206 HYMENOPTERA. 



Paracolletes mimulus sp. nov. 



9 . Length about 10 mm. ; almost exactly like P. melbournensis , 

 but smaller and less robust, with the tibial scopa of hind legs white in 

 front, yellowish behind, wholly pale except some fuscous hair sur- 

 rounding the knee-plate ; stigma and nervures clearer ferruginous, 

 second submarginal cell smaller ; flagellum ferruginous beneath except 

 at extreme base; hair of vertex pale ochreous ; hind basitarsi, and 

 small joints of all tarsi, ferruginous; hair of thorax above ochreous 

 or pale fulvous, without fuscous; abdomen with golden tints. The 

 transverse keel on the blue-green area of metathorax is distinct. 



This is another member of the group just referred to, very 

 close to the others but apparently separable. No doubt 

 these allied forms have different times of flights or visit dif- 

 ferent flowers. 



Hab. — Victoria (C. F. ; Turner collection). British Mu- 

 seum. 



The species of Paracolletes discussed in this paper may be 

 separated thus : 



Postscutellum with a process 1. 



Postscutellum unarmed 2. 



1. Postscutellum process simple tlentiger Ckll. 



Postscutellum process bidentate vig'ilans (Sm.). 



2. Abdomen red fimbriatiims Ckll. 



Abdomen black or dark brown, not metallic 3. 



Abdomen metallic, bluish or greenish, blue or green 5. 



3. Scutellum and postscutellum appearing yellow from a patch of 



dense hair flavomaculatus Ckll. 



Thorax not thus ornamented 4. 



4. Hair of head and thorax black and white. 



argentifrons (Sm.) var. a. 

 Hair of head and thorax bright fulvous red...waterhousei Ckll. 



5. Apex of abdomen covered with bright fulvous hair...tunieri Ckll. 

 Apex of abdomen without bright colored hair 6. 



6. Abdomen olive-green, sometimes with strong brassy tints 7. 



Abdomen bluish or purplish or blue-green, often dark 9. 



7. Scopa of hind tibia almost entirely pale ; no dark hair on head or 



thorax above mimulus Ckll. 



Scopa of hind tibia with a dark fuscous band extending its whole 

 length ; vertex with dark fuscous hair 8. 



8. Larger, length about 11 mm melbournensis Ckll. 



Smaller, thorax above with less dark hair. 



semipurpureus (Ckll.) var. a. 



9. Tegument of thorax black providus (Sm.) var. a. 



Tegument of thorax matallic green or bluish 10. 



