Nicidus stali Schmidt, 1911

Constant, Jerome, 2008, Revision of the Eurybrachidae (XII). The Oriental genus Nicidus Stål, 1858 (Hemiptera: Fulgoromorpha), Zootaxa 1842, pp. 45-55 : 52-54

Nicidus stali Schmidt, 1911

Figs. 11–12; 18–22; 24

Nicidus stali Schmidt, 1911: 216 .

Nicidus stali Schmidt, 1911 : Metcalf, 1956: 30.

Etymology: Assumed to be dedicated to Carl Stål.

Types examined: Lectotype Ψ of Nicidus stali Schmidt, 1911 (present designation) [Lawas, Sept. 6, 1909] [Type] [E. Schmidt] [ Nicidus ståli Schmidt Ψ. Edm. Schmidt determ. 1910.] [Mus. Zool. Polonicum, Warszawa, 12/45] [Lectotype Ψ Nicidus stali Schmidt, 1911 , Jérôme Constant des. 2008] left tegmen missing apical half (ZMPA). Coordinates of Lawas: 4°51'N 115°24'E.

Paralectotype Ψ of Nicidus stali Schmidt, 1911 : [Telang, Borneo, 12.81] [Telang, Borneo, 12.81] [Type] [ Nicidus ståli Schmidt Ψ. Edm. Schmidt determ. 1910.] [Paralectotype Ψ Nicidus stali Schmidt, 1911 , Jérôme Constant des. 2008] left tegmen missing apico-costal fourth, left hind wing missing apical third, dissected (ZMHB). Coordinates of Telang: 2°07'S 115°00'E.

Other material examined. Malaysia: 1 Ψ: Penang, Batu Feringgi (5°28'N 100°15'E), iv.1958 ( RBINS).

Diagnosis. (1) anterior margin of frons showing concave emargination on each side in ventral view; (2) fronto-clypeal joint with a transverse black line; (3) maximal breadth of tegmina at basal third; (4) known from Peninsular Malaysia and Borneo.

Redescription. LT: Ψ (n = 2): 22.0 mm (21.9 to 22.0).

Head: all parts visible in dorsal view variegated yellowish brown suffused with red; vertex slightly concave, slightly depressed on middle of disc ( Figs 19, 22 ); infra-ocular spine shorter than antennae and lateral projection of frons in dorsal view; eyes emarginate by infra-ocular spine ( Fig. 22 ); frons transversely depressed, yellowish brown to reddish yellow with brown patch at lateral angle; area between anterior margin and peri-discal carina darker, with blackish brown line ( Figs 21, 22 ); sides of head coloured as frons with brown patch at antero-ventral angle; lateral carina of frons between clypeus and lateral projection slightly marked on ventral half; fronto-clypeal joint with black line; clypeus coloured as frons with sides and apex brown; antennae and labium brown; ratio BV/LV = 2.0; BF/LF = 2.1.

Thorax: variegated yellowish brown suffused with red dorsally, brownish ventrally; pronotum with disc slightly depressed, obsolete median carina and transverse depression at each side of disc; mesonotum with 3 obsolete carinae; ratio LP+LM/BT = 0.71.

Tegmina: ( Fig. 18 ) reddish to pale yellowish brown with veins reddish; area along costal margin on apical 3/4, apex and ante-apical transverse band with celles hyaline marked by brown spots; costal margin sinuate; apical margin obliquely rounded; maximal breadth at first third; ratio LTg/BTg = 3.4.

Hind wings: ( Fig. 18 ) infuscate with apical 1/4 darker marked by 2 ante-apical transverse paler bands; sutural margin bisinuate on basal 3/4, strongly emarginate at apical 1/4.

Legs: all legs yellowish brown suffused with red; tibiae I with irregular black markings ventrally; femora I with subapical black markings and longitudinal black line ventrally; all coxae and trochanters with brown patch; femora I narrowing from apex to base; tibiae I with external margin curved and obliquely truncate apically; internal margin sinuate; tibiae II with internal margin straight and external sinuate; tibiae III with 5-6 lateral and 8 apical spines; first hind tarsomere with 12 subapical teeth ventrally.

Abdomen: brown.

Genitalia ɗ: unknown.

Genitalia Ψ: (Figs 11–12) anal tube strongly curved ventrad in lateral view (Fig. 11); gonoplacs with postero-ventral angle angulously rounded; gonocoxae VIII slightly concave (Figs 11, 12); gonapophysis IX projecting posterad (Fig. 11).

Notes. Nothing is known about this species other than that it was previously reported only from Borneo. It seems to be much more widespread as it is also found in Peninsular Malaysia but its shape and colour are surely good camouflage when it sits on branches or trunks.

Figures

FIGURES 13 – 22. 13 – 17: N. fusconebulosus. 13, habitus, dorsal view (LT = 17.4 mm). 14, habitus at rest, dorsal view (LT = 18.3 mm). 15, habitus, left lateral view. 16. frons, ventral view. 17, head, right lateral view. 18 - 22. N. stali. 18, habitus, dorsal view. 19, habitus at rest, dorsal view (LT = 22 mm). 20, habitus, left lateral view. 21. frons, ventral view. 22, head, right lateral view.