorsale 34 Puella . - 73 subaurata 180 costalis . - 182 ephippium 35 rubellum 71 Aphelomera, subnubilus . 182 hieroglyphicum 35 rufeseens 74 Italica . Al Brachycercus, humerale 34 rufipes . - 71 Arroros 115-128 chironomiformis 62 laterale 35 = sanguineum 75 fatidicus 129 Harrisellus . 61 marginatum 34 xanthopterum 72 ~pulsatorius =. 128 minimus . oe Ol nigricans . 36 xzonatum 72 Baiiris 55-62 C#nIs_. 55-60 obscurum 35 AGRIONIDA - 70 autumnalis . 67 brevicauda 5e tH ochracewm 35 AGRYPNIA 204-228 basalis 64 chironomiformis 62 pallescens 34 Pagetana 229 pbioculata 65 dimidiata a Gl scriptum 35 Aleyrodes carnea 65 Harrisella er OL subulatum 34 = dubia 116 caudata 63 interrupta A elty3 variegatum 36 gigantea 116 costalis 64 minima 60 vittatum .« 35 Amathus 176 — culiciformis 66 pennata . ana Ol zonatum 35 ~~ cambricus 178 cingulata 67 CALEPTERYX 71-78 JESHNA 61-82 concinnus 178 ~~ dispar 63 anceps . A acs) affinis . 5 5 fuliginosus 177 elegans 64 Ludoviciana 79 chrysophthalmus 82 maculatus 178 flavescens 64 Virgo 79 Dalit ‘A 82 picicornis 177 ~—sfuscata 66 xanthostoma 80 grandis 83 pyrrhoceras W777 ‘horaria 66 CERACLEA . 192-193 juncea 84 — subnebulosus 179 lateralis 65 nervosa . 194 238 INDEX. Page Brc. Page Go. Page HE. Page CHELIDURA 4-6 griseus 18 fuscata 187 -Pini ~ LEE albipennis é 7 +verrucivorus 17 Ahirta - 189 punctatus = UNITE CHETOPTERYX, DERMAPTERA 1-3 immaculata 189 Stigma SRI? é 204-232 DREPANEPTERYX, irrorata 188 subfasciatus . I11 brevipennis 233 99-100 nigromaculata 189 subnebulosus . 107 villosa. 233 Phalenoides . 100 pilosa . . 187 variegatus - 113 CHIMARRA 190 Drusus : - 251 vulgata . - 188 HyprRopsycHE, marginata - 91 annulatus - 231 GompHocerus 19-29 147-167-170 CHLOROPERLA . 137 dudius . . 232 apricarius 32 — angustata - 174 flava : - 139 lutescens. - 231 biguttatus 30 angustipennis . 173 fuscipennis 138 _picicornis - 232 bigutiulus 30 = atomaria «7 BRE lateralis - 138 planus 231 calidoniensis 32 flavomaculata . 180 lutea : - 138 Dryas elegans 31 fulvipes « 874 media - 138 nigripunctatus 168 ericetarius 31 guttata. ~ Je pallida - 139 Ecrosrus . 44.45 rufus 30 hibernica Ban OE tufescens - 139 germanicus 46 sibiricus 32 leta - SLE: venosa - 139 lapponicus 46-235 Sowerbii 30 lanceolata - 173 viridis 138-139 lividus. 48 Gompuus 81-87 _ pellucidula 172 CHRYSOPA 99-101 nigripes . 48 flavipes . 88 Senex 168 abbreviata - 103 __ pallens - 46 forcipatus 87 tenuicornis . 171 afinis . - 104 _ pallidus . - 48 pulchellus 88 urbanus . - 175 alba - 104; Panzert «. . 47 vulgatissimus . 87 HyDRopsycHIDs, angusta - 104 _ perspicillaris 47 GRYLLID 10 148-167 angustipennis . 104 EPHEMERA 55 GryttotTaLpa. 37 Hyproptita 147-151 capitata . - 102 apicalis . . 99 didactyla 37. brunnicornis . 152 carnea 103 cognata . . OG vulgaris . - 38 costalis . - 183 fulviceps . ~nlOL csdiluta - oS Haresus . 204-209 marginata - 152 immaculata . 103 dispar . - o8 angustatus 209 sparsa. - 152 maculata - 102 dubia . - 59 cingulatus - 209 tineoides . - 152 Periag - 105 fusca : - 58 confinis ~ 209:> . Viectisnaee =) 452 punetifrons. . 