1913.] NATURAL SCIENCES OF PHILADELPHIA. 29 



Turnerella (2), Eunjglossa (57), Euryglossina (8), Euryglos- 

 sella (1), Euryglossidia (2), Heterapis (3), Hylceoides (4), 

 Neopasiphae (1), Stenotritus (2), Mellitidia (1), Gastropsis 

 (2), Melittosmithia (2), Neoceratina (1), Exoneura (10)/ 

 Le.s<?.s (2), Androgynella (1). It will be seen that these are 

 inainl}' Prosopid and Colletid bees. 



(2) Genus common to Australia and New Zealand, but not found 



elsewhere: ParacoUetes (70). 



(3) Genus common to Australia and the Austromalay Islands: 



Palceorhiza (12). 



(4) Genera widely distributed over the Eastern Hemisphere, but not 



American : 



(a) Genera with very distinct Australian species: Saropoda (2). 



(b) Genera with Australian species closely allied to those of 

 Asia: AUodape (4), Nomioides (1), Crocisa (11), ^ Thaumato- 

 soma (1). 



(5) Genera widely distributed in the Eastern and Western Hemi- 



spheres: 

 (a) Genera with very distinct Australian species: Prosopis (95), 



Halidus (55), in part, Megachile (89). 

 (6) Genera with Australian species closely allied to those of Asia : 



Sphecodes (1), HaUctus (55), in part, Nomada (1), Nomia 



(36), Xylocopa (1), Anthophora (15), Lithurgus (3), Dianthi- 



dhim,(l), Ccelioxys (4), Trigona (8). 



By way of contrast, it is of interest to compare the bees of Formosa. 

 I recently studied a large collection from that island, and did not 

 find a single endemic genus or subgenus. 



Exoneura angophorae Cockerell. 



Females collected by H. Hacker at Sunnybank, Brisbane, Septem- 

 ber 12j 1911, represent extreme variations of this species, as follows: 



(a) Var. hackeri, nov.; white clypeal band extremely broad, its 

 upper half broadest, and covering the whole width of the clypeus; 

 lateral face marks quite large, triangular; first three abdominal 

 segments with broad dusky bands, gently concave posteriorly, the 

 bands bending more or less cephalad at sides. (Queensl. Mus. 3.) 



(b) Var. obliterata, nov.; clypeal band dusky, narrow, very obscure; 

 no lateral marks; first abdominal segment nearly all black except 

 the hind margin (broadest in middle) and broad hind corners; 

 band on second segment reduced to three dusky patches; no band 

 on third. (Queensl. Mus. 1.) 



iThe Syrian E. libanensis Friese belongs to Exoneuridia Ckll., 1911. 



2 Crocisa pantalon Dewitz, from Porto Rico, is said by Friese to belong to 



Epeolus. 



