58 



CATALOGUE OF ORTHOPTEROUS INSECTS. 



beneath, with the anal styles obtuse and incurved. The 

 opercukmi 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 b. The 

 terminal joint seen from behind. 



Fig. 4. The female, of the uatwal 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 an tres sur les 

 cotes du me'tathorax ; antennes longues de seize lignes, s6- 

 tacees ; articles des tarses de meme largeur partout." 



Fcem. " Semblable an male mais plus grande et non 

 munie d'epines sur le milieu de corselet." 



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

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

 Eab. 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 hrevibus, elevato-carinatis ; femoribus 4 posticis 

 ante medium, omnibusque in apice biphyllis ; tarsorum arti- 

 culo Imo cristato ; operculo yagiuali maximo, carLaato, in 

 apice bisinuato. 



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



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



Acanthoderus auritus, Burm. op. cif. neque 

 Cladoniorpha ceratocephalus ?, G. R. Gray, ut opin. Burm.) 



Hub. In Brasilia interior!. 



Genus 9. PYGIRHYNCHUS. 

 Pygirhynchus, Serville. 



Body elongate, subcylindrical. H«ad generally furnished 

 with auriform appendages ; ocelli wanting. Antennse long, 

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

 gose, sometimes spined ; mesotborax 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 foliaceous lobes ; 

 basal joint of the tarsi not dilated. 



1. (161.) Pygii-hjTichus subfoliatus. 



Valde rugosus, brunneo-virescens ; capite appendiculis 

 duobus auriformibus margine incisis tuberculisque duohus 

 minoribus posticis ; prothorace valde intequali, tuberculis 

 duobus minutis posticis ; meso- et metathorace carina dor- 

 sal! in abdominis segmenta basaHa extensa; metathorace 

 tuberculis minutis ; metathorace mesothorace e tertia parte 

 breviore, et similiter tuberculato; abdominis segmento 4to 

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

 structis ; pedibus concoloribus ; femoribus intennediis folio- 

 lis duohus hasalibus parum distinctis, duobusque apicalibus, 

 externo reliquis majori ; antennis concoloribus (foem.). 



Var. Capite tantum tuberculis duohus minutis ia- 

 structo. 



Long. Corp. unc. 2^-2f . 



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

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



p. 134. 



Hub. 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. 2| ; cap. 

 lin. 2 ; proth. lin. 2 ; mesoth. lin. 6i ; metath. liu. 5 ; ab- 

 dom. lin. 11-i-lin. 7=18. 



2. (162.) Pygirhynchus coronatus. 



Rugosus, brunneo-viridis ; capite tuberculato verticeque 

 appendiculis rugosis auriformibus (coronam simulautibus) ; 

 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 niargiuis iuterni, una basali rotunda, elongata, altera 

 apicali majori, versus basin rotundata extus emargiuata ; 

 tibiis intermediis foliolis duobus distinctis, primo externo, 

 altero interuo 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. 261. 

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



p. 134. 



Hab. In America meridionali. 



3. (163.) Pyg^hynchus IpMclus, Westw. 

 Plate II. fig. 2. 



Depressus, obscure fuscus, opacus, granulosus ; capite 



