PHASMID/E. PRISOMERA. 



47 



mesoth. lin. 7 ; metath. lin. 6 ; abdom. lin. 15 + lin. 5 = 

 lin. 20. 



Long. corp. foem. unc. 3^ ; anten. unc. 1 J ; proth. lin. 2 ; 

 mesoth. lin. 8 ; metath. lin. 6£ ; abdom. lin. 18 + lin. 5 = 

 lin. 23. 



Halt. In China. 



Moderately elongated, subcylindrical, smooth, except the 

 mesonotum, which is finely granulated ; pale green, with 

 the middle of the body browner ; the head and pronotum 

 with a fine impressed central longitudinal line, and the 

 remainder of the body with a fine raised line down the 

 back. The antennae are moderately long and slender. The 

 head and thoracic segments are unarmed. The abdomen of 

 the male nearly cylindrical, the three terminal segments 

 forming an elongated oval mass, pointed at its extremity, 

 formed of the terminal segment, which is deeply cleft nearly 

 to the base, and armed beneath with the two curved anal 

 styles, which are not visible from above ; the three term- 

 inal ventral segments short, the last swollen at its base, 

 and scarcely reaching beyond the base of the ninth dorsal 

 segment. The abdomen of the female is gradually attenu- 

 ated to the tip, the eighth and ninth segments being short, 

 the ninth emarginate, exposing a short semicircular lobe 

 (having the appearance of a tenth segment), with two anal 

 styles ; the operculum is boat-shaped, swollen beyond the 

 middle, and not reaching beyond the extremity of the ninth 

 dorsal segment ; the legs are rather short, and all the fe- 

 mora on the under side are armed with a small spined lobe 

 or compound spine on the under side. 



Plate VII. Fig. 2. The male, of the natural size. 2 a. The 

 terminal segments of the abdomen seen from the side. 



Fig. 3. The female, of the natural size. 3 a. The terminal seg- 

 ments of the abdomen seen from the side. 



Genus 7. PRISOMERA. 

 Prisomera, G. R. Gray. 



Head small, subquadrate. Antennae long, setaceous. 

 Thorax scabrous, sometimes spined, nearly as long as the 

 abdomen, cylindrical. Abdomen rather short, cylindrical. 

 Legs short, furnished with dentated perfoliated lobes. 



1. (125.) Prisomera femoratum. 



Apterum, magnum, elongatum, lincare, teres, fuscum ; 

 capite subrotundo ; antennis brevibus, oculis prominulis ; 

 pedibus mediocribus, foliato-compressis ; tibiis duabus an- 

 ticis multo latioribus, femoribus intermediis supra bilo- 

 batis ; oviductu ensiformi, reflexo, dentato. 



Long. corp. circ. unc. 5. 



Phasma femorata (Le Spectre aux pattes feuilles), Stoll, 

 Spectr. pi. 14. f. 54. 



G. R. Gray, Syn. Phasni. p. 15 (Prisomera f.). 

 Phasma latipes, Lichtenstein, Linn. Trans, vi. p. 11. 

 Mantis foliopeda, Oliv. Enc. Mith. vii. p. 638. 

 Bacteria femorata, foem., Burm. Handb. d. Ent. ii. 2. p. 565. 

 De Haan, Orth. Orient, p. 134. 



Hab. In Amboina. Mus. Holthuys. 



2. (126.) Prisomera spinicolle. 

 Brunneo-nigrum ; capite cornibus duobus auriformibus 



spinisque armato ; thorace scabro ; mesothorace 6-, meta- 

 thorace 2-spinosis, spinis longis, acutis ; abdomine subbrevi, 

 scabro ; pedibus longis, femoribus 4 posticis juxta basin 

 late dentato-perfoliatis ; tibiis foliato-compressis, tarsorum 

 anticorum articulo basali compresso (foem.). 



Long. corp. foem. 4" 4'" ; anten. 2" 5'" ; cap. lin. 2% ; 

 proth. lin. 2 ; mesoth. lin. 12; metath. lin. 10 ; abdom. 

 lin. 22 + lin. 5=lin. 27. 

 Prisomera spinicollis, G. R. Gray, Syn. Phasm. p. 16. 



Hab. Ceylon. B.M. 



The typical specimen of this species is preserved in the 

 National Collection ; it is a female, and is remarkable for 

 the large foliated and dentated lobes near the base of the 

 four strongly curved posterior femora ; the six strong spines 

 on the mesothorax and the two on the metathorax are not 

 arranged symmetrically in pairs. The three terminal seg- 

 ments of the abdomen are rather short, nearly equal, the 

 terminal one with its apical angles produced ; the oper- 

 culum extends a little distance beyond the extremity of the 

 abdomen ; the anterior tarsi have the basal joint compressed 

 and elevated, the tibiae being compressed at their extre- 

 mity ; the four posterior tibise are compressed from the 

 base to the middle, and the tarsi are simple. 



Burmeister suggests that this insect (with which, how- 

 ever, he was only acquainted from the description in the 

 ' Synopsis of Phasmidae ') may be the male of his Bacteria 

 acanthomas. The insect before us, however, is itself a 

 female ; and the male of Burmeister' s species, according to 

 De Haan, is winged. 



3. (127.) Prisomera bifoliatum. 



"Fcem. Longitude Acanth. perfoliati B. Corpore granu- 

 lato ; capite inter oculos transversim acuto-carinato ; anten- 

 nis pedibusque tomentosis; pedibus anticis margine superiori 

 crenulatis ; femoribus extus convexis, tibiis supra foliolis 

 tribus 2-denticulatis, tarsorum articulo ]°cristato; femo- 

 ribus mediis lobo eroso, infra marginatis, dentibus 4 subpro- 

 minentibus ; tibiis mediis infra medium infra lobo dilatato 



