168 Journal New York Entomological Society. [Voi.iv. 
lar general surface into a series of latticed ridges. They are as follows: 
(i) large, intersegmental, angularly elliptical; (2) small, addorsal, 
segmental, rounded triangular; (3) under the subdorsal iidge, small, 
triangular, shallow; (4) large, lateral, intersegmental, elongate or nar¬ 
rowly elliptical; (5) of moderate size, above the lateral ridge, rounded 
triangular, segmental; (6) very small, shallow, alternating with the lower 
part of the fifth series just above the lateral ridge. In the subventral 
space a shallow ill-defined series (7) alternate with the spiracles, and 
another similar one (8) is situated below them. 
This larva is throughout very smooth, the setae practically disap¬ 
pearing at first molt. The coloration is green, a large red mark in the 
shape of an irregular diamond or large blurred cross gradually appears 
on the back, beginning in the form of a small patch between two yellow 
lines. The marking appears to be mimetic of red patches or galls on 
its food plants. 
The larva is rather highly specialized, especially in regard to its 
skin structure which somewhat approaches that of Eulimacodes , while 
the setae disappear early. Its shape, however, is quite normal and typ¬ 
ical of the smooth Eucleids in general, and the sette of stage I are in a 
less advanced degree of degeneration than in Apoday-inversa or Tortn- 
cidia fasciola. 
Affinities, Habits, etc. 
This larva is allied to the small species which I have doubtfully 
identified as Heterogenea flexuosa and doubtless also to the European 
H. ase/la, though this has not been examined by me. It belongs to 
the group of the northern smooth Eucleids, and represents a more primi¬ 
tive state than Apoda in that setae ia and ib on joint 4 and i and ii on 
joints 5 to 12 are partly united into a furcate or Y-shaped spine, both 
limbs of equal length, whereas in Apoda one limb has been reduced to # 
a slight prominence. 
The moths emerge over a considerable period of time. Full grown 
larvae may be found unusually e^rly, often during July, while others do 
not mature till late in September. This power of early emergence 
gives the species a northern range. In the Adirondacks it was the only 
Eucleid met with. In Long Island eggs and young larvae were found 
on the trees at the same time that other larvae were matured. 
The larva is a rather low feeder, occurring on higher bushes and 
the lower branches of trees, along the edges of woods, etc., not as a 
rule in very shaded locations. Rarely more than one larva is found on 
