Lamtoana exigua Cao & Dmitriev, 2020

Cao, Yanghui, Dietrich, Christopher H., Dmitriev, Dmitry A. & Zhang, Yalin, 2020, Taxonomic study of some Afrotropical erythroneurine leafhoppers (Hemiptera: Cicadellidae: Typhlocybinae), Zootaxa 4860 (3), pp. 301-351 : 336

3. Lamtoana exigua Cao & Dmitriev sp. nov.

( Figs 20 , 27 i–l)

Description. Body off white, heavily marked with dark brown (specimen preserved in ethanol before examination). Vertex with large brown patch apically at transition from vertex to face, with pair of brown patches medially, near to each other; tip of anteclypeus darkened. Pronotum with middle anterior margin and central part brown. Basal triangles of mesonotum dark. Forewing with inner margin of clavus darkened. ( Figs 27 i–l)

Male abdominal apodemes 2S ( Fig. 27a ) extended to middle of sternite IV.

Pygofer dorsal appendage ( Figs 27b, c ) with apical part short, apex blunt; ventral appendage ( Figs 27b, d ) very short, germ-like. Subgenital plate ( Figs 27b, f ) with about 4 macrosetae. Style ( Fig. 27g ) with pointed, tooth-like process extended form subapical inner edge of apical part, upper part of preapical lobe weakly sclerotized and serrated. Connective ( Fig. 27h ) with manubrium wide and long, lateral arms thick and short. Aedeagus ( Figs 27i, j ) with apical processes moderately long, extended away from shaft in caudal view; dorsal apodeme well developed, widened in caudal view.

Measurement. Male length 3.50mm.

Material examined. Holotype: ♂, UGANDA, Kibale National Park, Kanyawara, Makerere University Bio-logical Field Station , 1587m, 0º33.408'N, 30º22.603'E, 30.vii–05.viii.2005, Malaise trap, degraded mid-altitude Rainforest, coll. S.van Noort (IMC).

Etymology. The new specific epithet is derived from Latin adjective “ exiguus ” which means short, small, referring to the short pygofer ventral appendage.

Diagnosis. This species can be distinguished from the other species the genus by the shortened pygofer ventral appendage, presence of a tooth-like process on the style and by the well-developed dorsal apodeme.

Figures

FIGURE 20. Lamtoana exigua. a. abdominal apodemes 2S; b. genital capsule; c. pygofer dorsal appendage; d. pygofer ventral appendage; e. subgenital plate, style, connective and sternite IX; f. subgenital plate, dorsal view; g. style, dorsal view; h. connective; i. aedeagus, lateral view; j. aedeagus, ventral view.

FIGURE 27. a–d. Lamtoana flavoscuta; e–h. Lamtoana nakulabica; i–l. Lamtoana exigua; m–p. Nsesa cameroonica; q–t. Nsimbala kinlaza; u–x. Nsimbala wenea.