The Crane-Flies of New York — Part I 953 



black stripes which are confluent across the bases and less distinctly across the apices 

 of tergites 2 to 5; wing 15 mm.; cell 1st Mi elongate; wings yellowish subhyaline, the 

 obliterative streak very reduced, appearing as a spot before the stigma and a linear 

 dash in the base of cell Ht Mi and the end of cell R. [Proc. Acad. Xat. Sci. Phila 

 p. 476-479, pi. 16, figs. 7, 8. 1915.] (Plate LIII, 336, lateral aspect of male 



hypopygium.) T. taughannock Alex. 



Antennae shorter, not extending beyond the base of the abdomen; ninth tergite not as 

 described; if at all similar {T. monticola), the eighth sternite armed with brushes of 

 hairs or bristles 85 



85. Ninth tergite (Plate LI, 301) small, with the caudal margin bearing a blunt median 



lobe and with a prominent divergent horn on either side; thoracic pleura clear light 

 gray; eighth sternite unarmed; size small, wing 11.5 mm.; antennae uniform dark 

 brown. [Ins. Saunders., vol. 1, Dipt., p. 442. 1856.] (Plate XLVIII, 251, wing.) 



T. dejecta Walk. 

 Ninth tergite not as above 86 



86. Ninth tergite (Plate LII, 308) small, the caudal margin with a broad V-shaped notch; 



ninth pleurite produced caudad into a short, flattened, subspatulate lobe; eighth 

 sternite extensive, narrowed behind, the caudal margin broadly U-shaped and bearing 

 a row of prominent yellow hairs; color light gray, the thorax marked with brown; 

 wing about 16 mm. [Proc. Acad. Nat. Sci. Phila., p. 488-490, pi. 16, fig. 12. 1915.] 



(Plate XLVII, 234, wing.) T. loewiana Alex. 



Hypopygial characters not as above 87 



87. Coloration of thoracic pleura light gray; thoracic dorsum gray or gra3rish, with brown 



stripes 88 



Coloration of thoracic pleura yellow, in some cases whitish pollinose; dorsum yellow 

 or brown 90 



88. Ninth sternite with a stout pendulous lobe directed ventrad, bearing a dense tuft or 



pencil of long reddish hairs; eighth sternite large, prominent, extending far caudad 

 and its concavity forming a sheath for the base of the ninth sternite, the lateral angles 

 bearing dense tufts of long, reddish-silvery hairs which are decussate; between these 

 lobes a broad median projection, the lateral angles of which are slightly recurved 

 and the caudal margin is broadly concave; color grayish, with distinct dark brown 

 thoracic stripes; wings light brown, the tips a little darker; a large vitreous spot before 

 and beyond the stigma; wing of male 12.6 mm. Arctic species. [Proc. Acad. Nat. 

 Sci. Phila., p. 496-497. 1915.) (Plate LII, 314, ninth tergite.) ...T. penicillata Alex. 

 Hypopygial characters not as above. Austral species 89 



89. Antennae short, the flagellar segments deeply constricted beyond the basal enlargement; 



six brown stripes on the mesonotal prescutum; male hypopygium with the ninth 

 tergite (Plate LII, 305) almost straight across the caudal margin, with a deep and 

 narrow impressed median furrow; lobes of the caudo-lateral angles of the ninth sternite 

 pendulous, directed ventrad, the apices clothed with short golden hairs; eighth sternite 

 (Plate LIII, 326) with four conspicuous lobes, the outer pair very broad and flattened, 

 their apices oblique, the inner pair being the divaricate ends of a median process 

 on the caudal margin of the sternite, their apices clothed with a dense brush of golden- 

 yellow hair. [Journ. N. Y. Ent. Soc, vol. 9, p. 104-105. 1901.] . . .T. australis Doane 

 Antennae longer, the flagellar segments not constricted beyond the basal enlargement; 

 three brown stripes on the mesonotal prescutum; male hypopygium with the ninth 

 tergite (Plate LII, 306) having the caudal margin deeply and broadly notched medially; 

 lobes of the caudo-lateral angles of the ninth sternite not pendulous, directed inward; 

 eighth sternite (Plate LIII, 327) without lobes on the caudal margin. [Proc. Acad. 

 Nat. Sci. Phila., p. 501-504, pi. 17, fig. 19. 1915.] (Plate XLVII, 238, wing.) 



T. dietziana Alex. 



90. Coloration bright brownish yellow, the thorax with dark brown stripes; pleura dull 



yellow, whitish pollinose; male hypopygium with the ninth tergite (Plate LII, 307) 

 broadly concave caudally, the lateral angles not prominent; antennae with the three 



