Bembidion (Zeplataphus) maorinum levatum Lindroth, 1976

Larochelle, André, Zeperyphodes, Broun & Larivière, Marie-Claude, 2015, Synopsis of the genus Bembidion Latreille in New Zealand (Coleoptera: Carabidae: Bembidiini), Insecta Mundi 2015 (415), pp. 1-78 : 26-27

Bembidion (Zeplataphus) maorinum levatum Lindroth, 1976

Fig. 16 , 88

Bembidion (Zeplataphus) maorinum levatum Lindroth, 1976: 171 . Type locality: Mangakirikiri Stream, Urewera National Park, GB.

Description. Body length 5.8–7.9 mm. Black; antennae and legs black (antennal segment 1 rufous underneath and tibiae often piceous). Microsculpture absent on elytra. Very shiny, with moderately strong metallic lustre (aeneous or greenish, rarely bluish). Thorax. Pronotum moderately convex, much wider than head (contrary to other Zeplataphus species); thin raised lateral bead incomplete, obsolete near posterolateral angles; sides strongly rounded anteriorly, moderately sinuate posteriorly; posterolateral angles subrectangular, somewhat sharp at tip; laterobasal foveae moderately deep, oblong, short, not reaching basal margin. Elytra. Slightly convex, short. Scutellar striole consisting of a row of punctures. Striae 2–6 complete, deep, coarsely punctate; stria 7 strong, complete although slightly evanescent apically, coarsely punctate. Intervals depressed, becoming slightly convex posteriorly; interval 3 with three or four discal setiferous punctures. Apical striole shallow, connected to stria 5. Sutural apices rounded. Abdomen. Last visible sternum (sternum VII) of female with four long ambulatory setae only. Aedeagus. As in B. m. maorinum .

Material examined. 255 specimens ( JNNZ, MONZ, NZAC).

Geographic distribution ( Fig. 88 ). North Island: AK, BP, GB, HB, RI, TO, WA, WI, WN, WO.

Ecology. Lowland, montane. Epigean. Banks and beds of rivers and brooks, at a certain distance (0–2 m) from water. Open ground; wet, gravelly, bare soil. Nocturnal; hides during the day deep among gravel and under stones and as well as around their edges. Gregarious.

Biology. Seasonality: September, November–April. Tenerals: December–January. Occasionally infested with fungi (Laboulbeniales). Defence mechanism: when alarmed, the adult escapes by running.

Dispersal power. Macropterous, probably capable of flight. Fast runner. Vagility likely favoured by flight capacity.

Collecting techniques. Raking the soil; turning stones.

Reference. Larochelle and Larivière 2001: 84–85 (catalogue; biology, dispersal power, ecology, geographic distribution, reference).

Figures

Figures 13–16. Dorsal habitus. 13) Bembidion granuliferum. 14) B. townsendi. 15) B. maorinum maorinum. 16) B. m. levatum. Scale line = 1 mm.

Figures 83–88. Species distribution maps. 83) Bembidion giachinoi. 84) B. granuliferum. 85) B. hokitikense. 86) B. karikari new species. 87) B. mangamuka new species. 88) B. maorinum levatum.