vill BOMBUS HORTORUM 179 
10. BOMBUS HORTORUM, Linnzus, 
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 4. 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 Ist 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. hortorum 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. 
