ZENILLIA AND ALLIED GENERA — SELLERS 91 



segment of antenna five times length of second ; arista hardly thickened 

 on basal one-fourth, penultimate segment short. 



Thorax marked with four mesonotal vittae; scutellum black; hind 

 tibia ciliate. 



Abdomen shining black, narrow bases of segments 2 and 3 white- 

 pollinose, abdominal hairs rather long and suberect. 



Length 7 mm. 



Type locality. — Tifton, Ga. 



Type.— Male, U.S.N.M. No. 3598. 



Host. — Unknown. 



Remarks. — Redescribed from type specimen. 



14. APLOMYA HELVINA (Coquillett), new combination 



Exorista hclvina Coquillett, U. S. Dept. Agr., Div. Ent. Tech. Bull. 7, p. 96, 1S97 — 

 Slosson, Ent. News, vol. 9, p, 252, 1898.— Smith, Catalogue of New Jersey 

 insects, p. 672, 1899 ; p. 780, 1909.— Tothill, Can. Ent. vol. 45, p. 71, 1913. 



ZenilUa helv'ma (Coquillett) Aldrich and Webber, Proc. U. S. Nat. Mus., vol. 63, 

 art. 17, pp. 15-16, 1924.— Johnson, List of New England Diptera, p. 196, 

 1925 ; Biological survey of the Mount Desert region, The insect fauna, pt. 1, 

 p. 201, 1927.— West, Cornell Univ. Agr. Exp. Stat. Mem. 101, p. 814, 1928.— 

 Schaefneb and Griswold, U. S. Dept. Agr. Misc. Publ. 188, p. 112, 1934.— 

 Procter, Biological survey of the Mount Desert region, The insect fauna, 

 pt. 6, p. 374, 1938. 



Huebneria helvina (Coquillett) Townsend, Manual of myiology, pt. 4, p. 212, 1936. 



Head with front of male at narrowest 0.27 to 0.29 and in female 0.30 

 to 0.33 head width ; frontal row of six to eight bristles, extending from 

 on a level with base of third antennal segment to two reclinate prever- 

 ticals ; facial ridge bristly on lowest one-fifth ; gena one-sixth to one- 

 fifth eye height; face and gena light-gray-silver pollinose; antenna 

 with third segment black, first and second segments varying from 

 rufous to black but usually rufous, third segment in male four and 

 one-half and in female three and one-half times the second; arista 

 thickened on basal one-fourth, penultimate segment short. 



Thorax black, dorsum densely covered with golden pollen, sides and 

 venter gray pollinose ; five mesonotal vittae ; scutellum black covered 

 with dense golden pollen; mid tibia with one or two, usually two, 

 median anterolateral bristles, one long bristle in middle and a shorter 

 one above it which was consistently longer in female than in male; 

 hind tibia unevenly ciliate; third vein with three or four bristles at 

 base; squamae white. 



Abdomen black, dorsum entirely covered with dense golden pollen, 

 venter silvery pollinose, sometimes with a slight brassy tinge; first 

 and second segments with a pair and third with a row of marginal 

 macrochaetae ; fourth segment tipped with marginal and submarginal 

 bristles more or less irregularly placed. 



Length 6 to 9 mm. 



