40 DAMSEL-BUGS. 
winter quarters. Nabis fusca Stein (Fig. 31) is a member of 
the sub-family Nabina, and two extreme forms of the sub-family 
Coriscina are shown in the illustrations Fig. 32 and Fig. 33. 
Nabide have an oblong body, somewhat oval behind, with 
a thick head, long and curving down in front, and terminating 
in a long, slender and four-jointed beak. The front thighs are 
thick, spindle-shaped; the tibia are armed on the inside with 
Upper wing of Nabide. 
minute spines. The wing-covers are either longer than the ab- 
domen, or greatly abbreviated. 
Coriscus ferus Linn. is our most common member of this 
family. It measures about one-third of an inch in length, is 
pale yellow with numerous minute brown dots, and has dusky 
Fic. 31.—Nabis fusca Stein. After Bruner. 
veins on the membrane. It occurs both here and in Europe, and 
is frequently found hiding among the flowers of the golden-rod, 
where it lurks to capture visiting insects. It also destroys large 
numbers of the grass-infesting species of leaf-hoppers. 
