SERPHOID AND CHALCIDOID PAEASITES OF THE HESSIAN FLY 75 



but with the specific name spelled laniger. One female specimen 

 is in the National Museum collection labeled " Homoporus luniger " 

 by Ashmead and bearing the further label " France ". which estab- 

 lishes it as part of the Marchal material identified by Ashmead. 

 Another female specimen is labeled " Homoporus laniger;'' This 

 specimen was also a part of the original material involved in the 

 Ashmead and Marchal records, having been returned by Ashmead 

 to Marchal at the time of the identification but again sent to the 

 Museum by Marchal through L. O. Howard in 1921. Both of these 

 specimens are Arthrolytus macwlipennis (Walker), not H. luniger 

 (Nees).- Presumably, therefore, the record of H. luniger by Ash- 

 mead and Marchal refers instead to A. maculipennis, since no speci- 

 mens of the true H. luniger have been found either in the material 

 retained by Ashmead or among the specimens sent back to Marchal 

 and subsequently returned by him to the Museum. 



The Girault reference is merely a quotation of the Walker and 

 Thomson descriptions of the genus and species together with a 

 redescription of the genus. 



LIFE HISTOEY AND HOSTS 



The only host records for this species seem to be those by Marchal 

 from Phytophaga destructor and Mayetiola avenae, the first men- 

 tioned under the name of Holcaeus cecidomyiae and the second as 

 Homoporus luniger. In view of the apparent abundance and wide 

 distribution of the species and the fact that it has been recorded but 

 once from each of these common insect pests, it seems hardly likely 

 that either of them is the normal host of the species. 



Nothing appears to be known of its biology except that the adult 

 emerges from the puparium of its host. 



DISTRIBUTION 



Arthrolytus maculipennis does not occur in North America, so far 

 as is known at present. Apparently it is widely distributed in 

 Europe. Walker recorded it from England, Thomson from Lapland 

 to southern Sweden, Masi from northern Italy and France, and 

 Ashmead and Marchal from the Vendee in France. Specimens in 

 the collection determined by Schmiedeknecht are from Blankenburg, 

 Thuringia, and one specimen identified by Ruschka is labeled 

 " Siegenfeld, Lower Austria." The specimen determined by Foers- 

 ter is without locality label. 



IMPORTANCE 



This species is apparently of very little importance as a parasite of 

 the hessian fly. 



EUPTEROMALUS FULVIPES (Forbes) 



(Fig. 18) 



Ceraphron destructor Say (in part), Jour. Acad. Nat. Sci. Phila. (1) 1: 63, 

 1817. 



Eurytoma destructor Herrick (in part), Amer. Jour. Sci. Arts 41: 153-158, 

 1841. 



Pteromalus f fuluipes Forbes, 111. State Ent. Rpt. 14: 47, 1885; Packard 

 Amer. Nat. 19: 1105, 1885. 



