1881.] Entomology. 65 
irregular patch, apparently without order, sometimes entirely 
overlying each other so that it was impossible to make an 
exact count, but the mass contained not far from the same num- — 
ber as in the other case. 
The opening to the ovipositor, immediately after the expulsion 
of an egg, opened and closed several times, the external side parts 
moving laterally, after which the abdomen was bent down, the 
opening distended and an egg excluded. There was no move- 
ment of the parts to arrange or place the egg, nor was there any 
further manipulation of the egg, on the part of the female, but at 
once the abdomen was raised, the usual movements of the open- 
ing and closing the orifice took place, when the apex was again 
bent down and another egg laid. 
The eggs laid on the 5th of July began to show a dark spot 
near the free end about the roth, which grew more and more vis- 
ible till the 13th, when with the lens the dark spot showed itself 
to be the head of the embryo, and the green contents within could 
be resolved into the outline of the body doubled up. On the 15th 
of July, the young emerged, and a more restless lot of larve I 
do not remember to have seen. 
These young do not eat the shells of the eggs as some larve 
do, but travel away from them as though their lives depended 
upon it. Finally some of them settled down in the axils of the 
leaves, spinning a few silken threads over and between the leaf 
and the stem. For a week they were-quiet and I could not per- 
ceive that they had eaten anything since hatching. They had 
even lost-the green color of the body and were now dull ochre 
yellow, except the head and thoracic plates, which were, as before, 
pitchy black, 
At this time I transferred them to a living fir tree, but all died 
within a day or two, possibly because of the rough handling 
necessary to dislodge them. : 
we may be permitted to conjecture the rest of their life history, 
they possibly spin themselves up in a cocoon in the axils of the 
leaf, where they remain during the fall and winter, coming out in 
the spring to feed up and pass through their later transformations. 
The full-grown larva is 20 mm. in length, somewhat fusiform. 
Head of the ordinary form, jet black, as are also the middle joints 
of the antenne, the legs and thoracic plate. The remaining joints 
of the antennz, palpi, integument between the joints of the legs, 
mouth parts, front edge of the thoracic plate, and a narrow long- 
itudinal line dividing the plate in two halves, dull light green. 
General color of the body above, dark brown, inclining to green-_ 
ish-yellow between the segments. Tubercles, anal plate and 
prolegs, straw-yellow. A lateral yellowish stripe extends from 
the head to the last segment, having the st:gmata in the center and 
enclosing on the lower side, the lateral folds of the segments, and 
in its upper edge, the second row of tubercles from the dorsum. 
The anal plate is somewhat roughened and sparsely clothed a 
. : ‘ 
