Australian Fruit Flies — Hardy 
133 
Fig. 7. Dacus {Hemizeugodacus) algaiae n. sp.: a, wing of male; b, female ovipositor, full length; c, apex of 
ovipositor. 
are no apparent preapical setae as in other 
Dacinae, Under high-power magnification it 
appears that there are three pairs of very tiny 
setae located about 0.09 tnm. from the apex 
of the ovipositor. In the specimens studied 
these could not be clearly defined even under 
oil immersion. The inversion membrane 
(segment 8) is about 1.7 mm. long by 0.3 to 
0.4 mm. wide at the broadest point. The 
rasper extends to within about 0.58 mm. from 
the base of the segment. The scales of the 
rasper are blunt, mostly rounded at their 
apices, and not drawn out into points. The 
basal segment of the ovipositor is about 1.4 
mm. long by about 1.0 mm. wide at its 
broadest point. The spiracles are about 0.5 
mm. from the base of the segment. 
Length’. Body, 6. 2-7.0 mm.; wings, 5.9- 
6.6 mm. 
Holotype male, allotype female, and 18 
