HEMlPTERA— HETEKUPTERA— LYGiElDiE. 407 



1. Necrochromus cockerelli. 



PI. 27, Fig. 10. 



Head smooth. Thorax fully twice as broad as long, the apex more 

 than three-quarters the length of the base, gently tapering with arcuate 

 sides, the front margin gently and broadly eniarginate with somewhat 

 rounded lateral angles ; sides marginate and on either side near the margin 

 a gently arcuate sulcus subparallel to the margin ; the posterior lobe sepa- 

 rated only by a slight carination ; whole surface uniformly and distinctly 

 punctate. Coi'ium of hemelytra relatively short, hardly surpassing the mid- 

 dle of the abdomen, clear, excepting a broad, fusco-fuliginous band along 

 the membranal suture and the fuscous punctate veins ; the whole of the 

 corium is also distantly punctate ; membrane clear , abdomen fusco-fuligi- 

 nous with a broad, submarginal, distinctly bordered, clear band not clearly 

 observable in all specimens. 



Length, 6.15°"°; breadth of thorax, 2.15°"°; abdomen, 2.85"". 



Named for Mr. T. D. A. Cockerell, the industrious entomologist of 

 Colorado. 



Florissant. Five specimens, Nos. 2229, 8139 and 8234, 9086. 10135, 

 11231. 



2. Necrochromus labatds. 

 PI." 27, Fig. 14. 



Thorax nearly two and a half times as broad as long, only a little longer 

 than the head ; apex only three-fifths the breadth of the base, transverse, 

 the sides oblique, gently arcuate, the outer anterior angles scarcely rounded ; 

 the surface uniform, heavily punctate. Corium of hemelytra relatively long, 

 reaching the middle of the outer half of the abdomen, pale testaceous except- 

 ing rather large fuscous spots along the inner half of the membranal suture ; 

 the whole surface punctate ; the veins infuscated ; abdomen as in last species. 



Length, 5"°"; breadth of thorax, 2 1.5°"°; abdomen, 2.8°"°. 



Florissant. One specimen. No. 2871. 



3. Necrochromus saxificus. 



Antennae as long as head, thorax, andscutellum, all but the apical joint 

 dark ; the latter clear except for some slight blotches. Thorax trapezoidal, 

 hardly half as broad again as long, tapering gently and regularly except 



