30 



U, S. NATIONAL MUSEUM BULLETIN 216 



PART 3 



Dreisbach (Dreisbach). 29, Muskegon Co., Mich., Aug. 2, 1944, 

 R. R. Dreisbach (Dreisbach). cf, Oakland Co., Mich., July 19, 

 1946, R. R. Dreisbach (Townes). 9, Roscommon Co., Mich., 

 Oct. 10, 1945, R. R. Dreisbach (Dreisbach). 9, Ithaca, N.Y., 

 Aug. 27, 1896 (Ithaca). 9, Mount Whiteface, 4,000 ft., N.Y., 

 Aug. 11, 1950, H. Dietrich (Ithaca). 9, Ringwood, near Ithaca, 

 N.Y., Oct. 2, 1938 (Townes). 9, "Cedar Springs," Ohio, Oct. 8, 

 1935, J. N. KnuU (Columbus). 9, RockcUffe, Ont., Sept. 18, 1940, 

 G. S. Walley (Ottawa). 6", Ayhner, Que., July 30, 1926 (Ottawa). 

 29, Queen's Park, Aylmer, Que., Aug. 27, 1924 and Sept. 3, 1926, 

 C. B. Hutchings and A. R. Graham (Ottawa). 9, Alton, R. I., 

 Sept. 18, 1937, H. Townes (Townes). 



This subspecies occurs in the AUeghanian fauna. It is adult from 

 late summer to mid-fall. 



4. Baryceros halli, new species 



Figure 330,e 



Male: Front wing 8.5 to 9 mm. long. Structurally similar to 

 B. audax except that punctm-es are coarser and stronger and that 

 the wrinkling on the thorax is much weaker. Punctures on meso- 

 pleurum and metapleurum separated by about 0.5 their diameter. 



Black. Head and body with ivory markings as in figure 330, e; 

 mesoscutum with two whitish stripes; small oval dorsobasal spot on 

 hind coxa and basal spot or areas on front and middle coxae, ivory; 

 palpi light brown; coxae fulvous except for ivory markings, the 

 front coxa fuscous basally; trochanters, femora, and front and middle 

 tibiae fulvous; front and middle tarsi pale fulvous, the last segment 

 of front tarsus and last three segments of middle tarsus, brown; 

 basal 0.1 of hind tibia fulvous, the next 0.2 fuscofulvous, the apical 



Figures 6, 7. — Localities: 6 (left), Baryceros halli; 7 (right), B. texanus. 



