150 THE CANADIAN ENTOMOLOGIST 



brown ; segments 1 and 2 of abdomen have \cry short stria^ at base. 

 The club is stouter than with ovivorus. 



3. Phanuriis ovivorus Ashmead. 



The club is slenderer than in ihi' preceding, the tibia' (hirk, 

 the thorax above showing faint reticulation cephalad, but mostly 

 glabrous. The first tAvo segments of the abdomen do not lia\e 

 striic at base, or else these are extremeh' minute and short. In 

 flavipes the vertex and scutum is uniformK' lineK' reticulate. The 

 species ovivorus is ver>- close to opacus, if not identical. 



4. Phanurus eniersoni, new species. 



Female — Length 0.1)0 nun. Black, the wings subh\aline. the 

 venation pale dusky, the tarsi yellow. DilTers from opacus Howard 

 in that the male is varicoloured here. Differs from female opacus, 

 floridanus and ovivorus in that the \ertex and scutum arc densely 

 reticulated. DilTers from tabanivorus in that the abdomen is only 

 somewhat longer than the rest of the bod\', its third segment is 

 not a fourth the length of the third, the thorax aboxe is reticulated, 

 and the male has the entire thorax honc\' yellow, also the antennai 

 (besides the legs and head as in tabanivorus). Closest (female) to 

 ovivorus, which it resembles. Stigmal \ein neari\- twice longer 

 than the marginal, about half the length of the postmarginal. 

 Funicle 1 a half longer than wide, two-thirds the length of the 

 pedicel, 2 a little shorter than 1, 3 still shorter, 4 globular, smallest; 

 5 cup-shaped, 6 the same, larger, wider than long; 7 and 8 sub- 

 quadrate, 9 OAate, longer than wide. Sliort, distinct stria:^ at base 

 of segment 2 of the abdomen. 



In the male, funicles 1-3 are somewhat longer than in the 

 female, while 4-9 are moniliform, wider than long, small; the clul) 

 joint is ovate and as long as funicle 1 and stouter. 



Described from a large number of both sexes reared from 

 tabanid eggs at Dallas, Texas (F. C. Bishop). 



rv^^5— Catalogue No. 19664, U.S.N.M., Id", 8 9 's on two 

 tags and a slide bearing 1 cf" , 4 9 's. 



Types of opacus, ovivorus, floridanus and flavipes examined. 



