GENERA. J 21 



Truncus subglobosus. 



uilte cruciato-incumbentes, planae.' 



Superiores subcuneiformes apicibus 



obliquis. 

 Inferiores hamulis instructse. 

 Pedes cursorii, anteriores intermediis, in- 

 termedii posterioribus breyiores. 

 Femora clavata. 



Tibiis subclavatae, trigonae, extrin- 

 seciis convexae, anticis et inter- 

 mediis apice spinula iinica, illarum 

 velata, posticis diiabus(o-), armatis. 

 Palmce basi strigile intus instructae, 



segmento circuli dempto. 

 Plantce, posticae praecipue, scopuld 

 densa intus vestitas. 

 Abdomen. Tergum aculeatis segmentis sex, marir, 

 bus plerumque septem (h). 

 Aculeus punctorius, subulatus, retractilis. 

 Obs. Corporis pili plumosi. 



Larva apoda, mollis, plicata, supra con- 



vexa, subtus planiuscula. 

 Pupa incompleta, folliculo inclusa. 

 Imago mellisuga, saepius pollinilega, in- 

 terdum cerifica. 

 That there is an essential distinction between 

 Mditta and Apis, the above characters will, I hope, 



{g) The posterior tibiae of all sexes of A. mellifica are with- 

 out spines. This is the only insect in the class Hymenoptera, 

 that I have examined, in which this defect occurs, 



(A) In the males of one family of tliis genus tlie seventh dor- 

 gal segment of the abdomen is usually obsolete. 



satisfac-^ 



