1920] Alexander: Crane Flies From Formosa 263 



Ry, R-s, R-,, Ml and 2nd M2 indistinctly paler; a broken X-shaped cross- 

 band of brown before the cord extending from the subcostal cell to the 

 posterior margin of the wing; the amount of yellow in cell R 

 enclosed between the upper arms of the X is variable, more extensive in 

 the female, very restricted in the male; the posterior arms of the X 

 enclose a solid area in both sexes; cells 1st A and 2nd A are largely brown, 

 this appearing as a broad seam on vein 2nd A and along the posterior 

 margin of cell 2nd A , most intense in the extreme anal angle ; in the end 

 of cell R, the yellow ground-color is much paler, nearly hyaline; veins 

 dark brown. Venation: Cell Mi sessile. 



Abdominal tergites j^ellow, with a broad, conspicuous, dark brown 

 median stripe that is narrowly interrupted at the anterior margin of each 

 segment, at the posterior margin uniting with a narrow, black, posterior 

 border; last segment brownish black; sternites similar, but the median 

 stripe is reduced to a series of linear dashes. Ovipositor with the 

 basal sclerite jet-black; valves slender, deep horn-colored. 



Habitat: Formosa. Holotype, cf, Taito, February 25- 



March 27, 1919 (S. Inamura, J. Sonan and M. Yoshino) No. 



1320.Allotype, 9, Shinchiku, July 1-30, 1918 (J. Sonan and 

 K. Miyake). 



This is presumably the species reported from the island as 

 Pselliophora taprohanes (Walker) by Riedel (Arch, fiir Natur- 

 geschichte, Abt. A, vol. 5, p. 115; 1917; Ann. Musei Nat. 

 Hungarici, vol. 16, p. 320; 1918). 



Brithura Edwards. 

 Brithura conifrons Edwards. 



1916. Brithura conifrons Edwards, Ann. Mag. Nat. Hist., ser. 8, vol. 18, pp. 

 263, 264. 



One female, taken at Arisan, Formosa, October 2-23, 1918 

 (J. Sonan and M. Yoshino) No. 1334. 



Up to the present date, only the male sex of members of this 

 curious genus have been discovered. The female of B. conifrons 

 is hereby designated as allotype and may be further discussed 

 as follows : 



Allotype, 9 • Very similar to the description of the male. The 

 vertical cone is very conspicuous as in the male. The second scapal 

 segment is conspicuously brighter-colored than the first, yellowish. 

 Praescutal interspaces with an abundant erect pubescence. Abdomen 

 dark brown; eighth and ninth segments rufous. Ovipositor orange- 

 yellow, the tergal valves almost straight, acute; sternal valves shorter, 

 straight, a little higher than the tergal valves. 



