10 



MISCP:LLANE0US results of work of bureau IX. 



Siinunar!/ of i-esiiUs ohtained by rearing parasUcs from eggs of I'liifatonia 

 ligata collected at Barstow, Tex., in, 1905. 



a Representing two batches of 13 and 22 eggs, respectively. Presumably destroyed by ants, the 

 broken eggshells remaining. 



Shrinking of the eggs, indicating infertility, occurred in no case 

 among the eggs inchided above. From the fact that adult para- 

 sites frequently fail to emerge from the vgg of the host even after 



Fi(i.2. — Tilrnomttsaslnnradi, tin important egg parasite of Peiilaloiiiii lii/atn: Adult femaleand antenna 

 of male. Highly magnified (original). 



breaking through the shell — and as far as observed it seldom occurs 

 in nature that eggs of the conchnela fail to hatch when not destroved 

 by outside agencies — -it may be concluded that practically all the 

 eggs appearing intact which failed to hatch were destroyed by the 

 parasites. In support of this supposition 10 eggs which neither 

 hatched nor from which live parasites emerged, selected at random 

 from the 19 batches above mentioned, were opened and each Avas 

 found to contain a dead adult parasite. The specimens bred from 

 the eggs of P. ligata and also of P. myi from Barstow were all of the 

 same species and identified by Dr. William H. Ashmead, of the U. S. 

 National Museum, as a new species of the genus Telenomus (fig. 2). 

 The writer will describe the species under the name Telenomus 

 ashmeadi. An egg batch of the conchnela containing hatched and 

 unhatched eggs is shown in Plate I, figure 1, and a parasitized ^gg 

 batch in Plate I, figure 2. 



