164 ENTOMOLOGICAL CALENDAR. 











g or thirty eggs in a crease in the leaf of the young plant. In 
r days, in warm weather, they hatch, and the pale-red larvæ “era 
of the plant. Here they imbibe the sap by suction alone, and, by the 
simple pressure of their bodies, become imbedded in the side of the ste 
T hree larvæ thus imbedded serve to weaken the plant, and ca 
it to wither and die. The second brood of larve remains t 
winter in the flax-seed, or puparium. By turning the stubble with | 
plough in the autumn and early spring, its puparium may be de 
and thus its ravages may be checked. (Fig. 1 represents the femi 
which is about one-fourth as large as a mosquito: a, the larva; byt 
pupa; and c mini o the joint near the ground where the maggi 
live.) The same may be said of the Wheat-midge (Cecidomyia ii 
which eee 8 wheat in the ear, and which transforms an inch 
beneath the surface 
Among the iiastachiea which appear this month are the Turnip 
fly (Pontia eee which lays its eggs the last of the month. 
hatch in a week or ten days, and in about two weeks the larva ¢ 
rood appears in August and September. Vanessa J-album and V-t 
rogationis appear in May, and again in August ig ae 
caterpillars of the latter species live on the elm e, and 
Grapta comma also feeds on the hop. Alypia AE flies | 
time, and in August its larva feeds on the grape. Sphinx gordius 
olina, and other Sphinges and Sesia (the Clear-winged Moth); £ 
t of May. Arctia Arge, A. virgo, A. phalerata, and other § 
from the last of May through the summer. Hyphantria t 
Wearer, is found in May and June. The moth of the Salt- 
Fig.2a. pillar appears at this time, and various 
‘Cut-worms (Agrotis) abound, hiding in 
es a 
and atten blossoms of flowers and a 
fruit t 
The Wite-pin Weevil (Pissodes — 
strobi, Fig. re: larva; Fig. 2b, pupa; and Fig. 2, beetle) flies 
warm days. We have found its burrows winding irregularly 
inner surface of the bark and leading into the sap-wooe- Bach 
which it hybernates, in the middle of March, contains the yellow” 

