244 Records of the Indian Museum. [Vol. IV, 



This name is preoccupied by a Walker species from India. 



The species is ver}' probably the same as the specimens I have 

 identified from Japan as Tahanus cordigcr, Mg., but the description 

 is too short to make a decision possible. 



Tabanus yao, 9 , Macquart. 



Dipt, exot., V, p. 44 (1855). 



Tahanus confucius, 9 , Macquart, l.c.^ p. 46. 



Tahanus irigonus, 9 , Coquillet, Proc. U. vS. Nat, Mus., xxi, 

 p. 309 (1898). (Japanese subform.) 



? Atylotus rufidens, 9 , Bigot, Ann. Soc. Entom. France (6), 

 vii, Bullet. Ixxviii (1887). [Atylotus.] 



Both the Macquart types in Mr. Verrall's coll. are from N. 

 China, and with them are a series of females from Japan which 

 are almost identical and may perhaps be considered as the Japanese 

 subform T. trigonus. 



In Brit. Mus. coll. are females from Wei Hai Wei, China 

 (Muat), " biting horses; " and from Shanghai; and males from 

 China (Walker coll.), and males and females from Japan [T. trigonus). 



Black. Thorax with ash}' grey pubescence. Abdomen blackish, 

 with dorsal white spots and red segmentations. Antennae red with 

 the apices black. Legs red. Wings with an appendix. 



Length 9 lines, 9 . Palpi yellow. Beard white. Face with 

 white tomentum, sides with yellow tomentum. P'orehead anteriorly 

 with white tomentum, then with yellowish grey tomentum ; an- 

 terior callus testaceous, prolonged by a black line. Antennae 

 3'ellow; the last four divisions of the third joint black, this joint 

 with the usual tooth. Eyes naked. Thorax with ashy grey tomen- 

 tum, and yellow hairs. Abdomen blackish, with dorsal triangular 

 spots of a greyish white tomentum, as well as the posterior borders 

 of the segments at the .sides ; sides of the three first sometimes of 

 brownish yellow ; under side yellow ; the three last segments blackish 

 with yellow posterior borders. Legs 3'ellow, anterior coxae with 

 yellow hairs. \\^ings a little yellowish, veins normal with the 

 exception of the appendix. From N. China. M. Bigot. This 

 Tahanus resembles T. confucius strongly ; and as I have only ob- 

 served males in this latter and females in the former, it appears 

 that they belong to the same species. However the appendix, 

 which is not found in T. yao, is a character that we have never 

 observed to be sexual, and this determines us to consider these 

 two species as distinct. Macq., Dipt, exot., v, p. 44. 



On page 46 Macquart gives the description of Tahanus confu- 

 cius, as follows : — 



Black. Thorax with white stripes. Abdomen with the sides 

 and segmentations testaceous. Antennae red with the apices black. 

 Legs red. 



Length 8 Hues, o'. Palpi brownish, the last joint oval. Beard 

 yellow. Face with white tomentum, sides with ^^ellow tomentum. 



