GERTRUDE RICARDO. DIPTEREN II. 39I 



Face covered with whitish grey tomentum, vvith a few white hairs in the centre and 

 some brown hairs on the cheeks. Beard white. Palpi yellowish, but appearing dark, being 

 covered with grey tomentum and with black pubescence, fairly stout at base, ending in a 

 point. Antennae dusky black, the third joint with a prominent tooth, the first two joints with 

 black pubescence. The subcallus a little darker than the face, some yellowish brown tomentum 

 near the base of antennae and on upper cheeks. Forehead narrow, about eight times as long 

 as it is broad anteriorly, where it is slightly narrower than at vertex. Frontal callus reddish 

 brown, clubshaped with a linear extension, the forehead covered with grey tomentum, some 

 black hairs at vertex. Thorax blackish brown covered with grey tomentum forming stripes, 

 and with appressed white or pale fulvous pubescence, the pubescence otherwise black, with 

 some white hairs near base of wings, sides with black hairs, breast sides grey with chiefly 

 white hairs. Scutellum same colour as thorax. Abdomen blackish, at base with some yellowish 

 brown tomentum, the first segment with a small white haired médian spot, the second third 

 and fourth with large triangular white tomentose spots, covered with white hairs, in a few 

 spécimens narrow segmentations of the some colour appear on some of the segments, the 

 whole dorsum covered with close thick black pubescence, which also appears on the sides 

 intermixed with some white hairs; underside blackish with grey tomentum on sides and 

 segmentations and with scanty black pubescence. Legs black, knees and tibiae an obscure 

 reddish brown, the femora with white hairs and grey tomentum below, pubescence elsewhere 

 black. Wings clear, a very faint yellowish tinge on the foreborder, stigma yellowish, veins 

 brown, a short appendix présent. 



5. Tabanus laetus de Meijere. 



De Meijere Nova Guinea V. Résultats Exp. Sci. Néerl. à la N. Guinée, Diptera, p. 74, fig. 5 (1906). 



The type (female) was described from New Guinea in 1906. A séries of females were collected 

 in this last expédition (1910) from Bivak Jsland (February), Heuvel Bivak (November), Alkmaar 

 (October), Rivierkamp (February), Etna Bay (Dr. Koch). 



It is a small brown species with pale scutellum and pale spots on the abdomen. The 

 forehead parallel, about six times as long as it is wide, with a large triangular frontal callus, 

 its linear extension rather stout, and reaching nearly to the vertex. 



6. Tabamis albithorax n. sp. 



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

 British Ornithological Expédition; and a séries of females from Heuvel Bivak and Alkmaar, Dutch 

 New Guinea in Dr. Lorentz's Coll. 



A small blackish brown species with well marked médian white spots on the abdomen 

 and whitish bands on the thorax. Forehead wide with a large callus. Length 1 1 m. m. 



Face covered with whitish grey tomentum and with a very few white hairs. Palpi 

 very narrow and pointed similar to those of Tabanus laetus de Meijere, yellowish with dense 

 black pubescence. Beard silvery white. Antennae dull reddish brown, or blackish brown, the 

 first two joints with black pubescence, the third with a distinct tooth. Forehead dark yellowish 

 brown, broad, about five times as long as it is broad anteriorly, almost parallel, the frontal 

 callus pear shaped, not reaching the eyes, with a stout short linear extension, blackish in 



