Gyrophaena (Gyrophaena) fasciata (Marsham, 1802)

Klimaszewski, Jan, Webster, Reginald & 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, ZooKeys 22 (22), pp. 81-170 : 100-101

VI. Gyrophaena (Gyrophaena) fasciata species group ( Seevers, 1951: 690) 9. Gyrophaena (Gyrophaena) involuta Casey

Figs 9, 64–70; Map 6

Gyrophaena (Gyrophaena) involuta Casey, 1906: 294 ; Seevers 1951: 691; Moore and Legner 1975: 431; Campbell and Davies 1991: 106.

Description. Body length 1.8–2.0 mm, subparallel; head brown to piceous; pronotum flavate; elytra brown to dark brown; abdomen rufo-flavate, apical part of abdomen some-

Map 6. Collection localities in New Brunswick, Canada of Gyrophaena involuta

times darker. Punctation: vertex of head with at least seven small umbilicate punctures on each side, pronotum with two weakly defined median rows of punctures, elytra finely and sparsely punctate. Microsculpture: reticulate throughout, often weakly so on elytra. Antennae as illustrated (Fig. 9). Pronotum 1.3 times as wide as long. MALE: tergite 8 with two narrowly elongate and rounded lateral teeth and two slightly smaller rounded median teeth (Fig. 66); sternite 8 broadly rounded apically (Fig. 67). Median lobe of aedeagus with broad and ventrally angular tubus, apex narrow and acute (Fig. 64), dorsal projection of internal sac short and irregular in shape (Fig. 64). Paramere as illustrated (Fig. 65). FEMALE. Tergite 8 truncate posteriorly (Fig. 69); sternite 8 broadly rounded and slightly emarginate medially (Fig. 70); spermatheca as illustrated (Fig. 68).

Bionomics. Macrohabitat: hardwood forest, hardwood forest with hemlock, mature red spruce and red maple forest, and mature mixed forest. Microhabitat: in gilled mushrooms on forest floor, small gilled mushrooms on log, on Pleurotus sp. on log. Collecting period: August. Collecting method: sifting mushrooms and aspirating adults.

Distribution (Map 6). CANADA: New Brunswick; UNITED STATES: Maine, Massachusetts, New York, and Wisconsin.