Arctiidae 
Form pallida Packard, Plate XV, Fig. 26, $ . 
The larvae are social in their habits, and spin great webs upon 
the foliage of almost all kinds of deciduous trees in the late 
summer and fall, and do a great deal of damage to orchards and 
nurseries. The insects pupate in loose cocoons, in crannies, 
and even under the loose surface of the soil. The species ranges 
over the United States from southern New England and New 
York to Texas and further west. 
(2) Hyphantria textor Harris, Plate XVI, Fig. 9, $ . (The 
Spotless Fall Web-worm Moth.) 
This species, which is closely allied to the preceding in its 
habits, may be distinguished by the white antennae, and the un¬ 
spotted abdomen. There are specimens of the preceding 
species, which have the wings as immaculate as in H. textor . 
The range of the insect is from Canada to the Gulf, and from 
Nova Scotia to California. 
Genus ARACHNIS Geyer 
A small genus containing eight or nine species found in the 
southwestern States of the American Union, Mexico, and Central 
America. 
(1) Arachnis aulaea Geyer, Plate XVI, Fig. I, $. (The 
Aulsean Tiger-moth.) 
Syn. incarnata Walker. 
The insect occurs in southern Arizona and ranges thence 
southwardly as far as Guatemala. The larval stages have been 
described by Dyar in the Canadian Entomologist, Vol. XXVI, 
p. 307. 
(2) Arachnis picta Packard, Plate XVI, Fig. 2, & . (The 
Painted Arachnis.) 
Names have been applied to a number of color varieties of 
this insect. It ranges from Colorado to southern California and 
northern Mexico. The larva feeds upon Lupinus. 
(3) Arachnis zuni Neumoegen, Plate XVI, Fig. 3, ? . (The 
Zuni Tiger-moth.) 
The figure we give will enable the student to recognize this 
pretty and rather rare species without any difficulty. It ranges 
from New Mexico to Arizona and southward on the table¬ 
lands. 
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