Gelastissus Kirkaldy, 1906

Gnezdilov, Vladimir M., 2008, Revision of the genus Gelastissus Kirkaldy (Hemiptera, Fulgoroidea, Caliscelidae), Zootaxa 1727, pp. 22-28 : 23

Genus Gelastissus Kirkaldy

Gelastissus Kirkaldy, 1906: 441 . Type species: Gelastissus albolineatus Kirkaldy, 1906

Conocaliscelis Matsumura, 1916: 90 , syn. n. Type species: Conocaliscelis hokutonis Matsumura, 1916

Diagnosis. Metope elongate, with a strong median keel reaching the post- and anteclypeus and sublateral keels ( figs 3, 6, 9, 13). Pedicel with short process. Coryphe transverse. Brachypterous, venation of fore wings obscure. Hind tibia with single lateral spine. Each metatarsomere I and II has only one lateral apical spine ("socle seta" in my previous works), situated externally on both legs. Hind margin of pygofer straight ( fig. 14e). Anal tube widely rounded (in dorsal view) ( fig. 14g). Anal column short and wide. Phallobase short and wide, narrows apically, with a lobe above ventral aedeagal hook and a couple of rounded basal processes under the hook ( figs 14b–d). Single aedeagal hook bifurcated apically. Style with straight hind margin, caudodorsal angle obtuse ( fig. 14a). Capitulum of style long and narrow, without lateral tooth.

Distribution. Eastern Australia, New Guinea, Java, Vietnam, Taiwan.

Biological notes. The species of the genus inhabit open places with Poaceae in Australia and Taiwan (A.F. Emeljanov, pers. comm. 2007)

Relationships. The elongate metope with strong median keel and the asymmetrical disposition of the lateral apical spines of metatarsomeres I and II indicate that the genus Gelastissus is related to the African genus Gwurra Linnavuori, 1973 .