No, 64] DIPTERA OF CONNECTICUT : TAXONOMY 207 



1929) added no fewer than 68 species of Tipulidae to tlie list as tlien 

 known. Special attention has been devoted to Litchfield County, in- 

 cluding a systematic month b^^ month survey of the rich fauna of 

 Kent Falls and vicinity. 



Especial thanks are extended to Dr. Britton and to Dr. Friend 

 for their kindly advice and cooperation during the progress of this 

 study. 



Abbreviations: Besides the standard State abbreviations, a few 

 others are given throughout the text in order to save space. These 

 are as follows: 



abdom. — abdominal southw. — southward 



e. — east, eastern southwestw. — southwestward 



eastw. — eastward ven. — venation 



hyp. — male hypopygium w. — west, western 



1. — body length westw. — westward 



n. — north, northern w. — wing length 



northw. — northward S — male sex 



northwestw. — ^northwestward 2 — female sex 



s. — south, southern 



Key to Subfamilies 



1. Terminal segment of maxillary palpus elongate, whiplash-like; nasus usually 



distinct; antennae usually with 13 segments; wings (Fig. 24) with Sci 

 usually atrophied; vein Cui constricted at m-cu, the latter usually at or 



close to the fork of Mu4.; body-size large Tipulinae 



Terminal segment of maxillary palpus short ; no distinct nasus ; antennae 

 usually with either 14 or 16 segments ; Sci present, the tip atrophied in 

 some Cylindrotominae (Fig. 33) ; vein Cui straight, not constricted at 

 m-cu, the latter placed far before the fork of Mui, usually at or close to 

 fork of M ; body-size usually small or medium 2 



2. Wings with tip of Rn.2 atrophied, giving the appearance of a long fusion 



back from the margin of veins Ri and the anterior branch of its sector; 



free tip of Sc2 preserved (Fig. 33, E-I) Cylindrotominae 



Wings sometimes with tip of R1+2 atrophied (Limoniini, Fig. 34, A, B) but 

 not giving the appearance of a long fusion back from the margin of veins 

 Ri and the anterior branch of the sector; free tip of Sc2 preserved in 

 many species of Limoniini (Fig. 34, A, B), lacking in all other tribes 

 in this fauna (Figs. 38, 40, 43, 44, 47, 50) Limoniinae 2*^7 



The only subapterous crane-flies within our faunal limits are 

 members of the genus Chionea (Eriopterini) and the female sex of 

 some species of Pedicia (Pediciini), both belonging to the subfamily 

 Limoniinae. 



Subfamily Tipulinae 



In the local fauna, the Tipulinae include almost all of the larger 

 species of Tipulidae. Most of the included forms have an average 

 size greater than that of the other major subfamily, the Limoniinae. 

 Exceptions in the latter group occur in rare instances, as certain 

 species of Limonla^ Limnophila^ Erloccra^ and Pedicia. 



