66 
of the body. They have 22 legs (6 pectoral, 14 abdominal, 2 cau¬ 
dal) ; length of full grown larva, one and one-half to two inches. 
Feed on the leaves of the American Elm, and occasionally on 
those of the willow. 
Their cocoons are spun among the rubbish on the surface of the 
ground, and from them issue thick-bodied, black or blue-black 
wasps. 
2. Abia caprifolii, Norton. 
Blueish green on the back and yellow on the sides, which are 
pale near the spiracles, and covered with small black dots. Between 
the segments is a small transverse yellow band with a black spot 
on the middle and one on each end. Head free, brownish black 
above, color of the body beneath, pale yellow. It lies curled up, 
and when disturbed emits a watery fluid from the pores on the sides 
of the body, and then falls to the ground. Number of feet, twenty. 
It feeds on the leaves of the Tartarian Honey-suckle. 
Spins a pale yellowish cocoon in August, in which it‘passes the 
Winter. 
3. Abia cerasi, Fitch. The Cherry Abia. 
Larval characters unknown, but like other larvae of the same genus 
it is probably twenty footed. 
Dr. Fitch reared specimens from cocoons found on the wild black 
Cherry, upon which the larvae probably subsist. 
The fly is black, with transparent smoky wings. Length .60 of an 
inch. 
4. Selandria ros.f,, Harris. The Bose-fly. 
Body green above, paler on the sides, yellowish beneath and almost 
transparent. The skin on the back is wrinkled transversely and 
covered with minute elevated points. Two small triple pointed warts 
are on the edge of the first segment back of the head. Head small, 
round, yellowish or rufous, with a black spot on on each side of it. 
There are two broods each year, the transformation being passed in 
a cocoon beneath the surface of the ground. The perfect insect is 
a small, black wasp-like fly with smoky wings. 
The slugs feed on the leaves of the rose bush, devouring only the 
parenchyma. 
5. Selandria cary^;, Norton. 
Body wholly covered with flocculent white tufts which are ruobed 
off on being touched. The naked worm is green, darkest above and 
with indistinct blackish spots on the sides. The head is white with 
a small black dot on each side. They have twenty-two feet. Cocoons 
of earth are formed near the surface of the ground. 
They feed on the leaves of the Hickory, being found in communi¬ 
ties of fifteen or twenty on the under-side of the leaves. Length 
.75 of an inch. 
The perfect insects are shining black; wings subviolaceous. 
