134 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



brown, the costal portion fulvous buff, with a longitudinal 

 series of short dark transverse strigse between the veinlets. 

 The abdomen is the thickest part of the body, subconvex ; 

 the terminal segments short, the last emarginate at the tip, 

 exposing a short semicircular flattened lobe in the middle, 

 and the two ratber elongated black anal styles. The oper- 

 culum is moderate-sized, extending to about half the length 

 of the ninth dorsal segment ; its extremity is notched, and 

 it is followed by two broad flattened plates. The legs are 

 moderately long, slender, and simple. 



Plate XVI. Fig. 6. The female, of the natural size. 6a. The 

 extremity of the abdomen seen from beneath. 6 6. The 

 same seen laterally. 



18. (351.) Necroscia Pirithous, Westw. 



Elongata, gracilis, cylindrica, abdomine crassiori, fulvo- 

 lutescens ; capite oblongo, 3-ocellato ; antennis fere longi- 

 tudine capitis ; mesothoracis dorso granulato ; tegminibus 

 ovalibus, apice oblique truncatis ; alarum area costali con- 

 colori, vena mediana simplici ; pedibus prsesertim anticis 

 longis ; abdominis segmentis tribus apicalibus brevibus, ul- 

 timo apice emarginato, segmento G'° ventrali ad apicem 

 bicornuto, operculo apice bifido (fcem.). 



Long. corp. fcem. unc. 2f ; cap. lin. 2 ; anten. unc. 2£ ; 



proth. lin. 2 ; mesoth. lin. 6 ; metath. lin. 6 ; abdom. lin. 1 7 



+lin. 3=lin. 20 ; tegm. lin. 3 ; alar, expans. unc. 3, lin. 7. 



Hab. In insula Java (Dr. Ilorsfield). In Mus. Soc. 

 Merc. Ind. Orient., Lond. 



The only female specimen which I have seen of this spe- 

 cies very closely resembles Necroscia Salmanazar (PI. XVI. 

 fig. 6) in its general form and proportions, but differs in its 

 uniform fulvo-luteous colour, in the possession of three 

 distinct, although small, ocelli, in the more strongly granu- 

 lose mesonotum, in the uniform colour of the costal area of 

 the fore wings, and in the two small horns with which the 

 sixth ventral segment is armed at its extremity. The head 

 is rather longer than wide, with a slight circular impression 

 between the eyes, within which the ocelli are placed ; the 

 hind part of the head is slightly raised, and divided by a 

 longitudinal impressed line down the middle. The antenna; 

 are very long and slender, with very numerous joints 

 scarcely discernible. The mesonotum is covered above 

 with minute granules, without any raised longitudinal carina. 

 The tegmina are small, oval, obliquely truncate at the ex- 

 tremity. The wings are large, somewhat hyaline, and co- 

 lourless ; the costal area pale fulvo-luteous; the median 

 vein concolorous with the body, simple, and rather darker 

 than the remainder. The abdomen is wider than the thorax, 

 nearly parallel ; the last three dorsal segments short ; the 



terminal one emarginate, exposing a minute rounded lobe 

 at its apex ; the anal styles are of moderate size, concolo- 

 rous, porrected, and resembling a small open forceps ; the 

 sixth ventral segment has a small deflexed spine on each 

 side at its extremity ; the operculum is nearly straight and 

 compressed, its apex acutely bifid. 



I have not thought it necessary to give a figure of this 

 insect, as it bears so great a general resemblance in its form 

 and proportions to Necroscia Salmanazar. 



19. (352.) Necroscia Aruana, Westw. 

 Plate XXXIX. fig. 4, female. 



Elongata, subparallela, luteo-fusca opaca ; capite tuber- 

 culis tribus minutis ocelliformibus ; antennis longis, ultra 

 medium fusco-annulatis ; pro- et mesonotis granulatis ; 

 tegminibus oblongis, apice oblique truncatis, carina me- 

 diana nigra, prope medium angulato-elevata, angulo intus 

 lutescente ; alis magnis, pallide roseis, costa obscure lutes- 

 cente nigrescenti-nebulosis, vena mediana simplici ; pedibus 

 brevibus, simplicibus, luteo-fuscis, obscurius submaculatis ; 

 operculo ultra apicem abdominis protenso (fcem.). 



Long. corp. unc. 3^ ; cap. lin. 2 ; anten. unc. 3 ; proth. 

 lin. 2; mesoth. lin. 6i; metath. lin. 61; abdom. lin. 22 

 -(- lin. 4 = lin. 26 ; tegm. lin. 3^ ; alar, expans. unc. 4J. 



Hob. Insula Aru, prope Nov. Guin. (D. Wallace). In 

 Mus. W. W. Saunders. 



This species, of which I have only seen a female, is long 

 and slender, of a dull luteous-brown colour. The head is 

 oblong, with three small tubercles representing the ocelli in 

 front ; the hind part with a central impressed line, having a 

 raised tubercle on each side. The antenna? are long and 

 very slender, pale brown, with several blackish rings to- 

 wards the extremity. The pro- and mesothorax are granu- 

 lated, the latter but slightly widened behind. The tegmina 

 are oblong, and truncated obliquely at their extremities ; 

 they are dirty buff-brown, with the central carina blackish 

 and elevated in the middle into a small conical protuberance, 

 within which is a minute oval patch coloured pale buff. 

 The wings are large and pale rosy, with the tips somewhat 

 dusky ; the longitudinal veins are darker rosy, especially 

 towards the base ; the costal area is dirty luteous with 

 blackish clouds, and with the central vein simple and darker 

 coloured. The legs are slender and short, fulvous brown, 

 slightly mottled with darker brown, especially on the middle 

 tibia?. The abdomen is long and slender ; the three ter- 

 minal joints short ; the last truncate at the tip, with the two 

 anal styles straight and porrected, as long as the joint to 

 which they are attached. The operculum extends beyond 



