Gyrophaena (Gyrophaena) illiana, Seevers, 1951

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 : 98-99

IV. Gyrophaena (Gyrophaena) illiana species group ( Seevers, 1951: 688) 7. Gyrophaena (Gyrophaena) illiana Seevers

Figs 7, 53–56; Map 4

Gyrophaena illiana Seevers, 1951: 688 ; Moore and Legner 1975: 430.

Description. Body length 1.7–1.8 mm, stout and compact; head piceous; pronotum rufo-piceous to piceous; elytra uniformly brown or light brown with piceous posterior angles; abdomen rufo-testaceous to dark brown. Punctation: vertex of head with some eight small punctures on each side, pronotum with one conspicuous puncture in median row on each side and with a few scattered punctures elsewhere, elytra finely and sparsely punctate. Microsculpture: finely meshed throughout. Antennae as illustrated (Fig. 7). Pronotum 1.6 times as wide as long. MALE: tergite 8 with two large and rounded teeth and some small median tuberosities (Fig. 55); sternite 8 pointed apically (Fig. 56). Median lobe of aedeagus with narrowly elongate and tapering tubus and ventrally projecting apex, apical projection small and narrow, directed anteriad in lateral view (Fig. 53), dorsal projection of internal sac narrow and sinuate (Fig. 53). Paramere as illustrated (Fig. 54). FEMALE. Unknown.

Bionomics. Macrohabitat: red maple and red oak ( Quercus rubra L.) forest. Microhabitat: on a polypore fungus growing on a log. Collecting period: August. Collecting method: sifting mushrooms and aspirating specimens.

Distribution (Map 4). CANADA: New Brunswick; UNITED STATES: Illinois, Indiana, and Wisconsin.

Map 4. Collection localities in New Brunswick, Canada of Gyrophaena illiana