814 AUSTRALIAN TABANID^, i., 



clothed with grey hairs; spurs conspicuous on the mid-tibiae, 

 minute on the hind. 



Hah. —Thirty miles N.E. of Darwin, Northern Territory (G. 

 F. Hill; No.lOO). 



This is a very distinct, and Tabanus-like species, and quite 

 unlike other Australian species in general appearance. 



SiLVIUS FULVOHIRTUS, Sp.n. 



9. Length, 11-5; width of head, 4; width of front at vertex, 0-6; 

 length of wing, 9 mm. 



Head with the front golden-yellow; subcallus buff; face light 

 buff, cheeks pale creamy; beard grey; frontal callus pale lemon- 

 yellow, pear-shaped, tumid, with a yellow, lineal extension reach- 

 ing the ocellar triangle, the latter clad with numerous, fairly 

 long, black hairs; ocelli black; antennae with first two segments 

 bright golden, with scattered, black hairs, and an apical fringe, 

 third segment testaceous; palpi orange, with minute, black hairs; 

 eyes black (green when alive), their inner margins converging 

 towards the base. 



Thorax yellow, clothed with short, appressed, yellow hairs; 

 scutellum yellow, clothed with erect, yellow hairs, ground-colour 

 of both black; pleurae grey. 



Abdomen with the first two segments pale tawny, third and 

 fourth dark brown, fifth and sixth dusky, posterior margins 

 paler in segments three to the apex; venter similar to dorsum. 



Legs with the coxae and trochanters greyish, clothed with 

 fairly long, grey hairs; femora tawny, clothed with grey hairs, 

 the apical third of the first with black hairs; tibiae brown, apices 

 dark brown; tarsi black, tarsi and tibiae clothed with black 

 hairs; mid-tibial spurs black, prominent, hind inconspicuous. 



Wings faintly dusky; veins brown; anterior branch of third 

 long vein with a small appendix, stigma brown, faintly yellow on 

 the edge at apex; squamae orange; halteres-stems orange, knobs 

 brown. 



Uah. — Townsville, Queensland (F. H. Taylor; January, 1914). 



