COSMOPEPLA CARNIFEX: DESCRIPTION. 145 



Pentatoma carnifex Kirby: Faun. Bor.-Amer. iv, 1837, p. 375, No. 1. 



Cosmopepla carnifex Stal: Enum. Hemipt., ii, p. 19, No. 1. 



C. carnifex. Uhler: in Bull U. S. G.-G. Surv. Terr., i, 1876, p. 18; id., iii, 1877, 



p. 402 (localities). 

 C. carnifex. Glover: MS. Notes Journ. — Hemipt., 1876, p. 35, pi. ii, f. 6. 

 C carnifex. Liktner: in Count. Gent., xxxix, 1874, p. 488, c. 1. 



This insect is one of the true bugs, belonging, as above recorded, to 

 the Heteropterous division of the Hemiptera, in which the wings instead 

 of being deflexed are horizontal, the upper pair, or wing-covers, as they 

 might more appropriately be called, are thickened or " leathery," with 

 their tips thin and overlapping. The under wings are thin and mem- 

 branous. The proboscis, rostrum, or sucker is much like that of the 

 other Hemiptera, except that it springs from the front of the under side 

 of the head instead of beneath it, posteriorly near the base of the fore 

 legs. 



Description. 



The Imago. — The C. carnifex has much the general appearance of 

 the Harlequin Cabbage-bug, Murgantia histrionica, 

 noticed in my preceding report, having the same col- 

 ors, but being a smaller insect, and proportionately 

 broader in form. Its length is about 0.23 of an inch, 

 and its breadth 0.17 in. The general color is shining 

 black. The head, thorax and coriaceous portion of the 

 wing-cases are granulated. The thorax is crossed by 

 a transverse elevated ridge, marked with dull orange 

 and is bisected by a slender mesial line of the same 

 color. Coriaceous portion of wing-covers margined 

 with orange, which is broader basally, thence becoming 

 obsolete; margin of abdomen, also, orange. The scu- 

 tellum is long, pointed, extending over two-thirds of 

 Fio. .36.— Cosmopepla the abdomen, and is marked with two triangular orange 



CARNIFEX ; a, the pupa; b ^i ^- i -j t-^i. ^ i 



the imago. spots near the tip, one on each side. 1 he antennae, legs 



and proboscis are black. The insect enlarged from the natural size 

 shown by the lines beside it, is represented at h in Fig. 36. 



The Pupa. — The pupa, shown at a, is 0.20 by 0.16 of an inch in 

 length and breadth. It is dull yellow, with the eyes, antenncC and legs 

 (except their basal portion) black. The proboscis is black at the tip. 

 The head h^s two longitudinal mesial black lines which diverge pos- 

 teriorly. The thorax has a black line on its hinder margin, centrally, 

 which is sometimes bisected at the middle, and also two rather large 

 black spots, centrally on each side pointing backward and sometimes 

 19 



