igii.] G. RiCARDO: Revision of the species of Tahanus. 141 



vertex. Length of male type 14 mm., of female type 19 mm., 

 the other males 17 — 19 mm. 



9 . Face covered with gre^^ish tomentum, pubescence and 

 beard whitish. Palpi yellow with longer slender point, and a few 

 black hairs. Antennae reddish yellow, the first two joints with some 

 black hairs, the third broad at base, deeply incised, with a distinct 

 tooth. Subcallus and forehead same colour as face, the latter with 

 some black pubescence, almost parallel, about five times as long 

 as it is broad; the frontal callus reddish brown, almost square, not 

 reaching the eyes, posteriorly narrower with a short lineal extension. 

 Thorax dull chamois-leather coloured, with some greyish tomentum, 

 no stripes visible, a few 3'ellowish and black hairs visible on dorsum, 

 shoulders pale reddish with black pubescence ; breast covered with 

 grey tomentum and with greyish white pubescence , tufts of white 

 hairs round base of wing; scutelltmi same colour as thorax, but 

 with whitish grey tomentum on its posterior border. Abdomen 

 reddish yellow, black at apex, the spots most distinct in the second, 

 third and fourth segments, pubescence black but very scanty and 

 short, the segmentations somewhat lighter ; under side similar with 

 more distinct white segmentations. Legs blackish, the tibiae reddish 

 with black pubescence, the pubescence on femora white and on 

 coxae, which latter are covered with grey tomentum, tarsi reddish 

 brown with black pubescence. Wings with a dark l^and across the 

 middle of wing, similar to that of Tabanus optatiis. 



cf . Similar, the thorax rather darker in colour. The eyes 

 with large facets on upper part , the small ones attaining the vertex 

 as a narrow border. 



Tabanus flexilis, cf 9 , Walker. 



Proc. Liifli. Soc, iv, p. 104 (i860) ; v, p. 104 (1861). 



Tabanus pictipcnnis, 5 , v. d. Wulp, Tijd. v. Entom., xi, 

 p. 100, pi. iii, figs. I, 2 (1868); nee vandcrioulpi, Osten Sacken. 



Type rf from Celebes. 



Type 9 from Macassar, Celebes (A. R. Wallace), and others 

 from Manado, Celebes, all in Brit. Mus. coll. 



This species, though as yet only recorded from Celebes, is 

 included here owing to the great similarity to it of Tabanus 

 vanderii'ulpi , Osten Sacken, from the Philippines. 



From the figure and the description of van der Wulp's there is 

 no doubt he was redescribing a specimen identical with Walker's 

 species, both from the same locality. His description is given, as it 

 is sufficient for identification, of the female only however, as he did 

 not know the male. 



9. Ochraceous. Forehead very narrow with a Ijlacki'^h median 

 line ; eyes naked ; antennae testaceous ; the anterior margins of 

 the abdominal segments brown ; legs blackish ; wings with two 



