16. BOMBUS. 205 



Worker. Closely resembles the female, varying in size from 4-6 

 lines. B.M. 



Male. — Length 5-6 lines. — Head, the pubescence on the clypeus 

 and vertex yellow ; it is also yellow on the thorax in front and on 

 the sides of the scutelhim; the abdomen as in the other sexes; the 

 posterior legs have a little pale pubescence, as well as the abdomen 

 and femora beneath. B.M. 



This is a local mountain species. It was first discovered in this 

 country by Mr. Edward Newman, on the Black Mountain, Breck- 

 nockshire ; it has also been found on Snowdon and other mountains 

 in Wales, in Herefordshire, Monmouthshire, and on Halifax Moor, 

 Yorkshire ; it has been taken most numerously at Loch Rannoch, 

 Perthshire. 



8. Bombus derhamellus. 



B. hirsutus, ater, corbicula anoque fulvis. Mas fusco-cinerascens, 

 ano fulvo, thorace inter alas abdominisque fascia atris. 



Bombus derhamellus, Illig. Mag. v. 169 <j\ 



Dahlb. Bomb. Scand. 44 S 2 $ • 



Smith, Bees Great Brit. 219 ; Entomol. iii. 282. 

 Apis derhamella, Kirby, Mon. Apum Any I. ii. 363 tf . 

 Apis donovanella, Kirby, lib. cit. ii. 357 <$ nee 2 , tab. 18. fig. 6 $ . 

 Apis raiella, Kirby, lib. cit. ii. 367 2 c? • 

 Bombus raiellus, Illig. Maq. v. 169 2 • 



Dahlb. Bomb. Scand. 33 S 2 • 



Drews, $ Schiodte, Kroy. Tidsskr. ii. 115 (1838). 



Smith, Zool. ii. 550 S 2 • 



Nyland. Notis. ur Sallsk. pro Faun, et Flo. Fenn. i. 238. 



Schenck, Nass. Bien. 153. 



Thorns. Hym. Scand. ii. 32. 

 Bombus donovanellus, Westw. Nat. Libr. vi. 255, pi. 17. fig. 1 $ . 

 Bombylius minor, Bay, Hist. Ins. 246 2 • 



Female. Length 6|-8 lines. — The body clothed with black pubes- 

 cence, that on the three apical segments rufo-fulvous ; the corbicula 

 on the posterior tibiae rufo-fulvous, the apical joints of the tarsi 

 ferruginous. B.M. 



Worker. Length 4J-6 lines. — Differs only in size, having the 

 corbicula rufo-fulvous as in the female. B.M. 



Male. Length 5-6 lines. — The pubescence on the head black, more 

 or less fuscous on the clypeus, the mandibles fringed with ferru- 

 ginous pubescence. Thorax clothed above with obscure fuscous- 

 yellow pubescence, that between the wings black ; the tibiae and 

 tarsi ciliated with rufous hairs ; the tarsi ferruginous beneath, the 

 claws ferruginous. Abdomen — the two basal segments clothed 

 with obscure flavo-fuscous pubescence, that on the third segment 

 black, and that on the remainder rufo-fulvous. B.M. 



Var. /3. The pubescence on the second segment of the abdomen 

 bright yellow. 



