164 Psyche [October 



The hypopygium differs from T. alia in the following particu- 

 lars: ninth sternite divided; the blade-like processes arising from 

 the posterior margin are shorter and more triangular, in this respect 

 more like T. fallax from which it may be separated by the char- 

 acter of the pendulous appendage which has three arms as in T. 

 alia instead of two as in T. fallax. 



Tipula coloradensis sp. nov. 



Brown: Head light brown with a broad, brown line above; rostrum yellowish, 

 darker above; palpi brown, lighter toward the tips; first and second segments of 

 antennae yellow, others brown, cylindrical; antennae of female with third and 

 fourth joints more or less yellow; collar yellowish, with a median bro^ii spot; 

 mesonotum grayish bro^Ti, with three brown stripes each divided by a rather 

 broad, grayish line; the gray line dividing the median brown line much narrowed 

 anteriorly; pleura hoary; mesopleura and sternopleura much darker; a brown 

 line running from the upper angle of the mesopleura to the neck; scutellum yel- 

 lowish brown with a median darker line; metanotum dark brown; hal teres yel- 

 lowish toward the base, darker toward the tip, knobs brown; legs yellowish, tarsi 

 and tips of femora and tibiae darker; abdomen yellowish brown, darker poste- 

 riorly; eighth sternite wholly brown, posterior portion with very thick rather long 

 yellow hair, posterior margin with a median tuft of yellow hairs and with a pair 

 of rather broad, flat, somewhat triangular, yellowish appendages which are folded 

 back over the posterior-lateral portions of the sternite; ninth tergite very dark 

 brown, about twice as long as wide; posterior lateral angles ending in short blunt 

 points below which is a pair of short triangular strongly chitinized plates; ninth 

 sternite divided below by a rather broad suture which is filled with a whitish mem- 

 brane, posterior margin with a pair of long twisted heavily chitinized processes 

 which are narrowed toward the tip and then suddenly broadened into flat back- 

 ward projecting plates; no pleural suture; first pair of appendages broad at the 

 base, narrowing toward the tip which is broadly rounded; the lateral appendages, 

 arising from above the lateral membranous incisions, consist of broad, rather 

 weakly chitinized basal portions from the anterior margins of which projects a short 

 two-pointed process and from the posterior margin a long rather broad membra- 

 nous lobe with the tips distinctly incurved; upper valves of ovipositor long and very 

 slender; tip roimded; lower valves not reaching to tip of upper valves, broader, 

 flat, tip rounded; wings with a brownish tinge, with a few indistinct whitish spaces 

 as follows : one in the posterior portion of the second basal cell beyond the middle, 

 two near the middle of the anal cell, a larger one extending from the base of the 

 second marginal cell through the discal cell and fading out along the margins of 

 the foiu-th and fifth posterior cell; distal portion of first posterior cell somewhat 

 lighter; stigma and a small spot over the origin of the praefurca brown; veins 

 brown. Length male and female 15 mm.; wing 15 mm. Tabernash, Col. One 

 male, three females. 



