Tabiinklaj of the AustraUan Begion. 19 



(male) from Kew Zealaml {Col. Bolton) and others iu the 

 Cockayne Coll. from Wellington. 



A small blackish species with a median stripe of grey 

 triangular spots on the abdomen. Forehead in female broad. 

 Palpi reddish yellow^ cylindrical. 



Length (males) from 7-8 mm. 



Length (females) from 7-10 mm. 



Female. Face covered with ashy-grey tomentura and with 

 black hairs. Beard white. Palpi yellowish covered with 

 thick black pubescence, almost the same width throughout, 

 ending in an obtuse point. Antennas blackish, the first two 

 joints paler with black hairs; the third joint with a small 

 tooth represented by an angle in the middle of the first 

 division. Forehead same colour as face, with black hairs ; 

 narrower at vertex, about twice as long as it is broad 

 anteriorly ; frontal callus brown, small, nearly sqtiare, with 

 a short lineal extension, far from the borders of the eyes, 

 AAhich are bare. Thorax blackish, with two grey tomentose 

 stripes ; shoulders also grey, some appresscd fulvous pubes- 

 cence on dorsum and a few longer black hairs. Scutellum 

 blackish covered with grey tomentum. Abdomen blackish, 

 the triangular spots present on the second, third, and fourth 

 segments, largest on the second segment, the segmentations 

 grey tomentose, the pubescence on the spots pale fulvous, 

 elsewhere chiefly black ; underside with grey tomentose 

 bands. Legs reddish yellow, the femora reddish brown, 

 some fulvous pubescence on the middle and hind tibise, else- 

 where chiefly black. Wings clear, with yellowish-black 

 veins ; no appendix ; all posterior cells widely open. 



Male is identical. Palpi with long black hairs. Face 

 with thick black pubescence, some black liaiis present on the 

 subcallus and between the eyes reaching to the vertex. 

 Eyes with the upper facets only a little larger than those of 

 lower part of eyes ; in undenuded specimens the pubescence 

 on abdomen is thick, and a distinct triangular spot is present 

 on the fifth segment. 



Bigot's type, as published by me in 1900, is identical with 

 the male specimens of this species, but Tahanus sarpa, 

 AValker, is not identicfil, as affirmed by Prof. Hutton, who 

 no doubt had not seen tiie types. 



Tahanus oplus, ^^^j Walker, List Dipt, i, p. 175 (1818) [sine 

 descr.] ; Newman, Zoologist, viii. Appendix Ixx. (1850), 

 et List Dipt, v., Suppl. i. p. 255 (1854). 



Tabanus gravis, Hutton, Trans. New Z. Inst, xxxiii. p. 13 (1901). 



Male (type) from New Zealand (presented by Dr. A. 



