Acronymolpus, a new genus of Eumolpinae, endemic to New Caledonia (Coleoptera, Chrysomelidae) Author Samuelson, G. Allan text ZooKeys 2015 547 93 102 http://dx.doi.org/10.3897/zookeys.547.9698 journal article http://dx.doi.org/10.3897/zookeys.547.9698 1313-2970-547-93 D6B55833645C43939A92002154C846A4 D6B55833645C43939A92002154C846A4 Taxon classification Animalia Coleoptera Chrysomelidae Acronymolpus gressitti sp. n. Fig. 3 Description (Holotype). Body moderately robust, broadest across elytral humeral region then moderately narrowed to rounded apex. Body surfaces and appendages largely piceous; antennal segments 1-2 yellow, 3-4 brownish; tarsal pads yellowish. Dorsum glabrous, venter: metasternum and first abdominal ventrite each with group of elongate pale setae. Body length 2.35 mm; body breadth 1.4 mm. Head: frontal surfaces largely smooth, with a hint of fine sculpture; upper frons with a few large, deep punctures; postantennal swellings +/- subquadratae; oblique suture becoming deep above eye; vertex with coronal suture deep, with surfaces on each side convexly swollen; interantennal space broad, flat, about 3 x as broad as antennal socket; orbit slightly broader than antennal socket; interocular space with breadth subequal to maximum eye diameter; gena not quite 0.5 x as deep as eye. Antenna rather slender, attaining apical 1/3 of elytron; relative lengths of segments (cmm): 18: 12: 18: 18: 20: 17: 20: 20: 20: 20: 30; apical 5 segments distinctly heavier than preceding ones. Prothorax 0.59 x as broad as long; base broadly convex across middle; lateral margin moderately convex; disc uniformly convex and rather uniformly punctured, punctures +/- elliptical and commonly 1 x as large as interspaces; interspaces smooth with hint of microsculpture. Elytron smooth and shining; lateral margin moderately narrowed from posthumeral area to preapex; apex convex: humerus slightly produced, smooth; inner basal disc with punctures deep, and larger than pronotal ones. Ventral surfaces: hypomeron subshining, with fine isodiametrical sculpture; metastrnum with isodiametric sculpture; metacoxae enlarged and ending slightly before apical margin of ventrite 1; relative lengths of abdominal ventrites (cmm): 32: 8: 6: 10: 16; surfaces subshining, with moderate isodiametric sculpture; first abdominal ventrite moderately inclined between coxae; last ventrite with median impression before apex. Legs: femora subclavate, surfaces with fine sculpture; metafemur and tibia subequal in length. Measurements: BL 235 mm; BB 1.4 mm; HB 82 cmm; IAS 20 cmm; AS 6 cmm; ORB 7 cmm; IOS 36 cmm; EYE 34 x 26 cmm; GENA 16 cmm; PNL 70 cmm; PNB 118 cmm. Holotype. NEW CALEDONIA: Mt Panie, 500 m, 3.iii.1981, on Freycinetia , J. L. Gressitt collector (BPBM 16,843). Remarks. The less tapered body form of this species separates it from Acronymolpus meteorus , sp. n., which is very strongly narrowed apically. This is the only specimen of the genus with any information on plant associates; in this case Freycinetia . The name honors the late J. Linsley Gressitt, who contributed greatly to entomology of the Pacific and beyond.