56 
the Tetrastichus johnsom had issued, thus proving the host of 
this parasite; the remaining cell contained a cocoon of the 
Ichneumonid with a dried-up larva. 
It was not possible to determine the host of this Ichneumonid. 
But it must have been either the Ceropales fraterna, or if this 
wasp was a parasite on some other wasp (possibly an A genia) 
that may have built the nest, the _Ichneumonid might have been 
a parasite on the Agenia. 
In similar blocks of wood were found many larvae of 
two or three Longicorn beetles, and possibly of Buprestids as 
well. None were collected, nor were any adults found, or 
remains of any adult beetles that might be a help to the identi- 
fication of the larvae. Beneath the bark where beetle larvae 
had been working, three cocoons were collected, from which 
one Braconid* issued. It probably was a parasite on some one 
ef the beetle larvae. 

{ Atanycolus sp., as determined later by S. A. Rohwer. 
