1895.] Of a New: Classification of the Lepidoptera. 791 
The pupa of Hepialus is said by Chapman to differ from 
that of Tortrix “in having the third abdominal segment free, 
but in a peculiar and modified manner,” etc. He does not re- 
fer to the mouthparts. I have not seen the pupa of Hepialus, 
but have examined the pupa of the Australian Oncopera intri- 
cata (Fig. 7), and of the Mexican Phassus triangularis H. Edw., 
both of which present some remarkable generalized features. 
In the former genus, the labial palpi are visible, the entire 
piece is very wide at the base and is divided at the middle 
into the two pupal cases. Between it and the deeply lobed 
labrum is a piece, unless the two lobes are the paraclypeal 
pieces, of the nature of which I am uncertain. It is the homo- 
logue of the eye-collar, and if so, are the two lateral portions 
the maxillary palpi? The maxille themselves (mz.) are 
well developed, but at their base are divided by an im- 
pressed line, representing a portion which I am unable to 
name. The three pairs of feet (I, II, III) are easily identified. 
The outer division of the eye is large; and the cocoon-breaker 
consisting of two solid thick ridges on the vertex adapted for 
breaking out of its cell in the tree it inhabits, is marked. 
Abdominal segments 3-7 are free in ¢, and on 3 to 6 is a row 
of spines at each end; on segments 7 and 8 there are four 
transverse rows of stout spines, and on 9 two rows of small 
spines. There isnocremaster. On the under side of segment 
8 isa row of about 15 stout spines. Vestiges of three pairs of 
abdominal legs are distinct. The pupa is provided on the ab- 
domen segments with a few long setz. 
The pupa of Phassus (Fig. 8) is remarkable. The larva 
bores into a very hard tree, according to the late Mr. Henry 
Edwards, who kindly gave me a specimen of the pupa. The 
. head is remarkably adapted for its life in a cell, being broad, 
obliquely truncated, the small antenne being protected by the 
flaring sides of the head, which is very solid, with numerous 
rugosities and small tubercles. The region about the mouth 
is remarkable. The clypeus and labrum are very narrow, 
_ the eye transversely elongated, with an impressed line in the 
middle. The eye-collar (mz. p) is distinctly separated from 
the maxillee (mz). 
