IlKMIPTKItA HETEROPTERA 375 



Genii'; 41. PRIONACA, C. //. 2!il. 



1. PuiONACA LATA, C H. 291. 



a. Silhel. Fioni Mr. Slaiiifoiih's collection. 



2. Peioxaca tortuosa. 



Testacea, ovata, rude fusco punclala ; caput tricarinatum, lubis lale- 

 ralibus lobum medium superantibus ; anteniKc fjilva, corporis diviidio 

 vix breviorrs ; thorax riKjis notnniUin anticis glahris indelermitiulis, 

 spinis laterulibus longis rubuslis ; abdomen dorso fuai o, xpina venlruli 

 coxas posticus attinr/ente ; membrana cincrea, icnis fuscis tortuosis. 



Testaceous, oval, thickly and rougbly punctured ; punctures and some 

 of the intervening spaces brown. Head with three slij^hi keels; lateral 

 lobes extending beyond ihe middle lobe, lloslruin extending to the hind 

 coxae. Antennae tawny, nearly half the length of the body; first joint not 

 extending to the front of the head. Thorax with some smooth slijjhtly 

 rugulose spaces near the fore border; hind angles forming two long siont 

 acute spines, which are slightly inclined forward. Abdomen brown above; 

 ventral spine extending to the hind coxie. Membrane of the fore wings 

 cinereous, lurid at the base ; veins brown, undulating. Hind wings cine- 

 reous. Leugth of the body o^ lines. 



The veins in the membrane of the fore wings sufficiently dislinguisb 

 this species from P. lata. 



a. Sarawak. Presented by W. W. Saunders, Esq. 



3. Prionaca tauricornis. 

 Testacea, lata, ovata, aspere punctata, fusco dense conspersa ; caput Ion- 



{jiusculum, lobis laleraiibus lobum medium perpaullo superantibus ; 



antcnnce rufesccntcs, grariles, corporis dimidio lonyiores ; thorax 



spinis duabus laleraiibus tonr/is validis suboblifjuis postice dentulis ; 



scutellum sat mcujnum ; spina veutralis coxas posticus allingtns ; 



membrana cinerea, venis fuscis bene determinatis. 

 Testaceous, broad, oval, roughly punctured, thickly speckled with 

 brown. Head elongate , lateral lobes extending very little beyond the 

 middle lobe. Rostrum extending to the hind coxa;. Antennie reddish, 

 slender, more than half thelength of the body ; firsi joint extending nearly 

 to the front of the head. Thorax slightly rugulose in front ; hind angles 

 forming two long stout acute slightly oblique spines, which are dentate on 

 the hind side. Sculelhiin rather long and hroad. Ventral spine extending 

 to the hind coxae. Legs stout ; tiliiie sliglilly furrowed. Membrane of the 

 fore wings cinereous ; veins brown, strongly marked. Length of the body 

 5 — 5^ lines. 



The spines of the thorax are longer than those of the preceding 

 species. 



a. Sumatra. From Sir Stamford RafQes' collection. 

 b. .'' Presented by W. W. Saunders, Esq. 



