ZENILLIA AND ALLIED GENERA — SELLERS 43 



prevesical bristles, abdomen with long fine hairs on discal portions of 

 second and third segments, inner ventral bristle on midtibia small, weak 

 or lacking; female with one pair of marginal macrochaetae on second 

 abdominal segment, inner ventral bristle on midtibia about same size as 

 the lower of the two posterolateral bristles; pollen of thorax and abdomen 



with a bluish tinge 14. olenesis, new species (p. 67) 



Abdomen black; male with two reclinate prevertical bristles; female with 

 two pairs of marginal macrochaetae on second segment of abdomen; male 

 and female with one strong inner ventral bristle on midtibia 



in. yalensis, new species (p. 60) 



1. CARCELIA FORMOSA (Aldrich and Webber), new combination 



E.vorixi'a eudryae of Coquiujett (nee Townsend) (partim), U. S. Dept. Agr., 



Div. Ent., Tech. Bull. 7, pp. 13-14, 1897. 

 Oxcxorista eudryae (Townsend), 1012 nee 1892, Proc. Ent. Soc. Washington, 



vol. 14, p. 165. (New synonymy.) 

 Oxen m, ta til mpsoni Townsend (partim), Proc. Biol. Soc. Washington, vol. 28, 



p. ill, 1015 ; Manual of myiology, pt. 4, p. 211, 1936. (New synonymy.) 

 Zenillia formosa Axdeich and Webbeb, Proc. U. S. Nat. Mus., vol. 63, art. 17, 



pp. 23-24, 1924.— Johnson, List of New England Dirjtera, p. 196, 1925 — 



West, Cornell Univ. Agr. Exp. Stat. Mem. 101, p. 814, 1928— Schaffner and 



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

 Oxexorista formosa (Aldrich and Webber) Townsend, Manual of myiology, pt. 4, 



p. 212, 1936. 

 The female paratype of formosa bearing the notation TD395 clears 

 up Townsend's concept of Oxexorista thompsoni even if the name 

 cannot be utilized. Although Townsend visualized the specimen 

 TD395 when he proposed the new species thompsoni, he selected as 

 the type a specimen that has proved to be Sisyropa eudryae Townsend. 

 This is discussed in more detail under the genus Sisyropa. 



Head with front of male at narrowest 0.22 to 0=23 (in six speci- 

 mens) and in female 0.25 to 0.28 (in six specimens) of head width; 

 frontal row of seven to eight bristles in male and five to seven in 

 female, extending from base of third antennal segment to the two 

 reclinate upper frontals (preverticals) ; facial ridge bristly on lowest 

 one-fifth; gena one-fifteenth or less eye height; frontal orbit, face, 

 cheek, and posterior orbit silvery-white pollinose; antenna black, 

 first and second segments usually faintly reddish in female, third 

 segment of male nearly four times and in female at least three times 

 length of second; arista thickened on basal one-fourth to one-third, 

 gradually tapering to apex, penultimate segment short; palpus yellow, 

 flat, not swollen, clothed with fine black hairs some of which are 

 present on apical portion. 



Thorax black covered with silvery-gray pollen, marked by five black 

 mesonotal vittae; four postsutural dorsocentral macrochaetae; scutel- 

 lum yellowish, well covered with gray pollen, three pairs of marginal 

 scutellars and one strong decussate apical pair turned backward, disk 



