48^ Miss G. Ricardu— .1 Beiisiun of 



I'udimentary end style. Forehead same colour as faoo. 

 Thorax black, reddish yellow on the dorsum, witli golden 

 tomentum, the spine reddish yellow ; scutellum black. 

 Abdomen the same width throughout ; the first segment and 

 anterior border of second blacky shining; the third with an 

 isosceles triangular black spot at each side, the apices ex- 

 tending nearly to the middle of the segment along the 

 ])osterior border; on the fourth there is a similar btit ill- 

 defined smaller spot in the female type, in the males the 

 sides of the fourth and fifth segments are narrowly black, 

 pubescence on dorsum chiefly fulvous, on the sides of abdo- 

 men black; underside wholly black; ovijjositor of female 

 short, fulvous ; genital organs of male small, almost hidden, 

 fulvous. Legs same colour as greater part of abdomen, the 

 coxpe and femora shining black, with ])lack pubescence. 

 Wings yellowish, with yellow veins tinged with grey at apex 

 and on inner border, all posterior cells except tlie first 

 widely open, the anal cell open, but very narrow, at border, 

 small transverse vein just beyond the middle of discal cell. 

 Halteres yellowish. 



The anteniKB in this species and in C. queenslandi have the 

 small style on the lower border of the third joint, and the 

 upper border is excised and armed with a small spine. In 

 the other species the end of joint seems broken off. Pro- 

 bably this characteristic will prove generic ; the genus, 

 however, is easily distinguished by the spine on thorax. 



Brachyrrhopola, Macquart. 



Dipt. Exot. Siippl. ii. p. ol (1847). 



This genus was formed by ^Facquart for his species 

 B. ruficornis, from Tasmania, to which, later, a second species 

 was added by Roder, originally named i)y Macquart Dusi/- 

 pogon maculinervis ; and Professor Roder added two new 

 species, one of which, however, is a synonym of a species 

 erroneously ])laced by ]\Iacquart under Codida, who also 

 had described one species eai'lier under Dasi/pogon which 

 belongs to this genus. 



The genus belongs to the group with a curved spine at 

 end of fore tibise, and is characterized by the club-shaped 

 abdomen and the wings with all posterior cells and the anal 

 cell open. Antenna hardly the length of head as ]\[acquart 

 states ; the first joint a little long, the second short, the 

 third three times as long as the first joint, nearly straight 

 above, a little convex bidow, and attenuated at the base : 

 Bigot in his description of the tvpe {sic) of B. 7nacuHnercis 



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