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Formiscurra
''Formiscurra'' is a genus of planthopper in the family Caliscelidae with a single species ''Formiscurra indicus'' found in southern India. Like others of its family they have short wings, suck plant sap and escape by leaping. The species shows great sexual dimorphism. The male of this half centimeter-long insect has an enlarged lobe in front of its head, the frons or metope, giving it an ant-like appearance. Females do not have such an enlarged structure but have a slightly long snout and differ slightly in body shape. The species is found mainly on low vegetation in open scrub and grass habitats. ==Discovery==
This species was described in 2011 on the basis of specimens collected from around southern India. Older specimens had been collected in 1978. The holotype was collected in the campus of the University of Agricultural Sciences at Bangalore in the state of Karnataka in India. Other specimens have been collected from a widely separated locations in southern India including Nagerhole, Dindigul, Mettupalayam and in Andhra Pradesh. The genus name is derived from the Latin word ''formica'' for ant and ''scurra'' for clown. Although no molecular phylogenetic studies have been conducted, the species is thought to be closely related to African forms like ''Afronaso'' and ''Populonia''.〔 Male-limited Batesian mimicry is extremely rare. Not much is known about the life history of the species and although the males are myrmecomorphic. The benefit of this ant-mimicry limited to the male is unclear and in general, male-limited mimicry is rare (the other examples being a spider ''Coleosoma floridanum'' with an ant-like male and a jewel beetle ''Chrysobothris'' with males being mimetic).
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Formiscurra」の詳細全文を読む
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