424 CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bull. 



eiied. Wings (Fig. 44, P) with a strong yellow tinge, the oval 

 stigma dark brown, conspicuous: vague seams along cord and outer 

 end of cell 1st M2\ wing-tip narrowly darkened; Ks angulated and 

 usually short-spurred at origin. Abdomen obscure yellow, the tergites 

 with J.-sha})ed darker markings; a subterminal blackened ring. $. 

 L., excluding rostrum. 7.5-8 mm. ; w\ 8-8.5 mm. ; rostrum, 7.5 mm. 9 . 

 L., excluding rostrum, 10-11 mm.; w. 10 mm.; rostrum, 8-8.5 mm. 



One small fenuile measures only 8 mm. in body and wing length 

 and, except in the abdominal pattern, apjiroaches the race described 

 below. 



(June- Aug.) Out., Que., Me., N. H., \'t., Mass., N. Y., Pa., westw. to Wise, 

 Mich, and 111., southw. to S. C, Ga. and Fla. 



Connecticut.— Bloomfield, Aug. 6, 1929 (C. P. A.) : East River, June 5, 1910 (Elv); 

 Rowayton. June 16, 1909 (C. W.J.). 



A very small race of this species has been taken in various parts of 

 the Adirondack Mountains, N. Y. 



Elephantomyia westwoodi adirondacensis subsp. nov. 



Similar to the typical form but much smaller. Abdominal seg- 

 ments with conspicuous black lateral areas but with the dorso-median 

 portion clear yellow. The male sex is unknown. $ . L., excluding 

 rostrum, 7.5-8 mm. ; w. 7.5-8 mm. ; rostrum, 4.8-5 mm. 



Holotype^ $, Wilmington Notch, Essex Co., N. Y., June 13, 1927 

 (C. P. Alexander) ; in author's collection. Paratopotypes. 29 9. 



I have also taken this form at Lake Pleasant, Hamilton Co., N. Y., 

 June 22, 1926. 



Eriopterini 



One of the largest and best-known tribes of crane-flies. In our 

 fauna, representatives of four subtribes occur. The tribe is very close 

 to the Hexatomini, especially in the two subtribes Claduraria and 

 Gonomyaria, where the chief character available for referring the 

 groups to the present tribe is to be found in the absence of tibial spurs. 



Key to Subtribes and Genera 



1. Nearly apterous species, the wings reduced to microscopic structures that 



are smaller than the halteres. (Claduraria) Chionea 



Fully-winged species 2 



2. Wings with cell Mi present. (Claduraria) 3 



Wings with cell il/i lacking 4 



3. \"ein R^^-^.^ shorter than vein Rz, cell Rz being much longer than its petiole; 



R2 far beyond fork of i?o+s+4 (Fig. 47, A) " '. . .Cladura 



A'ein /?,•.,;,, longer than vein Rz, cell Rz being subequal to its petiole; vein 

 -/?- at or before fork of i?3+4 (Fig. 47, B) Neolimnophila 



4. Rostrum very long and slender, about as long as the combined head and 



thorax; setae of legs profoundly bifid (Fig. 50, M) (Toxorhinaria) 



Toxorhina 

 Rostrum short, not exceeding the remainder of head 5 



5. Two branches of Rs reach the wing-margin (Fig. 47, E-G) (Gonomv- 



aria) 6 



Three branches of Rs reach the wing-margin (Fig. 47, H-N ; Fig 50 



A-L) : 7 



