NORTH OP MEXICO. 379 



DIAPERIS, Geoff. 



Diaperis, Geoff., Ins. d. Envir. d. Paris, I. p 



Two species of this well known i, r aiu- occur in our fauna. 



D. hydni, Fab., El. 0. 585; Lap. Ann. Sc. Nat. 33, 335 i, Oln li. B, 273. 



This species is remarkably uniform in it- system of elytra! coloration, The elytra are 

 orange color, with a sutural black stripe, not reaching the scutellum, becoming irregularlj 

 wider toward the apex ; a small black -put at the anterior third, not very distant from the 

 suture, and another smaller, near the margin; a large irregular spol beginning at the 

 margin behind the middle, extending toward the suture without attaining it. and becom- 

 ing irregularly narrower. The head between the eyes i- rufous. The legs entirely black. 



Length .24 inch. 



Abundant in the Middle and Eastern S under bark or in fungi. 



D. i ii ii pes, oval, convex, -.1. I entirely rufous; antennae black except the three basal joints, which are 



rufous; thorax black, shining, finely and sparsely punctured. Elytra with distinct striae "I' m >derate punctures, in- 

 terstices finely but very sparsely puncl ured; color Mack, with a I p.i-al ami median transverse irregular band 

 and an oval apical sp on each elytron ilack except base. 1 wuisli, ex- 



cepting the anterior femora ami coxse, which are pali 



Length .25 inch. 



I and in Arizona, at Camp Grant, under Cottonwood bark. 



The differences between this species and the' European D. boleti, when viewed from 

 above, are ver] slight, the system of coloration is identical, the differences lean,'- in the 

 entirely rufous head and the pile legs, and by the interstices between the elytral striae 

 being much more sparsely punctured. The eyes are more closely approximate and the 

 frontal region of the head narrower in our species. 



BOPLOCEPB \1. \. Cast, el BrullL 



Hoplocephala, Cast, et limit,'. Am.. ,1. Sc. Nat. 23, p. 

 Arrhenoplita, Kirby, Fauna Am. Bor., p. '.'•:">. 



This genus differs from Diaperis in having the first joint of the hind tarsi longer than 

 the second; and from the genera which follow, by the same joint being less than the two 

 following together. The epipleuras are abbreviated. 



Our spi cies are four in number, of which two only are known to American entomolo-* 



gists. 



I lead of male with two horn-. 



Thorax red, elj tra gre< n or blue, with metallic lustre. vi r idi p e nn i s 



Thorax and elytra similar in color. 



(Color blue ; length I lines. c h a 1 y 1> i 



I ilor green ; length I * I i ■ bicornis. 



! I. ad of male simply tuberculate. 



(Thorax ferruginous, elytra black. collaris). 



