Oopterus marrineri Broun, 1909

Larochelle, Larivière, Marie-Claude, Larochelle & Larivière, 2017, Synopsis of the tribe Zolini in New Zealand (Coleoptera: Carabidae), Insecta Mundi 2017 (594), pp. 1-110 : 47-48

Oopterus marrineri Broun, 1909

Fig. 48 , 94 , 132

Oopterus marrineri Broun, 1909: 88 . Type locality: Campbell Island [CA].

Oopterus elongellus Broun, 1909: 89 . Type locality: Campbell Island [CA]. Synonymized by Darlington 1964: 336.

Pseudoopterus marrineri: Csiki 1928: 225 .

Pseudoopterus elongellus: Csiki 1928: 225 .

Oopterus marrineri: Johns 1974: 297 .

Description. Body length 4.9–5.4 mm. Head, pronotum, elytra, and abdomen mostly reddish brown (forebody slightly paler); abdomen yellow laterally and apically; lateral margins and suture of elytra reddish; antennae, palpi, and legs reddish. Microsculpture strong, isodiametric on head, moderately transverse on pronotum and elytra. Iridescence absent. Very shiny, without metallic luster. Head. Labrum strongly transverse, slightly emarginate anteriorly. Antennae submoniliform, short: segment 1 (scape) moderately long, about 2x longer than its maximum width. Frontal furrows wide, shallow, convergent. Eyes moderately convex; two setiferous punctures on inner side of each eye. Tempora strongly inflated (about two-thirds as long as eyes). Mentum: medial tooth entire, acute apically, moderately shorter than lateral lobes. Paraglossae membranous, prominent, much longer than ligula. Thorax. Pronotum moderately convex, impunctate, wrinkled across base, slightly transverse, moderately cordate, widest before middle; apex truncate; anterolateral angles poorly developed, obtusely rounded; anterior bead incomplete, obsolete medially; sides strongly rounded, slightly sinuate posteriorly; lateral grooves shallow, very long (about two-thirds as long as pronotum); two setiferous punctures on each side; posterolateral angles obtuse; posterolateral carinae blunt, very long (about as long as adjoining foveae); laterobasal foveae well defined, impunctate, moderately deep and wide, rounded, not prolonged forward, simple; posterior bead absent; base subtruncate, much narrower than pronotal apex, about as wide as elytral base. Legs. Short. Elytra. Moderately convex, ovate, widest about middle. Basal margin incomplete, reaching about stria 4. Shoulders moderately rounded. Sides strongly rounded. Scutellar striole obsolete. Striae complete, shallow, impunctate or finely punctate; stria 3 with three setiferous punctures. Recurrent stria long, sharp, directed apically toward stria 5 or 6. Subapical seta present. Intervals depressed. Sutural apices obtusely rounded. Abdomen. Last visible sternum (sternum VII): male with two apical and two medial ambulatory setae; female with four apical ambulatory setae. Aedeagus. Lateral view ( Fig. 94 ): moderately arcuate, narrowed in apical half; base strongly biconvex dorsally; middle strongly sinuate dorsally, moderately concave ventrally, with dorsal membranous area moderately wide and long; apex subtriangular, moderately concave dorsally, slightly concave ventrally, with extreme tip wide and long. Dorsal view: narrow, asymmetrical (ostium of membranous area deflected to right); apex straight; basal orifice narrow, closed anteriorly, moderately distant from membranous area. Parameres with two or three apical setae.

Material examined. 201 specimens ( AMNZ, CMNZ, MONZ, NZAC).

Geographic distribution ( Fig. 132 ). Subantarctic Islands: CA.

Ecology. Lowland, montane, subalpine, alpine. Epigean. Supralittoral zone; peaty scrublands; tussock swards; fellfields; mollymawk and penguin colonies. Open or shaded ground. Nocturnal; hides during the day under stones, in leaf litter, under pieces of wood, in/under tussock clumps and moss, and under mat plants. Gregarious.

Biology. Seasonality: September–January, May, August. Tenerals: December–January. Predacious (based on mouthpart morphology). Occasionally infested with mites.

Dispersal power. Subapterous (incapable of flight). Slow runner.

Collecting techniques. Lifting stones and pieces of wood; sifting leaf litter and moss; inspecting vegetation clumps.

References. Larochelle and Larivière 2001: 75 (catalogue; biology, dispersal power, ecology, geographic distribution, references), 2016: 21 (list).

Figures

Figures 47–50. Dorsal habitus. 47) Oopterus ocularius. 48) O. marrineri. 49) O. anglemensis new species. 50) O. nanus new species. Scale line = 1 mm.

Figures 90–97. Aedeagi, lateral. 90) Oopterus trechoides new species. 91) O. sculpturatus. 92) O. taieriensis new species. 93) O. ocularius. 94) O. marrineri. 95) O. anglemensis new species. 96) O. nanus new species. 97) O. garnerae new species.

Figures 130–135. Species distribution maps. 130) Oopterus laeviventris. 131) O. lewisi. 132) O. marrineri. 133) O. marrisi new species. 134) O. mohiensis new species. 135) O. monticola new species.