Consociata, Qin, Dao-Zheng & Zhang, Ya-Lin, 2006

Qin, Dao-Zheng & Zhang, Ya-Lin, 2006, Two new genera and two new species of Delphacidae (Hemiptera: Fulgoroidea) from China, Zootaxa 1204, pp. 61-68 : 65

Consociata gen. n.

Type species. Consociata sinensis n. sp.

Diagnosis. Consociata can be distinguished from other genera of Delphacini by the combination of the following characters: vertex with the submedian carinae not uniting at apex; midline length of frons: greatest width about 2.4:1, widest at apical third, median carina forked about middle level of eyes; antennae surpassing frontoclypeal suture; pronotum with lateral carinae attaining hind margin; spinal formula of hind leg 5­7­4; post­tibial spur with more than 15 teeth; male anal segment ring­like, lateroapical angles each produced into a stout spinose process; pygofer with medioventral process; phallus reflected cephalad with a process; left and right genital styles fused.

Description. Head including eyes distinctly narrower than pronotum. Vertex longer submedially than wide at base about 1.3:1, submedian carinae not uniting at apex, Yshaped carina distinct. Frons narrower at base than at apex, mid­line length of frons: greatest width 2.4:1, widest at apical third, median carina forked about middle level of eyes. Postclypeus as wide at base as apex of frons. Rostrum reaching to meta­coxae. Antenna cylindrical, surpassing frontoclypeal suture, basal segment longer than wide by about 1.5:1, shorter than second by about 1:1.8. Ocelli present.

Thorax. Pronotum slightly shorter than vertex medially, lateral carina attaining hind margin. Mesonotum in midline longer than the length of vertex and pronotum together. Spinal formula of hind leg 5­7­4. Post­tibial spur with more than 15 teeth.

Male genitalia. Anal segment of male ring­like, lateroapical angles separated, each produced into a stout spinose process. Pygofer with medioventral process. Suspensorium Y­shaped. Diaphragm broad. Phallus reflected cephalad with a process. Left and right genital styles fused.

Etymology. The name is derived from the Latin word “consociatus” (united), and with combination of the feminine suffix “­a”, which refers to the left and right genital styles fused. Gender: feminine.

Discussion. The following characters are considered synapomorphies of Consociata : frons with median carina forked at about middle level of eyes; male anal segment with lateroapical angles each produced into a stout spinose process; suspensorium Y­shaped; phallus reflected cephalad with a process; left and right genital styles fused. The character of fusion of the genital styles is unique in Consociata , which can be easily separated from other genera in Delphacini .

Distribution. Southern China (Hainan Province).