26 



ENTOMOLOGY 



in the number of lateral facets. Thus in Formica pratensis, according to 

 Forel, the worker has about 600 facets in each eye, the queen 800-900 

 and the male 1,200. 



FIG. 40. Ocelli and compound eyes of the honey bee, Apis mellifera. A, queen; B, drone. 



After CHESHIRE. 



\ 



B 



FIG. 41. Various forms of antennae. A, filiform, Euschistus; B, setaceous, Plathemis; C, 

 moniliform, Catogenus; D, geniculate, Bombus; /, flagellum; p, pedicel; s, scape; E, irregular, 

 Phormia; a, arista; F, setaceous, Galerita; G, clavate, Anosia; H, pectinate, male Ptilodactyla; 

 /, lamellate, Lachnosterna; J, capitate, Megalodacne; K, irregular, Dineutus. 



