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TEXT-BOOK OF ENTOMOLOGY 



adaptations for that end are the bristles or spinules on the legs, 

 especially the tibite. 



Osten Sackeu states that among Diptera the aerial forms (Bomby- 

 lidte, etc.) with their large eyes or holoptic heads, which carry with 



Fro. 105. Foot of honey-bee, with the pulvillns in use: A, under view of foot; i, 1, 3d -5th 

 tarsul joints: on, unguis ; ffi, tactile hairs; pr, pulvillus ; cr, curved rod. , side view of foot. 

 C, central part of sole ; pdj pad ; cr, curved rod ; pr, pulvillus unopened. After Cheshire. 



them the power of hovering or poising, have weak legs, principally 

 tit for alighting. On the other hand, the pedestrian or walking 

 Diptera (Asilidse, etc.) " use the legs not for alighting only, but for 

 running, and all kinds of other work, seizing their prey, carrying 



Kic. 1iMl. . Minlitlcations of the lops of dilVcivnt bees. A, Apis: a, wax-pincer and ouicr 

 \ic\v n|' himl ]rj. r ; /i. inner asprrt nf \vax-piMccr and li><r, with the nine pollen-brushes or rows of 

 hairs ; c, cum [mil nil 1 1 airs liulilinir grains nf ]iullen ; </, anleriur leir, showing antenna-cleaner ; c, spur 

 on tiliia nf middle le.ir. /I, Melipona ! ./', |iecilliar trroup of spines at apex Of tibia Of hind lefr ; ;/, 

 inner a^pi'i-t nf \vn\-|iirieer and lirst tars'al joint. < '. lioiiilnis : A, \vax-]iincer ; i, inner view of tho 

 same and lirst. tarsal joint, all enlarged. From Iimcct Life, U. S. Div. Ent. 



