igii.] G. RiCARDO : The Oriental Tabanidac. 393 



(Flower); one from Sarawak, 56, 14 (vSaunders) ; two from Trin- 

 comalee, 2, 10 90 — 10, 9, 91 (Yerbury). 



Walker describes the var. " with two bands, one black, the 

 other brown." I should rather describe it as having one black 

 band only, on the posterior l)order of the second segment. It is 

 related to C. fasciata, but distinguished from it by the facial 

 tubercle being yellowish brown, becoming black only at its upper 

 corners ; the legs are also paler. The species described by Rondani 

 as C. unizonatns is a synonym of this, and not of C. signifey, 

 Walker, as suggested by Osten Sacken, who states that the face in 

 the Rondani species is yellow, which agrees with the colouring 

 of the face of this species (see Osten Sacken, in Berlin. Ent. Zeit., 

 xxvi, p. 97), Ricardo, Ann. Mag. Nat. Hist (7), ix, p. 376. 



Length of type 11 mm,, of others 9 — liV mm. 



When further material is available, this species may prove to 

 be only a subform or identical with Chrysops fasciata, Wied., 

 the abdomen with only one black band on the posterior border of 

 second segment and the more largely yellow colouring of the face 

 appearing the only differences. 



Chrysops signifcr, cr' , Walker. 



Froc, Linn. See. London, v, p, 276, 1861 ; Ricardo, Ann. 

 Mag. Nat, Hist, (7), ix, p. 376 (1902). 



There is only the type, a male, in Brit. Mus, coll. from 

 Batchian, but Osten Sacken records males and females from the 

 Philippines and states they vary ver}^ much in size. Ost. vSacken. 

 Berlin. Ent. Zeit., xxvi, p. 97, 1882. 



The species is distinguished from Chrysops fixissima and 

 fasciata by the shape of the second band on the third segment, 

 which is not present in Chrysops flxissiina and Chrysops fasciata, 

 in this species it is concave in the middle, neither of the bands 

 reach the sides, but the third and fourth segments are bordered 

 with a narrow black stripe. Legs in the type are yellowish brown, 

 the hind pair darker, tibiae slightly incrassate. Wings as in 

 Chrysops fasciata. 



Length of type 9^, mm. 



Chrysops cincta, Bigot, 



Mem. Soc. Zool. France, v, p. 602 (1892); Ricardo, Ann. 

 Mag, Nat. Hist. (7), ix, p, 378 (1902), 



? Chrysops clavicrus, Tiiomson, Eugen, Resa, Dipt., p. 432 

 (1868); Ricardo, Ann. Mag. Nat. Hist. (7), ix, p. 373 (1902).^ 



Antennae as long as the head and thorax together, black, the 

 lirst segment (joint) pale yellow, the second the same length, 

 palpi whitish yellow; face and forehead covered with a yellowish 

 tomentum, under the antennae a heart-shaped spot, an oval callus 

 at base of forehead, another transverse one at vertex, all shining 

 black; thorax black, a little yellowish down at the sides- 



