Amarophilus lomondensis Larochelle and Larivière, 2022

Larochelle & Larivière, Marie-Claude, 2022, Synopsis of the tribe Amarotypini in New Zealand (Coleoptera: Carabidae), Insecta Mundi 2022 (942), pp. 1-30 : 17

Amarophilus lomondensis Larochelle and Larivière , new species

Fig. 19 , 33 , 36

Amarophilus lomondensis Larochelle and Larivière , new species. Holotype: male (AMNZ) labeled “[ NEW ZEALAND OL] Ben Lomond Mt. [=Mount] 7-1-42 (hand-written) / C. E. Clark Collection (typed) / AMNZ 31970 Auckland Museum New Zealand (green label; typed) / HOLOTYPE ♂ Amarophilus lomondensis Larochelle & Larivière, 2022 (red label; typed).” Paratypes: one male and two females (AMNZ) from the same locality as the holotype, bearing blue paratype labels.

Description. Body length 6.7–6.9 mm; subovate. Head, pronotum, elytra, and abdomen rufopiceous; antennal segments 1–4 rufotestaceous (infuscate apically), 5–11 rufopiceous; palpi and legs rufotestaceous. Microsculpture weak, isodiametric (almost granulate) on head, isodiametric on pronotum, and moderately transverse (brick-like) on elytra. Iridescence present on elytra. Shiny on head, pronotum, and elytra. Head. Labrum strongly transverse. Eyes slightly convex; setiferous puncture inserted postmedially on inner side of each eye. Frontal furrows moderately deep, subparallel posteriorly. Thorax. Pronotum slightly convex, impunctate, obsoletely wrinkled across base, trapezoid, widest basally; apex subtruncate; anterolateral angles poorly developed, obtuse; anterior bead incomplete, obsolete medially; sides slightly rounded anteriorly and oblique posteriorly, slightly sinuate posteriorly; lateral beads narrow, slightly widened from apex to base; lateral depressions narrow anteriorly, widened posteriorly; posterolateral angles acute, strongly projected laterally; laterobasal foveae rounded, moderately wide, very deep, separated from lateral depressions by a pronounced convexity; posterior bead obsolete; base narrower than elytral base. Legs. Pro- and mesotarsomeres 1–4 of both sexes moderately dilated. Elytra. Strongly convex. Shoulders slightly rounded. Sides strongly rounded. Striae deep, coarsely punctate; stria 3 with two poorly developed, fine setiferous punctures. Intervals depressed or slightly convex. Umbilicate series with 12 or 13 setiferous punctures. Apices angulate. Aedeagus. Lateral view ( Fig. 19 ): strongly arcuate, slender, strongly widened in apical half; base moderately convex dorsally; middle strongly convex dorsally, strongly concave ventrally, without dorsal membranous area; apex bisinuate dorsally, almost straight ventrally, with extreme tip very wide, rounded. Dorsal view: asymmetrical (ostium of membranous area deflected to the right).

Material examined. 10 specimens ( AMNZ).

Geographic distribution ( Fig. 36 ). South Island: OL–Ben Lomond. Minaret Peaks.

Ecology. Alpine. Epigean. Fellfields. Open ground. Probably nocturnal.

Biology. Seasonality: December–January. Predacious (based on mouthpart morphology).

Dispersal power. Subapterous (incapable of flight).

Collecting technique. Unknown.

Remarks. This species is named after the type locality Ben Lomond (OL) and the Latin suffix – ensis denoting a place, locality, or country. Amarophilus lomondensis is morphologically close to A. wanakensis . In addition to diagnostic characters of the male genitalia, A. lomondensis has the following distinguishing features: antennae bicolored, segments 1–4 rufotestaceous (infuscate apically), 5–11 rufopiceous; frontal furrows moderately deep, subparallel posteriorly; pronotum slightly convex, with base narrower than elytral base and sides slightly sinuate posteriorly; elytra strongly convex, striae deep and coarsely punctate, stria 3 with two setiferous punctures. Amarophilus lomondensis and A. wanakensis occur in the Otago Lakes region (OL) of the South Island where they are known only from a few localities.

Figures

Figures 15–20. Aedeagus, lateral. 15) Amaroxenus glacialis new species. 16) Amaroxenus huttensis new species. 17) Amaroxenus kahurangiensis new species. 18) Amarophilus otagoensis new species. 19) Amarophilus lomondensis new species. 20) Amarophilus wanakensis new species.

Figures 33–34. Dorsal habitus. 33) Amarophilus lomondensis new species. 34) Amarophilus wanakensis new species. Scale line = 1 mm.

Figures 36–41. Species distribution maps. 36) Amarophilus lomondensis new species. 37) Amarophilus otagoensis new species. 38) Amarophilus rotundicollis new species. 39) Amarophilus wanakensis new species. 40) Amarotypus edwardsii. 41) Amarotypus fiordlandensis new species.