Schistoglossa (Schistoglossa) pelletieri Klimaszewski & Webster

Webster, Reginald P., Klimaszewski, Jan, Bourdon, Caroline, Sweeney, Jon D., Hughes, Cory C. & Labrecque, Myriam, 2016, Further contributions to the Aleocharinae (Coleoptera, Staphylinidae) fauna of New Brunswick and Canada including descriptions of 27 new species, ZooKeys 573, pp. 85-216 : 137-139

Taxon classification Animalia Coleoptera Staphylinidae

Schistoglossa (Schistoglossa) pelletieri Klimaszewski & Webster sp. n. Figs 255-262

Holotype (male).

Canada, New Brunswick, Albert Co., Caledonia Gorge P.N.A., 45.7930°N, 64.7764°W, 1.VII.2011, R.P. Webster, coll. // small rocky clear-cold river (Caledonia Creek), sifting drift material, tree bud material, in eddy area (LFC). Paratypes: Canada, New Brunswick, same data as for holotype (2 ♂, 1 ♀, RWC). Restigouche Co., Jacquet River Gorge P.N.A., 47.8204°N, 66.0833°W, 14.VI.2009, R.P. Webster // Jacquet River, river margin among cobblestones (1 ♀, LFC; 1 ♀, RWC).

Etymology.

This species is named for our colleague Georges Pelletier (LFC) who participated in many of our entomology projects.

Description.

Body length 3.3-3.5 mm, narrowly oval, uniformly dark piceous with tibiae, tarsi, and base of antennae and mouthparts reddish brown (Fig. 255); integument glossy, pubescence short, except slightly longer on head and abdomen, yellowish brown in artificial light, sparse; head small, distinctly narrower than pronotum and elytra, approximately round with protruding apical part, feebly carinate basally, tempora as long as approximately three times maximal diameter of eye as seen from above; mandibles with apex split; antennae slim with articles V–X elongate or subquadrate to slightly transverse; pronotum slightly transverse, distinctly narrower than elytra, broadly arcuate laterally and posteriorly, broadest near base, strongly converging apically, pubescence directed posteriad on midline of disk and obliquely laterad elsewhere; elytra moderately transverse, subparallel, hind margin truncate, pubescence directed slightly obliquely posteriad; abdomen arcuate laterally, three basal tergites strongly impressed basally. Male. Median lobe of aedeagus with large bulbus in dorsal view (Fig. 256), venter of tubus arcuate, and apex slightly produced ventrally in lateral view (Fig. 257), structures of internal sac as illustrated (Figs 256, 257); tergite VIII with apical margin truncate and crenulate, with two moderate lateral teeth (Fig. 258); sternite VIII broadly parabolic, obtusely angulate apically (Fig. 259). Female. Tergite VIII broadly arcuate apically (Fig. 260); sternite VIII broadly rounded apically (Fig. 261); spermatheca S-shaped, with capsule tubular, angularly connected to stem, which is sharply curled at base (Fig. 262).

Distribution.

Known only from NB, Canada.

Natural history.

Adults of Schistoglossa pelletieri were sifted from drift material (tree bud material) along the margin of a small clear-cold river in an eddy area and found among cobblestones along a fast-flowing river. Specimens were collected during June and July.

Comments.

This species is readily distinguishable from other members of the subgenus by its large (3.3-3.5 mm long) dark piceous body, small head, and distinctively shaped genitalia (Figs 256-262). For other species of the genus in Canada, see Klimaszewski et al. (2009a).