Gyrophaena (Gyrophaena) gaudens Casey 1906
Creators: name: Klimaszewski, Jan
name: Webster, Reginald
name: Savard, Karine
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Gyrophaena
Gyrophaena gaudens

description: 24. <i>Gyrophaena</i> (<i>Gyrophaena</i>) <i>gaudens</i> Casey Figs 23, 152–158; Map 20 <i>Gyrophaena</i> (<i>Gyrophaena</i>) <i>gaudens</i> Casey, 1906: 292; Seevers 1951: 719; Moore and Legner 1975: 429; Campbell and Davies 1991: 106. <b>Description.</b> <i>Gyrophaena gaudens</i> is externally similar to <i>G. uteana</i> but differs by infuscated antennae and the male genital features. <b>Map 20.</b> Collection localities in New Brunswick, Canada of <i>Gyrophaena gaudens</i> Body length 1.4–1.7 mm, narrowly oval; head piceous; pronotum dark rufo-testaceous to piceous; elytra reddish-brown with piceous sutural region and posterior angles; abdomen yellowish- or reddish-brown, apical portion often darker and piceous. Punctation: vertex of head with at least six moderately-sized umbilicate punctures on each side, pronotum with six punctures in two confused median rows and additional punctures elsewhere, elytra with fine and sparse punctures. Microsculpture: reticulate throughout, weaker on pronotum, most evident on head. Antennae as illustrated (Fig. 23). Pronotum 1.5 times as wide as long. MALE: tergite 8 with two long and narrow lateral teeth and with two (rarely three) minute median teeth [smaller and more sharply pointed than those of <i>G. uteana</i>] (Fig. 154); sternite 8 rounded apically (Fig. 155). Median lobe of aedeagus with long and narrowly produced tubus which is lacking angular swelling in the middle of ventral margin, apex with subapical minute projection (Fig. 152), apical projection of internal sac elongate and irregular in shape (Fig. 152). Paramere as illustrated (Fig. 153). FEMALE. Tergite 8 truncate apically (Fig. 157); sternite 8 rounded apically and slightly pointed (Fig. 158); spermatheca as illustrated (Fig. 156). <b>Bionomics. Macrohabitat:</b> mixed forest and conifer forest. <b>Microhabitat:</b> on/in gilled mushrooms, on small gilled mushroom on log, on <i>Pleurotus</i> sp. on dead standing <i>Populus tremuloides</i>, on polypore fungi, and on bracket fungi. This species has also been found on <i>Cantharellus deliciosus</i>. <b>Collecting period:</b> June, July, and August. <b>Collecting method:</b> sifting mushrooms, aspirating, and hand collecting. <b>Distribution</b> (Map 20). CANADA: <b>New Brunswick</b>, Ontario, and Quebec; UNITED STATES: Illinois, Indiana, Massachusetts, Michigan, Pennsylvania, and Wisconsin.
description: Published as part of <i>Klimaszewski, Jan, Webster, Reginald &amp; Savard, Karine, 2009, Review of the rove beetle species of the subtribe Gyrophaenina Kraatz (Coleoptera, Staphylinidae) from New Brunswick, Canada: new species, provincial records and bionomic information, pp. 81-170 in ZooKeys 22 (22)</i> on pages 120-121, DOI: 10.3897/zookeys.22.219, http://zenodo.org/record/576536
description: {"references": ["Casey TL (1906) Observations of the staphylinid groups Aleocharinae and Xantholinini, chiefly of America. Transactions of the Academy of Sciences of St. Louis 16: 125 - 435.", "Seevers CH (1951) A revision of the North American and European staphylinid beetles of the subtribe Gyrophaenae (Aleocharinae, Bolitocharini). Fieldiana Zoology 32 (10): 659 - 762.", "Moore I, Legner EF (1975) A catalogue of the Staphylinidae of America north of Mexico (Coleoptera). Division of Agricultural Science, University of California Special Publication 3015: 514 pp.", "Campbell JM and Davies A (1991) Family Staphylinidae rove beetles. In: Bousquet Y (Ed) Checklist of beetles of Canada and Alaska. Agriculture Canada Research Branch III Series Publication 1861 / E: 1 - 430."]}