264 CONNECTICUT GEOL. AND NAT. HIST. SURVEY [Bllll. 



Basal section of Ms+i usually longer, subequal to or longer than basal section 

 of Mi+2, tn-cu joining M opposite or beyond level of r-m; where above is 

 questionable, Rs is more than twice m-cu ; wing-pattern usually heavy, 

 variegated brown, gray and whitish, often with a dark area at arculus ; 

 cell Sc not darkened unless remainder of ground-color is likewise infumed. 

 Male hypopygium with eighth sternite simple or variously provided with 

 lobes or pencils of setae trivittafa group 



The horealis or unca group. 



Antennae tending to be elongate. INIale hypopyginni with the 

 inner dististyle very complex, its lowermost appendage forming a 

 pale to sclerotized pendulous lobe that extends cephalad along the 

 ventral surface of hypopygium. The species are most numerous in 

 midsummer, being commonh^ found in mesophytic woodlands. 



Key to Species 



1. Antennae with at least the basal flagellar segments bicolorous, yellow, the 



enlargements dark 2 



Antennae with flagellar segments uniform in color 3 



2. A narrow, interrupted dark stripe on dorsal thoracic pleura, extending from 



cervical sclerites to beneath the wing-root ; male hypop\^gium with lower 



pendulous lobe of inner dististyle pale ■ • • • borealis 



No darkened pleural stripe ; male hypopygium with the pendulous lobe of 

 inner dististyle strongly sclerotized, brownish black inclusa 



3. Antennae {$) elongate, if bent backward extending about to midlengtli of 



second abdominal segment 4 



Antennae shorter in both sexes, in $, if bent backward, extending about to 

 base of halteres or shortly beyond 5 



4. Male hypopygium with eighth sternite deeply trilobed, fringed with long gold- 



en-yellow setae ; gonapophyses relatively short and inconspicuous, not 

 twisted, the tips decurved ; ninth tergite not terminating in a median point 



(Fig. 29, H) helderbergensis 



Male liypopygium with eighth sternite scarcely lobed, the setae shorter and 

 inconspicuous ; gonapophyses elongate, twisted on their own axes, jutting 

 from genital chamber; ninth tergite projecting as a median point (Fig. 

 29, I) latipennis 



5. Wing-pattern subobsolete ; size small (wing, $, under 12 mm.) ; male hypo- 



pygium with lower process of inner dististyle very long and membranous 



gaspensis 

 Wing-pattern distinct; size larger (wing, $, over 13 mm.) ; male hypopygium 

 with the lower process of inner di.stistyle more or less sclerotized and 

 blackened apically 6 



6. Antennal flagellum pale, yellowish brown ; lower pendulous lobe of inner 



dististyle short, slender, claw-like grata 



Antennal flagellum dark brown ; lower pendulous lobe of inner dististyle 

 broad, pale, the apex obtuse afflicta 



Tipula iOreomyza) afflicta Dtz. 



1914. T'rpida sus^fecta Dietz; Trans. Amer. Ent. Soc, 40:351-352; 



(nee suspecta Loew, 1863). 

 1015. T. ajfUeta Dietz; Ent. News, 26: 125. 



Figs. — Dietz, Trans. Amer. Ent. Soc, 40, pi. 13, figs. 5, 6 (hyp.), pi. 14, fig. 2 

 (wing) ; 1914 



Male hypopygium with lower process of inner dististyle broad, 

 the apex obtuse, somewhat sclerotized apically. $. L. 13 mm.; w. 

 13.5 nun. 



