1136 
DIPTERA OF AUSTRALIA, 
below it. Anterior branch of the fourth longitudinal vein 
detached at the base. Base of the second posterior cell situated 
a little before the origin of the third longitudinal vein. Wing 
microscopically pubescent. Abdomen with eight segments. 
Genus 30. Leia, Meigen. 
Costal vein extending considerably beyond the tip of the second 
longitudinal vein. Auxiliary vein large, ending in the costa. 
Sub-costal cross-vein missing. Marginal cross-vein situated far 
beyond the middle of the first longitudinal vein. Inner marginal 
cell much lengthened, its apex situated about over the middle 
of the wing. Anterior branch of the third longitudinal vein short, 
fourth longitudinal vein long, the root of both missing. Base of 
the second posterior cell lying about under the middle of 
the inner marginal cell. Surface of the wing microscopically 
pubescent. Abdomen with six segments. 
Genus 31. Ateleia, gen.nov. 
Costal vein extending far beyond the tip of the second longi- 
tudinal vein. Auxiliary vein joining the costa much before the 
origin of the third longitudinal vein. Sub-costal cross-vein 
situated about the middle of the auxiliary vein. Anterior 
Vjranches of the third and fourth longitudinal veins both detached. 
Marginal cross-vein situated near the tip of the first longitudinal 
vein, consequently the inner marginal cell very long. Base of 
the second posterior cell situated much before the origin of the 
third longitudinal vein. Fifth longitudinal vein distinct. Sur- 
face of the wing microscopically pubescent. Abdomen with six 
segments. 
Genus 32. Coelosia, Winn. 
Costal vein extending beyond the tip of the second longitudinal 
vein. Auxiliary vein large, ending in the costa. Sub-costal cross- 
vein missing. Inner marginal cell somewhat lengthened, its apex 
lying almost over the base of the second sub-marginal cell. 
Fork of the third longitudinal vein long, its petiole somewhat 
