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REVIEWS AND BOOK NOTICES. 475 
b, pupa, c-g, different spines). Another is the Io moth (Fig. 124 
male, Fig. 125 female, Fig. 126 larva, Fig. 127 spines). 
Appended to the report is an article “On a New Genus in the 
Lepidopterous family Tineide : with remarks on the Fertilization 
Fig. 121, Fig. 122, 
Hemileuca Maia. Eggs of Maia Moth. 
of Yucea.” This insect is called Pronuba yuccasella, and its ap- 
pearance and structure may be learned from an examination of 
the annexed drawings (Fig. i. 
128, a, larva, b,c, moth, d—k, 
head and details of larva; 
Fig. 129 shows the strange 
form of the head ; b, maxil- 
læ and their palpi, e, a scale, 
J, a leg, g, labial palpus, h, 
fore, i, hind wing ; Fig. 130, 
pupa of male and female). 
Dr. Engelman had drawn 
attention to the fact that 
the yucca is incapable of 
self-fertilization, and Mr. 
iley acquaints us with the 
yucca moth which effects it. 
He observed that at night 
“with her maxillary tenta- 
cle (Fig. 116), so wonder- 
fully modified for the pur- 
Pose, she collects the pollen vce E 
In large pellets, and holds it under the neck and against the front 
trochanters. In this manner she sometimes carries a mass thrice 
