SPECIES OF TABANUS. — PART I. 283 



dorsum of thora.i: and abdomen clothed with minute, appressed, (/listeuim/, ockre- 

 yelkno or yelloioish hairs, intermixed with black hairs, scutellum clothed mainly 

 icith tdai'k hairs ; legs black or clove-lmnon, tibiae, except tips {and in case of front 

 pair extreme base and greater part of under surface) cream-coloured, and clothed 

 with short, glistening white hair. 



Head 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 ; frontal 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 ; pialpi 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 joint 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. Ahdomen : hind margins of second and following- 

 segments on dorsal side raw-umber-coloured ; ventral surface of first four segments 

 slate-grey, (jlothed with minute, appressed, glistening whitish hairs, ventral 

 surface of last three segments blackish slate-coloured, that of 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, buff, or raw-umber-coloured. Wings 

 faintly tinged with smoke-grey ; stigma elongate, light mummy-brown or raw- 

 umber-coloured, sometimes paler ; veins mummy-brown. Squamae 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 ; Northern Rhodesia ; German East 

 Africa : type from Fort Johnston, South Nyasa, Nyasaland Protectorate, 

 alt. 2,000 ft., 20. iii. 1910 {Dr. A. H. Barclay : presented by the Entomological 

 Research Committee) ; two Q Q from the Zomba District, Nyasaland Protecto- 

 rate, 1909 (presented by Dr. S. K. N orris) ; 1 Q from the vicinity of the Livilezi 

 River, South Nyasa, Nyasaland Protectorate, 2. ii. 1910 {Dr. J. B. Davey : 

 presented by the Entomological Research Committee) ; 5 Q Q from the Feira 



