du 



CONNECTICUT GEOL. AND NAT. HIST. SURVEY 



Bull. 



stricted limits. The genitalia of the male provide the best char- 

 acters for specific determination. 



Key fo Species 

 (Based especially on male characters) 



1. General coloration of mesonotum and pleura gray ; male hypopygium with the 



outer dististvle stout basally, narrowed to ,a flattened subacute apex. 



(Fig. 39, C) saxicola 



General coloration of mesonotum and pleura ochreous ; male hypopygium 

 with the outer dististyle not so thickened basally (Fig. 39, A, B) 2 



2. Male hypopygium with the outer dististyle elongate, the tip broadly obtuse ; 



gonapophyses small, curved strongly laterad (Fig. 39, A) obtusa 



Male hypopygium with the outer dististyle narrowed to an acute or subacute 

 point ; gonapophyses and other elements of the phallosome long and nar- 

 row, nearly straight (Fig. 39, B) opalizans 



Figure 38. Limoniini ; details of various subtribes. 



A. Helms (Heliiis) mainensis Alex.; head. (Heliaria). 



B. H. (H.) flavipcs (Macq.) ; wing. 



C. Antocha (Antocha) saxicola O.S. ; wing. ( Antcjcharia ). 



D. Elliptera illini Alex.; wing. (Ellipteraria). 



E. E. tennessa Alex. ; wing. 



F. Dicranoptycha septemtrionis Alex.; wing. (Dicranoptycharia). 



G. Orimarga (Diotrcpha) mirabilis (O. S. ); wing. (Orimargaria). 



Symbols: a, antenna; p, maxillary palpus; M, Media; R, Radius. 



Antocha {Antocha) obtusa Alex. (Fig. 39, A). 



192;"). Antocha [Antocha) oUusa Alexander; Ent. News, 30: 201-202. 



General coloration ochreous, the praescutum with a conspicuous 

 brown median stripe. Male hypopygium (Fig. 39, A). $. L. about 

 4.8 mm.; w. 5.5 mm. 9 . L. about 5.2 mm.; w. 6 mm. 



(May-Aug.) Que., N. Y., Mich. 



