SUBFAMILY POLLENIINAE 345 
Vieweg u. Sohn, p. 27, 1945; Schiner, Fauna Austriaca, Die 
Fliegen, vol. 1, p. 586, 1862; Mann, Psyche 3:378, 1882; 
Riley, Amer. Nat. 17:83, 1883; Hough, Zool. Bull. 2(6) :283, 
1899; Keilin, Comp. Rend. Soc. Biol. 67(26) :201, 1909; 
Ent. Soc. Wash. Proc. 13(8) :182-184, 1911; Bull. Sei. 
France & Belg. 49:25-106, 1915; Townsend, Indian Mus. 
Ree. 13:201, 1917; Blackman and Stage, N. Y. St. Coll. 
Forestry, Bull. 10:108, 1918; Weiss-and Dickerson, N. Y. 
Ent. Soe. Jour. 29 :144, 1921; Cole and Lovett, Calif. Acad. 
Sei. Proce., ser. 4, 11(15) :308, 1921; Mueller, Arch. f. Natur- 
gesch. 88A (1-3) :67, 1922; Zool.-Bot. Gesell. Wien Verhandl. 
73 :68, 1923; Senior-White, India Dept. Agri. Mem. Ent. 
Ser. 8:50, 1928; Indian Mus. Ree. 27:84, 1925; Blackman and 
Stage, Tech. Publ. 17, N. Y. St. Coll. Forestry, p. 216, 1924; 
Shannon, Ent. Soe. Wash. Proc. 28(6) :136, 1926; Essig, 
Insects of Western North America, p. 587, 1926; Cole, Calif. 
Acad. Sci. Proce. 16(14) :489, 1927; Dennys, Ent. Soe. 
Brit. Col. Proc. 24:22, 1927; Lundbeck, Diptera Danica, vol. 
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am Leonard, Mem. 101, Cornell Univ., p. 828, 1928; De Cour- 
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don Ent. Soc. Trans. 76 :236, 1928; Walton, U. S. Dept. Agr. 
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7:154, 1927; Roberts, Ent. Soc. Amer. Ann. 28:791, 1930; 
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Pollenia obscura Bigot, Ent. Soe. de France, Bull. CLXXXI, 
1887; Soc. Zool. de France, Bull. 597, 1887; Brauer, Akad. 
der Wiss. Wien, Math.-Nat. K]. Sitzber. (1)108:517, 1899. 
New synonymy. 
A black and gray species (Plate 4) with tawny crinkly hair 
on the thorax, and with the abdomen marmorate. 
Male. Head (pl. 7, C) width 10.7; length at antenna 6.6 and 
at vibrissa 6.3; length at the oral margin slightly greater than 
at vibrissa; height 10.7; eye height 8.0; bucca 0.33 eye height, 
and heavily golden pollinose, with abundant short to medium- 
length setae and light yellow hair before the metacephaliec 
suture; frontale nearly obliterated at middle, brown to black 
anteriorly; front at narrowest 0.02 of head width, 0.12 at vertex 
and 0.46 at lunule, with grayish golden to brown pollen; vertex 
subpollinose, whitish; elypeus yellowish silvery; parafaciale with 
