IWRASTTES HIBERNATING IN BROWN-TAIL WEBS. 
263 
Cotnpsilunt conrinnata Meig. Hibernating larva 4 are occasionally 
^und, but apparently do not complete their transformations in the 
spring. 
Mesochorus paUipes Brischke. Occasionally reared as a parasite 
of A pa ntdes lacteicolor. The Ap an teles larva reaches full maturity and 
spins its cocoon, but is overcome before pupating. The Mesochorus 
adult issues from the cocoon a very few days later than would the 
Apanteles had it remained alive. 
Entedon aJMtarsis AshuL An internal parasite within the larvae of 
Pteromalus egregius. 
The appearance of the hibernating Larvae of the Pteromalus is indi- 
1 
Fig. 00. — Port ion of brown-tail moth IMtta, torn open, riwwlug caterpillars 
attacked by larva- of Vt> romnlus cyrci/ius. Knlarged. (Original.) 
Oated fairly well in the accompanying illustration (fig. GO), which 
represents i\ " pocket "of |>arasili/ed <-:i 1 erpillars torn open. Very little 
of interest is associated with the life and feeding habits of these larva?. 
The female pierces the host caterpillar with her ovipositor preliminary 
to the deposition of her egg externally, 
and the caterpillar thus stum: is fre- 
quently rendered quiescent, and may 
even die before the hatching of the para- 
site larva*. 
The hibernating larva of Apanteles is 
so small as to be very difficult of detec- 
tion until after it has resumed activity 
in the spring and increased in size. Its 
exact appearance during the hibernating stage can not be de- 
scribed, because nearly every specimen found has been injured 
more or less in the removal. The accompanying illustration 
(fig. 61) is from a sketch made by Mr. Timberlake of a half-grown 
Larva from life. None of the preserved specimens shows the curious 
projection beneath the anal bladderlike appendage which latter is 
characteristic of the early stage larvae of the subfamily to which 
Apanteles belongs. The head and mouthparts are strikingly dis- 
Fig. 61.— A pantdts lacteicolor: Imma 
ture larva from hibernating caterpillar 
of ilif DXOwn-taO moth. Much en- 
larged. (Original.) 
