No. 64] DIPTERA OF CONNECTICUT : TAXONOMY 217 



Dr. Townes has recently reported the caj^ture at Ithaca, N. Y., May 

 31, 1936, of a mating pair, the male being frontalis, the female fumi- 

 pennis. The adults frequent open mesophytic or mixed woodlands. 

 They are highly polished, black and yellow to red. superficially re- 

 sembling ichneumonid Hymenoptera more than they do other crane- 

 flies. The larvae live in the relatively sound wood of prostrate hard- 

 wood trees. 



Key to Species 



1. Wings smoky black; body-coloration black, male with feet and abdomen 



black, female with feet and base of abdomen reddish yellow fumipennis 



' Wings not black 2 



2. Wings strongly tinted with topazine yellow, the stigma dark brown, in 



cases with the wing-tip infumed; body-coloration varying from black to 



yellow ; legs reddish yellow topazina 



Wings hyaline, stigma brown ; body-coloration ranging from black to yellow 



frontalis 



Tanyptera frontalis (O. S.) (Fig. 25, A). 



1864. Ctenophom frontalis Osten Sacken; Proc. Ent. Soc. Phila- 

 delphia. 3:48-49. 



Figs.— Needham, 23rd Rept. N. Y. St. Ent. for 1907, pi. 14, fig. 3 (ven.) ; 

 1908. Alexander, Cfls. N. Y.', 1, pi. 43, fig. 191 (wing) ; 1919. Dickinson, Cfls. 

 Wise, p. 213, fig. 115 (wing) ; 1932. 



Coloration ferruginous to black. Wings hyaline; stigma dark 

 brown. 5 . L. 12 - 16 ram. ; w. 10 - 12 mm. 



(May, June) One., N. S., Me., N. H., Vt., Mass., N. Y., N. J., westw. to 111. and 

 Wise, sonthw. to Aid. 



Connecticut.— Tyler Lake, June 13. 1931 (C. P.A.). 



T. fumipennis (O. S.) 



1864. Ctenophora fumipennis Osten Sacken; Proc. Ent. Soc. Phila- 

 delphia, 3 : 47. 



Black; wings strongly suffused with blackish; in female, legs 

 and base of abdomen reddish yellow, i . L. 13-15 mm. ; w. 12 - 14 

 mm. ?. L. 20-22 mm.; w. 13-15 mm. 



(Late May-early June) Que., N. H., Vt., Mass., N. Y., N. J., westw. to Minn., 

 Wise, and 111., southw. to Va. and N. C. 



Connecticut.— Hamden, May 25 (A. B. C.) ; June 4, 1926 (P. G.) ; Mt. Carmel. 

 June 10, 1916 (Q.S.L.) ; Norfolk, June 5, 1919 (M.P.Z.) ; S. Meriden, May 28 

 (H. L. J.); Stamford, June 5, 1930 (B. T. R.L.); W. Granby, June 8, 1929 

 (C.P.A.). 



T. topazina (O. S.) 



1864. Ctenophora topazina Osten Sacken; Proc. Ent. Soc. Phda- 

 delphia, 3:47-48. 



Fig.— Dickinson, Cfls. Wise, p. 213, fig. 116 (wing) ; 1932. 



Coloration ferruginous to black; abdomen pale, with a dark 

 dorso-median stripe, in cases abdomen entirely black. Wings tinted 



