some Genera of Bees. 2'.)?) 



ASHMEADIELLA. 



A. hucconi.t, A. caclorum, and A. h'gelovife examinerl. 

 ^Maxillary palpi 4-joiiited. Galea very slender, decussatel. 

 In Inicconis and cactorum the first two joints of the labial 

 palpi are very long and about equal; in cactorum the third 

 joint is narrowly heart-shaped. In A. higelovire the first 

 two joints of labial palpi are broadened and the first joint is 

 noticeably lonf^er than the second. 



Ashmeadiella appears to be related to Osmia, but not to be 

 much allied to IJeriades or Chelostoma. 



All the slides which form the basis of this paper were 

 prepared by Airs. W. P. Cockerell. 



Appendix. By T. D. A. Cockerell. 



I would propose, in view of the above facts, to split up the 

 Ccelioxinaj* of Ashniead (Tr. Am. Ent. Soc. xxvi. p. 80) 

 into several subfamilies : — 



(1) Coelioxinffi proper, including CceUoxys^ to follow 

 IMegachiliiiai in the series. 



(2) Dioxinai, including Z)«Vu7/5 (with Hnplop ist'fes), position 

 somewhat uncertain. The separation of this from 

 Coelioxinaj may perhaps be erroneous. 



(3) Philereminte, including Phileremus (sens. Taschen- 



berg), to follow the series of Epeolus &c.t 



(4) AUodapinjB, apparently including Allodape, Philere- 



inulus, and Neolarra ; but I know the first genus only 



from description. 

 This leaves numerous genera not accounted for; I do not 

 place them, because I have no specimens, though their 

 position can usually be guessed at. 



Dioxys Martiif Okll., sp. n. 



? . — Length about 7 niillim. Black (without any red) ; 

 pubescence about as in D. producta subruhra, the five hair- 

 bands on abdomen very dense and white ; legs black ; tibial 



• The Ccelioxj-nse of Dalla-Torre and Friese 13 even more composite, 

 includingr all the European parasitic bees except Psithyrus and Stelis\ 

 Ashmead (Tr. Am. Ent. Soc. xxvi. p. ~)'i) has given an excellent criticism 

 of tiiis arrangement, and niv only objection to his reforms is that they do 

 not go nearly far enough along the Imes he has indicated. 



t Phileremus and Eptolus would form a more natural group than 

 Epe(jlus and Nomada, 



