HAWK-MOTHS. 37 
soon followed by an increased number of parasites, from 
which this species of moths suffers greatly. A two-winged 
fly, a species of Tachina, destroys large numbers of the 
larva, and it is often quite difficult to find a single caterpillar 
that does not show the cream-white eggs of this parasite. 
THE DARK-VEINED MORNING SPHINX. 
(Deilephila galu var. chamenerti Hartr.). 
This is a closely allied species, but smaller and not as 
common, though by no means a very rare insect. Its larva 
has also been found feeding upon the leaves of the grape- 
vine, but it prefers those of plants belonging to the genera 
Galium and Epilobium. Other plants are also eaten. The 
moth has the same greenish-olive color as lineata, and al- 
most the same stripes and markings. The central band on 
the fore-wings in this species is wider and more irregular; the 
thorax lacks the white markings on the disk, and the veins 
are not lined with white. The hind-wings in both species 
are almost identical in coloration and markings. This 
insect is quite common in Europe, and the form found here 
hardly deserves the name ofa variety. It is shown in Fig. 
ar, Plate V. 
The caterpillar, measuring about two and a half to three 
inches in length, has a small dull-red head, with a black 
stripe across the front at base. The body is deep olive- 
green, polished, with a pale yellow line along the back, ter- 
minating at the base of the caudal horn; on each segment, 
from the third to the twelfth, is a pale yellow spot on each 
side, about half way bet ween the dorsal line and the breath- 
ing-pores, largest on the segments from the sixth to the 
eleventh; the spot on the twelfth segment is elongated, and, 
extending upwards, terminates at the base of the horn. 
_ The yellow spots are placed ina wide but indistinct blackish 
band, and the sides of the body below the spots are thickly 
