30 Annals Entomological Society of America  [Vol. XIV, 
stored in a large bean-shaped mass in the mid-intestine, and is 
voided by the adult immediately following the pupal molt to 
the adult. 
The food of the larve is predominantly aphids. They 
exhibit. little choice between the different species of aphids, 
though some are more suitable for feeding them in rearings 
than others. Other small or soft bodied insects, as Jassids, 
Capsids, Coccids, small Diptera, and many kinds of insect 
eggs have been used in rearing work. 
The classification and identification of the larve of the 
various species is no more difficult nor complicated than the 
identification of adults. Most published descriptions of larve 
are inadequate for naming or placing them in a key. The 
black spots on the dorsum of the head serve to divide the larve 
into three groups, which in the main are most closely related as 
adults. The first group has two longitudinal and converging 
spots on the head as in the case of the following species of the 
genus Chrysopa; plorabunda, rufilabris, and interrupta. C. 
bimaculata has two narrow, black bands on the head, but they 
extend cross-wise and the larva is a trash carrier. The next 
group has three black triangular spots on the dorsum of the 
head. This is characteristic of C. oculata, (which includes 
the two nominal species albicornis and chlorophana, which the 
writer places in synonomy with oculata on the basis of rearings), 
C. chi, (including also:the nominal species ypsilon also placed in 
synonomy with chi), and C. nigricornis. The next group have 
four long, narrow bands on the dorsum of the head, a short 
inner pair, and a longer outer pair arising at the bases of the 
antenne and extending to the anterior border of the prothorax. 
This group contains the trash carriers, Chrysopa lineaticornts, 
lateralis, an unidentified species now being reared at Manhattan 
(thought to be cockerell1) and quadripunctata. In connection 
with the latter species, observations at Charlottesville, Virginia, 
clearly showed this species to be a transition in the trash carrying 
habit between the true trash carriers and the naked larve. 
Specimens were found with considerable debris on their backs, 
but it was not definitely arranged into a neat packet. There 
are more short, minute setz on the dorsum than in the naked 
larve proper, which suggest the hooked dorsal sete of the 
trash carriers. 