104 helvipes . . oF flavus . . 210 HypRoprTixipa, reticulata - 102 lutea - 57 _ hieroglyphicus 210 148-151 subfalcata - 105 marginata 57 lateralis 210 IsocEenus . 134-136 ventralis - 103 mmor- . 60 _ latipennis 209 = nubecula Saal oy! viridis - 103 nigricans 58 obseurus . 210 Lanta é 4.7 CLoEoN 55-67 rosea . 59 radiatus « 210 minor. e 8 albipenne - 69 rufescens - 959 © stellatus 210 LasipuRA - 48 cognatum 69 stigma . eran a Vinex -. 209 gigantea . - 8 consobrinum 69 submarginata 58 HEMEROBIDE 97-98 Leptetrum $2 dimidiatum 69 talcosa 57 HEmeERosBIus 99-105 LEPTOCERIDA, dipterum 68 vespertina 60 affinis . 109 148-191 dorsale - 69 vulgata . 50 angulatus 106 Lerrocrerus 192-194 hyalinatum . 68 Don 56 apicalis . = RELO .afinisiaaee - 198 ochraceum 68 EPHEMERID£ 54 concinnus - 106° annulatus « ESF obscurum 69 EPHIPPIGERA Il cenfinis . 115. annulicornis , 199 Virgo. - 70 virescens 11 crispus - 112 - assimilis - 198 unicolore 69 ForFicuLa 4 elegans - 3 ater - = 18 ConropTERYX . 115 albipennis 7 fasciatus - 108 — Step. .) 208 - Aleyrodiformis 116 auricularia 4 fimbriatus . 113 aterrimus - 200 Psociformis - ll7Z borealis 5.235 fuscus -. - 107. attennuatus . 202 Tineiformis 116 ~—scentralis . 7 fuscatus . . lid aureus = 197 CoRDULEGASTERS1-86 _forcipata . 6 hirttus. - 106 __ bicolor - 201 annulatus SRS SNEHES ce > 5 Humuli . . 108 _ bilineatus - 200 Corpurra . 81-88 Hagen. 7 irroratus . Ill bimaculatus . 197 zenea : . 89 ForFicuLip= 1-3 lutescens . 109 caliginosus . 200 compressa 90 GLossosoma 155-160 marginatus . 109 cinereus = Ly Curtisti 90-236 HBoltoni . 161 Marshami 114 _— dissimilis aa AEs metallica 89 _ fimbriata 161 nebulosus 107 — elongatus 201 CyrNnus 167-174 Glyphotelius 211 ~— nemaralis « -LIOy wilosus: = 249 cognatus 175 angulatus 211 _—inervosus - 108 gracilis . 202 pulchellus - 175 cognatus 212 _ nitidulus - 114 grossus -- « 399 unicolor 176 diaphanus - 212 obscurus . 108 interruptus . 198 unipunctatus . 175 ornatus 212 obsoletus . - 110 _ longicornis - 201 urbanus . = L7olmnpietus |. - 211 paganus . 110 niger = - 196 DEcrTicus 11-16 GoERa - 181-187 pallidus . 112 nigricans , 195 Bingleti 17 flavipes. - 187 _ perelegans 109 obtusus . . 195 LEP. Page Lim. ochraceus - 195 elongatus perfuscus - 196 emarginatus . pilosus . - J99 fenestralis 4-fasciatus - 200 Steph. tufogriseus . 201 flavus, 5 rufus . - 201 flavescens seminiger - 199 flavicornis 5 subannulatus - 197 fuliginosus ° tarsalis . . 197 fuscatus ; testaceus - 195 fuscus tineiformis - 202 geminus . 9 LEsTEs 5 71-76 glaucopterus . autumnalis . 78 griseus A forcipula - 78 hieroglyphicus Nympha - 77 incisus ; sponsa Sad tnternuptes) i. Viridis LI MAMILLOLatusin. LEUCTRA 134-144 latipennis abdominalis . 145 Lineola fusciventris - 145 Steph. . geniculata - 145 Ilunatus LIBELLULA 81-90 Steph. . angustipennis . 95 luniger : basalis - 96 luridus 0 bimaculata? . 93 marginalis . cancellata - 93 marmoratus . cerulescens . 93° mnebulosus : conspurcata . 91 Steph. depressa . 91 nigyrivittatus . Donovani - 93 notatus . ° flaveola - 96 nubilus . 0 paliidistigma . 