PHASMIDiE. PRISOMERA. 



47 



mesotli. lin. 7 ; metatli. liii. (i ; abdom. liu. 15 + lin. 5 = 

 lin. 20. 



Loug. Corp. foem. uac. 3| ; aiiteu. uuc. If; proth. liu. 2 ; 

 mesoth. liu. 8 ; metath. liu. Ci ; abdom. liu. 18 + lin. 5 = 

 liu. 23. 



Hub. lu Chiua. 



Moderately elongated, subcylindrical, smooth, except the 

 mesonotuni, which is finely granulated ; pale green, with 

 the middle of the body browner ; the head and prouotum 

 with a fine impressed central longitudinal Hue, and the 

 remainder of the body with a fine raised line down the 

 back. The anteuuse are moderately loug 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 aual 

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

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

 aud 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 comj)Ound spine on the under side. 



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

 terminal segments of tlie abdomen seen from t)ie side. 



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

 ments of the abdomen seen from the side. 



Genus 7. PRISOMERA. 

 Prisomera, G. R. Gray. 



Head small, subquadrate. Antennse long, setaceous. 

 Thorax scabrous, sometimes spiued, nearly as long as the 

 abdomen, cylindrical. Abdomen rather short, cylindrical. 

 Legs short, furnished with dentated perfoliated lobes. 



1. (125.) Prisomera femoratmn. 



Apterum, magnum, elongatum, lineare, teres, fuscum ; 

 capite subrotundo ; antenuis brevibus, oculis promiuulis ; 

 pedibus mediocribus, foliato-compressis ; tibiis duabus an- 

 ticis multo latioribus, femoribus intermediis supra bilo- 

 batis ; oviductu ensiformi, reflexo, dentato. 



Long. corp. circ. uuc. 5. 



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

 Sjx'ctr. 1)1. 14. f. 54. 



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

 Phasma latipes, Lichfensfein, Limi. Trans, vi. ]). II. 

 Mantis foliopeda, O/ir. Enc. Mi'th. vii. p. (i3S. 

 Bacteria femorata, ftcra., Bitrm. Ihtndh. d.Eiit. ii.2.p.565. 



Be Haan, Orth. Orient, p. 134. 



Hub. In Amboina. Mus. Holthuys. 



2. (126.) Prisomera spinicoUe. 



Bruuneo-nigrum ; capite cornibus duobus auriformlbus 

 spinisque armato ; thorace scabro ; mesothorace (j-, meta- 

 thorace 2-spiuosis, spiuis longis, acutis ; abdomiue subbrevi, 

 scabro ; pedibus longis, femoribus 4 posticis juxta basin 

 late deutato-perfoliatis ; tibiis foliato-compressis, tarsorum 

 auticorum articulo basali compresso (foem.). 



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

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

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



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

 Hub. 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 aud 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 bej'ond the extremity of the 

 abdomen ; the auterior tarsi have the basal joint compressed 

 aud elevated, the tibiaj 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 Phasmidse ') may be the male of his Bacteria 

 acanthopus. 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. \jon^\t\\.i[o Acanth. perfoliati B. Corpore grauu- 

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

 uis pedibusque tomcntosis ; pedibus anticis raargine superiori 

 crenulatis ; femoribus extus convexis, tibiis supra foliolis 

 tribus 2-deuticidatis, tarsorum articulo 1 " cristato ; femo- 

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

 minentibus ; tibiis mediis infra medium iufra lobo dilatato 



