10-1 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



tennse long, Prothorax armed with two large compound 

 spines. Mesothorax wider than the prothorax, and about 

 twice its length. Tegmina oval, as long as the mesotho- 

 rax. Wings of moderate size, about two-thirds of the length 

 of the abdomen in the female. Abdomen wider than the 

 thorax ; three terminal segments of uniform length with 

 the preceding joints ; ovipositor and anal styles short. 

 Legs of moderate length, slender, without lobes or dilata- 

 tions. 



Inhabits Brazil. 



The female only of the unique species of this Brazilian 

 type of form is known, and is contained in the National 

 Museum of Paris. Burmeister's conjecture that it is the 

 male of Prisopus spinicollis is without foundation, the sim- 

 ple structure of the legs being of itself sufficient to prove 

 the wide separation of the two groups. 



1. (265.) Xerosoma canaliculatum. 



Luteo-brunneum ; capite medio canaliculate, tubercu- 

 lato, tuberculis duobus majoribus posticis ; thorace tuber- 

 culato ; prouoto postice spinis duabus compositis ; tcgmi- 

 nibus virescentibus, carina mediana parum elevata ; alarum 

 area antica virescenti opaca, basi subrosea, postica hyalina, 

 fusco transverse reticulata ; pedibus viridi brunneis, subtus 

 fusco maculatis ; antennis luteo-brunneis (foem.). 



Long. corp. unc. 2^; cap. lin. 2; anten. lin. 16; proth. 

 lin. 2 ; mesoth. lin. 5 ; metath. lin. 5 ; abdom. lin. 1 1 + 

 lin. 5=lin. 16; tegm. lin. 6 ; alar, expans. unc. 2|. 



Xerosoma canaliculatum, Serville, Ann. Sci. Nat. xxii. p. 6 1 . 

 G'. R. Gray, Syn. Phasm. p. 27. 

 Serville, H. N. Orth. p. 275. 

 Hab. In Brasilia. In Mus. Reg. Paris. 



The dimensions given above are taken from an examina- 

 tion and drawing made by me from the typical specimen 

 in the Paris Museum. 



Genus 26. CREOXYLUS. 



Creoxylus, Sei-ville, H. N. Orth. p. 265. 



Phasma, pars, G. R. Gray. 



Xeroderus, Sect. (B), Be Haan, Orth. Orient, p. 116. 



Body elongate, filiform, rugose ; head spined ; tegmina 

 elongate-ovate ; wings large. Head subquadrate, rather 

 larger than the prothorax. Ocelli wanting. Antenna? long, 

 setaceous. Eyes large. Mesothorax about twice the length 

 of the prothorax. Tegmina elongate ovate, as long as the 

 pro- and mesothorax united, with the median carina strongly 

 elevated in the middle. Wings large, as long as the abdo- 



men. Abdomen cylindric, elongated; terminal segments 

 dilated in the males. Legs of moderate length ; femora 

 without membranous dilatations, the four posterior fur- 

 nished with leaflets, largest in the middle legs ; tibise not 

 toothed, but with two small dilatations, one near the base, 

 the other towards the extremity. 



I have followed Dc Haan in adding several species to 

 this genus, which, however, seem to differ in various im- 

 portant particulars from the original type (of which I have 

 not been able to find any specimen in the Paris Collections, 

 but which seems very closely allied to Phasma spinosum of 

 Fabricius = Ph. corniceps, G. R. Gray, of which the type 

 is contained in the British Museum). It is indeed possible 

 that the Eastern species of this group will require forming 

 into a distinct genus when a better knowledge is obtained 

 of Serville's type. 



1. (266.) Creoxylus corniger. 



Brunneo-rufescens ; capite rugoso, vertice cornubus duo- 

 bus compressis auriformibus tuberculisque pluribus pos- 

 ticis clevatis alterisque anticis minoribus ; prothorace tuber- 

 culato ; mesothorace tuberculis majoribus instructo ; teg- 

 minibus rufo-brunneis, ovalibus, apice acutis, costa mediana 

 valida ; alis obscuris, hyalinis, costa opaca, rufo-brunnea, 

 basi pallida ; pedibus concoloribus ; tibiis anticis extus 

 lobis duobus foliaceis rudimentalibus ; femoribus inter- 

 mediis foliolis 4, 2 externis 2que internis, loboque parvo 

 interno subapicali ; tibiis extus versus basin foliolo altero- 

 que fere apicali ; femoribus tibiisque posticis foliolis simi- 

 libus, at multo minoribus ; antennis rufo et brunneo aunu- 

 latis. 



Long. corp. unc. 2, lin. 3. 



Creoxylus corniger, Serville, H. N. Orth. p. 265. 

 Xeroderus corniger, Be Haan, Orth. Orient, p. 116. 



Hab. ? 



2. (267.) Creoxylus spinosus. 



Nigrescenti-brunneus ; capite bicorni, cornubus aurifor- 

 mibus, dentatis ; thorace scaberrimo, mesothorace antice 

 bispinoso ; tegminibus longis, juxta basin elevatis, reticu- 

 lars ; alis subhyalinis, ciuereis, nervis brunneo-nigris ; area 

 costali basi carnea, reticulata ; abdomine piceo ; pedibus 

 (anticis casu deficientibus) ; femoribus mediis dentatis, pos- 

 ticis vix dentatis, tibiis simplicibus. 



Long. corp. circ. unc. 2\ ; cap. lin. 2 ; proth. lin. 2 ; 

 mesoth. lin. 4; metath. lin. 4; abdom. circ. unc. \\ ; 

 tegm. lin. 6 ; alar, expans. unc. 3|. 



