ART. 2. ICHNEUMON-FLY GENUS METEOKUS MUESEBECK. 29 



Stephens was recorded by Riley and Howard " as a host; and 

 Strickland " discussed the parasitism of Porosagrotis orthogonia 

 Morrison by this species. But these records are incorrect; M, vul- 

 garis was evidently the species reared in these two cases. 



While I have not seen the type of noctivagus, I have had no hesi- 

 tation in placing it in the synonymy of dimidiatus. The original 

 description, and the excellent unpublished redescription prepared by 

 Gahan, on a study of the type, conclusively show that noctivagus 

 is dimidiatus. There is a considerable amount of material of this 

 species in the National Museum, including the specimens reared from 

 D. funeralis by Strauss. Many additional specimens, in the collec- 

 tions of Doctor Brues, Mr. Banks, the Boston Society of Natural 

 History, and Cornell Universitj^, have been examined. 



21. METEORUS BAKERI Cook and Davis. 



Mctconts bakeri Cook and Davis, Bull. 73, Mich. Agr. Exp. Sta., 1891, p. 9. 



Type. — Apparently lost. 



Distino-uished from d/iinidiatus as noted in the discussion under that 

 species. The antennae normally have 29 to 31 segments; the ovipos- 

 itor sheaths are about half as long as the abdomen; dorsum of thorax 

 more or less marked with black, the venter always testaceous ; 

 abdomen mostly black or blackish, except second and third tergites, 

 which are ferruginous. 



Distribution. — Michigan, West Virginia, Kentucky, South Dakota, 

 New York, Massachusetts, Rhode Island, New Hampshire. 



Hosts. — Hyphantria cunea Drury; H. textor Harris. 



Although the type seems to have been lost, the good original 

 description, together with the figure and host record accompanying 

 it, leaves no doubt as to the identity of the species. In the National 

 Museum there are three specimens reared from H. cunea at French 

 Creek, West Virginia (F. E. Brooks) ; two reared at Melrose High- 

 lands, Massachusetts, from Hyphantria, probably textor; one bred 

 from "fall webworm" at Lexington, Kentucky; another reared 

 from the same host at Benton Harbor, Michigan (E. H. vSiegler) ; and 

 collected specimens from Agricultural College, Michigan; Oswego, 

 New York; and South Dakota. At the gypsy-moth parasite labora- 

 tory, Melrose Highlands, Massachusetts, there are many specimens 

 reared from the fall webworm collected at Reading Highlands and 

 Beverly, Massachusetts; Putnam, Connecticut; and Westerly 

 and Coventry, Rhode Island. 



"Insect Lifo, vol. 3, 1890, p. 58. '2Canad. Entom., vol. 53, 1021, p. 99. 



