Bembidion (Zecillenus) albescens (Bates, 1878)

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 : 11-12

publication ID

https://doi.org/ 10.5281/zenodo.5181756

publication LSID

lsid:zoobank.org:pub:367B2C10-0F57-46E6-AAB5-EDF240370778

DOI

https://doi.org/10.5281/zenodo.5190983

persistent identifier

https://treatment.plazi.org/id/980DC26F-E327-FFC8-FF6D-FBB09607FB91

treatment provided by

Felipe (2021-08-07 00:45:08, last updated by Plazi 2023-11-03 19:57:42)

scientific name

Bembidion (Zecillenus) albescens (Bates, 1878)
status

 

Bembidion (Zecillenus) albescens (Bates, 1878) View in CoL

Fig. 2 View Figures 1–4 , 38 View Figures 37–44 , 73 View Figures 71–76 , 109 View Figures 109–110

Cillenum [sic] albescens Bates, 1878a: 193 . Type locality: Tairua, CL.

Bembidion (Cillenus) albescens: Csiki 1928: 130 View in CoL .

Zecillenus albescens: Lindroth 1980: 183 View in CoL .

Bembidion (Zecillenus) albescens: Toledano 2005: 130 View in CoL .

Description. Body length 3.9–4.7 mm. Pale testaceous; head mostly dark brown to black; disc of pronotum usually piceous; elytra with a black or dark brown (ND) triangular discal marking (reaching interval 7) and interval 2 infuscated behind middle; antennae pale testaceous with segments 5–11 infuscated basally; legs mostly pale testaceous, with apex of femora and base of tibiae infuscated; abdomen piceous. Microsculpture obsolete, with traces of transverse meshes (microlines) on disc of head and pronotum; strong on disc of elytra, moderately transverse (male) or isodiametric (female), granulate elsewhere. Head, pronotum, and disc of elytra shiny, remainder of elytra dull; metallic lustre present on disc of elytra (aeneous). Thorax. Pronotum widest before middle; sides moderately rounded anteriorly, not sinuate posteriorly; posterolateral angles moderately obtuse, with extreme tip rectangular; laterobasal foveae shallow, ill-defined (vaguely elongate), short, not reaching basal margin. Elytra. Subelliptical, widest before middle. Shoulders prominent. Sides strongly rounded anteriorly, oblique posteriorly. Striae incomplete, barely suggested and impunctate laterally and apically; striae 2–5 well impressed, very deep and finely punctate on disc; striae 6–7 obsolete. Intervals moderately convex on disc. Lateral margins moderately widened subapically; subapical tooth rounded. Subapical sinuations moderately strong. Sutural apices angularly rounded. Apex strongly rounded. Aedeagus. Lateral view ( Fig. 38 View Figures 37–44 ): very strongly arcuate, slightly widened in apical half; base slightly convex dorsally; middle slightly convex dorsally, almost straight ventrally; apex subtriangular, concave dorsally and ventrally, with extreme tip wide and long.

Material examined. 301 specimens ( AMNZ, JNNZ, LUNZ, NZAC).

Geographic distribution ( Fig. 73 View Figures 71–76 ). North Island: AK–Long Bay. Pakiri Beach. Tawharanui Regional Park. BP–Oruaiti Beach. Waiotahi Beach. CL–Great Barrier Island (Awana Bay; Kaitoke Beach; Whangapoua Beach). Opoutere Beach. Otama Beach. Port Jackson. Tairua. GB–Anaura Bay. Te Araroa. ND–Mimiwhangata Coastal Park. Ocean Beach. Ruakaka.

Ecology. Coastal lowland. Fossorial. Banks of meandering estuarine streams (2–3 m wide) running through sand dunes ( Fig. 109 View Figures 109–110 ), just above the highest tidal line, at a certain distance (2–3 m) from water. Open ground; wet, sandy (white, yellow), bare soil. Nocturnal; hides during the day in the sand. Gregarious. Occurs in association with staphylinids ( Coleoptera ) and Bembidion (Zeperyphodes) nesophilum .

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

Dispersal power. Brachypterous (incapable of flight). Moderate runner. Vagility limited by flight incapacity.

Collecting techniques. Pouring water over the ground; treading the soil with the feet.

References. Larochelle and Larivière 2001: 86 (as Zecillenus albescens View in CoL ; catalogue; biology, dispersal power, ecology, geographic distribution, references), 2007: 110 (as Bembidion (Zecillenus) albescens View in CoL ; updated checklist).

Remarks. Lindroth (1980) recorded four localities for this species; it is now known from over 17 localities in the Northland (ND), Auckland (AK), Coromandel (CL), Bay of Plenty (BP), and Gisborne (GB) regions. Northland (ND) populations of this species are more lightly colored.

Bates, H. W. 1878 a. Additions to the geodephagous fauna of New Zealand. Entomologist's Monthly Magazine 14: 191 - 196.

Csiki, E. 1928. Carabidae: Mormolycinae, Harpalinae. Partes 97 et 98. p. 1 - 345. In: W. Junk and S. Schenkling (eds.). Coleopterorum Catalogus. Junk; Berlin. 1933 p.

Larochelle, A., and M. - C. Lariviere. 2001. Carabidae (Insecta: Coleoptera): catalogue. Fauna of New Zealand 43: 1 - 281.

Lindroth, C. H. 1980. A revisionary study of the taxon Cillenus Samouelle, 1819 and related forms (Coleoptera: Carabidae, Bembidiini). Entomologica Scandinavica 11: 179 - 205.

Toledano, L. 2005. The Australian species of Bembidion Latreille, 1802: a taxonomic treatment with notes about Gondwana as an evolutionary source area (Coleoptera, Carabidae, Bembidiini). p. 73 - 136. In: M. Daccordi and P. M. Giachino (eds.). Results of the Zoological missions to Australia of the Regional Museum of Natural Sciences of Turin, Italy, II. Monografia del Museo Regionale de Scienze Naturali, Torino 42: 1 - 644.

Gallery Image

Figures 1–4. Dorsal habitus. 1) Bembidion karikari new species. 2) B. albescens. 3) B. alacre. 4) B. tepaki new species. Scale line = 1 mm.

Gallery Image

Figures 37–44. Aedeagi, lateral. 37) Bembidion karikari new species. 38) B. albescens. 39) B. alacre. 40) B. tepaki new species. 41) B. waimarama new species. 42) B. puponga new species. 43) B. tillyardi. 44) B. chalmeri.

Gallery Image

Figures 71–76. Species distribution maps. 71) Bembidion actuarium. 72) B. alacre. 73) B. albescens. 74) B. anchonoderus. 75) B. brullei. 76) B. bullerense new species.

Gallery Image

Figures 109–110. Species habitats, Bembidion (Zecillenus). 109) Auckland (AK), Tawharanui Regional Park, B. albescens. 110) Auckland (AK), Whatipu, B. alacre.

AMNZ

Auckland Institute and Museum

LUNZ

Lincoln University Entomology Research Museum

NZAC

New Zealand Arthropod Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Carabidae

Genus

Bembidion