Psyche 
[June 
1 1 6 
isidae). The specimen was immature, but was considered to prob- 
ably be X. lanio. 
There have been few reports of parasitism on Pison. In addition 
to the eulophid parasites Melittobia chalybii reared from a P. koreense 
cocoon (see above), Micheli (1933) found dipterous puparia in a 
cell of P. atrum J and Iwata (1964) reports rearing Chrysis sp. 
from the cells of P. argentatum and Melittobia sp. from Pison sp. 
( near suspiciosum ) . 
Acknowledgements 
I am indebted to Dr. Ellis G. MacLeod for his help and en- 
couragement in preparing this paper. I am also grateful to Dr. J. 
A. Beatty for determining the spiders used as prey by the females 
of P. koreense , to Dr. B. D. Burks for determining the eulophid 
parasites, and to Dr. Howard E. Evans for reviewing the manuscript. 
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