820 The American Naturalist. [September, , 
the bristles sufficing to set it in motion. The beetle appeared on May 
16th. 
In a short note on page 76 of the third volume of Psvcnr, Mr. H. 
L. Moody has given us a means of distinguishing the larve of four of 
the species of the family Pyrochroide that he has raised. The larva 
of Schizotus cervicalis he says is of a smoky tint, while the remaining 
three (mentioned hereafter) are yellow ; of these, Dendroides canadensis 
has long, slender, curved processes nearly one-third longer than the 
basal portion, and the cu/-de-sacs not visible from above; D. concolor 
has stouter, nearly straight processes hardly longer than the basal por- 
tion, and the tips are obliquely cut off on the inner side, while the cul- 
de-sacs are just visible (by the projecting lower margin) from above. In 
Pyrochroa flabellata the processes are nearly straight on the inner edge 
when viewed from below, and short, strongly dentate; the cul-de-sacs 
are very large, plainly visible from above. I notice that the length of 
the processes is subject to some little variation, but no doubt these char- 
acters will hold good in general. 
EXPLANATION OF PLATE. 
Fig.1. Hololepta fossularis Say, larva; a, pupa; b, mouth and an- 
tenna from below ; c, anterior leg; d, caudal appendix. 
Fig. 2. Pyrochroa flabellata Fabr., larva; a, pupa; b, antenna; c, 
mandible; d, terminal portion of abdomen from below; e, maxilla; f, 
mentum. 
H. F. WicknaM, Iowa City, Iowa. 
usc nme se 
