20 



E. W. Ferguson: 



a series of median triangular spots on each segment, second seg- 

 ment with sides and basal border pale; pubescence black on. 

 dark portions, bright creamy almost golden on pale areas and 

 segmentations. Venter light yellowish brown with bright semi- 

 erect creamy pubescence. 



Legs with femora blackish, tibiae yellowish brown, and tarsi 

 infuscate. 



Wings hyaline, the costal cell, extreme base and cross veins- 

 very lightly suffused with brown, stigma brown, conspicuous ;: 

 small appendix present. 



Long: — 10.5 mm., width of head 4 mm., wing 9 mm. 



$ Resembies male; forehead moderately broad, wider anter- 

 iorly than at vertex, densely covered with yellowish grey tomen- 

 tum, brownish in centre; callus pear shaped, varying in shape 

 and width. Palpi with second joint rather long, curved, rather 

 slightly thickened at base. 



Hab. : — Tasmania, Bream Creek (G. H. Hardy, 18/2/18); 

 Wedge Bay (G. H. Hardy, 28/2/18) ; S. Bruni Is. (Dr. Clarke,. 

 Jan., 1916). 



The series before me shows great variation in the colouring of 

 the abdomen ; in many the dark markings on the abdomen are 

 reduced to little more than a basal spot. 



From the $ of T. brisbanensis ( = T. regis-geor-gii) the pre- 

 sent species differs in the more finely facetted eyes and in the 



■ -iiiUiu' 



~^ 



Fig. 2. Fig. 3, 



Text figure 2. Tabanus regis-gcorgii, Macq., ? head and 



antenna. Specimen from Kendall, New South Wales. 

 Text figure 3. Tabanus diemanensis, n. sp., 2 head and 



antenna. 



