944 Charles Paul Alexander 



hypopygium with the ninth tergite (Plate XLIX, 267) having a slender median lobe» 

 truncated at the apex, with a conspicuous chitinized claw on either side of the tergal 

 region. [Berl. Ent. Ztschr., vol. 7, p. 292. 1863.] (Plate XLV, 214, wing.) 



T. caloptera Loew 

 (Two species are apparently confused under this name; true caloptera has the bases 

 of cells Ml, Ms, and Mi pale, as figured, and the male hypopygium lacks the clawlike 

 appendage on either side of the median lobe of the ninth tergite.) 

 Smaller, wing of male 23 mm. or less, and paler-colored; prescutal stripes not heavily mar- 

 gined with brown ; antennae longer, extending nearly to the base of the abdomen, bicolor- 

 ous; abdominal tergites without a dark brown sublateral stripe; wings without a con- 

 spicuous yellow spot in cell 1st Rr, cells Mi, M2, M«, and Cih hyaline basally; male 

 hypopygium with the ninth tergite (Plate XLIX, 264) having a broad median lobe, 

 rounded at the apex; no lateral claws on the tergal region. [Berl. Ent. Ztschr., vol. 7, 

 p. 291. 1863.] (Plate XLV, 215, wing.) T. strepens Loew 



12. Antennae short, with only the basal segments of the flagellum distinctly bicolorous; 



wing pattern more clear-cut, the costal stripe broader and darker brown, vein Cu 

 and the basal deflection of Cut with a broad dark brown seam. [Berl. Ent. Ztschr., 

 vol. 7, p. 291. 1863.] (Plate XLV, 216, wing; Plate XLIX, 265, ninth tergite.) 



T. bella Loew 



Antennae longer, with all except the terminal segments of the flagellum distinctly 



bicolorous; wing pattern less distinct and rather poorlv defined, the brown stripes 



and seams much paler. [Berl. Ent. Ztschr., vol. 7, p. 290. 1863.] (Plate XLV, 217, 



wing.) T. eluta Loew 



13. White obliterative streak before the wing cord passing beyond cell 1st Mi and almost 



reaching the wing margin; male hypopygium having the region of the ninth tergite 

 without a brush of bristles on its lateral part. [Berl. Ent. Ztschr., vol. 8, p. 56. 1864.] 



T. fraterna Loew 



White obliterative streak before the wing cord ending in the extreme base of cell M4; 



male hypopygium having the region of the ninth tergite (Plate XLIX, 263) with a brush 



of long, stiff, reddish bristles on its lateral part. [Ent. Syst., vol. 4, p. 235. 1794.] 



(Plate XLV, 218, wing.) T. tricolor Fabr. 



(Tipula vitrea v. d. W. [Tijd. Ent., vol. 24, p. 150, pi. 15, fig. 5, 1881] is very close 

 to T. tricolor but may be a good species. The description of T. vitrea calls for a tes- 

 taceous abdomen with a brown lateral stripe, while in T. tricolor the abdomen is con- 

 colorous thruout.). 



14. Costal margin of wings dark brown; male hypopygium with the sclerites of the ninth 



segment fused into a continuous ring 15 



Costal margin of wings not dark brown 16 



15. Wings with the brown costal margin including the base and the cephalic parts of cells R 



and R\; male hypopygium with the ninth tergite (Plate XLIX, 266) having a low, broad, 

 depressed, median protuberance {tricolor group). [T. saiji Alex., Psyche, vol. 18, 

 p. 194, 1911. T. costalis Say, preoccupied, Journ. Acad. Nat. Sci. Phila., vol. 3, 



p. 23, 1823.] (Plate XLV, 219, wing.) T. sayi Alex. 



Wings with the brown costal margin including cells C and Sc only; male hypopygium 

 with the ninth tergite fPlate L, 274) having a median notch. [.Journ. Acad. Nat. 

 Sci. Phila., vol. 3, p. 23. 1823.] (Plate XLV, 220, wing; Plate LIII, 332, lateral 

 aspect of male hypopygium.) T. cunctans Say 



16. Wings strongly tinged with yellow; a brownish cloud at the end of vein 2d A; male 



hypopygium with the sclerites of the ninth segment fused into a continuous ring and 

 the tergal region (Plate L, 273) notched medially. \T. ultima Alex., Insec. Inscit. 

 Menst., vol. 3, p. 128, 1915. T. flavicans Fabr.", Syst. Antl., p. 24. 1805; written 

 flavescens.] (Plate XLVII, 232, wing; the figure of the wing reproduced far too dark 

 to give an idea of the pattern in this species. Plate LIII, 333, lateral aspect of 



male hypopygium.) T. ullima Alex. 



Wings not strongly tinged with yellow, or if so without a brown cloud at the end of 

 vein 2d A 17 



