Scaphodius bituberculatus, Schöller, 2009

Schöller, M., 2009, Revision of the New Caledonian genus Scaphodius CHAPUIS (Coleoptera: Chrysomelidae: Cryptocephalinae), Linzer biologische Beiträge 41 (1), pp. 767-801 : 779-780

publication ID	https://doi.org/ 10.5281/zenodo.5276273
persistent identifier	https://treatment.plazi.org/id/7425174F-FFE4-F740-FFD9-1039A81FFA56
treatment provided by	Carolina
scientific name	Scaphodius bituberculatus
status	sp. nov.

Treatment

Scaphodius bituberculatus nov.sp.

H o l o t y p e male (ZMHB): / NOUVELLE CALEDONIE, Aoupinié, près de scierie [white] /

17.III.1994, 700- 900 m, leg. M. Schöller [white] / Holotypus Scaphodius bituberculatus nov.sp.

des. Matthias Schöller [red] /.

6 P a r a t y p e s: 1♀ ( ZMHB), 2♀♀ ( MESC): same labelling as holotype ; 1♀ ( MNHN) / Ponérihouen / Aoupinié, Lat. S. 165.1707, Long. E 21.1038, Alt. 945 m [orange] / Collecté sur: Battage sur divers, Le 11/10/06, Par C. Mille [orange] /; 1♀ ( CRSRFP) 1♀ ( CRIRD): / Ouégoa / Mandjélia, Lat. S 20.39683 Long. E 164.53218, Alt. 787 m [orange with black border] / Collecté sur: Divers COL/X05/05, Le 07 et 08/02/05, S. Cazeres & C. Mille [orange with black border] /; (all with my label) GoogleMaps Paratypus Scaphodius bituberculatus nov.sp. des. Matthias Schöller [red] /.

D i a g n o s i s A medium-sized species with pronotum with adhesive setae, with punctures and longitudinal wrinkles, the latter missing at base of disc, elytra dark brown, glabrous, punctures in regular rows, with an apical tubercle each.

T y p e l o c a l i t y Nouvelle-Calédonie, Ponérihouen, Massif de l'Aoupinié: S 21°08.946, E 165°19.407, 465 m.

D e s c r i p t i o n o f h o l o t y p e (male) ( Figs 7, 8 View Figs 1-13 , 26 View Figs 24-32 , 46 View Figs 44-48 )

H a b i t u s. Rusty brown, with disc of pronotum, humerus and a longitudinal stripe on elytron dark brown, pronotum matt, elytra shiny, with scape and pedicel yellowish brown, body small, shape cylindrical, truncate ( Fig. 46 View Figs 44-48 ), pronotum wider than base of elytra, pronotum with longitudinal wrinkles, elytra glabrous with a pair of apical tubercles, size [mm]: length 2.7, width of elytra at humeri 1.8, length of elytra 1.8; length of pronotum 1.1, maximum width 1.85.

H e a d. Sunk into thorax up to hind margin of eyes, frons with coarse punctures and longitudinal wrinkles, with shallow longitudinal groove on frons, distance between upper lobes of eyes 1.7 times eye length; antennae inserted near lower margin of eyes, antennae blackish brown, scape and pedicel yellow; clypeus elongate, brown, covered with short white setae, basal margin bearing a pair of teeth with apical setae; labrum transverse, arcuate at apex ( Fig. 26 View Figs 24-32 ); mandible large, laterally densely setose, dark brown with yellowish brown tip with two large teeth.

T h o r a x. Prothorax: pronotum evenly curved at sides and constricted towards apex from basal 2/3 onwards, pronotum broadest at base; anterior margin, lateral margins and a pair of transverse markings opposite to scutellum rust-red, lateral margins even, carinate, completely visible in dorsal view, hind edges acute, tooth-like; pronotum with adhesive setae, with punctures and longitudinal wrinkles, the latter missing at base of disc, prothorax with coarse punctures moderately dense, front margin straight, lateral margins simple, with hind margin slightly concave ( Fig. 55 View Figs 53-58 ); mesothorax: scutellum smooth, black; elytra basally broadest then gradually attenuate, glabrous, only laterally setose, with nine regular rows of distinct punctures, plus scutellar row of punctures and row abutting lateral margin of elytra, interstices convex, apex between rows 6 and 7 with a prominent tubercle; metathorax: legs rusty brown with base of tibiae somewhat lighter, claws appendiculate, fore tibiae slightly bend.

A b d o m e n.Sternitesdarkbrown,withshortwhitesetae,sterniteVIIwithashallow fovea, tergites and pygidium light brown, sternite III as long as sternites IV to VII along midline; aedeagus ( Figs 7, 8 View Figs 1-13 ), length of the aedeagus: 1.0 mm.

D e s c r i p t i o n o f f e m a l e. Dorsum coloured as in male, mandibles, clypeus and labrum simple, pronotum with wrinkles more shallow than in male; elytral interstices with weak transverse wrinkles, sternites dark brown except for yellowish brown lateral margins, tergites and pygidium yellowish brown, thorax dark brown; pygidium with a distinct longitudinal ridge at middle; ovipositor ( Fig. 43 View Figs 33-43 ); size [mm]: length 3.2-3.3, width of elytra at humeri 2.1-2.15, length of elytra 2.2-2.3; length of pronotum 1.15-1.25, maximum width 2.1-2.2.

D i f f e r e n t i a l d i a g n o s i s.Differsfromallotherspeciesof Scaphodius with densely punctured pronotum by the apical tubercle on each elytron, and in the apical pair of teeth above the apical margin of the male clypeus.

D i s t r i b u t i o n a n d b i o l o g y. Known from central and north New Caledonia mainland.

E t y m o l o g y. Tuberculatus means covered with wart-like projections, the name refers to the two tubercles on the elytra.