Platynus Bonelli, 1810

Larochelle & Larivière, Marie-Claude, 2021, Synopsis of the tribe Platynini in New Zealand (Coleoptera: Carabidae), Insecta Mundi 2021 (864), pp. 1-96 : 6

Genus Platynus Bonelli, 1810

Fig. 37 , 80 , 159

Platynus Bonelli 1810 : Tabula Synoptica.

Type species. Carabus angusticollis Fabricius, 1801 (= Carabus assimilis Paykull, 1790 ), by subsequent monotypy in Germar (1817: 303).

Description ( New Zealand). Body length 13.0– 14.2 mm. Color mostly dark. Metallic luster absent. Dorsal surface mostly glabrous. Forebody narrow in comparison to elytra. Head. Narrow. Mandibles moderately long. Labrum emarginate anteriorly. Eyes strongly convex, touching buccal fissures; two setiferous punctures on inner side of each eye. Tempora not inflated. Neck constriction deep dorsolaterally. Mentum tooth entire, rounded apically; two small circular foveae; two long setae. Submentum with four long setae. Palpi with terminal segment truncate apically. Ligula with two setae. Paraglossae glabrous. Thorax. Pronotum subquadrate, strongly cordate; two setiferous punctures (anterior and posterior) on each side. Prosternum glabrous apically, not compressed into a vertical ridge. Legs. Very long. Metacoxae with two posteroventral setae. Metafemora with two posteroventral setae. Protibiae with dorsal longitudinal groove; cleaning organ with two clip setae. Meso- and metatarsomeres 1–4 well developed, tricarinate dorsally, deeply bisulcate laterally. Metatarsomeres 4 strongly bilobed and asymmetrical apically. Metatarsomeres 5 setose ventrally. Elytra. Oblong. Free along suture (hindwings fully developed). Shoulders broad, rounded. Basal margin complete, reaching about scutellum. Sides widest about middle. Scutellar setiferous pore visible. Scutellar striole very long. Striae complete, consisting of impressed lines. Interval 3 with three setiferous punctures. Umbilicate series with 15–19 setiferous punctures. Apices obtusely rounded. Abdomen. Sterna IV–VI: both sexes with two long apical ambulatory setae. Sternum VII (last visible sternum): male with two long apical ambulatory setae; female with four long apical ambulatory setae. Aedeagus. Lateral view: moderately arcuate; basal lobe of basal bulb present; internal sac without scale-like sclerites. Dorsal view: narrow, asymmetrical (ostium of membranous area deflected to the left); basal bulb close to membranous area.

References. Larochelle and Larivière 2001: 138–139 (catalogue), 2007: 82 (description, ecology, geographic distribution, references), 2016: 38 (list).

Remark. This worldwide genus is represented by a single species, which occurs on the North Island, South Island, and Stewart Island.

Figures

Figures 37–40. Dorsal habitus. 37) Platynus macropterus. 38) Notagonum chathamense. 39) N. lawsoni. 40) N. feredayi. Scale line = 1 mm.

Figures 80–86. Aedeagus, lateral. 80) Platynus macropterus. 81) Notagonum chathamense. 82) N. lawsoni. 83) N. feredayi. 84) N. submetallicum. 85) Prosphodrus mangamuka new species. 86) P. waltoni.

Figures 154–159. Species distribution maps. 154) Maoriplatynus marrisi new species. 155) Notagonum chathamense. 156) N. feredayi. 157) N. lawsoni. 158) N. submetallicum. 159) Platynus macropterus.