650 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 
INSECTS INFESTING THE WATER BEECH, HORNBEAM. 
Carpinus americona. 
Order Lepidoptera. 
1. Basilarchia astyanax Scudder. 
2. Heterocampa pulverea G. and R. 
3. Halesidota caryw (Harris.) Beuteumiiller. 
4. Lithocolletis coryliella Chamb. 
Order Diptera. 
5. Cecidomyia pudibunda O. Sacken. On the leaves, District of Coluin. 
bia. (Osteo Sacken.) 
INSECTS INJURIOUS TO THE SASSAFRAS. 
Sassafras officinale. 
1. PapUio iroilus Linn. 
The caterpillars feed during June and July on the leaves of sassa- 
fras and prickly ash, partially folding them into a slight web. Harris 
has figured and described the early stages of this butterfly, which 
appears from the middle of June to the early part of July ; the cater- 
pillars occur in August and September, pupating in the latter mouth. 
Pilate reports it as feeding on sassafras in Ohio. 
Young larva. — When small the caterpillars are blackish, with a white Hue on the 
side. After first molt olive or green on the back ; two black ocelli on the third seg- 
ment, four small orange-colored spots placed two and two, with a. central blue dot in 
each, the two anterior between the black ocelli and adjoining them, and the others 
behind them. Back with about eight blue dots, two and two; sides aud tail whit- 
ish; head pea-green; a more dilated white spot behind each side of the enlargement 
of the anterior part of the body. 
Full-grown larva. — Back pea-green, sides yellowish, head aud under side pink; 
a cross black line on the first segment; two orange-colored spots on the third aud 
fourth segments, those on the third with black centers. Length about 2 inches. 
2. Lagoa opercidaris (Abbot and Smith). 
Order Lepidoptera; family Bombycid^e. 
This moth inhabits the Southern States. The caterpillar is thus re- 
ferred to by Abbot aud Smith (Lepidopterous Iusects of Georgia, p. 105): 
The caterpillar feeds on the black haws, sassafras, plum, etc. It spuu on the 21st 
of September, aud the moth appeared July 18. This species always shapes ii- 
or cocoon as in the figure, fastening it to a twig. The flat end opens aud shuts like 
a door, aud is fitted with the greatest exactness. The insect continues in this web 
all winter in the worm state, not chaugiug to a chrysalis till within a short time of 
its final transformation into a fly. The caterpillar is shaped like the roof of a house, 
the hairs rising on each side gradually to a ridge down the middle of its back. 
