I 9 8 



lyi'KODL'CTIO.Y TO EXTOMOLOGY. 



masses of eggs arc deposited on the bark <>f trees, on fence-rails, under 

 the -f out-buildings, or wherever the female chances to be 



FIG. 167. Prionidus cristatus. (From Glover ) 



at the time of oviposition, to the number of 70 or more. The 

 nymphs when young are blood-red, with black marks, and do not 

 mblethe adult insect excepting somewhat in form and in habits. 

 Hoth the nymphs and adults feed upon all other insects they can 

 overcome, not even sparing their own kind. "They kill their prey 

 by inserting into it the proboscis, which ejects a most powerful 

 poisonous liquid into the wound. The victim thus pierced dies in a 

 very short time. They then leisurely suck the juices out, and drop 

 the empty skin. The perfect insect is of a gray color, and has a high 

 semicircular ridge or projection on the crest of its thorax." (Glover.) 



Family XXIII. NAIIID.I-:.* 



We have but few representatives of the X abides ; but some of 

 them are very common. In this family the body is oblong, and 



* Nabidae: Nabis, a proper name. 



