Cazeresia robusta, Gómez-Zurita & Cardoso, 2025

Gómez-Zurita, Jesús & Cardoso, Anabela, 2025, Systematics and evolution of the New Caledonian endemic genus Cazeresia (Coleoptera: Chrysomelidae, Eumolpinae), Arthropod Systematics & Phylogeny 83, pp. 127-170 : 127-170

publication ID	https://doi.org/10.3897/asp.83.e143543
publication LSID	lsid:zoobank.org:pub:9FC2F5B4-97ED-4E25-9ECF-7F670BB36DA5
DOI	https://doi.org/10.5281/zenodo.15594280
persistent identifier	https://treatment.plazi.org/id/6242FA49-79CC-5F49-91C7-AC68AE095BF4
treatment provided by	Arthropod Systematics & Phylogeny by Pensoft
scientific name	Cazeresia robusta
status	sp. nov.

Treatment

Cazeresia robusta sp. nov.

Figures 1 r View Figure 1 , 6 b View Figure 6 , 8 f View Figure 8 , 9 a View Figure 9

Species # 19 b: Papadopoulou et al., 2013, p. 481.

Cazeresia montana : Platania et al., 2024, p. 570.

Material.

Holotype: Male (Fig. 6 b View Figure 6 ), JGZC-NC 180 , Mont Kouakoué, open area near summit , -21.957585 166.53830, 1315 m, 17.iii.2008, J. A. Jurado-Rivera leg., Holotype Cazeresia robusta sp. nov. Gómez-Zurita & Cardoso [red label] ( JGZC) GoogleMaps . — Paratypes: JGZC: 1 female, JGZC-NC 650 , Mt. Kouakoué , -21.95758 166.53830, 1315 m, 17.iii.2008, P. Jolivet leg., Paratype Cazeresia robusta sp. nov. Gómez-Zurita & Cardoso [red label] GoogleMaps ; 2 males ( JGZC-NC 178 and JGZC-NC 179 and) and 1 female ( JGZC-NC 177 ), Mont Kouakoué, open area near summit , -21.957585 166.53830, 1315 m, 17.iii.2008, J. A. Jurado-Rivera leg., Paratype Cazeresia robusta sp. nov. Gómez-Zurita & Cardoso [red label] GoogleMaps .

Description.

Body elongate oval, moderately convex. Dorsum, venter, coxae and mandibles black with faint greenish metallic tinge on clypeus and pronotum, and purple reddish on frons and elytra; most of antennae and legs very dark reddish brown; labrum, scape and pedicel dark testaceous; palpi and apex of antennomeres 11 pale testaceous. Length: 7.3 mm; width: 4.2 mm (range of male paratypes: 7.8–8.0 mm long, 4.3–4.8 mm wide).

Frons with few small punctures anteriorly and supraocular sulci prolonged medially to almost middle of dorsal edge of well-defined supraantennal calli; clypeus slightly shorter than wide at apex, with punctures basally, more abundant and larger than on frons, and uniformly distributed micropunctures on whole surface; anterior border weakly emarginate. Eyes relatively small and about as wide as long, separate on frons by 2.9 × their transverse diameter. Relative proportions of antennomeres: 2.0-1.0 - 1.9 - 2.0 - 2.5 - 2.2 - 2.7 - 2.4 - 2.4 - 2.3 - 2.8. Pronotum 1.5 × wider than long at middle, weakly sigmoid at base, widest in front of middle; surface punctured mostly on lateral declivities and lacking micropunctures. Prosternal process as wide as transverse diameter of procoxae and strongly punctured anteriorly, with dense long, dishevelled fine dark yellowish setae, denser in anterior half. Mesoventrite strongly punctured, with dense long, fine setae. Metaventrite very short, shorter than prosternum, strongly microsculptured, with relatively dense large punctures and dense long, fine adpressed dark yellow setae. Elytra less than 1.2 × as long as ensemble width at widest point; sides weakly curved in basal half, widest at middle and gradually tapering to regular, slightly produced round apex in apical half; humeri obsolete; surface finely microreticulate, silky as pronotum, with relatively large punctures, smaller than intervals, arranged in eight rows with additional short scutellar and subhumeral rows, slightly confused anteriorly on disc; marginal interval weakly convex at middle. Legs slender, robust, with femora fusiform, enlarged medially, posteriorly at angle in metafemora; protibiae abruptly widened ventrally in apical 1 / 5 and metatibiae very gradually widening towards apex; mesotibiae as long as mesofemora; basitarsomeres enlarged, as wide as third tarsomere, shorter than second and third tarsomeres combined in all tarsi. First abdominal ventrite shorter at middle than four other ventrites combined, with median apodeme less than half as long as ventrite, subtrapezoidal, about as wide as mesosternal process; ventrites with fine microreticulation, fine punctures and abundant long fine, posteriorly adpressed pale yellow setae, except first ventrite, with strong, dense punctation at middle. Penis (Fig. 9 a View Figure 9 ) slender, regularly curved ventrally, with sides slightly concave in ventral view, as wide preapically as wide at base; apex elongate oval, arched distally with long median tooth, longer than wide at base; gonopore elongate elliptical, with distal end separated from apex of penis by distance as long as maximum width of gonopore; dorsal flap subtrapezoidal, longer than wide, covering less than basal half of gonopore. — Females. In this species, females lack the abrupt apical enlargement of protibiae characteristic of males. Spermatheca (Fig. 1 r View Figure 1 ) with cornu shorter than nodulus, weakly curved, bent more or less at right angle relative to nodulus; nodulus bulbous basally, with short protruding insertion of spermathecal gland submedially, opposite to cornu; spermathecal duct thin basally, inserted laterally near base of nodulus, oriented opposite to cornu and recurved parallel and slightly longer than nodulus, enlarged and unsclerotized close to base with slightly over half coil distally.

Diagnosis.

This species is almost identical to its sister C. montana Jolivet, Verma & Mille , and they are the only species currently in the genus with maximum width of elytra at middle and weak humeri. However, there are several differences between these species, including the stronger punctation on frons and clypeus of C. robusta sp. nov., the stronger and more abundant punctures on pronotum, the stronger and more confused elytral punctation, the stronger, denser punctation of the first abdominal ventrite, and the considerably longer apical tooth of the penis of C. robusta .

Derivatio nominis.

The name of the species is the Latin adjective (f.) rōbusta, meaning literally robust, hard, making reference to the solid build of this species.

Distribution.

The species was collected near the summit (1315 m) of Mont Kouakoué, a high peak in the northern part of the Massif du Sud, some 13 km southeast from Mont Humboldt (Fig. 8 f View Figure 8 ).