476 Mr. G. Meade-AValdo on 



o. f Abdomen uuicolorous ; scopa bright ful- 



I TOUS . , (3. 



j Median segment and abdomen basally 

 '] with white pubescence. L. 14-15 mm. 7. 

 1 Abdomen otherwise coloured ; scopa 

 (^ pale ; wings hyaline 9. 



6. f Abdomen covered with bright fulvous 

 I pubescence ; wings fuscous. L. 16 



J mm. (Australia.) ustulata. 



'] Abdomen black, with violet iridescence ; 

 I wings fusco-hyaline. L. 14 mm. 

 '^ (Richmond River.) pictiventris. 



7. I Wings dark fuscous ; scopa black. 



I (Champion Bay.) fumipennis. 



I Wings not dark fuscous ; scopa white , . 8. 



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



I tergite 3 black. (" New Holland. "j . . lucidiventris. 

 ■^ Wings with basal half hyaline, fuscous 

 1 apically ; abd. tergite 3 laterally with 

 l^ white pubescence. (Champion Bay.) fabricator 



9. f Abdominal tergites with apical fasciae of 



pubescence 13. 



I Abdominal tergites 1-3 with apico-lateral 

 J marks of pale pubescence ; abd. ter- 

 gites 5 and 6 with golden-yellow or 



fulvous pubescence 10. 



Abdominal tergites 1 and 2 black, 3-6 

 (^ ferruginous. L. 10 mm. (Queensland.) calida. 



10. rFace sparsely clothed with white pubes- 



cence ; slender insects 21. 



<( Face clothed with golden pubescence ; a 

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

 \ pion Bav.) sexmaculata. 



11. (Apex of dypeus simple. L. 11^ mm. 

 (Tasmania.) leucopyga. 



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 wbitish- 



J yellow fascise. L. 11 mm. (Adelaide.) eriadiformis. 

 "I Apex of clypeus with a small median 



I tubercle ; no fascia on abd. tergite 4. 



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



13. rSides of face sparsely covered with white 



pubescence, abdominal fasciae narrow ; 



I smaller, more slender insects 16. 



■{ Whole face (including clypeus) covered 



I with dense ochraceous or fulvous 

 pubescence, abdominal fasciae broader ; 

 [ more robust insects 14, 



14. fFace densely covered with fulvous 

 I pubescence ; abd. tergite 5 partly and 

 I 6 wholly covered with fulvous pubes- 

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



"^1 tralia.) chnjsopyga 



Face densely covered with ochraceous 

 I pubescence; abdomen unicolorous, with 

 t_ ochraceous fasciae. L. 13 mm 15. 



