392 Dr. T. A. Chapman on Lriocephala allionella 
this, the upper members of the last-mentioned double 
row being balls like the others, the lower forming the 
series of false feet. That is, if the false feet are taken to 
be representative of the balls, there are twelve rows, ten 
of balls and two of feet, only that the two rows of feet do 
not form a double row of themselves but appear to be the 
inferior members of the double row of which the lower 
series of ball appendages is the other. The reason for 
taking the appendages thus in double rows is that there 
is a greater distance from one double row to the next, 
than between the two rows of which it consists. The 
first thoracic segment has two rows transversely, four in 
the first and three in the second on either side. The 
second and third thoracic segments have the two upper 
pairs of rows on either side as in the following segments, 
but on each segment the lower row just above the feet 
has two appendages, one in front of the other. 
The eighth abdominal segment has one appendage in 
this row, but above this it has two transverse rows of two 
on either side ; the ninth segment has three on either side, 
and the tenth carries the two set, which appear to be 
homologous with cerci rather than with any ordinary 
tubercles or processes of lepidopterous larvee. The larva 
appears also to have asucker similar to that of Z. calthella, 
but I did not happen to see it obviously used by the 
living larva, 
I have not been able as yet to get larvee of Panorpa, 
but Brauer’s account of the larva and especially of the 
disposition of the tubercles and of the abdominal legs 
shows that the resemblance between the larvee of Panorpa 
and Hriocephala is very close. 
The idea that the bristles on the last abdominal seg- 
ment are cerci is one requiring fuller investigation ; but 
I fail to imagine what else they can be. It seems 
impossible to correlate them with any of the ordinary 
appendages of lepidopterous larve, since they are the only 
bristle-like appendages and are quite different from the 
ball appendages that probably represent the usual 
tubercles. It is to be remembered that, though I call 
them bristles, they are of very large size (for bristles) 
in comparison with the size of the larva itself, and I do 
not know what their structure is. 
