68 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



being distinguished from small frontal tubercles, whilst in 

 other instances they are of large size. Species also which 

 are otherwise closely allied together, are either furnished 

 with, or want these organs. One instance also occurs, in 

 Ph. Cneius, in which some of the male specimens possess, 

 whilst others want, the ocelli. 



The comparative lengths of the parts of the thorax, which 

 has been relied upon as a primary divisional character in 

 the family, in like manner appears to me to be of compa- 

 ratively little generic value : that it is, on the contrary, of 

 high specific importance, will be at once perceived from the 

 uniform employment I have made of it in my specific cha- 

 racters and measurements. 



Genus 13. ANOPHELEPIS, JFestw. 



Body elongate, depressed or subdepressed in the female, 

 more or less spined. Head without ocelli. Mesothorax 

 several times longer than the prothorax. Metathorax not 

 so long as the mesothorax. Tegmina (when present) as 

 well as the wings reduced to minute scales. Legs long, or 

 of moderate length. 



Inhabit the Old and New World and Australia. 



I have here arranged together, provisionally, several 

 species which agree in the minute size of the organs of 

 llight, in what I regard as the final state of their existence. 

 In the species from India and Mexico the tegmina are not 

 at all developed, whilst they exist in a very small and ru- 

 dimental state in the Australian species. In other respects 

 the species have close relations with other groups. The 

 female of A. vittata approaches Pygorhynchus ; A. de- 

 specta, without regard to its rudimental wings, would be 

 arranged in Acanthoderus ; whilst some of the Australian 

 species resemble Bacilli. 



1. (17!).) Anophelepis despecta, IVestw. 



Plate III. fig. 6, male ; fig. 1, immature female? 



Mas. Gracilis, cylindricus ; capitis margine postico tu- 

 berculis elevatis instructo ; mesothorace spinis circiter 12, 

 per paria irregulariter dispositis ; metanoto squamis duabus 

 elytriformibus, lateribus tuberculis minutis iustructis ; ab- 

 domine gracillimo, apice clavato ; pedibus longis, gracilibus ; 

 femoribus apicem versus subtus spinis tribus ant quatuor 

 minutis armatis ; scgmento nono ventrali in medio inflato, 

 apice rotundato, ad apicem segmenti noni dorsalis extenso ; 

 hoc angulis apicalibus deflexis, subtus sty lis duobus instructo. 



Foemina. Aptera, subcylindrica, latitudine fere sequali ; 

 fusco-nigricans, opaca, subscabra ; capite postice quadrato, 

 serieque postica tuberculorum parvorum instructo ; thorace 

 fere abdominis longitudine ; pronoto spinulis minutis ar- 



mato ; mesothorace lateribus spinulosis, dorso 12-spinoso, 

 spinis 2 anticis majoribus et approximatis, 2, 2, 2 distanti- 

 bus, et 4 posticis approximatis, ultimis 2 compositis ; meta- 

 thorace oblongo, lateribus spinulosis, dorso in medio spinis 

 duabus squamisque duabus liberis elytriformibus; segmen- 

 ts abdominalibus tuberculo elevato in medio marginis 

 postici, in segmentis basalibus fere obliterato, segmento 

 ultimo trilobo, oviductu subtus in medio carinato ; pedi- 

 bus mediocribus, intermediis parum brevioribus ; femoribus 

 ad apicem intus spinulosis ; tarsis articulo basali abbre- 

 viate, prsesertim in pedibus 4 posticis. 



Long. corp. maris, unc. 3^ ; anten. unc. 2f ; proth. lin. 

 2±; mesoth. lin. 9j ; metath. lin. 5; abdom. lin. 14 + 

 lin. 4|=lin. 18^ 



Long. corp. foem. unc. 4| ; cap. lin. 4 ; proth. lin. 4 ; 

 mesoth. lin. 12 ; metath. lin. 7 ; abdom. lin. 20 + lin. 6' = 

 lin. 26. 



Phasma (Acanthoderus) despectum, Westwood, Cabinet 

 Orient. Ent. p. 80. pi. 39. f. 5 (fem.). 

 Hub. Northern India ; Sylhet. B.M., &c. 



The general colour is brunneous grey ; the head, wing- 

 scales, and femora dirty buff ; the extremity of the abdo- 

 men paler coloured. The body beneath is destitute of 

 spines or tubercles. 



Plate HI. Fig. 6. The male, of the natural size. 6 a. The 

 terminal segments of the abdomen seen from beneath. 6 b. 

 The same seen sideways. 



Plate III. fig. 1 represents an insect in the British Mu- 

 seum Collection which I had at first regarded as the female 

 of a distinct species, and had proposed to name An. Cres- 

 phontes, the operculum being as fully developed as in the 

 full-sized females of An. despecta. It, however, so closely 

 agrees in all its general characters with the females of An. 

 despecta (differing only in the slighter development of the 

 tubercles, spines, and leaflets), that I think it more prudent 

 to consider it as a small female of that species. The body 

 is pale luteous opake brown, with the wing-scales pale yellow 

 with a black line on each side ; the legs arc slightly varied 

 with small brown points ; the body beneath is concolorous 

 and similarly rugose ; the thoracic and abdominal segments 

 marked with two longitudinal raised lines on each side. 



Plate III. Fig. 1. The insect, of the natural size. 1 a. The 

 terminal segments of the abdomen seen sideways. 



2. (180.) Anophelepis Scythrus, JFestw. 

 Plate II. fig. 3. 

 Elongata, cylindrica, opaca, obscure fusca ; capite pos- 

 tice, prothorace, mesothorace antice et postice et meta- 

 thorace in medio spinosis, hoc etiam in medio tegminibus 



