128 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



Genus 33. NECROSCIA. 



Necroscia, Serville, H. N. Orth. p. 250. 



Be Haan, Orth. Orient, p. 117. 

 Platycrana, pars, G. R. Gray, Syn. Phasm. p. 36. 

 Phasma, Sect. II. pars, Burmeister, Handb. d. Ent. p. 585. 



Body long and slender, generally simple, or occasionally 

 with the head, prothorax, mesothorax, or tegmina spined, 

 and with short quadrate tegmina and fully developed wings 

 in both sexes. Head generally unarmed, with or without 

 ocelli. Antenna; generally very long, and often annulated. 

 Thorax elongated, cylindrical. Mesothorax generally about 

 thrice the length of the prothorax or shorter (in the species 

 destitute of ocelli). Tegmina small, generally subqua- 

 drate, and from one-fifth to one-eighth of the length of the 

 wings. Wings large ; costal area with the main vein sim- 

 ple in both sexes, or bifurcate in the female only of some 

 of the species. Legs long and slender, neither spined nor 

 dilated ; basal joint of the tarsi very elongate. Abdomen 

 elongate, cylindric, subclavate in the males ; anal styles 

 very short. 



Inhabit India and the Islands of the Eastern Ocean. 



Restricted as this group is, according to the views of 

 Serville and De Haan, to the Oriental species allied to 

 Phasma, the species are very numerous. In the following 

 arrangement I have not attempted to tabulate the species, 

 although I have followed the distribution proposed by De 

 Haan, commencing with the species with spines on the 

 head, after which are placed some species with spines on the 

 thorax, followed by the unarmed species having an elon- 

 gated mesothorax. De Haan has distributed the latter 

 according to the colours of the wings and legs, which has 

 led to artificial results. The genus is terminated by those 

 species which have the mesothorax comparatively short. 



1. (334.) Necroscia spiniceps. 



Capite luteo, nigro-punctato, spinis duabus nigris, basi 

 distantibus, apice divergentibus ; ocellis nullis ; antennis 

 unicoloribus ; alis infumatis, area antica olivacea ; elytris 

 brevibus, truncatis, fuscis, apice albo ; mesothorace granu- 

 lato ; pedibus flavidis. 



Long. corp. maris, unc. 2^ ; cap. lin. If; anten. lin. 16 ; 

 proth. lin. \\; mesoth. lin. 4^ ; metath. lin. 4 ; abdom. 

 lin. 14 + lin. 3 = lin. 17 ; tegm. lin. If; alar, expans. 

 unc. 2f . 



Long. corp. fcem. unc. 3 ; cap. lin. 2f ; anten. lin. 19 ; 

 proth. lin. 2 ; mesoth. lin. 5 ; metath. lin. 6 ; abdom. lin. 

 16 + lin. 5 = lin. 21 ; tegm. lin. 3 ; alar, expans. unc. 4£. 



Phasma (Necroscia) spiniceps, Be Haan, Orthopt. Orient. 



p. 1 19. pi. 15. f. 4 (nee 2), mas. 



Hab. In Borneo; Sarawak (Wallace). In Mus. Saun- 

 ders. 



De Haan was acquainted only with the male of this spe- 

 cies ; but Mr. Wallace has sent home both sexes, although 

 very rare. The female is much more robust than the male ; 

 it is destitute, like the male, of ocelli, and the wings are 

 more tessellated; the truncation of the tegmina, together 

 with their white apical margin, is very peculiar. 



2. (335.) Necroscia acanthocephala. 



Plate XXVII. fig. 4, pupa foeminse. 



Capite viridi, conico, bispinoso, spinis nigris, basi eon- 



junctis, apice divergentibus ; ocellis nullis ; antennis nigris, 



annulo apicali albo ; alis infumatis, area antica uti et elytris 



viridibus ; pedibus brunneo-flavis (mas). 



Long. corp. 2" 1'"; proth. 1'"; mesoth. 4'"; alar. 

 1" 5'" ; lat. alar. 8'". 



Phasma (Necroscia) acanthocephala, Be IIaan,Orth. Orient. 

 p. 118. 

 Hab. Pontianak (Borneo). 



The pupa represented in Plate XXVII. fig. 4. appears 

 to me to be that of a female of this species. The general 

 colour is luteous buff ; the spines of the head black ; the 

 antennae black, except at the base, which is luteous, and 

 apex, which is pale and greenish ; the rudimental tegmina 

 and wings are green. It was sent from Sarawak by Mr. 

 Wallace, and is in the collection of W. W. Saunders, Esq. 



Plate XXVII. Fig. 4. The pupa, of the natural size. 4 a. 

 The head and front of the thorax seen sideways. 4 b. The 

 extremity of the abdomen seen sideways. 



3. (336.) Necroscia diacanthos. 

 Plate XIX. fig. 5, male ; fig. 6, female. 



Gracillima, nigricans ; capite magno, 3-ocellato, postice 

 valde elevato, conico, spinis duabus parallelis ; antennis 

 longis, albo annulatis ; pro- et mesothorace albo-granulatis ; 

 tegminibus parvis, fuscis, postice truncatis, margiue tenui 

 postico pallid e viridi ; alis infumatis, area costali in mare pal- 

 lide testacea, in fcemina obscuriori fusco-nebulosa, hujus 

 vena secunda bifurcata (in mare simplici) ; antennis elon- 

 gatis, ante apicem annulo albo notatis ; pedibus longis, 

 gracillimis, in fcemina brevioribus, tarsis albidis. 



Long. corp. maris, lin. 26 ; cap. lin. 1^ ; proth. lin. 1^ ; 

 mesoth. lin. 4 ; metath. lin. 3f- ; abdom. lin. 13^-f lin. 3 

 =lin. 16j; tegm. lin. 1^; alar, expans. lin. 32. 



Long. corp. foem. lin. 36; cap. lin. 2; proth. lin. 1 ; 



