BOMBUS HORTORUM i 79 



10. BOMBUS HORTORUM, Linnaeus. 

 Small Garden Humble-bee. 



The banded variety of the closely-related B. ruderatus 

 is very like this species ; for points of difference see the 

 description of B. ruderatus. 



Queen. Medium sized; length 17-20 mm., expanse 

 35-39 mm. 



Head black. Thorax black, with a bright yellow band in 

 front and a slightly narrower one behind. Abdomen black, 

 with the 1st segment yellow, the yellow extending on to 

 the extreme base of the 2nd segment, the 4th and 5th 

 segments white, the white generally extending on to the 

 edge of the 3rd segment, and the 6th segment black. 

 Corbicula hairs black, rarely tipped with red. 



In dark specimens the yellow bands are somewhat 

 narrowed, and darkened by an admixture of black hairs. 



Coat rather long and rather uneven. 



The head is more elongate than in any other species ; 

 it is nearly twice as long as it is broad, and the cheeks are 

 rather more than half as long as the eyes. By this character 

 B. Jiortorum is easily distinguished from B. jonellus, which 

 is very similarly coloured. 



WORKER. Length 11- 16 mm. 

 Only differs from the queen in size. 



Male. Length 14-15 mm., expanse 29-32 mm. 

 Abdomen rather elongate. 



Head black, more or less yellow on top. Thorax 

 black, with a yellow band in front, and another one, some- 

 what narrower, behind. Abdomen black, with the 1st 

 segment yellow, the yellow extending on to the extreme base 

 of the 2nd segment in the middle ; 4th and 5th segments 

 white, 6th black in the middle, white at the sides, 7th 

 black. 



Dark specimens have the yellow bands and white tail 

 more or less blackened. 



