INSECTS INJURING OAK-LEAVES. 
163 
on the scrub willow (Salix humilis) in northern Illinois, aud on a rose 
bush, and states that they also occur on the common hazel, while Glover 
records them as living on the wild black cherry. 
Fig. 57. — H. maia; a, larva fully grown; b, pupa — natural size; c, abdominal, d, thoracic spine, of 
newly-hatched larva: e, spine of larva after first molt; /, g, spine of larva after third and fourth 
molts— enlarged.— After Riley. 
In the Oeutral and Eastern States the moths begin to issue from the 
ground late in September and early in October, " the males almost al- 
ways appearing first " (Riley). Both Lintuer and Riley record cases 
where the moths were retarded a whole year. " From a batch of larvae, 
which had all entered the ground before July 1, 1871, one moth did not 
issue till October 8, 1872." (Riley.) 
Hemilevca maia. male buck moth. — After Rilev. 
The eggs are deposited to the number of from one hundred to two 
Jiundred in naked belts, the smallest number of eggs in a mass being 
seventy. Riley thus describes the process of egg-laying: 
Holdiug firmly by nil ber feet, the female stations herself upon a twig, with her 
head usually toward its end. She then stretches her abdomen to its fullest extent 
and fastens the first egg; another is theu attached by its side, and so on, the body 
reaching round the twig without letting go the feet. In this manner, governed by 
