SPECIES OF TABANUS.—PART I. 285 
dorsum of thorax and abdomen clothed with minute, appressed, glistening, ochre- 
yellow or yellowish hairs, intermixed with black hairs, seutellum clothed mainly 
with black hairs ; legs black or clove-brown, tibiae, except tips (and in case of front 
pur extreme base and greater part of under surface) cream-coloured, and clothed 
with short, glistening white hair. 
Hlead grey (subcallus when denuded shining mummy-brown), face, jowls, and 
basioccipital region clothed with whitish hair; front of moderate breadth, inner 
margins of eyes bordering it parallel, vertex and rather less than middle third of 
front clothed with minute black hairs, space on each side of and immediately 
above callus, and between the two patches of black hairs just mentioned, clothed 
with minute white hairs ; /ronial callus mummy-brown or russet-brown, extending 
nearly from eye to eye, roughly ovate in outline, with its lower margin flattened 
and its upper extremity produced in middle line into a clove-brown or dark-brown 
ridge, which is usually low and rounded off rather than sharp ; palp? dark grey, 
clothed on outer side with whitish hair, terminal joint acuminate, moderately 
broad at base ; first and second joints of antennae cinnamon, clothed with black 
hair, base of third joint chestnut-brown or cinnamon-rufous, remainder of 
expanded portion of third joint dark brown, terminal annuli clove-brown, 
expanded portion of third jot of moderate breadth, annulate portion of third 
joint in length equal to about four-fifths of expanded portion. Thorax: pleurae 
and pectus grey, clothed with whitish hair; dorsum on and near front margin 
with commencements of two light grey, admedian, longitudinal stripes, sometimes 
also in same region with a trace of a much narrower median stripe of same 
colour ; swelling in triangular depression at each end of transverse suture clothed 
with black hair, postalar calli and area immediately above base of each wing 
clothed with whitish hair. Abdomen: hind margins of second and following 
segments on dorsal side raw-umber-coloured ; ventral surface of first four segments 
slate-grey, clothed with minute, appressed, glistening whitish hairs, ventral 
surface of last three segments blackish slate-coloured, that otf last segment 
clothed entirely with erect black hair, ventral surface of antepenultimate segment 
clothed like preceding segments, that of penultimate segment clothed partly with 
black partly with glistening white hair ; hind margins of ventral plates of second 
to sixth segments inclusive cream-buff, buif, or raw-umber-coloured. Wings 
faintly tinged with smoke-grey ; stigma elongate, light mummy-brown or raw- 
umber-coloured, sometimes paler ; veins mummy-brown. Syuamae light sepia- 
coloured, borders darker. Halteres isabella-coloured, base of knobs dark brown. 
Legs: coxae grey, clothed with whitish hair; distal third of front tibiae black, 
extreme base of front tibiae and greater part of under surface above distal third 
clove-brown ; tips of middle and hind tibiae clove-brown or dark brown ; front 
tarsi somewhat enlarged and their third and fourth joints expanded. 
NYASALAND ProTEcTORATE; NortrHern Ruopesta; GERMAN East 
AFRICA: type from Fort Johnston, South Nyasa, Nyasaland Protectorate, 
alt. 2,000 ft., 20. in. 1910 (Vr. A. H. Barclay: presented by the Entomological 
Research Committee) ; two OQ Q from the Zomba District, Nyasaland Protecto- 
rate, 1909 (presented by Dr. S. K. Norris); 1 Q from the vicinity of the Livilezi 
River, South Nyasa, Nyasaland Protectorate, 2. 11. 1910 (Dr. J. B. Davey : 
presented by the Entomological Research Committee); 5 QQ from the Feira 
