160 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Mr. Banks's paper on "New American Pseudoscorpions" was 

 read by title. 



Dr. Phillips introduced Mr. Snodgrass, who exhibited his 

 drawings on the anatomy of the honey bee, Apis mellifera, and 

 explained them. Much of the work done previously on this 

 subject has been found to be incorrect or incomplete. 



Dr. Hopkins congratulated Mr. Snodgrass on his work, 

 which he considered as an advance over anything on bee anat- 

 omy that had been done previously. He thought that the detailed 

 drawings were very valuable, but that it was probable that the 

 interpretation would not be accepted by all workers on anat- 

 omy. The paper was further discussed by Messrs. Caudell, 

 Quaintance, Gill, and Phillips. 



Dr. Hopkins exhibited living specimens of Chermes forming 

 galls on the flower buds of the red spruce, Picea rubens, and 

 a colored drawing of the galls. 



The following papers were accepted for publication : 



ON THE BEE-GENUS CENTRIS. 



/ 



[Hymenoptera, Anthophoridse and Euglossidse.] 

 BY C. SCHROTTKY, Puerto Bertoni, Paraguay. 



In Zeitschr. Hym. Dipt., vol. v (1905), pp. 23-26, I pointed 

 out the systematic position of this genus in a paper entitled 

 "Was ist unter der Gattung Ccntris Fabr. zu verstehen?" As 

 it seems, my views have been misunderstood by several recent 

 American writers ; therefore I think it useful to review briefly 

 the history of this genus. 



It was created by Fabricius for a number of mostly Amer- 

 ican bees. Although its type species, Centris dimidiata, stands 

 and always stood with the Euglossidae, the genus has been 

 removed to the Anthophoridce, because, perhaps, people 

 thought otherwise in older times than we do. Surely none of 



the later anthophorid Centris has "clypeo gibbo, tibiis 



posticis incrassatis, compressis. ciliatis" as true euglossid 

 Centris have. It is only too clearly seen that the later mono- 

 graphers, Frederick Smith (1874), Heinrich Friese (1900), 

 and with them the greatest part of the recent apidologists, 

 follow the footsteps of Lepeletier blindly without even becom- 

 ing aware of the mischief they introduce thus in entomology. 



Lepeletier was the first who gave to Centris the wrong limits 



