EXPLANATION OF PLATE XXVII. 
Halobates whiteleggei, Skuse. 
Fig. 1. Larva (from dried specimen). 
„ 2. Larva (from spirit specimen). 
,, 3. Adult male. 
„ 4. Underside of body of adult male. 
„ 5. Adult female. 
„ 6. Anterior tarsus of male. 
„ 7- Intermediate tibia and tarsus of male. 
,, 8. Antenna of male. 
„ 9. Horn-like processes of second genital segment of male. 
„ 10. Genital segments of ^ale (from above). 
All greatly magnified and drawn from nature by Mr. G. H. Barrow, 
Australian Museum. Natural sizes denoted by indicators. 
