FLIES OF THE GENUS OGCODES — SCHLINGER 287 



Ogcodes (Ogcodes) shewelli Sabrosky 



Plate figures 62, 97 



Ogcodes sheiveili Sabrosky, Amer. Mid. Nat., vol. 39, p. 422, pi. 1, fig. 6, pi 2 

 fig. 20, 1948. 



Diagnosis: Species of group iv. Male abdomen patterned, with- 

 out tergal white fasciae; tergites ii-iv yellow with only small brown 

 median triangular spots; venter entirely pale j^ellow except for faint 

 infuscation on sternite i; venation about as in plate 4, figure 21; 

 male genitalia yellow; aedeagus as in plate 10, figure 62, ejaculatory 

 apodeme small as in plate 12, figure 97. 



Type: Holotype d", Niagara Glen, Ontario, Canada, July 27, 1925 

 (G. S. Walley, CNM). 



New distribution record: 



New York: 1 cf , Cold Spring Harbor, July 27, 1927 (A. L. Melander, ALM). 



Discussion: This colorful species has close affinities with both 

 floridensis and nitens, and actually appears to be closer to the latter 

 species in most respects, even though floridensis and shewelli occur 

 in North America while nitens is restricted to New Zealand. 



Because this species is so httle known, it seems worth while noting 

 that both of the known specimens were collected on the same day, 

 even though two years apart and at separate localities. It may be 

 that the adults of this species have a very short spatial existence, a 

 fact which could account for its rareness in collections. The more 

 plausible reason, however, seems to be that shewelli (as well as all 

 known members of the colei group in North America) has difficulty 

 in competing Avith such widespread and adaptive species as adaptatus, 

 eugonatus, and pallidijjennis. 



Ogcodes (Ogcodes) niger Cole 



Ogcodes niger Cole, Trans. Amer. Ent. Soc, vol. 45, pp. 65-66, pi. 15, fig. 41, 1919; 

 Psyche, vol. 30, p. 48, 1923.— Sabrosky, Amer. Mid. Nat., vol. 31, p. 389, 

 1944; Amer. Mid. Nat., vol. 39, p. 427, 1948. 



Diagnosis: Species of group iv (?). Female body shining black, 

 antenna whitish; femora darkened, knees, tibiae and tarsi whitish; 

 vein Ml present but apparently faint, r-m crossvein absent, m-cu 

 crossvein present (extracted from Cole, 1919). 



Type: Holotype 9, Stockton, Utah, July 11, 1916 (T. Spaulding, 

 MCZ). 



Discussion: I have not seen this species, and apparently there are 

 no specimens known except the holotype female. Sabrosky (1948, 

 p. 427) examined the type and concluded that the species was un- 

 recognizable to him. I have tentatively placed it in the colei group on 

 the basis of vein Mj being present, r-m crossvein being absent, and 



