LIBRARY

APTERA 76
Approximately 15 genera and 100 species have been described from the following
regions, listed in order of number of species: Palcearctic, Nearctic, Neotropical,
Ethiopian, and Australasian. Iapyx subterraneous Packard, (japyx), [,
americanus MacGillivray, I, diversiunguis Silvestri are perhaps the best known
FIG. 31. Anajapyx vesiculosus Silvestri of Italy. (After Silvestri, 1907.)
North American species. The smaller species measure only six mm. whereas one
of the largest species, Heterojapyx souliei (Bouvier), of Tibet, attains a length of
49 mm. None of our species appears to enter extensively into insect collections.
They are collected and mounted according to the directions for the CAM­
PODEIDJE.