1142 
DIPTERA OF AUSTRALIA, 
Genus 49. Epicypta, Winn. 
Costal vein extending beyond the tip of the second longitudinal 
vein. Auxiliary vein incomplete, bent anteriorly. Petiole of 
the fork of the third longitudinal short. Apex of the inner 
marginal cell lying over the base of the second sub-marginal cell. 
Second sub-marginal cell and the second posterior cell stretched, 
almost equally long, the base of the latter lying under or before 
the base of the former. Fifth longitudinal vein rudimentary or 
entirely missing. Sixth longitudinal vein very large. 
Genus 50. Mycothera, Winn. 
Tips of the costal and second longitudinal veins uniting at some 
distance before the apex of the wing. Auxiliary vein incomplete, 
Ijent anteriorly. Petiole of the third longitudinal fork short. 
Apex of the inner marginal cell lying over the base of the second 
sub-marginal cell. Branches of the fourth longitudinal vein a 
little inclined towards one another at the tips. Fifth longitudinal 
vein incomplete. Sixth longitudinal vein stout. 
C. Tvjo oeelliy one on the inner border of each of the 
compoiind eyes. 
Surface of the loing microscopically pubescent. 
Costal vein not extending beyond the tip of the second 
longitudinal vein. 
Sub- costal cross-vein missing. 
Genus 51. Mycetophila, Meig. 
Auxiliary vein incomplete, bent anteriorly. Apex of the inner 
marginal cell lying over the base of the second sub-marginal cell. 
Fork of the third longitudinal vein with a very short petiole or 
almost sessile. Base of the second posterior cell before, under or a 
little beyond the base of the second sub-marginal cell. Branches 
of the foui’th longitudinal fork inclined to one another towards 
their tips. Fifth longitudinal vein incomplete, broken oflf before 
the base of the second posterior cell or disappearing. Abdomen 
of the with six segments. 
