Psammostiba comparabilis

• Main Author: Gusarov, Vladimir I.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2003
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Coleoptera; Staphylinidae; Psammostiba; Psammostiba comparabilis; British Columbia; Canada; Queen Charlotte; Kodiak; Alaska
• Online Access: https://zenodo.org/record/6276789; https://doi.org/10.5281/zenodo.6276789

1. Psammostiba comparabilis (Mäklin in Mannerheim, 1853), comb. nov. (Figs. 64, 66, 68­77) Homalota comparabilis Mäklin in Mannerheim, 1853: 181. Atheta (Metaxya) comparabilis: Fenyes, 1920: 199 (as valid species). Atheta (Metaxya) comparabilis: Bernhauer & Scheerpeltz, 1926: 613 (as valid species). Atheta (Brundinia) comparabilis: Moore & Legner, 1975: 357 (as valid species). Philhygra comparabilis: Seevers, 1978: 266 (as valid species). Adota comparabilis: Lohse & Smetana, 1985: 294 (as valid species). Type material. Lectotype of Homalota comparabilis (designated by Lohse and Smetana (1985)), UNITED STATES: Alaska: Kodiak (MZHF). Additional material. UNITED STATES: Alaska: Kenai Peninsula Co.: 15 specimens, Homer, S shore of Homer spit, 59 º 36.33 'N 151 º 25.71 'W, sandy seashore, in seaweed (V.I.Gusarov), 22.vii. 1998 (AMNH, SPSU); California: Mendocino Co.: 2, Needle Rock, on beach (D.Giuliani), 6.x. 1974 (UCR); CANADA: British Columbia: 2, 4, Queen Charlotte Islands, Graham Island, Toe Hill, "ex on rocks in intertidal" (J.S.Ashe), 14.vii. 1988 (KSEM);, Victoria (CASC). Diagnosis. Psammostiba comparabilis can be distinguished from P. kenaii by larger body, larger aedeagus with wider apex (Figs. 73­74; 82­83) and larger spermatheca (Figs. 77; 87). Psammostiba comparabilis can be distinguished from the Palaearctic species of Psammostiba by the fine crenulation of the posterior margin of male tergum 8 (Fig. 69), and by the distinct shape of aedeagus (Figs. 68, 73­ 76) and spermatheca (Fig. 77). Description. Length 4.0­ 4.6 mm. Body black with brown legs and light brown tarsi. Head surface matte, with strong and dense isodiametric microsculpture, with fine punctation, distance between punctures equals their diameter; in both sexes with weak medial impression. Temple length to eye length ratio 0.9­1.1. Antennal article 3 is 1.2 times as long as article 2, articles 4­10 elongate (ratios 1.5 (4­5), 1.4 (6), 1.3 (7) and 1.1 (8­ 10)), article 11 shorter than articles 9 and 10 combined (Fig. 54). Pronotum ...