Acronymolpus, Samuelson, G. Allan, 2015

Samuelson, G. Allan, 2015, Acronymolpus, a new genus of Eumolpinae, endemic to New Caledonia (Coleoptera, Chrysomelidae), ZooKeys 547, pp. 93-102 : 94-95

Taxon classification Animalia Coleoptera Chrysomelidae

Acronymolpus gen. n.

Description.

Proepisternal margin straight; pygidial groove present; metatibial apex entire, lacking emargination; claws appendiculate.

Body fusiform, stout, with elytra strongly narrowed from robust basal region to preapex. Head: frontal surfaces flattened; postantennal swellings ± subtriangular or oblique, not conspicuous; oblique suture present, shallow internally, deeper along upper eye margin; coronal suture deep along mid-vertex; eye subovate. Antenna slender, elongate and attaining apical 1/3 or more of elytron. Pronotum convex with anterolateral area strongly descended and appearing narrowed in dorsal view; base broadly and shallowly biconvex; posterior angle small, ± dentate; lateral margin convex and narrowed anteriorly; anterior angle slightly produced, subangulate; disc moderately to strongly punctate. Scutellum small, triangular, surface nearly smooth. Elytral punctures basically arranged in regular striae but the inner discal rows quite obliterated and confused on the basal half before they become organized into straight rows apically. Elytral epipleuron narrow to preapex and continued to apex as a thin thread. Wing normally developed.

Ventral surfaces: prosternum subquadrate, flattened; hypomeron ± smooth, impunctate; metasternum broadly and gently convex, ± smooth; first abdominal ventrite (Fig. 1C) not quite trisected by enlarged metacoxae on each side but on dissection with thin shelf-like extensions beneath metacoxae; intercoxal piece of forming an acute, steeply inclined triangle anteriorad; remaining ventrites strongly narrowed posteriorly, collectively subtriangular in outline. Legs: femora subclavate; metacoxa enlarged; tibiae slender, subequal to femur length.

Type species.

Acronymolpus joliveti sp. n.

Etymology.

acro (height) + nyma (name) + molpus (for Eumolpus ); masculine.