94 obscurus B prenubila - 92 ochraceus 4-maculata 92 obliquus trufostigma - 95 ornatus Scotica 94 pallescens 9 vulgata 95 __ pellucidulus LIBELLULIDZ 70-80 . pictus . LIBELLULINA 70 preeustus LIMNEPHILUs 204-211 punctatus affinis . 217 punctatissimus affinis, Steph. . 215 punctulatus albovittatus 215 4-maculatus . angulatus 211 rhombicus : apicalis . 216 — signatus 3 Steph. . 227 sparsus : assimilis . 221 — stellatus : Auricula . 220 = stigma 2 basalis 211. Steph. . bimaculatus 216 — strigosus . 0 binotatus . 215 Striola . bipartitus » 225 subnebulosus . bipunctatus 218 substrigosus_. caliginosus 221 tenebricus . centralis 227 terminalis? . czenosus 221 ~—‘tessellatus : cognatus . 212 = testaceus 5 confluens 222 ~—ustulatus : consobrinus 224 ~=variabilis : costalis 217 versicolor A diaphanus ZN WANG 5 discoidalis ~ 214 ~ villosus ‘5 dorsalis 213 = =Vinculum . elegans. 215 __vittatus Pict. 225 INDEX. 239 Page Page Mys. Page 227 Locusta . 19 phea F LOG 211 aprica . . 24 Narycra . 15)-154 218 autumnalis 11 elegans 154 220 bicolor 2 . 25 NEUROPTERA . 49 226 = biguttata 26 Nemovra , 134-140 223 Christii . 235 — affinis » 14] 213 cerulescens ' 21 annulata. LA? 227 ~=consobrina ~ 27 Cambrica 43 222 crucigera - 26 cruciata . . 14) 221 = dorsata . 22 ~ fuliginosa 141 220 ~— elegans - 22 fumosa - 143 215 flavipes . 21 —_luteicornis - 142 217 ~~ grossa . 21 nebulosa . 140 210 hemorrhoidalis 27 _~—sénitida 5 LA cy 228 lineata 26 pallicornis 143 225 migratoria 20 paliida 141 223 miniata . . 25 pallipes 142 209 ~—modliis ae emmpUsill anges - 143 213 montana . 23 — sulcicollis 143 225 obscura . 27 variegata . 144 216 ochropa . 22 NEuROoNIA 204-234 219 paraliela . eo egtusca . 234 219 pedestris . - 29 Notiposia 181-185 231 rhomboidea . 28 atrata . - 186 218 rosea 5 - 25 pallipes 186 214 = rubicunda . 24 OpontTocERus. 192 215 rubroviridata . 22 albicornis 5 Ke 214 = rufipes ZOMG TISCUS tare 5. Uy, 225 — stridula . 20 maculipennis 192 224 tricarinata . 23 C@cantHus . 37-41 223 = -variegata - 28 Italicus . - Al 220 varipes . . 28 Orthetrum . 5 Oe 223 -venosa . 28 ORTHOPTERA 9 219 viridula . 24 OsmyLus . 5 eb 212 = -vittata . 25 maculatus 5 EY) 214 Locustip& .. 10-18 PanorPa 5 Ol 211 Mreconema . 11-14 affinis’ . 25 211 varia - 15. apicalis . 52 226 MEGALOPTERINA 132 borealis . 53 227 Meroe communis 52 221 concolor . 182 germanica 5. 168 217 ~~ costalis 182 PANORPIDA 50-51 222 nubila . 182 PANORPINA 49 214 Micropreryx 11-12 PERLA - 184-135 219 = aptera 12 bicaudata - 136 223 brachyptera 13. cephalotes - 136 210 ~Roeseli - (13 flavipes - 135 216 Motanna 192-202 grandis . - 135 216 angustata - 202 marginata - 135 213 nigripalpis - 232 nervosa - 136 213 Mormonta 181-188 PeRLip#& 132-134 224 gracilicornis 189 PHasconuRa 11-15 224 hirta 9 . 189 viridissima 16 222 immaculata . 189 Platetrum . 91 226 = =maculicornis? . 189 PLECTROCNEMIA, 218 minor elad 167-168 224 nigromaculata. 189 senex . - 168 228 MyRMELEONIDZ $7 PHILOPOTAMUS, 226 MyRMELEON . 98 167-169 218 formicarium 98 affinis . - 17s 209 Mystacide . 147° antennatus . 172 228 aurea - 197 bimaculatus . 