. Elementary entomology . Fig. 361. Horse-fly {Tahanus atratics) n, lan'a ; fi, pupa ; c, adult, (.\fter Riley) SHORf-HORNEl) FLIES {BRACHYCEKA) In this section the antennae are composed of from three to five segments, the famihes being divided into three groups according to the structure of the \ V/ / antennae, and being fur- ther distinguished by w^^ ^^-"•••""?=grr^^^)^.^=r:^^^grr^^^^ the wing-vcnation. .3 X. , —..-^jMBirfiii* . . ^ ev In the first group the third segment of the an- tenna is clearly ringed, showing that it is made up of several segments grown together. Horse-f
. Elementary entomology . Fig. 361. Horse-fly {Tahanus atratics) n, lan'a ; fi, pupa ; c, adult, (.\fter Riley) SHORf-HORNEl) FLIES {BRACHYCEKA) In this section the antennae are composed of from three to five segments, the famihes being divided into three groups according to the structure of the \ V/ / antennae, and being fur- ther distinguished by w^^ ^^-"•••""?=grr^^^)^.^=r:^^^grr^^^^ the wing-vcnation. .3 X. , —..-^jMBirfiii* . . ^ ev In the first group the third segment of the an- tenna is clearly ringed, showing that it is made up of several segments grown together. Horse-flies. The best- known family of this group is that of the horse-flies {Tabaiiidae). They are well-known pests of live stock and often become annoying to man. The adults have short, broad heads, large eyes, thick bodies, short, oval abdo- mens, and strong, powerful wings, which enable them to outstrip the swiftest horse. They are often most trouble- some along wooded roads, where they will attack a horse in swarms and, with their loud buzzing, render the animal frantic. The larvae are long, pointed maggots which live mostly in water in swampy places and along the edges of streams and ponds, and are carnivorous. In the swamp lands of southern Texas and Louisiana the large horse-flies appear in such swarms as to make life for cattle almost impossible, and along our coasts wherever
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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912
