YORKSHIRE HYMENOPTERA IN 1879, 1880 AND 1881. Ill 



Tribe ANTHOPHILA—Bees. 



Halictus leucozonius {Schr.) Taken near Leeds in the 

 spring of 1879 by Mr. W. P. Weston, the specimens being 

 identified by Mr. E. A. Fitch (Roebuck). 



H. cylindricus {Fab.) Several (and one specimen of a 

 variety) on flowers of ragwort, near York, 1881 (Wilson). 



Andrena albicans {-K'bj'.) Two males taken near Leeds 

 by Mr. W. P. Weston in the spring of 1879, ^"d named by Mr. 

 E. A. Fitch (Roebuck). 



Several in 1881 at Holgate, York, flying amongst herbaceous 

 flowers (Wilson). 



A. fulva {Schr.) Rastrick (see Nat., June 1880, v. 173). 



A. chrysosceles {Kby.) Two in i88j on herbaceous 

 flowers, Holgate (Wilson). 



Nomada ruflcornis (Z.) One amongst wood, i\.comb 

 Wood, 1 88 1 (Wilson). 



Bombus muscorum (Z.) Afewin 1 881, Holgate (Wilson). 



B. lapidarius (Z.) A few at Holgate in 1881 (Wilson). 



B. virginalis {-Kby.) Wothersome nr. Bramham (Roebuck, 

 Nat, June 1880, v. 173). 



B. lucorum (Z.) Holgate, abundant in 1881 (Wilson). 



B. subterraneus (Z.) One on flowers of rhododendron, 

 Holgate, 1 88 1 (Wilson). 



