DYAR: LARVAE OF THE HIGHER BOMBYCES. 
131 
ated with iii, but several weak secondary ones in stigmatal and 
subventral regions. A simple brown coloration. Belongs to Com¬ 
stock’s Auzatidae. 1 
Falcaria lacertinaria, Linn. 
Thoracic region normal, ia and ib situated on low, rounded promi¬ 
nences. Setae distinct, i and ii on abdomen enlarged, a distinct 
seta below and behind iii, four setae in place of vi, and two on 
leg plates. Very similar throughout to the American Falcaria 
bilineata. 
Drepana falcataria, Linn. 
As in the preceding, but iii and its associated seta more nearly in 
line longitudinally. Setae larger and more distinct, the skin spines 
greatly developed, taking on the characters of short spiny secondary 
setae on the enlarged tubercles i and ii, especially on the thoracic ia 
and ib, forming there a crown of short setae surrounding the long 
primary seta, very much as in the warts of the young stages of 
some species of Apatela. Ornamentation like our 1). arcuata . 2 
Platypteryx harpagula, Esp. 
Head large, conic bilobed, a furcate horn-like prominence on joint 
4 formed of consolidated ia + ia. Setae reduced, short, but distinct, 
skin smooth; arrangement as in the preceding, the seta associated 
with iii a little above and behind it, iv close behind the spiracle; vi 
represented by three or four setae. Tail long, pointed. P. cul- 
traria , Fabr., and P. binaria, Htifn, have the same characters. An 
interesting development, not represented in America. 
Oreta rosea, Walk. 
Thoracic horn and tail well developed. Body roughened by the 
secondary tubercles, the primary setae finally obscured. (See Journ. 
N. Y. ent. soc., vol. 3, p. 67.) 
1 While the larva seems to he best placed in the Auzatidae from its simple larval char¬ 
acters, the moth is the type of Drepana according to Kirby and hence of the Drepanidae. 
My specimens of the moth show the accessory cell and are true Drepanidae according 
to Comstock, but Hampson figures and describes (Moths of India, vol. 1, p. 347) speci¬ 
mens in which the accessory cell is absent, vein III 5 “ is bent upwards and almost 
or quite anastomoses with ” IIK, Ills, III4. Thus the accessory cell is formed by an 
anastomosis of III 5 with the stalk of the other veins in the Drepanidae, leading to a 
cross vein formation, and not as supposed by Professor Comstock by an anastomosis 
of III3 and III4. So the foundation of the Auzatidae vanishes. 
2 As recently pointed out by Grote (Journ. N. Y. ent. soc., vol. 3,p. 166) and as here 
confirmed by larval characters, the Platypteryx of Kirby includes two generic types. The 
recognition of these gives four groups for the distribution of the generic terms, freeing 
Cilix for glcmcata and giving to Drepana the type falcataria as already used by Hamp¬ 
son. 
