GERTRUDE RICARDO. DIPTEREN II. 389 



The following species hâve been described from the Moluccas and may very probably 

 be found in New Guinea, in the future. 

 Tabanus cinnamoneus Doleschall. 

 „ erythrocephalus v. d. Wulp. 

 „ furunculigenus Doleschall. 

 „ obscuratus Walker. See Ricardo Praeda Itineris L. F. de Beaufort. VII. Bijdragen 



tôt de Dierkmide 1912 p. 71. 

 „ triangularis v. d. Wulp. 

 T. cohaerens Wlk., is also found hère, in Ceram. T. flavipennis n. sp., is added. RlCARDO 

 1. c. p. 72. T. furunculigemts Dol., may possibly be the same as T. obscuratus Wlk., but the 

 descriptions of the former are two meagre for identification. 



1. Tabanus leucopterus v. d. Wulp. 



Tijd. v. Entom. XI, p. 98 (186S). Tabanus caesius, Walker, List Dipt. Brit. Mus. I. p. 180(1848). 

 Two females from New Guinea (H. Kùhn) 1901 in Dr. Kertész's Coll. 



Thèse spécimens answer to the description given by V. D. Wulp, his type (a female) 

 came from the Aru Islands and measured 12 mm. 



A species in the group containing examples with no callus on the forehead. 



A greyish coloured species, with yellow antennae, legs, and segmentations of abdomen. 

 The forehead very broad, about a fifth of the breadth of head, narrowest at the vertex. The 

 pubescence on dorsum of abdomen is black, on the underside largely whitish. Wings clear, 

 with appendix. 



The type of Tabanus caesius Wlk., is from an unknown locality, from the descrip- 

 tion by V. D. WuLP ■ and examination of WALKER's type, I hâve no doubt it is the same as 

 V. D. Wulp's species. 



2. Tabanus cohaerens Walker. 



Proc. Linn. Soc. VIII, p. 188 (1865) {cochaerens Kertész Cat. 1908). 

 Atylotusî picticornis Bigot, Mem. Soc. Zool. de France, V. p. 671 (1892). 

 Aty lotus alfourensis Bigot, Le. p. 762. 



Walker's Type (female) from New Guinea. 



Bigot's Type of picticornis now headless is no doubt identical with his type alfourensis, both 

 from New Guinea. 



A long séries of females from Lorentz River, Etna Bay (Dr. Koch), Sabang, Regen Island, 

 Rivierkamp, Bivak Island. 



A small species with a grey médian stripe on the reddish yellow abdomen. Antennae 

 and legs yellowish. Length 12 — 13. 



Face covered with grey tomentum and a few white hairs on the cheeks. Palpi yellow 

 with thick black pubescence, fairly stout at base ending in a point. Beard white. Antennae 

 bright reddish yellow, darker at apex, with a distinct tooth on third joint, the first two joints 

 with some black hairs. Forehead narrow, covered with brownish tomentum, about eight times 

 as long as it is broad and very slightly narrower anteriorly, the frontal callus narrow, not 

 reaching the eyes, brown, shining, with a fairly stout lineal extension. Thorax blackish brown, 

 with greyish tomentum and appressed fulvous and black pubescence, on sides with long black 

 hairs ; breast and sides covered with grey tomentum and white pubescence. Scutellum same 



