Goniagnathus (Tropicognathus), 2009

Viraktamath, C. A. & Gnaneswaran, R., 2009, Three new species of Goniagnathus (Hemiptera: Cicadellidae) from the Indian subcontinent with description of a new subgenus, Zootaxa 2224 (1), pp. 51-59 : 52

Goniagnathus (Tropicognathus) subgen. nov.

Type species: Goniagnathus fumosus Distant

Male pygophore with well developed dorsal appendage; caudal margin with few stout setae. Subgenital plates fused but variable in shape. Apophysis of style either of uniform width or widened distally, apex bilobed or bifid. Aedeagal shaft with processes on shaft but lacking ventral basal processes.

Remarks: This subgenus differs from other subgenera in having a dorsal appendage and reduced number of stout setae on the caudal half of the male pygophore.

The subgenus includes, in addition to new species, the following species of Goniagnathus from the Indian subcontinent: appellans Baker , concavus Dash & Viraktamath , fumosus Distant , nervosus Melichar , punctifer (Walker) , quadripinnatus Dash & Viraktamath , symphysis Dash & Viraktamath , syncerus Dash & Viraktamath. Examination of the type female of G. bicolor Distant in NHM revealed that it is identical with the female G.fumosus (Webb, personal communication) and hence it is treated here as a junior synonym of the latter.