164 THE HUMBLE-BEE vill 
Berkshire at Streatley. Other localities are— 
Shotover, Oxfordshire, and in Berkshire, Tubney, 
near Abingdon, and Charlbury (Hamm) ; Boxmoor, 
Herts (Piffard); Wicken, Cambs, on comfrey 
(Nevinson); Brighton Downs (S. S. Saunders) ; 
Croydon. and Ipswich (Rothney); Barton Mills, 
Suffolk (Perkins); Rugby (Morice); Yarm, 
Yorkshire (Rudd); Carlisle (Heysham); in Ayr- 
shire at Barr, Kilkerran, and Dundonald (Dalglish); 
in Stirlingshire at Kilsyth, and in Lanarkshire at 
Elvanfoot. A male from the last-named locality in 
the Saunders’ collection has the tail darkened by the 
admixture of black hairs, except a small spot in the 
middle. 
On the Continent the coloration of this species 
varies greatly. The yellow bands are sometimes 
absent, and a variety in which the tail in all sexes is 
red, is, in many places, commoner than the white- 
tailed form. 
