SERPHOID AND CHALCIDOID PARASITES OF THE HESSIAN ELY 71 



This species was originally described by Kurdjumov in 1923 from 

 specimens reared from the hessian fly in the governments of Kiev 

 and Poltava, Russia. The only other reference to it in literature 

 seems to be that by Znamenski, who ranked it fourth in abundance 

 among hessian-fly parasites in the Ukraine in 1923. 



Its known distribution is confined to the above-mentioned localities 

 in Russia. 



Kurdjumov states that the adults emerge from puparia of the host. 

 Otherwise its life history is unknown. 



Figure 17. — Arthrolytus maculipennis (Walker) : A, Adult female ; B, antenna of female 

 C, antenna of male. A, x 28. 



ARTHROLYTUS MACULIPENNIS (Walker) 



(Fig. 17) 



Pteromalus maculipennis Walker, Ent. Mag. 3 : 191, 1836 ; Dalla Torre, Cata- 

 logus hymenopteroruin . . ., v. 5, p. 134, 155, 1898 ; Schmiedeknecht, Hymenop- 

 tera, Fam. Chalciclidae, in Wytsman, Genera insectorum, facs. 97, p. 347, 1909. 



Pteromalus {Arthrolytus) punctatus Thomson, Scandinaviens Hymenoptera, 

 v. 5, p. 158, 1878. 



Arthrolytus punctatus Dalla Torre, Catalogus hymenopterorum . . ., v. 5, 

 p. 155, 1898; Schmiedeknecht, Hymenoptera, Fam. Chalcididae, in Wytsman, 

 Genera insectorum, fasc. 97, p. 359. 1909 ; Girault, Canad. Ent. 43 : 352, 1911. 



Arthrolysis maculipennis Masi, Bui. Soc. Ent. Ital. 57:32, 1925. 



