AMBUSH-BUGS. 41 
Coriscus subcoleoptratus Kby. is very peculiar in appear- 
ance, possessing as a general rule but very short wing-covers, 
barely extending to the second abdominal segment. This form 
is wide, flat, shining, of jet-black color, bordered with yellow 
on the sides of the abdomen, and with yellowish legs. Prof. 
Uhler, in describing the winged form, says that it is much 
narrower behind, and that the wing-covers and abdomen are 
rather dusky, or piceous, than black. 
All the members of this family, of which a number occur in 
Minnesota, are predaceous, hence beneficial. 
Fic. 33.—Corisecus subcoleoptratus Kby. Original. 
FAMILY PHYMATIDAE. 
(Ambush Bugs). 
This is a very small family of insects, and only two species 
occur in Minneseota, both very similar in general appearance 
and habits. But few persons are familiar with these peculiar 
beings, who conceal themselves so well in the flowers of vari- 
ous plants that they are not readily detected, notwithstanding 
their grotesque forms. 
