TWO NEW SPECIES OF TABANUS FROM THE ANGLO- 
EGYPTIAN SUDAN. 
By Ernest HK. AUSTEN. 
(Published by permission of the Trustees of the British Museum.) 
The types of the species described below have been presented to the British 
Museum (Natural History) by Mr. H. H. King, Government Entomologist, 
Anglo-Egyptian Sudan, by whom coloured figures of both species will shortly be 
published in the forthcoming Fourth Report of the Wellcome Tropical Research 
Laboratories, Khartoum. 
Genus Tasanus, Linn. 
Tabanus camelarius, sp. n. 
3 Q.—Length, J (1 specimen) 12°5 mm., © (2 specimens) 11°6 to 12°8 mm. ; 
width of head, ¢ 4:25 mm., © 3°75 to just under 4 mm.; width of front of Q at 
vertex 0°6 mm.; length of wing, J 8°75 mm., Q 8°25 to 84 mm. 
Somewhat narrow-bodied, elongate species ; dorsum of thorax mouse-grey™ ind , 
blackish slate-coloured in Q, and in both sexes longitudinally striped with light grey, 
though less distinctly in 3 than in Q; dorsum of abdomen dark brown in 3, clove- 
brown or blackish brown in Q, and in both sexes with three longitudinal stripes, 
which are smoke grey in SG and whitish grey in Q ; one stripe is median and 
continuous ; midway between this and lateral margin on each side is a stripe, which 
is largely composed of disconnected, longitudinally elongate spots ; venter light grey, 
with a broad, blackish, longitudinal stripe, interrupted on hind margins of segments 
and in Q very conspicuous, in 3 much less distinet and inconspicuous unless viewed 
Srom behind ; femora slate-grey, with a whitish grey bloom, tibie partly cream-buff, 
front tarsi entirely black, middle and hind tarsi blackish brown, except proximal 
two-thirds of first joints, which are cream-buff. 
Head: frontal triangle in 3 drab-grey, crossed by an ill-defined brownish band 
on a level with and just below upper margin of lower third of eyes; front in Q 
grey (drab-grey between base of antenne and frontal callus), clothed on upper 
half with minute black hairs ; face and jowls whitish grey in both sexes and 
clothed with white hair, in Q an indistinct dusky mark between base of antenna 
and eye on each side; eyes in ¢ (dried specimen) with small facets (occupying 
lower third and posterior border) dark brown, and with the transversely fusiform 
area occupied by the large facets, which is divided medially by the junction of 
the eyes, drab above and on each side, and crossed horizontally by a curved, 
dark brown band, which does not reach the postero-lateral margins of the area, 
and below the admedian two-thirds of which the large facets are paler; eyes in 
Q (dried specimen) with two narrow, dark bands across centre; in Q, front 
moderately broad (inner margins of eyes almost parallel, converging very slightly 
* For names and illustrations of colours see Ridgway, “ A Nomenclature of Colors for 
Naturalists” (Boston: Little, Brown & Company, 1886). 
