Nebria brevicollis (Fabricius)

McGregor, Robert R., Goulet, Henri & LaBonte, James R., 2021, First western Canadian records of NEbrIa brEVICOLLIS (Coleoptera: Carabidae) and establishment of populations in Coquitlam, British Columbia, Canada, The Canadian Entomologist 153 (2), pp. 237-243 : 238

Nebria brevicollis (Fabricius)

Species description and identification

Diagnosis. Body dark brown but reddish-brown on tibiae, tarsi, palpi, and antennae. Pronotum with two lateral setae on each side (one in anterior third and one at posterior angle); densely punctate across entire base; each lateral margin strongly sinuate, with the margins anterior of the basal margin virtually parallel; posterior angles acute. Elytra widest near middle, with striae densely and coarsely punctate. Metacoxa and abdominal sternites 3–5 with one seta sublaterally. Hind wings fully developed.

The habitus figure ( Fig. 1) should be sufficient to distinguish adults from other genera of co-occurring carabids similar in colour and size. Other species of Nebria in areas where N. brevicollis are apt to be found lack the coarse and dense punctures at the base of the pronotum, and along the elytral striae, have only one seta along each pronotal lateral margin versus the two setae of N. brevicollis , or have lateral margins of the pronotum that are less sinuate. Furthermore, other species of Nebria at low or modest elevations are found along the margins of beaches, streams, rivers, and snow patches. In contrast, N. brevicollis occurs in industrial sites, agricultural fields, city parks, gardens, and forests ( LaBonte 2011).