6 



Douglass states that the parasite is very sluggish and probably will 

 not be of much importance. 



Doryphorophaga doryphorae, a tachinid parasite of the Colorado 

 potato beetle, was reared from an adult bean beetle by H. G. Walker 

 at Columbus, Ohio, in 1930. 



Paradexodes epilachnae, a tachinid parasite of the larval and pupal 

 stages of the bean beetle in Mexico, was liberated in several parts 

 of the United States from 1931 to 1935, inclusive. The parasite 

 apparently has not become established. 



In several localities adult bean beetles have been observed bearing 

 tachinid eggs on their elytra. Douglass observed two kinds of 

 tachinid eggs in New Mexico; Chittenden (3) reported adult bean 

 beetles with tachinid eggs attached from Rocky Ford, Colo., and 

 the present authors have made the same observation in Ohio and 

 Alabama. 



A tachinid, Hyalormyodes triangulifera, was reared from a bean 

 beetle larva collected at Cuernavaca, Morelos, Mexico, in the summer 

 of 1930. The junior author also reared this parasite from adults of 

 the predacious coccinellid Ceratomegilla fuscilabris at Geneva, N. Y., 

 in the summer of 1928. 



A sarcophagid, Helicobia helicis, was reared on two occasions from 

 bean beetle larvae at Birmingham, Ala. (11, 12). 



Another sarcophagid, Sarcophaga latisterna, was reared from an 

 adult bean beetle at Columbus, Ohio, by H. G. Walker in the summer 

 of 1930. 



Sarcophaga rheinhardi was reared from a larva of the bean beetle 

 at Cuernavaca, Morelos, Mexico, by the junior author in 1930. This 

 species also occurs in Texas and Utah. 



A small phorid, Megaselia sp., has been reared from bean beetle 

 larvae and pupae collected from the field at Birmingham, Ala., and 

 Norfolk, Va., by L. W. Brannon, and at Columbus, Ohio. Several 

 phorid larvae develop in a single host. Although most of the 

 developmental stage of the fly has been observed to take place in 

 the dead host it is believed that the eggs are deposited on the host 

 while still alive. 



LEPIDOPTERA 



Three species of Noctuiclae, HeliotMs obsoleta, Laphygma fru- 

 giperda, and Prodenia ornithogalli, were observed feeding on pupae 

 of the bean beetle in the field at Birmingham, Ala. Feeding experi- 

 ments conducted in the insectary showed that these lepidopterous 

 larvae were able to complete their development on a diet restricted 

 to bean beetle larvae and pupae (10, 12). The corn earworm, 

 HeliotMs obsoleta (fig. 1, C), has been observed feeding on pupae 

 of the bean beetle in Ohio also. 



COLEOPTERA 



Chittenden (3) states that the coccinellids Hippodamia convergent, 

 H. 5-signata, and Coccinella transverso guttata are, next to cold, the 

 most efficient factors known in the natural control of the bean beetle 

 in Colorado and neighboring States. In the East and South Cerato- 

 megilla fmcila&ris (Megilla maculata) is the most voracious and usu- 

 ally the most numerous coccinellid feeding on the bean beetle. Of 200 



