BEMIPTEKA HETEROPTERA LYGJB1DJB. 



occur ;it Florissant, where its striking breadth of head and stunt fore f< nmra 

 distinguish it from all other forms. 



< i l.orolMS I.NFKKNoUr.M. 



I'l. L'.">, Fi-s. 17, l'<). 



I lead broadly riiundcd in front without tlie least sign of being ]"'"- 

 duced, in wliich it differs strikingly from all existing specie- 1 have IMM-H 

 able tn examine; twice as broad as long, with the small eyesju-t a> broad 

 as the front of the thorax; antenna 3 shorter than head and thorax com- 

 bined, verv slender, cylindrical, with no enlargement anywhere, the second 

 joint longest, the third and fourth successively shorter. The thorax is 

 nearly or quite twice as broad as long with gently convex side>. scarcely 

 narrower in front than behind, and the angles hardly rounded ; the surface 

 is very feebly punctate. Heinelvtra with the corium hardly reaching 

 beyond the middle of the abdomen, yery opaque fuscous with pale patch. - 

 or streaks following the course of the yeins ; membrane invisible. Legs 

 short, the tore femora (\\lieii turned so as to see the broader facei \er\ 

 stout, rotund, not more than half as long again as broad. Abdomen verv 

 broad and full. 



Length, 3.25 mni ; breadth. 1.45""". 



Klori>.-ant. Si\ specimens, Nos. 5610, 5734, 58G4, 5888, 64s;;. 13152. 



y OXYCARJ.NIN \ St&l. 



This group, much more higlilv developed in the ( )],[ \\'orld than in the 



New, has never been found fossil there; but here we have an extinct genus, 



1'rocrophius, in the shales of Florissant,. with three species. 



I '!;<)( 'Iv'nl'1 1 II "S gen. no\ . (rrpOj < 'rophiu>, nom. gen. >. 



The brevitx of the antenna' and of the corium at once distinguish this 

 from any living forms of l.vg;eid;e with which it would appear to be related, 

 and with which from its abundance in the rocks \\ e -,hoiild perhaps the 

 more expect to iind relationship. The brevity of tin- corium distinguishes 

 it from Ischnorh vnclnis with which its general form agree-, e>peciall\ with 

 the ( 'entral American specie.-, and 1 can Iind nothing nearer to it than Cro 

 phillS, trom which it differs decidedly in the antenn.-e. The head i> trian- 

 gular, -horter than liroad. together \\ ith the e\c> of the >a me breadth a- tin- 



