476 Mv. G. Meade-Waldo on 



5. f Abdomen uuicolorous ; scopa bright ful- 



I vous . , 6. 



j Median segment and abdomen basally 

 1 with white pubescence. L. 14-15 mm. 7. 

 1 Abdomen otherwise coloured ; scopa 

 [_ pale ; wings hyaline 9. 



6. ("Abdomen covered with bright fulvous 

 I pubescence ; wings fuscous. L. 16 



J mm. (Australia.) ustulata. 



I Abdomen black, with violet iridescence ; 

 I wings fusco-hyaline. L. 14 mm. 



!^ (Richmond River.) pictiventris. 



Wings dark fuscous ; scopa black. 



(Champion Bay.) fumipennis. 



Wings not dark fuscous ; scopa white , . 8. 



8. f Wings wholly dark fusco-hyaline, abd. 

 I tergite 3 black. ("New Holland."). . lucidiventi-is. 



■i^ Wings with basal half hyaline, fuscous 

 I apically ; abd. tergite 3 laterally with 

 l^ white pubescence. (Champion Bay.) fabricator 



9. r Abdominal tergites with apical fasciae of 

 pubescence 13. 



Abdominal tergites 1-3 with apico-lateral 

 . marks of pale pubescence ; abd. ter- 

 j gites 5 and 6 with golden-yellow or 



fulvous pubescence 10. 



I Abdominal tergites 1 and 2 black, 3-6 



1^ ferruginous, L. lOmm. (Queensland.) calida. 



10. fFace sparsely clothed with white pubes- 



I cence ; slender insects 21. 



<J Face clothed with golden pubescence ; a 

 j robust insect. L. 13 mm. (Cham- 

 [ pion Bay.) sexmaculata. 



11. f Apex of clypeus simple. L. II5 mm. 



J (Tasmania.) leucopyga, 



i Apex of clypeus with a small tubercle 



( or tubercles 12. 



12. f Apex of clypeus with 2 small tubercles ; 

 j abd. tergite 4 with narrow whitish- 



J yellow fasciae. L. 11 mm. (Adelaide.) eriadlformis. 

 ] Apex of clypeus with a small median 

 I tubercle ; no fascia on abd. tergite 4. 

 t L. 10 mm. (Western Australia.) . . ohlonga. 



13. fSides of face sparsely covered with white 

 pubescence, abdominal fascias narrow ; 

 smaller, more slender insects 16. 



•\ Whole face (including clypeus) covered 

 with dense ochraceous or fulvous 

 I pubescence, abdominal fasciae broader ; 



\ more robust insects 14. 



34. fFace densely covered with fulvous 



pubescence ; abd. tergite 5 partly and 



I 6 wholly covered with fulvous pubes- 



J cence. L. 12^ mm. (Western Aus- 



'^1 tralia.) chrysopyga 



I Face densely covered with ochraceous 

 I pubescence; abdomen vmicolorous, with 

 [^ ochraceous fasciae. L. 13 mm 15. 