173 222 = atra - 196 conspersus 2 168 225 azurea - 157 dorsalis 165-172 nigra 196 instabilis 171 240 Put. longipennis maculatus marginepunctatus 173 Page Pot. 166 picicornis 171 pyrrhoceras montanus - 170 PotomMaRtIa nebulosus 166 analis obliquus 171 assimilis obsoletus . 165 hyalina . obscurus 174 Prosoponia ochroleucus » 173 Leachii opacus 166 Spencii pellucidulus 172 Psocip& . reticulatus 170 Psocus *. Scopulorum 169 abdominalis variegatus 169 atomarius PHRYGANEA 147- 204 bifasciatus _albicornis - 193 pipunctatus annulata - 197 costalis atomaria - 205 contaminatus Beckwithii . 205 dubius . elegans, Pict. . 225 fasciatus . Jiava C - 226 flavescens Jlavipennis - 231 flavicans Jlexuosa . 206 flaviceps Susca, Pict. . 230 flavidum grandis 204 hyalinus Lineola 213 immaculatus lunaris . 215 immunis . minor - 206 lineatus . nigricornis +. 232 longicornis pellucidula - 211 maculatus personata - 185 maculipennis Phalenoides . 206 megastigmus pilosa2 . - 209 nebulosus striata . 205 nervosus Pict. 210 nigricans testacea - 231 nigricornis tuberculosa . 233 obsoletus . varia 9 205 ochropterus PHRYGANIDE 148-203 phzopterus PopisMa ° -29 _ picicornis pedestris : “519 pilicornis POLYCENTROPUS, 4-maculatus 167-176 4-punctatus concinnus - 178 rufescens fuliginosus sid qey SUMIHS Bere irroratus . 178 — sexpunctatus multiguttatus 178 _ striatulus END OF VOL. subpunctatus . 120 Ru YACOPHILID2, 119 126 SERICOSTOMA, 147-181-184 127 126 atratum . NOSIS Ntarrelie 122 - Spencii . 118 117-SIALIDz 124 SIALis 125 — flavilatera 125 Iutaria 120 S1Lo & 123 ___ pallipes 124 Sympetrum VI. 148-154 INDEX. Page Pso. Page Page 177 — subfasciatus 119 TERMITINA $7 - 177 — subnebulosus 121 Tetrix 176 subocellatus . 124 Panzeri . 34 181-182 subpunctatus 126 Thya - 185 variegatus - 118 Maurus . 159 - 183 venosus - 121 pullata 158 - 183 vittatus - 122 TInNopES 155-162 PsycHomia . 147 albipunctatus 164 « 184 PsycuHomipD# 148-190 annulicornis 163 184 RapHiIDIa - 129 ciliaris 160 97- Mi Sitmeatinisieits - 131 fimbriatus 161 115-117. confinis . - 131 flaviceps . s 1 MG2 - 127 Londinensis . 130 lJlurdus . N63 - 118 maculicollis 131 lutescens 160 120 =megacephala 130. obscurus 164 123 _ ophiopsis - 130 _ pallescens 162 126 RaPpHIDIIDZ 97-129 pallipes . 163 - 120 RuyacoPHiLa, pheopus 159 127 147-155-165 _ pusillus 164 118 comata . - 157 simplex 161 Sua wn Laat we - 156 subauratus - 180 - 123 lanigera . - 156 — subochraceus 160 - 124 Melas? -. 158 wnipunctatus . 175 - 123 ~~ nigrocincta 159 xanthoceras 163 - 128 nebulosa 166 TricuorpTERA . 146 - 125 opaca . 166 Tricuostoma . 147 - 121 setifera . 157 XipHipi0on 11-13 - 119 stigma - 166 dorsale 14 . 121 tomentosa - 189 fuscum . 5 le - 119 vernalis . - 161 Zanele ~« 126 vulgaris 165 Hanson . - 150 ENGLISH NAMES. - 186 Case or Caddis-flies 146 184 Cock-roach ' 184-236 Cricket, 127 SERICOSTOMID, domestic . 148-180 mole 5 « - 132 Golden-eye . 133 Grasshopper - 133 Locust a 1S} May-fly i 181-186 Snake-fly . 186 Water-moth 94 © BALDWIN; PRINTER, NEW BRIDGE*STREET, LONDON. 42-45 SMITHSONIAN INSTITUTION LIBRARIES viii