1913] The North American Species of Tipula. 467 



45. The two upper arms of lateral appendages consist of two small, 



subequal, spine-like processes. Brown; pleura hoary, a brown line 

 running from upper angle of mesopleura to neck; abdomen yellowish- 

 brown, darker posteriorly; ninth tergite about twice as long as wide, 

 posterior lateral angles ending in short, blunt points; posterior mar- 

 gin of ninth sternite with a pair of long twisted, heavily chitinized 

 processes. Wings brownish with a few indistinct, whitish spaces. 



Length 15 mm. (c? and $ ) coloradensis Doane 



First and second arms of lateral appendages very different in size and 

 shape 46 



46. The blade-like processes arising from the posterior margin of the ninth 



sternite long, slender, sinuous. Brown; pleura grayish, with a brown- 

 ish line reaching from neck to base of wing; abdomen yellowish- 

 brown with three interrupted, brown lines. Hypopygium much 

 elongated; extreme tip of ninth tergite produced downward into two 

 short, sharp, curved claws; posterior margin of ninth sternite deeply 

 notched and provided with two long, slender, sinuous, blade-like 

 processes. Wings brownish with several whitish, hyaline spots in 

 nearly all the cells — wing pattern scarcely distinguishable from 



fallax — Length 15 mm alia Doane 



The blade-like processes shorter, more triangular. Brown; abdomen 

 with bioad median and narrow lateral stripes; ninth tergite a little 

 longer than wide, posterior margin with a pair of short, black, down- 

 ward projecting processes; ninth sternite completely divided, from 

 the incision arises a pair of rather long, thin, sharp-pointed, blade- 

 like processes; bases of first and fourth posterior cells whitish, discal 

 cell almost wholly white. Length 13 mm neucomeri Doane 



47. First posterior cell white at base 48 



First and fourth posterior cells white at base 49 



First posterior cell not white at base 50 



48. Smaller, 13-15 mm., ovipositor not serrulate beneath. Yellowish; 



pleura spotted with brown. Hypopygium large, ninth tergite large, 

 longer than wide, narrowed posteriorly, its apex with a strongly 

 chitinized, black, downward directed short, toothed process; ninth 

 sternite with deep narrow incision, containing two long, slender, 

 pointed, sickle-shaped processes; the lateral angle of the incision with 



a long, pendulous process. Length 13-15 mm ./ze&esLoew 



Larger, 21 mm. Testaceous; abdomen with three fuscous stripes, 

 lamella? of ovipositor serrulate beneath. Wings grayish-fuscous, 

 fourth and fifth posterior cells somewhat paler at their bases and 

 along the vein separating the same. Length 21 mm serrulaia *Loew 



49. Color gray, median line of thorax not fusiform. Abdomen trivittate; 



wings grayish-fuscous, no white spots along posterior wing margin. 



Length 193^ mm discolor fLoew 



Color yellow, median line of thorax fusiform. Abdomen trivittate, 

 ultimate segments nearly black. Hypopygium small, ninth tergite 

 very small, sub-orbicular; wings pale brown with about four whitish 

 spots. Length 12 mm canadensis Loew 



50. Longitudinal veins fuscous at tip; femora with a whitish band a short 



distance before the tip. Brown; pleura grayish brown, with an 

 irregular line and spots dark fuscous. Ninth tergite somewhat tumid, 

 margin reflexed and with a pair of inconspicuous, black edged teeth; 

 pleural suture complete, ninth sternite almost hidden by eighth sternite 



posterior margin with two broad appendages. Length 25 mm 



rupicola JDoane 

 Longitudinal veins not fuscous at tip, femora without preapical white 

 band 51 



*Type minus flagellum, joints of same may be unicolorous. 

 tjoints of flagellum toward the base pale brown, black at base, outer joints 

 entirely dark fuscous. 



% Should have been placed under 37. 



