208 Mr. T. D. A. Cockerel 1 on the 



Morgania carm/ex (Gerst.). 

 Omachthes carnifex, Gerst. 

 Cape of Good Hope. 



Mvrgania Jiistrio (Gerst.). 

 OnmchtJies histrio, Gerst. 

 Cape of Good Hope. 



Oxystoghssa decorata^ Smitli. 



Type ? . Jamaica. 



Second subniargiiial cell very narrow; eyes eniarglnate; hind 

 sj)ur of hind tibia strongly curved, simple. 



Rhathymus quadriplagiata^ Smitli. 



Mexico. 



This species shows an estraoidinaiy lesemhlance to ScoUa 

 guttata, Burm. Ashniead gives tlie maxillary palpi of Rha' 

 t/iymus as 4-jointed ; but this must be a slip of the pen, as 

 they are actually absent, as GerstaecUer and others have stated. 

 In JEuryiis funereus, Sm., which looks like Rhathymus atra, 

 Sm., they are 3-jointed (the first and third joints very sliort, 

 second very long), not 1-jointed as Smith states. This 

 observation is based on Smithes type. 



XXX. — The Ilulictine Bees of the Australian Region. 

 By T. D. A. COCKKRELL. 



The Halictine bees of Australia were studied and described 

 many years ago by Mr. F. Smith: since his death they 

 have received practically no attention ; and owing to the 

 brevity of the published descriptions and the complete 

 absence of tables for identification the recognition of the 

 species has seemed difficult. The following tables and notes 

 are based on an examination of Smithy's types in the British 

 Museum, and it is hoped that they will make it easier 

 for entomologists to further elucidate the subject. There 

 can be no doubt that any resident of Australia who will collect 

 and study these bees will find many new species. 



The following abbreviations are used: — (T.) = type speci- 

 men examined; s. m. = submarginal cell; r. n. = recurrent 

 nervure ; b. n. = basal nervuie ; t. c. = transver30-cubital 



