1890 .] 
93 
[Packard. 
smooth irregular areas occur next behind the spiracles or abdom- 
inal segments to the sixth and eighth ; though there are no traces 
of them on the ninth and tenth segments ; they are not only smaller, 
but are encroached upon by two or three pale flattened minute spin- 
iferous warts, which are wanting on segments 1 and 7. Is it 
probable that these cover the site of rudimentary glands which 
have become so by disuse ; and that the ancestors of these larvae 
w r ere provided with a pair of them to each of the first eight abdom- 
inal segments? This can only be determined b} r a careful study of 
serial sections of the young larvae. Hence on this account and in 
order to arrive at a knowledge of the normal glands it will be very 
desirable to make a thorough microscopical examination by means 
of sections of fresh larvae, for a further study of these glands. 
The question also arises why these glands are situated so very 
near the base of the spine next below the spiracles, and not out in 
the middle of the open space near the spiracles. 
Eversible glands of Pseudohazfs eglanterina. (Boisd.). — Similar 
lateral glands were also detected in eight freshly hatched you ng of 
this species kindly sent me by Dr. Riley, and which were collected 
at Manitou, Colorado. They occupy the same position as in the 
other genera mentioned, and are large and distinct, pale flesh-col- 
ored, with a hollow at the end. The larvae themselves were 5mm. 
in length. 
I have been unable to detect the presence of these glands in 
Platysama cecropia, P. glover ii, Eacles imperialis or Anisota stigma, 
and doubt if they will be found in any other group of Boinbvces 
than the Hemileucini , unless we except Lagoa. They should be 
carefully sought for among the Tineidae. The late Mr. V. T. Cham- 
bers 1 in his valuable “Notes on some Tineid Larvae” states that 
the full-grown larva of Phyllocnistis “before it assumes the second 
form of trophi, has eight pairs of lateral pseudopodia, which are 
membranous, retractile and not armed with either claws or tenta- 
cles ; the first two pairs, placed on the first and second abdominal 
segments, are smaller than the others. Whether these simply repre- 
sent temporary locomotive appendages or not, can perhaps be 
determined by further examination. They are probably not repug - 
natorial glands, as a leaf- miner would have little or no use for 
them. 
Reference has been made to Lagoa. This remarkable larva is 
jPsvche, III, 63, 135, 1880. 
