Xo. 64] DIPTERA or COXXECTICTT : TAXONOMY 373 



to two or three at extreme outer end; male hypopygium with the outer 

 dististyle narrow, terminating in a short curved black' spine ; inner dististyle 



extended into a long straight apical point (Fig. 45, A) harperi 



Wings broad, cell 1st M-^ correspondingly widened; Rs short, subequal to its 

 anterior branch ; long conspicuous macrotrichia on distal half of main stem 

 of M ; male hypopygium with the outer dististyle a flattened blade that is 

 suddenly narrowed to a black, nearly straight point : inner dististyle bcnring 

 a blackened lateral branch at near midlength (Figs. 43, G; 45, B) unica 



Austrolimnophila harperi (Alex.) (Fijr. 45, A). 



r.>i>(;. Llmnophil(( luirpen Alexander; In.sec, Tnscit. Menst.. 14:23-24. 



]SIesonotal i)raesciitiim yello\yish gray with three blackish stripes, 

 the median area broad. Wings with a i-estricted darker brown pat- 

 t-ern, including the stigma and clouds at origin of Rs, along cord and 

 on outer end of cell 1st M>: m-cu at near midlength of cell 1st Mo. 

 Male hypopvgium (Fig. 45. A). S. L. T-S mm.: w. 7.5-8.5 nun. 9. 

 L. 10-11 nun.: w. 9-10 nmi. 



(June) N. Y. (high mts.), westw. to Alta. (Hudsonian, high Canadian). 



Resting on wet faces of vertical cliffs. The habits of the adults 

 have been brietlv described by the writer (Bull. Brooklyn Ent. Soc, 

 24:23; 1929). 



A. toxoneura (O. S.) (Fig. 43, F). 



1859. Lhnnophila to.vonenra Osten Sacken : Proc. Acad. Xat. Sci. 

 Philadelphia, 1859:236. 



Figs.— Needham, 23rd Kept. N. Y. State Ent. for 1907, pi. 18. fig. 2 (ven.) ; 

 1908. Alexander. Cfls. N. Y., 1. pi. 38. fig. 126 (ven.) ; 1919. Dickinson. Cfls. Wise, 

 p. 202, fig. 94 (wing) ; 1932. 



Head light gray. Mesonotum brownish yellow, the ])raescutum 

 with two slightly darker brown submedian stripes: lateral margin of 

 praescutum sometimes slightly darkened: p.sendosutural foveae pale; 

 pleura yellow, usually with a more or less distinct darkening on the 

 propleura and anepisternum. Wings (Fig. 43. F) with A's short, 

 strongly arcuated to angulated at origin: m-cu at near midlength of 

 cell Isi M-2\ cell J/i deep. Abdomen elongate, in male with hypopyg- 

 ium blackened, i . L. 6-7 mm.: w. 6.5-8 mm. 9. L. 8-9 mm.: w. 

 9-11 mm. 



(June, July) Ont., Que., N. B., Me., N. H., Vt., Mass.. N. Y., westw. to Wise, 

 southw. to \^a. and Tenn. 



Connecticut.— Brooklyn, June 15, 1933 (C. P. A.) ; E. Hartland, June 8. 1929 (C. P. 

 A.); Hartland, June 9, 1929 (C. P.A.); Kent Falls, June 12-13, 1931 (C. P.A.): 

 \atchaug State Forest. June 14, 1933 (C. P. A.); Norfolk, June 9, 1929, June 12. 

 1931 (C. P. A.): Riverton, June 8, 1929 (C. P. A.) ; Tunxis State Park, June 12, 

 1931 fC. P. A.); Union, June 23. 1932 (N. T.). 



A. unica (O. S.) (Figs. 43, G; 45, B). 



1869. Limnophila umca Osten Sacken: ^lon. Dipt. X. Amer., 4:205- 

 206. 



Figs —Alexander, Cfls. N. Y., 1, pi. id, fig. 114 (wing) ; 1919 Dickinson, Cfls. 

 Wise. p. 204. fig. 98 (wing) ; 1932. 



