39 



Pig. 12. — Exorista pyste — much enlarged (original). 



(fig. 12). It bred from pupa^ taken at Chino and Oxnard, Cal. This 

 parasite was also reared from the pupse of an unidentified tortricid 

 found feeding on the leaves of sugar beet at the same places. Three 

 species of Hymenop- 

 terous parasites were 

 reared, but with the 

 exception of the one 

 noted below it was im- 

 possible to tell Avhether 

 they were bred from 

 larvae or pupse. They 

 Avere identified by Dr. 

 W. H. Ashmead, of 

 the United States Na- 

 tional Museum, as 

 Cheloniis iindescefis 

 Cr., Spilocholcis tor- 

 vina Cr., and Hahro- 

 hracon hehetor Say. 



Specimens of Che- 

 lonus iridescens ( fig. 

 13), issued from pupse 



of the crown borer in early October. This parasite is represented in 

 the National Museum collections by specimens from Agricultural Col- 

 lege, Mich. ; Washington, D. C. ; South Dakota; Colorado; Wyoming; 



Corvallis, Oreg. ; Gar- 

 land, Utah ; Kukak 

 Bay, Alaska; East on, 

 Wash., and San Diego, 

 Cal. The last of these 

 specimens (bearing 

 the U. S. Dept. Agr. 

 No. 79TP°) was bred 

 from a phyticid larva 

 (or from the pupa) 

 found feeding in the 

 seed pods of Ayhyllon 

 tuheroHiim. This spe- 

 cies is entirely black 

 except the legs, Avhich 

 are marked Avith pale 

 yelloAv; about 4 mm. 

 in length ; very rugosely punctured on thorax with longitudinal striae 

 on abdomen. 



But one specimen of Tlcibrohracon hehetor Say Avas reared from the 



Fig. 13. — Chelonus iridescens — greatly enlarged (original). 



