DYAR : LARVAE OF THE HIGHER BOMBYCES. 
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large and conspicuous, being discolorous, red or gray. Warti small, 
iv rudimentary with one hair or none, situated behind the spiracle; 
a distinct leg plate. On thorax, two warts above stigmatal wart, the 
upper behind and a little above the second ; iii represented by one 
seta. m 
Lithosia complana, Linn. 
Warts battened and compact with numerous short hairs. Wart i 
large, iv absent. On thorax iii absent; otherwise as in the preceding. 
Lithosia luridiola , L. griseola , and Pelosia palliatella have the 
same structure. 
Pelosia depressa, Esp. 
As above, but less hairy, while the upper thoracic wart and wart 
i on abdomen are reduced in size. 
Setina irrorella, Linn. 
Warts distinct, the hairs numerous and long. Wart iv on 
abdomen absent as above, i very small with but three or four hairs. 
On thorax the upper wart is absent, there being but one wart above 
the stigmatal wart as in the Euchromiidae. This larva has nearly 
the abdominal structure of the Nolidae, since wart i is almost gone. 
It appears that these analogies to the Euchromiidae and Nolidae 
are not homologies since the ultimate structures are derived 
differently. 
Family Euchromiidae. 
This family is a higher development of the true Arctians, related to 
them in much the same way as the Apatelidae are related to the 
Noctuidae. The upper thoracic warts have become consolidated 
into one. Usually the larvae are very hairy, but without secondary 
hairs, the development taking a course allied to that of the highest 
Arctians (Phaegopterinae), but exaggerated. Rarely there is a 
marked degeneration of the warts to single setae. My material is 
not so full as I could wish, for the family is largely a tropical one 
and difficult of access. 
Lycomorpha pholus, Drury. 
Warts degenerate, small, i, ii, iv, and v each bearing a single long 
coarse hair, iii and iv with two hairs; leg plate obscure. On thorax 
a cluster of three setae from approximate tubercles (ia, ib, and iia) 
representing a single elongate wart; below this a very fine rudi¬ 
mentary seta (iib). The stigmatal wart consists of three hairs 
