BY FREDERICK A. A. SKUSE. 57 



more or less distinct fork; no ocelli; first tarsal joint much 

 shortened. 



Genus 1. Heteropeza, Winn. 



Winnertz, Stett. E.Z. VII. 1846, p. 13 ; V. z.-b. G. Wien, 1870, 

 p. 4, pi. I. ; Schiner, Fauna Austr. II. 1864, p. 410. 



Antennse in the (J moniliforin, 2- + 9-jointed, in the ^ sessile, 

 2- + 8-jointed ; basal joint incrassate. Joints of the palpi of 

 unequal length. Legs short ; the third joint of the tarsi very 

 long, the fourth and fifth short. Wings almost bare, with two 

 longitudinal veins (PI. ii., fig. 1). 



Very few species are known ; others have proliably escaped 

 notice on account of their small .size. All but the following, I 

 believe, have been recorded from Europe. Although I have care- 

 fully searched for H. transmarina in the neighbourhood of Sydney, 

 my endeavour to find it, or indeed any other member of the genus, 

 has been hitherto unattended with success. 



1. Heteropeza transmarina, Schiner. 



Heteropeza transmarina, Schiner, Dipt, der Novara-Expedi- 

 tion, Zool. Theil. Bd. ii. p. 5, Taf. 1, fig. 1, 9. 



9. " Bright reddi.sh-yellow ; the thorax blackish ; the eyes 

 black ; the legs brownish-yellow, darker towards their extremity. 

 Abdomen proportionally very long and slender. Ovipositor of the 

 9 widely and very pointedly prominent, the first joint short, the 

 second the longest of all. Antennae brown, the first joint very 

 large and thick, the others sessile, shortly oval. Legs delicate 

 but distinctly hairy ; the femora rather robust ; the tibiiu long ; the 

 tarsi e.xceediugly short, consisting of four rudimentary joints, the 

 fifth apparently deficient ; the claws extremely small. VVings 

 scarcely liaired, not ciliated on the border ; the sub-costal (first 

 longitudinal) vein nearly reaches to the apex of the wing ; tlie 

 postical (second longitudinal) vein does not reach wing-margin. 



