266 U. S. NATIONAL MUSEUM BULLETIN 216 



at Oneonta, N. Y.; August 25 at Crabtree Meadows, 3,600 ft., Yancey 

 Co., N. C; August 27 at White Heath, 111.; and "Sept." in Itasca 

 State Park, Minn. 



Reared specimens are as follows: 2d 71 , from Acleris variana, Lisle, 

 Ont., July 25 and 26, 1938; d\ from Argyrotaenid on Abies, emerged 

 May 1, 1951; and 9, from tortricid on Abies, Starks, Maine, collected 

 July 15, 1946, emerged Aug. 22, 1946. 



We have collected the subspecies only in the undergrowth of moist 

 woods. When captured, specimens give off a strong odor like species 

 of Coccygomimus. 



This subspecies is in the Alleghenian and Carolinian faunas, in 

 moist woods. Adults occur through the summer. 



55. Exochus mandibularis Cushman 



Figure 196,i 



Exochus mandibularis Cushman, 1922. Proc. U. S. Nat. Mus., vol. 61, art. 8, 

 p. 13; "c?"=?. Type: ?, Alpine Region of Mount Washington, N. H. 

 (Washington). 



Male: Unknown. 



Female: Front wing 3.7 to 3.9 mm. long; costula incomplete; 

 second lateral area of propodeum about 1.55 as long as wide; second 

 tergite about 0.9 as long as wide, with about 100 to 150 hairs. 



Black. Face, side of frons (narrowed above), large spot at top of 

 eye, clypeus, cheek, lower 0.3 of temple, mouth parts, under side of 

 scape and pedicel, hind corner of pronotum, tegula, spot on pre- 

 pectus, apex and side of scutellum, front and middle legs, apical 

 0.2 and apical part of upper edge of hind femur, hind tibia except at 

 base and apex, and hind tarsus except at apex, whitish or ivory; disc 

 and basal part of scutellum black to ferruginous; postscutellum 

 ferruginous to ivory; mesosterum sometimes ferruginous ; metapleurum 

 ferruginous, paler posteriorly; basal and apical 0.12 of hind tibia 

 fuscous; apical half of last segment of hind tarsus brown; hind leg 

 fulvous except as described otherwise. 



Specimens : 49, Isle Royale, Mich., Aug. 3 to 7, 1936, C. W. Sabrosky 

 (Washington and Townes). 9 (type). Alpine Region of Mount 

 Washington, N. H., A. T. Slosson (Washington). 9, Randolph, N. H., 

 July 4, 1946, J. Peck and M. Townes (Townes). 



XII. SPECIES INQUIRENDA 



56. Exochus albiceps Walsh 



Exochus albiceps Walsh, 1873, Trans. Acad. Sci. St. Louis, vol. 3, p. 96; cf. Type: 

 d\ ? Illinois (destroyed in Chicago fire of 1871). 



This species is known only from its original description, which was 

 drawn from a very small species with areolated propodeum, of the 



