1920] Alexander: Crane Flies From Formosa 267 



not chitinized, with a broad, deep, U-shaped median notch. Ninth 

 pleurite complete; outer pleural appendage narrow basally, expanded 

 and darkened outwardly; inner pleural appendage large and very 

 compressed. Ninth sternite not notched medially, the caudal margin 

 being almost straight across, the median area provided with a small, 

 cushion-like lobe. Eighth sternite unarmed. Ovipositor of the 

 arctica type, the intermediate lateral teeth of the tergal valves moder- 

 ately acute. 



Habitat: Formosa. Holotype, cf, Noko, May 11, 1919 

 (T. Shiraki) No. 1324. Allotopotype, 9. Paratopotype, cf. 



Tipula bicornuta sp. n. 



Antennae of the male moderately elongated, indistinctly bicolorous; 

 mesonotum gray, the praescutum with four indistinct greenish brown 

 stripes; scutellum and postnotum with a capillary brown line; wings 

 subhyaline with a rather pale grayish marmorate pattern; abdomen 

 yellowish, dark brown apically; male hypopygium with the pleurites 

 produced into cylindrical, black, curved horns. 



Male — Length, 11 mm.; wing, 13 mm.; antenna about 5.2 mm. 



Frontal prolongation of the head buffy; palpi brown. Antennae 

 of the male rather elongated, nearly half the length of the body; scape 

 and first flagellar segment yellow, the remaining flagellar segments 

 black basally, dark brown distally, to produce an indistinct bicolorous 

 appearance; verticils very long, approximately as long as the segments 

 that bear them. Head buffy with an indistinct capillary brown median 

 line. 



Mesonotal praescutum light gray, with four obscure greenish brown 

 stripes, the intermediate pair contiguous anteriorly, soon bent outwards 

 to leave a linear strip of the ground color between them; remainder of 

 the mesonotum light gray, with a capillary brown median line, the scutal 

 lobes with greenish brown centers. Pleura yellowish, sparsely white 

 pruinose. Halteres light brown, the knobs dark brown, slightly paler 

 at the tips". Legs with the coxae pale, whitish pruinose; trochanters 

 yellowish; femora brown, the tips broadly dark brown; tibias and tarsi 

 dark brown. Wings subhyaline, the base and costal region yellowish; 

 stigma brown; a weak gray clouding in the cells, including the wing- 

 apex; clouds near midlength of cells R and M, and in the ends of cells 

 Cm, 1st A and 2nd A; the subhyaline areas include an oblique band 

 beyond the stigma, passing from the outer end of cell 2nd Ri across the 

 bases of cells R^, R^ and R,,, through 1st Mi into the base of cell M4; 

 veins dark brown. Venation: Cell R^ large, vein Ri being longer than 

 /?2+3; Rs shorter than R^; petiole of cell M\ shorter than m; m-cu obliter- 

 ated by the fusion of Cui on M3+4. 



Abdomen yellow basally, with an indistinct dorsal stripe; segments 

 five to nine dark brown. Male hypopygium with the ninth tergite 

 narrow, the caudal margin heavily chitinized and with a broad U-shaped 



