258 



TIIF. ENTOMOLOGIST. 



case is overcome by an inspection of the organs of genera- 

 tion. Audouin, in 1821, published a paper on this subject 

 in the eighth volume of the Annal. general des Sc. Physiq. ; 

 therefore to him is due our knowledge of this excellent cha- 

 racter for specific distinctions, and not to the author of the 

 recent work on ' British Bees,' who says, " This character, 

 which I was the first to discover as being of specific value." 

 The females and worker bees are tolerably constant in their 

 colouring, and study and observation soon render the student 

 familiar with their differences. 



Bombus senilis, female 



Exposition of the Species of the Genus Bombds, de- 

 scribed IN THE ' MONOGRAPHIA APUM AnGLI^,' BV 

 KiRBY. 



74. Apis Muscorum, female 

 Var. |3., female, minor 



„ y., neuter 



„ J., £., neuter ; neuter, minor 

 Male, major 

 Var. (i., male ; y., male, immature 



75. A. Francillonella, neuter 



76. A. floralis, female 

 "Var. $., neuter (var.) 

 Male 



77. A. Sowerbiana, male 



