GERTRUDE RICARDO. DIPTEREN II. 393 



lineal extension. Thorax reddish brown with traces of two grey tomentose stripes and 

 scattered white hairs chiefly on anterior half of dorsum and at sides, a few black hairs 

 intermixed, shoulders reddish* with black pubescence ; breast covered with grey tomentum 

 and with white hairs. Scutelhim reddish with grey tomentum. Abdomen blackish brown, more 

 reddish brown on first two segments, the anterior border of second segment with a grey 

 tomentose band, the white spot on its posterior border, the three following segments with 

 similar large médian spots, pubescence on them white, elsewhere black, both very short and 

 scanty, sides of abdomen with white hairs, black on the last two segments; underside brown 

 with narrow white haired segmentations. Legs reddish, tarsi darker, pubescence largely white. 

 Wings clear, tinged brown at apex, stigma yellowish brown, veins brown, appendix présent. 



9. Tabanus sylvioides Walker. 



Proc. Linn. Soc. London, VII, p. 206 (1864). 

 Type (a female) from the Island of Misol. 



There are no spécimens in the collections I hâve seen, of this species, which is reddish 

 brown with paler segmentations on the abdomen, dark pitchy brown on the underside. 

 Antennae and legs reddish yellow. Forehead almost wholly occupied by the large frontal 

 callus. Length 13 m. m. 



Face covered with pale grey tomentum and a few whitish hairs. Palpi pale yellow 

 with black pubescence, slender, ending in an acute point. Beard whitish. Antennae reddish 

 yellow, darker at apex, the first two joints with black hairs, the third slender with a very 

 small tooth. Subcallus covered with yellowish brown tomentum. Forehead almost parallel, 

 about five times as long as it is broad, the frontal callus shining, yellowish, reaching the 

 eyes, protubérant, square with the posterior angles rounded-, the extension broad, almost 

 reaching the vertex and ending in a short fine point, the sides of forehead with grey tomentum. 

 Thorax, scutellum and abdomen testaceous with traces of grey tomentum, the segmentations 

 of abdomen distinct, pubescence on them yellowish, elsewhere black; underside of abdomen 

 pitchy brown with pale segmentations. Legs a shade darker than the upperside of abdomen. 

 Wings deeply tinged with yellowish brown on the foreborder, and along most of the veins. 



10. Tabanus metallicus n. sp. 



Type (female) in Brit. Mus. Coll. from Iwaka river, Dutch New Guinea (A. F. R. Woollaston), 

 British Ornithological Expédition 191 1; and 2 females from Alkmaar, New Guinea in 

 Dr. Lorextz Coll. 



A blue metallic species, a faint yellow band on the second segment, or almost the 

 whole segment yellowish. Legs black with partly white tibiae. Length 8 — 9 m. m. 



Face covered with grey tomentum, brownish in the centre. Palpi reddish yellow with 

 short black pubescence and longer black hairs on the first joint, narrow, slender, ending in 

 an obtuse point. Beard bright yellow (in the other females white), a few brown hairs above. 

 Antennae reddish yellow, darker at the apex, the first two joints with black hairs, the third 

 with a distinct though small tooth. Subcallus shining brown. Forehead same colour as face, 

 parallel, nearly four times as long as it is broad anteriorly with a long cylindrical brown 

 Nova Guinea. IX. Zoologie. 51 



