Schistoglossa (Boreomorpha) carexiana Klimaszewski 2009

Description. Body length 2.8–3.0 mm, width 0.4–0.5 mm, approximately uniformly dark brown with slightly paler tip of abdomen, legs, antennae, and mouthparts (Fig. 7); integument with weak microsculpture, sculpticells irregularly hexagonal, pubescence short, except slightly longer on head and abdomen, yellowish-brown in artificial light, moderately dense. Head slightly elongate, rounded posteriorly, carinate basally, tempora approximately as long as twice the maximum diameter of eye as seen from above (Fig. 7); antennae slim with all articles elongate (Figs 7); pronotum slightly transverse, broadly rounded laterally and posteriorly, broadest in apical half, pubescence directed anteriorly on apical third of the midline and laterally forming arched lines elsewhere (Fig. 7); elytra strongly transverse, and broadening posteriorly, hind margin nearly straight, pubescence directed obliquely posteriad (Fig. 7); abdomen parallel-sided, three basal tergites deeply impressed basally (Fig. 7). Male. Median lobe of the aedeagus broad and flattened (Fig. 61), venter of tubus sinuate, apex projected ventrally (Fig. 62), apical sclerites of internal sac lunar-shaped in lateral view (Fig. 62), and basal sclerites narrowly elongate; paramere as illustrated (Fig. 60); tergite 8 transverse and entire, apical margin without or with small emargination (Fig. 63); sternite 8 elongate and rounded posteriorly, antecostal suture sinuate (Fig. 64). Female. Spermatheca club-shaped with capsule spherical, bearing internal ribbings and without apparent apical invagination, stem moderately narrow and approximately straight (Fig. 65). Tergite and sternite 8 as illustrated (Figs 66, 67).

Geographic distribution (Map 6). Known only from the Queen Charlotte Islands of British Columbia, Canada.