LIBRARY

154 COLLEGE ENTOMOLOGY
slender; body mostly flattened, strikingly colored; carnivorous) (in
part) . . . . . . . PERLIDlE p. 156
4. Palpi with apical segments more slender than the basal ones (in part)
PERLIDlE p. 156
Palpi with apical segments as wide as the basal ones . 5
5. Second segment of tarsus much shorter than either the first or third
(in part) . NEMOURIDlE p. 156
Second segment of tarsus not so short 6
6. Third segment of tarsus not longer than the combined first and second;
cerci glabrous, as long as the body (in part) . . NEMOURIDlE p. 156
Third segment of tarstls twice as long llS the first and second together
(labial palpi never reach beyond the tip of the ligula) . CAPNIIDlE p. 157
Family PTERONARCIDlE (Jacobson and Bianchi 1905) Enderlein 1909
(Pter'o-nar'ci-d