74° CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



character is the longitudinal carina near the lateral margins of the 

 ventral abdominal segments. A single species occurs in New- 

 England. 

 N. simplex Uhler. 



Bull. U. S. Geol. Geog. Surv. Terr., i, 323, 1876. 



A rare species in New England. 



Branford, 6, 26 Apr., 1921 (M. P. Z.). 



Mezira Amyot and Serville. 



This genus includes rather large species, usually very dark in 

 color and with coarsely granulated surface ; first antennal segment 

 not extending beyond apex of tylus ; membrane with distinct 

 veins ; abdomen moderately convex ventrally. Two species of 

 generally southern and western distribution may yet be found in 

 New England. 



Lateral margin of pronotum acutely emarginate ; length about 



9mm lobata (Say) 



Lateral margin of pronotum sinuate ; length about 6 mm 



granulate (Say) 



Aradus Fabricius. 



This is a very large yet perfectly natural genus, containing in 

 all about 130 species, for the most part confined in their distribu- 

 tion to the northern hemisphere. The chief generic characters are 

 as follows : form flattened, the surface more or less roughly 

 granulate ; a small spine or tubercle placed anteriorly and obliquely 

 inward near the eyes ; pronotum with six longitudinal carinae, the 

 lateral pair very short ; hemielytra usually shorter and narrower 

 than abdomen, often greatly abbreviated or narrowed. The fol- 

 lowing key includes the species occurring in New England or 

 nearby and it will serve to locate most of the forms with a fair 

 degree of certainty ; in doubtful cases reference may be had to my 

 recent "Essay" on the genus, where full descriptions and detailed 

 figures are given.* 



Key to Species. 



1. Rostrum extending beyond base of head; lateral margins of pro- 



notum more or less explanate (Subgenus Aradus) 2 



Rostrum not reaching base of head; lateral margins of pronotum 

 not explanate (Subgenus Quilnus Stal) 26. niger 



2. Median carinae of pronotum slightly developed, obsolete anteriorly ; 



antennae scarcely longer than head 25. cinnamomeus 



Median carinae distinct, extending to anterior margin ; antennae 

 longer 3 



3. Second antennal segment about as long as third, both slender and 



cylindrical ; length more than 8 mm 4 



* Transactions American Entomological Society, xlvii, 1, 1921. 



