BY ARTHUR WHITE. 181 



with black hairs above, instead of being entirely yellow, 

 and thorax with two instead of one median stripe. 



N. hrunnens occurs commonly settled on roads and on 

 open hillsides. My dates range from December 19 to 

 January 25. It also occurs in New South Wales. 



39. A s I L u s, L. 



Large, brightly-coloured flies; abdomen long and slen- 

 der; ovipositor conical, and not laterally compressed. 



Face somewhat projecting ; moustache fairly large, but 

 not nearly reaching to the antennae. Antennse rather 

 longer than the head, the first joint two or three times the 

 length of the second, the third about equal tc, or some- 

 times distinctly shorter than, the first two joints together,. 

 and provided with a long slender style, which is about 

 equal in length to the third joint. Thorax with short 

 pubescence anteriorly, long bristles posteriorly. Abdomen 

 long and slender, as a rule nearly bare, but occasionally 

 hairy ; weak lateral bristles sometimes present ; genitalia 

 of male large and globose, and broader than the preceding 

 abdominal segment; ovipositor of female conical and not 

 laterally compressed. Legs rather long, all joints bearing 

 bristles. Wings large, the costal portion frequently rilled ; 

 cubital fork large and embracing the wing-tip, second pos^ 

 terior cell usually encroaching on the first posterior cell, 

 fourth posterior and anal cells closed; wings usually tint- 

 ed with brown or black, but never banded. 



Of this genus three species — A. alcetus, A. Sydney ensisy 

 and A. discufiens — have been recorded from Tasmania, but 

 the occurrence of the two last, which are New South Wales 

 species, requires confirmation. 



Table of the Tasmanian Species of Asilus (including 

 the doubtful species). 

 1. Abdomen black, clothed with long yellow pubes- 

 cence. DiscuTiENs, Walk. 

 Abdomen bare. 2" 

 '1. Abdomen bright fulvous ; slender species. 



Sydneyensis, Macq. 

 Abdomen grey ; robust species. Alcetus, Walk. 



Asilus alcetus, Walk. 



Thorax black, with two median stripes, and sides bright 

 yellow; abdomen 3^ellowish-grey, robust, with white and 

 black side-bristles; femora and tibiae red; knees and 

 tarsi black. 



Length. Male, 17 mm.; female, 19 mm. 



Hab. Mangalore. 



