INDEX. 153 



Darts. (See Lancets.) Page. 



Dendroctonus, ' ' preepisternum " '. . 20 



Depressor muscles of wing of honey bee 64 



Determination of sex in honey bees 139 



Deutocerebrum, defined 124 



in honey bee 125-126 



Development, defined 1 1-12 



Diaphragm cells 110 



Diaphragms, defined 107-308 



dorsal 109-110 



ventral 109 



Digestion 86, 89 



assimilation, and excretion, general physiology 84-87 



Dorsal diaphragm 109-110 



sinus 107-108, 111 



' ' Dorsocerebrum " 126 



Dorsum, defined ,18 



Drones, defined 130 



Ductus ejaculatorius 132 



Egg, defined 130 



fertilization 137, 138, 139 



formation 136 



Elevator muscles of wing of honey bee 64 



Embryo 12-14 



Embryonic development, defined 12 



Empodium, defined 22 



of honey bee 68, 69 



Entocranium 31, 32 



Entodorsum, defined 19 



Entopleurum, defined 19 



of mesothorax of honey bee. (See Pleural ridge.) 



Entosternum (furca), defined 21 



of prothorax of honey bee 55 



mesothorax and metathorax of honey bee 56 



Entotergum, defined 19 



Entothorax, defined 32 



Enzymes 87 



Epicranium, defined 16 



Epimeral paraptera (postparaptera), defined 20 



of mesopleurum of honey bee 56 



Epimerum, defined 19 



of mesopleurum of honey bee 5G 



Epi pharynx, defined 16 



of honey bee 51-53 



sense organs 52-53 



Epipleurites, defined 24 



Episternal paraptera (preparaptera), defined 20 



of mesopleurum of honejf bee 5G 



Episternum, defined , 19 



of mesopleurum of honey bee 56 



Excretion 84-87 



Extensor muscle of mandible of honey bee 40 



External genital organs of drone honey bee 72-73 



development 73-74 



