BY ARTHUR WHITE. 200 



Male and female. Thorax brownish-black, with dull 

 white or yellowish-white pubescence at sides ; scutellum 

 similarly coloured, without any marginal bristles. Abdo- 

 men brownish-black, with short, depressed, white and yel- 

 low pubescence disposed in bands, which becomes very 

 quickly denuded ; base oi abdomen fringed with clear white 

 hairs on each side. Leg^ with femora black or brownish- 

 black, tibiae black or light brown, tarsi black. Wings ab- 

 solutely clear, bright an».l glistening. 



This species may be easily recognised by its small size 

 and perfectly clear wings ; the only species with which it 

 can be confused is A. nigricof^ta, but the latter species has 

 the long pubescence at the ^idi^s of thorax tawny instead of 

 white. 



A. minor is a fairly common species, and is probably 

 generally distributed. My dates range from January 11 

 to March 1. 



Anthrax nigricosta, Macq, 



Wings practically hyaline, but a little darkened along 

 the course of the closely adjacent mediastinal and subcostal 

 veins; pubescence at sides of thorax fulvous; abdomen 

 with a w^iite band on the seco.id segment ; a species that 

 varies very greatly in size. 



Length. Male and female, 5-8 mm. 



Hab. Generally distributed in Tasmania, Victoria, 

 South Australia, and New South Wales. 



Male. Eyes most closely approximated in front of the 

 ocellar tubercle. Face narrow, black. Front black, with 

 brown and white pubescence around the base of the an- 

 tennae. Antennae black. Thorax brownish-black, with 

 long fulvous pubescence in front and at sides; scutellum 

 similarly coloured, with black marginal bristles. Abdo- 

 men black, with a white pubescent band on the second 

 segment, which is usually visible even in denuded speci- 

 mens); remainder of dorsum with short white and brown 

 pubescence, which falls off very readily ; the first segment 

 has long tawny pubescence at sides, the second with long 

 white pubescence at sides ; remaining segments and apex 

 with long scattered black hairs. Legs black, the femora 

 frequently yellowish beneath. Wings hyaline, but fre- 

 quently a little darkened along the course of the closely 

 adjacent mediastinal and subcostal veins; base of wings 

 yellow. 



Female resembles the male very closely, but the eyes 

 are more widely separated. 



