No. 64] DIPTRRA or CONNECTICUT: TAXONOMY 419 



H. {Erlocera) brachycera (O. S.) 



1877. Erlocera hnichycera Osten Sackon ; Bull. l'. S. Gcol Surv ;i- 

 205. 



Fig.— Alexander, Cfls. N. Y., 1, pi. 2,7, fig. 106 (wing) ; 1919. 



Mesonotiiin praescutimi obscure brownisli yellow, with four clearly 

 defined dark brown stripes, the lateral margin yellowish gray; ventral 

 pleura clear gray. Antennae with basal segments obscure yellow, 

 flagellum black. Knobs of halteres darkened. Femora yellow to 

 brownish yellow, the tips narrowly blackened. Wings with a strong 

 brown tinge, produced especially by broad seams to veins; R2+3, sub- 

 equal to or a little shorter than R-i. Abdominal tergites dark brown, 

 very narrowdy yellowish laterallj" ; sternites yellow ; hypopygium dark ; 

 ovipositor with long chitinized valves. $. L. 18-17 mm.; w. 15-18 

 mm. ; antenna, 4-5 mm. $ . L. 25-27 mm. ; w. 19-20 mm. 



(Late June-early Aug.) Ont., Que., Me., N. H., Mass., N. Y., southw. to Tenn. 

 and N. C. 



H. {Eriocera) brevioricornis Alex. (Fig. 44, L). 

 1941. Hexafoma {Erlocera) hrevlorlcornls Alexander; Amer. Midi. 

 Xat., 26:311. 



Figs.— Needham, 23rd Kept. N. Y. St. Ent. for 1907, pi. 12. fig. 1 (wing) : 1908 

 (as albitarsis). Alexander. Cfls. N. Y.. 1, pi. 37, fig. 104 (wing): 1919 (as alN- 

 farsis) . 



Very similar to alhltarsls^ differing especially in the short an- 

 tennae of the male sex, which are less than one-half the body. Wings 

 more nearly hyaline. $. L. 6.5-7.5 mm.; w. 8-8.5 mm.; antennae, 

 about 3.5 mm. ?. L. 9-10 mm.; w. 9-10.5 mm. 



(June-July) Que., southw. to Mass., Ct., N. Y., X. C. and Tenn., the latter in the 

 mountains. 



Connecticut. — Type-material of albitarsis; New London, on sea-beach. (Osten Sack- 

 en, Mon. Dipt. N. Amer., 4:257-2.S8; 1869). 



H. {Eriocera) cinerea (Alex.) 



1912. Eriocera cinerea Alexander; Psyche, 19: 169-170. 



Figs.— Alexander, Ibid., pi. 13, fig. 9 (wing); 1912. Alexander, Cfls. X. Y.. 1. 

 pi. Z7, fig. 108 (wing) : 1919. 



Mesonotum yellowish gray, the praescutum with three conspicu- 

 ous brown stripes, the median one broad and undivided; posterior 

 sclerites and pleura clear gray. Antennae ( c5 ) nearly three times 

 body, basal flagellar segments microscopically spinose:^ antennae 5 

 short. Vertical tubercle conspicuous, especially of <?. Knobs of hal- 

 teres weakly darkened. Femora yellow, tips narrowly blackened. 

 Wings with" a brownish tinge, produced by darkened seams to veins; 

 i?2+3 one-half or more of ^3: cell 1st Mi rectangular, with tn-cu at 

 near one-third to one-fourth its length. Abdomen dark brown, sparse- 

 ly pruinose, extreme lateral margins of tergites pale. $. L. 9-10 

 mm.; w. 12-13 mm!; antenna, about 27 mm. $. L. 11-11.5 mm.; w. 

 11-11.5 mm. 



