Bembidion (Zeplataphus) granuliferum 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 : 24

Bembidion (Zeplataphus) granuliferum Lindroth, 1976

Fig. 13 , 48 , 84

Bembidion (Zeplataphus) granuliferum Lindroth, 1976: 175 . Type locality: Motueka River, NN.

Description. Body length 5.2–6.8 mm. Black; antennae and legs piceous (antennal segment 1 rufous, at least underneath). Microsculpture of elytra very strong, regularly isodiametric in male, more or less granulate in female. Dull (shiny, other Zeplataphus species), with slight metallic lustre (green, blue, aeneous). Thorax. Pronotum moderately convex; thin raised lateral bead complete, well developed near posterolateral angles; sides moderately rounded anteriorly, moderately sinuate posteriorly; posterolateral angles rectangular, rounded at tip; laterobasal foveae moderately deep, oblong, short, not reaching basal margin. Elytra. Subdepressed, elongate. Scutellar striole consisting of a row of punctures. Striae complete, shallow, finely punctate; stria 7 strong, finely punctate. Intervals depressed; interval 3 with four or five discal setiferous punctures. Apical striole deep, connected to stria 5. Sutural apices rounded. Abdomen. Last visible sternum (sternum VII) of female with numerous short setae in addition to four long ambulatory setae. Aedeagus. Lateral view ( Fig. 48 ): moderately arcuate; base slightly convex dorsally; middle strongly convex dorsally with a slight concavity towards its apex, rather straight ventrally; apex subtriangular, rather straight dorsally, slightly concave ventrally, with extreme tip narrow and long.

Material examined. 369 specimens ( CMNH, JNNZ, LUNZ, MONZ, NZAC).

Geographic distribution ( Fig. 84 ). North Island: BP, GB, HB, RI, WA, WI, WN. South Island: BR, DN, KA, MB, MC, MK, NC, NN, SC, WD.

Ecology. Lowland. Epigean. Banks and beds of big rivers (often near their mouths), close to the water. Open ground; wet, gravelly, bare soil. Nocturnal; hides during the day deep under stones and among gravel. Gregarious.

Biology. Seasonality: September–April, July. Tenerals: December–March. 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. Turning stones; raking the soil.

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

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 45–52. Aedeagi, lateral. 45) Bembidion brullei. 46) B. rotundicolle. 47) B. tairuense. 48) B. granuliferum. 49) B. maorinum maorinum. 50) B. charile. 51) B. dehiscens. 52) B. actuarium.

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.