No. 64] DIPTERA OF COXXECTICUT : TAXONOMY 355 



Subgenus Eudicranota Alex. 



11)34. Eudicranota Alexander; in Curraii, Keys to the Families and 

 Genera of North American Diptera, [). 40. 



Distinguished from Dicranota^ s.s., b}^ the closed cell 1st M-z Jiut^l 

 15-segmented antennae. Within the liinits of this grou[) is to be found 

 almost the whole range of i)<)sition of vein R^ to be found in the tribe, 

 this being retained in its primitive position on the ])()sterior fork by 

 Hotahills^ while being extensively ca].)tured by the up[)er fork, forming 

 a long element i?2+3+4, in pallida. 



TyiJe of subgenus. — Dicranota notahllis Alexander (Eastern 

 Nearctic ) . 



Both known species occur within our limits or are regional. The 

 only other member of the genus with cell 1st M^ closed, is A?nuloj)ina, 

 which lacks the supernumerary crossvein m cell /i*i and has cell J/i 

 long-petiolate. Eudicranota has the cell very short-petiolate to sessile. 



Kcv to Sffccies 



1. A short fork of Ri*-.. cell A% thus being short-petiolate, Rj sessile (V\g. 



40 £\ notabilis 



A^ captured by R^^s, forming a long fusion of A2-.'U4, cell R-., thus being long- 

 petiolate, R, sessile (Fig. 23, C) pallida 



Dicranota {Eudicranota) notabilis Alex. (Fig. 40, E). 

 1929. JJicranota notahilis Alexander; Can. Ent., 01:18. 



General coloration pale yellow. Halteres and legs yellow: tips 

 of femora and tibiae weakly' infumed. ^^'ings pale yellow, the base 

 and costal region a trifle darkened; stigmal area and veins of cord a 

 little suffused; cell My broadly sessile. 5. L. about 10 mm.: \v. 9.5 

 mm. 



(June) Tenn. 



D. {Eudicranota) pallida Alex. (Fig. 23, C). 



1914. Dicranota, pallida Alexander; Proc. Acad. Nat. Sci. Philadel- 

 phia, 19l4:599-()00. 



Figs.— Alexander, Ibid., 1914, pi. 27, f^g. 31 (wing). Alexander, Cfls. N. Y., 

 1. pi. 41, fig. 167 (ven.) : 1919. 



General coloration pale yellow, scutal lobes, base of scutellum and 

 postnotum more infuscated; pleura yelloAV. teinora yellow, a little 

 darkened at tips. Winir« hvaline, iridescent, costal margin a trifle 

 infumed, especiallv basally; lis long, angulated and spurred at origin; 

 cell i¥i nearly sessile (Fig. 23, C). ?. L. S mm.: w. 8 mm. 



(July) Me. (Mt. Desert), N. H. (White Mts.) 



Subgenus Paradicranota Alex. 



1934. Paradicranota Alexander; in Curran, Keys to the Families and 

 Genera of North American Diptera, p. 40. 



Distinguished from Dictranota, s.s., by the loss of cell J/i of wings. 



