1393] Entomology. 167 
bers of very small, thin, seed-like bodies, which became attached to 
their arms, hands, clothing, and faces. Examination proved these to 
be the cases of a very small larva, which lived within. They were 
afterward observed to be very common on the narrow-leafed willows 
(Salix sp.), a round-leafed species of leguminous tree, and on many, 
other plants. They were usually found on the edges of leaves, the 
Fig. 2.—Larva, dorsal view—much enlarged. (Hair line shows nat- 
ural si 
case being attached thereto by a few extremely fine strands of silk. 
They occurred especially on the Salix, and were found at 2500 feet and 
more below the rim. 
An examination of this larva proves it to be lepidopterous. It has 
not been bred, but the description of the larva and case given below, 
together with the figures, will serve to identify it. It is peculiar as 
exhibiting no trace of legs or prolegs, yet it is unmistakably lepidop- 
‘terous. 
Description of Larva.—Body 13-jointed, whitish, very sparsely 
clothed with weak hairs; head and second segment with anal hooks, 
somewhat rufous. Head narrower than second segment, & little more 
than one-half as wide, subcircular in outline from above, widely and 
deeply notched behind; two small approximated simple a A 
extreme outer anterior edge of lateral dorsal plates of head just ac 
of antennæ, the anterior one slightly larger than the — 
Antenne small, short, 3-jointed ; first joint stout, a little longer t 
wide, with terminal bristles on outer edge; second joint very sm 
and short ; third joint a little narrower and longer than second, or 
to a point at tip. Mandibles stout, narrowed and twice- 
