19201 Lm/z and Cockerell, Notes on Anieric/iu Bees 615 



Spinola proposed the above name in the first paragraph of his descrip- 

 tion of basizona, substituting it for Latreille's, 1825, p. 464, Mdcroata, 

 preoccupied by Meigen in Diptera. In the last paragraph of his discus- 

 sion of basizona he raises the question as to ruficornis belonging here. 

 He had apparently not seen ruficornis. It would st^em logical to consider 

 basizona as the type of the genus. The other species inchided by Spinola 

 were africornis, grohmanm, and tarsata. Patton, 1879, p. 472, gave 

 Macrocera antennnta licpeletier = Eucera antennala Fabricius = Api 

 malvoe Rossi as the type of Tetralonia but, as Spinola did not originally 

 include this, Patton was not in order or would not now be. See also 

 Cockercll, 190b, p. 105, and 1912rf, p. 262. 



Dalla Torre and Friese, 1895, p. 56, make Tetralonia a subgenus 

 of Eucera. See also Dalla Torre, 1896, p. 223. Much of the recent 

 literature has considered Tetralonia as a distinct genus with Synhalonia 

 Patton, 1879 (type: ftilvitarsis) , and Eusynhalonia Ashmead, 1899 

 (type: edivardaii), as synonyms. There is considerable confusion with 

 Xenoglossa and this is probably the case in Friese's 1916 paper. 



Robertson, 1905, p. 366, gives keys to Illinois species under the 

 name Synalouia (emended Synhalonia). Cockerell, 191 2d, gives an 

 anotated list and, 1914a, p. 284, a key. 



acerba Oesson, 1879, p. 210. (Melissodes) 9 . Nevada; (Morrison). 



SynhaUrnia acerba Patton, 1879, p. 474. Su^ests that it may be the 9 of 

 edwardsii Cresson. 



Synhalonia acerba Fowler, 1899, p. 138. Berkeley and San Mateo Ck)unty, 

 California; IV, V (Fowler, 1902, p. 321); at Brassica campestris and 

 Ranuncidits calif omicus. 



Anthophora iirbana (misprint ior Synhalonia acerba) Cockerell, 1905, p. 31. 

 Los Angeles, California; (Davidson). 



actuosa Cresson, 1878a, p. 208. (Melissodes) 9. California; (H. 

 Edwards). 



Melissodes actuosa Cockerell, 1905, p. 30. cf . Lancaster, Caufobnia; 

 (Davidson). 



Synhalonia actuosa Viereck et al., 1905, p. 318. cf . C^rvallis, Oregon; 

 V, VIL 



Bray, 1917, p. 94. Claremont, California; (Baker). 



albicans Provancher, 1896, p. 27. (Synhalonia) cf . I^s .\ngeles, 

 California; (Coquillett). 



Synhalonia albicans Fowler, 1902, p. 321. Sun (iabriel, Caufornia; VI. 

 Cwrkerell, 190(), p. 101. 



albopilosa Fowler, 1899, p. 138. (Synhalonia) <f . Berkeley, California; 

 IV; at Ranunculus calif omicus. 

 Cockerell, 190(), p. 101. 



