230 Records of the S.A. Museum 



the basal deflection of R'^+'' strongly arcuated at origin ; inner end of cell first 

 M^ strongly arcuated; abdominal tergites dull yellow, the basal half of each 

 segment dark brown; base of the sternal valves of the ovipositor shiny black. 



$ Length, about 5 -8-6 -5 mm.; Aving, 7-7-4 mm. 



Rostrum and palpi dark brown, the former slightly elongate. Antennae 

 dark l)rown; flagellar segments raoniliform, each segment except the terminal 

 ones being broader than long, subdisciform, closely appressed to one another. 

 Head dark. Mesonotum dark brown (discoloured, in fresh specimens probably 

 covered with a light pollen). Pleura dark brown, pruinose. Halteres pale, the 

 base of the knobs brown, the apices yellowish. Legs with the coxae brownish- 

 yellow; trochanters brownish-yellow; legs short, femora slightly incrassated at 

 tips, hairy, reddish-orange in colour, the apical half more yellowish with two 

 narrow subterminal brown rings ; tibiae and basal three tarsal segments brownish- 

 yellow, the tips conspicuously blackened; segments four and five entirely black. 

 Wings with a yellowish tinge ; restricted brown markings as follows : at arculus, 

 origin of Rs, tip of Sc, along the cord and outer end of cell first M^ and at the 

 tips of the longitudinal veins; paler grey clouds at the stigma; a large blotch 

 about midway between arculus and the origin of Rs ; clouds near the outer ends 

 of cells second R^, R^, R^, second M- and M^; outer ends of the posterior and 

 anal cells indistinctly greyish ; veins dark brown, C, Sc, and R more brownish- 

 yellow. Venation : Sc extending to about opposite midlength of Rs, Sc^ some 

 distance from the tip of Sc^ the latter alone being longer than r; Rs and the 

 basal deflection of R^+^ strongly arcuated at origin, the latter about two-thirds 

 the former; inner end of cell first M- considerably arcuated, r-m being placed 

 beyond midlength of cell first M^; this latter cell about as long as vein M^+- 

 beyond it; basal deflection of Cu^ before the fork of M, about opposite the fork 

 of Rs; cell second A broad. Abdominal tergites dull yellow, the basal half of 

 each tergite dark brown; sternites yellowish; pleural membrane dull brown. 

 Ovipositor with the sternal valves long, straight, powerful, the apices acute, the 

 bases shiny black ; tergal valves small, acute. 



Hal). Tasmania: King Island (A. M. Lea). Type, I. 12139. 



DICRANOMYIA SEDATA sp. nov. 



Head grey; mesonotum brown; pleura obscure yellow with a narrow brown 

 longitudinal stripe; wings light grey with narrow seams and clouds along the 

 cord, outer end of cell first M- and origin of Rs ; vein Sc long, cell first M^ closed. 



6 Length, about 5-5 mm. ; wing, 5-4 mm. 



Rostrum light brown; palpi brown. Antennae dark brown (flagellum 

 broken). Head grey. Mesonotum brown (injured by the pin). Pleura obscure 



