SOME BEES COLLECTED IN QVEENSLAND^COCKERELL. 



119 



3. Large species, at least 8 mm. long 

 Small species 



4. Area of metathorax strongly ridged or plicate 

 Area of metathorax not ridged 



5. Mesotliorax very shiny ; hind tarsi ferruginous 

 Mesothorax dullish ; hind tarsi not rod . . 



6. Al)domen entirely shining black 

 Al>domcn with more or loss red, or all I'ed 



7. S(igma dark 

 Stigma pallid 



8. Legs black ; area of metathorax shorter . . 

 Legs more or less reddish 



9. Mesothorax obscurely metallic 

 Mesothorax light green 



10. Larger, mesothorax green 

 Smaller, mesothorax blue . . 



1 1 . Base of abdomen red 

 Base of abdomen green 



. . 4. 

 . . 0. 

 H. eboracenaiK. 

 P. insciilptus. 

 H. spectilelliis. 

 H. srmipoHtits. 

 H. iirbaiius. 

 .. 7. 

 . . 8. 

 . . 9. 

 H. oxoHteUus, 

 H. brtsbane'nsis. 

 ..10. 

 .. 11. 

 H, erythrnrtis. 

 H. cri/thrurus v. alrocyaneiis. 

 H. eyrei. 

 H. rilnpennis. 



MEGACHILID.E. 

 Lithurgus atratiformis Ckll. Brisbane, Oct. 5, 1915. (210.) 

 Megachile simpliciformis n.sp. Stradbroke Island, Sept. 15, 1915. (211.) 



V- Length about 11 mm. ; like M. simplex Smith, but clypeus very densely and 

 finely punctured ; vertex more depressed, the head Uttle elevated above the eyes, 

 which are brown; clypeus emarginate in middle of lower edge, with a tuft of orange 

 hair showing in the emargination. Ventral scopa all white. 



CERATINID.E. 



Exoneura ploratula Cldl. Brisbane, Sept. 12. 1910. (215.) 



Exoneura aterrima t'kll. Brisbane, Feb. 15, 1916. (219.) 



This was described as a variety of E. bofanica Ckll., but I now think it must 

 be a distinct species. The specimen (219) is a male, and differs from the female by 

 the clypeus (except a very small mark on each lateral margin) and labrum entirely 

 white, the anterior tibia; and the basitarsi black or dark fuscous. 



Exoneura melsena n.sp. C'aloundra, Jan. 20, 1916. (214.) 



$• Length about 5 mm. ; black, similar to £. cf/crr/ma but differing thus : Face 

 entirely black ; wngs dilute reddish ; a bright ferruginous patch at each side of base 

 of first abdominal segment ; tibiaj largely red, but basitarsi dark. 



Exoneura gracilis n.sp. Brisbane, Feb. 8, 1916. (212.) 



$. Length about 4'5 mm. ; slender, black, shining ; face wholly black, labrum 

 clear ferruginous ; scape in front and flagellum beneath dull ferruginous : tubercles 

 white ; tegulse hyaline with a white spot ; wings hyaline ; stigma large, pale reddish, 



