Entomology : with special reference to its biological and economic aspects . rnifex, fore tibia of male; /, Dytxs-cus fasckcitris, right fore leg of male; c, coxa; f, femur; s, spur; t, trochanter; tb,tibia; ts, tarsus. 54 ENTOMOLOGY Fig. 63. Other secondary sexual peculiarities of the legs may be men-tioned the tibial brushes of the male Caiocala conciunhens,regarded as scent organs, and the cjueer appendages of male Dolichopodidse that dangle in theair as these flies perform theirdances. The pulvillus is commonly anadhesive organ. In flies it hasglandular hairs that enable the in-sects to wa
Entomology : with special reference to its biological and economic aspects . rnifex, fore tibia of male; /, Dytxs-cus fasckcitris, right fore leg of male; c, coxa; f, femur; s, spur; t, trochanter; tb,tibia; ts, tarsus. 54 ENTOMOLOGY Fig. 63. Other secondary sexual peculiarities of the legs may be men-tioned the tibial brushes of the male Caiocala conciunhens,regarded as scent organs, and the cjueer appendages of male Dolichopodidse that dangle in theair as these flies perform theirdances. The pulvillus is commonly anadhesive organ. In flies it hasglandular hairs that enable the in-sects to walk on smooth surfacesand to walk upside down; so alsoin many beetles and notably in thehoney bee (Fig. 63) ; in this insectthe pulvillus is released rapidlyfrom the surface to which it hasbeen applied, by rolling up from theedges inward. Sense organs occur on the tactile hairs are almost alwayspresent on these appendages, whileauditory organs occur on the front tibire of Locustidae, Gryllidaeand some ants. Finally, the legs may be used to produce sound. Fig. Foot of honey bee, Apis niel-lifera. c, c, claws; p, pulvillus;fi-t^, tarsal segments.—AfterCheshire.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1
