50 HALF HOURS WITH INSECTS. [Packard. 
honey-yellow, with the tips of the six tarsi, and sometimes 
the extreme tips of the hinder tibiae, and of the tarsal joints, 
pale dusky for a quarter of their length. The wings are 
partly hyaline, with black veins, a honey-yellow costa, and a 
dusky stigma, edged with honey-yellow. The male differs 
a little in having black coxae. Mr. Walsh states that the 
larva is a pale grass-green worm, half an inch long, with a 
black head, which becomes green after the last moult, but 
with a lateral brown stripe meeting with the opposite one on 
the top of the head, where it is more or less confluent; and 
a central brown-black spot on its face. It appears the last 
of June and early in July, and a second brood in August. 
They spin their cocoons on the bushes on which they feed, 
and the fly appears in two or three weeks, the specimens 
reared by him flying on the 26th of August.” This worm 
may at once be distinguished from the imported currant 
worm by the absence of the minute black warts that cover 
the body of the latter. The same remedies should be used 
against this worm as were recommended for the imported 
saw fly. 
The Currant Span Worm (Fig. 38, moth; Fig. 39, i, 2, 
caterpillar, 3, pupa). — Many persons in speaking of the 
f ig . 38 . “ currant worm ” confound the cater¬ 
pillar-like saw fly larva with the 
well-known geometer caterpillar, 
which is a native species, and was 
long since described by Dr. Fitch, 
under the name of Abraxas ribearia . 
As soon as the leaves of the currant 
Currant Span Worm Moth. are fairly expanded, late in May or 
early in June, the young caterpillars, scarcely thicker than 
a horse-hair, may be found eating little holes in them. In 
about three weeks after hatching, it becomes fully grown; 
it is about an inch long, and bright yellow in color, the body 
being covered with large black dots. The chrysalis is shining 
18 
