(iG4 Mv. T. D. A. Cockerell — Descriptions ami 



Osmia cornifrons (Radoszkovvski). 



This species, from Korea, was published as a Chalicodoma, 

 and was referred by Friese as a synonym of" O. tmcrus, 

 Smith. In tlie British Museum 1 found Smith's taitrus 

 and a cotype of coniifrons. The facial horns in cornifruns 

 are much more widely separated, and finger-like instead of 

 subtriangular. Tiie abdomeu is very hairy. They are 

 certainly different species. 



Osmia simill'ima, Smith. 



I noted at British Museum : type ( ? , Nova Scotia) of 

 simil/ima looks exactly like type ( (^ , Florida) of O. cluilybea, 

 Smith ; but in simiUiina the basal nervure goes a little basad 

 of uervulus, in chalybea the reverse is true. 



Anthophora acet'vorum (L.). 



Linnrcus described his Apis acervorum from the black 

 female, which Frieze calls var. niyer. The species is, how- 

 ever, very variable, and the specimens before me may be 

 separated thus ; — 



Females 1 . 



Males 4. 



1. Ilair of head, thorax, and abdomen black ; 



red hair on labrum and outer side of liind 



tibire and basitarsi (England) acervorum (L.), s. sir. 



Hair not thus black '2. 



2. Hair of cheeks white ; pleura with white 



hair, becoming tawny and mixed with 



black above (Lisbon) var. Usbonensis, Ckll. 



Hair of cheeks chocolate or nearly black . . 3. 



3. Hair of abdomen chocolate (France) acervorum, var. 



Hair of abdomen ferruginous (Tangier) .... var. niyrofulva (Lep.). 



4. Abdomen dorsally beyond second segment 



with black or almost entirely black hair; 



hair of thorax usually fulvous (England) . acervorum (L.), s. str. 

 Abdomen dorsally beyond second segment 

 with hair largely pale ; thorax with hair 

 not fulvous; lateral face-marks more 

 deeply incised by black above 6. 



5. Abdomen with pale fulvous and black hair 



(Tangier) var. niyrofulva (Lep.). 



Abdomen wth white and h\&ck hair (Lisbon 

 and France) var. Usbonensis, Ckil. 



