386 THE ENTOMOLOGIST. 



having talien nests of both, and obtained all the sexes from 

 them. If the males of each are compared, it will be at once 

 apparent that they are perfectly distinct ; it is only necessary 

 to compare the shape of the head in the two species to at 

 once perceive the distinction, independent of difference of 

 the colour of the pubescence with which they are clothed ; 

 but the most conclusive, and perhaps the most satisfactory, 

 proof is to be obtained by a comparison of the organs of 

 generation. 



A few years ago I took three specimens of this species 

 with pure white hair on the apical portion of the abdomen : 

 this variety occurred at Pakefield, in Suffolk. Mr. Kirby 

 has described three females ; that of the full description has 

 a white tip to the abdomen ; his var. y. and 5". are both 

 females, having a tawny apex. 



16. Bombus Lucorum, lUig. Mag. \. 166 ; Fahr. Syst. 



Piez. p. 350, male; Smith, Bees Great Brit. p. 



225, male, female, neuter ; Nyland. Revis. Ap. 



Boreal. 262. 

 Apis Lucorum, Linn. Faun. Suec. p. 427, male ; Fahr. 



Ent. Syst. ii. 322, male ; Kirhy, Mon. Ap. Angl. v. 



336, male. 

 A. terrestris, Linn. Faun. Suec. 424, female, 



A. Csespitum, Panz. Faun. Germ. 31, 19, male. 

 Bombus sporadicus, Nyl. Ap. Boreal. 232. 



B. Ericetorum, Curtis, Brit. Ent. xii. fol. 564, male. 

 This species is extremely abundant, and is found in all 



parts of the country ; it is also found throughout Europe. 

 Specimens of the female from Greece and Spain frequently 

 have the corbicula on the posterior tibiae yellow : I have 

 taken the same variety in Suffolk. The colouring of the 

 male is very variable, the black band on the thorax and also 

 that on the abdomen being almost entirely replaced by yellow 

 pubescence. 



17. Bombus Hortorum, Latr. Hist. Nat. xiv. 65, female ; 



lUig. Mag. v. 4 ; Fabr. Syst. Piez. p. 347; Dohlb. 

 Bomb. Stand. 38 ; St. Farg. Hym. i. 4G() ; Brul/e, 

 E.vped. Moree, iii. 328 ; Drews, d Schiodte, Bomb. 

 Detun. ii. 120; Smith, Boes Great Brit. p. 230; 

 Nyland. Ap. Boreal, p. 231 ; Schenck, Hym. Nassau, 

 p. 150. 



