58 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



beneath, with the anal styles obtuse and incurved. The 

 operculum of the female is swollen in the middle, and ex- 

 tends to the extremity of the abdomen. The legs are long, 

 those of the female stronger and shorter ; the basal joint 

 of all the tarsi scarcely longer than the following joint. 



Plate XXV. Fig. 3. The male, of the natural size. 3 a. The 

 terminal segments of the abdomen seen laterally. 3 h. The 

 terminal joint seen from behind. 



Fig. 4. The female, of the natural size. 4 a. The terminal seg- 

 ments seen laterally. 



31. (159.) Acanthoderus Servillei. 



Mas. " Brun, tres allonge", cylindrique. Pattes greles, non 

 epineuses ; une petite epine sur chaque segment du thorax 

 au-dessus de 1' insertion des pattes, et deux autres sur les 

 cote's du mctathorax ; antennes longues de seize lignes, sd- 

 tacees ; articles des tarses de meme largeur partout." 



Fcem. " Semblable au male mais plus grande et non 

 munie d' epines sur le milieu de corselet." 



Bacteria Servillei, Montrouzier in Ann. Sci. Phys. et Natur. 

 de Lyon, 1855, t. vii. p. 80. 

 Hab. Woodlark Island, frequens. 



32. (160.) Acanthoderus ? phyllocephalus, Westw. 



Fcemina vertice breviori, cornibus in apice foliaceis ; tho- 

 race spinoso, metathorace in medio spina crassa maxima ; 

 pedibus brevibus, elevato-carinatis ; femoribus 4 posticis 

 ante medium, omnibusque in apice biphyllis ; tarsorum arti- 

 culo lmo cristato ; operculo vaginali maximo, carinato, in 

 apice bisinuato. 



Long. corp. cum operculo, 9" 5'". 



Bacteria aurita, Burmeister, Handb. d. Ent. ii. p. 565 (nee 

 Acanthoderus auritus, Burm. op. cit. neque 



Cladomorpha ceratocephalus 1, G. R. Gray, ut opin. Burm.) 

 Hab. In Brasilia interiori. 



Genus 9. PYGIRHYNCHUS. 

 Pygirhynchus, Serville. 



Body elongate, subcylindrical. Head generally furnished 

 with auriform appendages ; ocelli wanting. Antennce long, 

 slender ; basal joint dilated, subovate. Thorax long, ru- 

 gose, sometimes spined ; mesothorax three times the length 

 of the prothorax. Abdomen subcylindrical ; anal styles 

 not prominent. Terminal dorsal segment and the opercu- 

 lum elongated, resembling a duck's beak. Legs of mode- 

 rate length ; thighs not membranous ; middle femora and 

 sometimes the posterior furnished with foliaccous lobes ; 

 basal joint of the tarsi not dilated. 



1. (161.) Pygirhynchus subfoliatus. 



Valde rugosus, brunneo-virescens j capite appendiculis 

 duobus auriformibus margine incisis tubereulisque duobus 

 minoribus posticis ; prothorace valde insequali, tuberculis 

 duobus minutis posticis ; meso- et metathorace carina dor- 

 sali in abdominis segmeuta basalia extensa ; metathorace 

 tuberculis minutis ; metathorace mesothorace e tertia parte 

 breviore, et similiter tuberculato; abdominis segmento 4to 

 ad apicem supra foliolo minuto, 5to foliolo majori in- 

 structs ; pedibus concoloribus ; femoribus intermediis folio- 

 lis duobus basalibus parum distinctis, duobusque apicalibus, 

 externo reliquis majori ; antennis concoloribus (fcem.). 



Var. Capite tantum tuberculis duobus minutis in- 

 structo. 



Long. corp. unc. 2y-2f . 



Pygirhynchus subfoliatus, Serville, H. N. Orth. p. 261. 

 Phasma (Bacteria D.) subfoliatus, Be Haan, Orth. Orient. 

 p. 134. 



Hab. In Brasilia. In Mus. Oxon. (Hopeiano), et Fry. 



A specimen of this insect in the Hopeian Collection at 

 Oxford, obtained from that of M. Marchal, and probably 

 identical with the Dejeanian specimen described by M. Ser- 

 ville, has the following proportions : — Corp. unc. 2f ; cap. 

 lin. 2 j proth. lin. 2 ; mesoth. lin. 6-^ ; metath. lin. 5 ; ab- 

 dom. lin. 11+lin. 7=18. 



2. (162.) Pygirhynchus coronatus. 

 Rugosus, brunneo-viridis ; capite tuberculato verticeque 



appendiculis rugosis auriformibus (coronam simulantibus) ; 

 prothorace granuloso, granulis nonnullis majoribus fere spi- 

 nosis ; mesothorace prothorace triplo longiori, carina media 

 tenui ad apicem abdominis extensa, utrinque tuberculis 

 duobus instructo ; pedibus concoloribus : anticorum angulis 

 dilatationibus parvis denticulatis ; intermediorum femoribus 

 foliolis marginis interni, una basali rotunda, elongata, altera 

 apicali majori, versus basin rotundata extus emarginata ; 

 tibiis intermediis foliolis duobus distinctis, primo externo, 

 altero interno basali, horum apicibus dilatationibus parvis ; 

 femoribus posticis tibiisque supra foliolis nonnullis subrudi- 

 mentalibus ; antennis concoloribus brunneo annulatis (mas). 

 Long. corp. cir. unc. 2£. 



Pygirhynchus coronatus, Serville, H. N. Orth. p. 26 1 . 

 Phasma (Bacteria D.) coronatus, De Haan, Orth. Orient. 

 p. 134. 



Hab. In America meridionali. 



3. (163.) Pygirhynchus Iphiclus, Westw. 

 Plate II. fig. 2. 

 Depressus, obscure fuscus, opacus, granulosus ; capite 



