Eumicrota corruscula (Erichson)

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 : 128-129

30. Eumicrota corruscula (Erichson)

Figs 29, 192–198; Map 25

Gyrophaena corruscula Erichson, 1840: 189 ; Seevers 1951: 733; Moore and Legner 1975: 428.

Description. Body length 1.0– 1.5 mm, dark brown to black. Punctation: vertex of head and pronotum finely and sparsely punctate, elytra finely, asperately punctate, ab-

Map 25. Collection localities in New Brunswick, Canada of Eumicrota corruscula

domen sparsely, irregularly punctate (Fig. 29). Microsculpture: reticulate throughout, most evident on elytra. Antennae light yellow-brown as illustrated (Fig. 29). Pronotum 1.5 times as wide as long. MALE. tergite 8 truncate apically with one small median lobe (Fig. 194); sternite 8 rounded apically (Fig. 195). Median lobe of aedeagus with long and narrow tubus bearing thin apical projection directed anteriad (Fig. 192), apical projection of internal sac short and terminated with multiple coiled and everted flagellum (Fig. 192). Paramere as illustrated (Fig. 193). FEMALE. Tergite 8 truncated apically (Fig. 197); sternite 8 broadly rounded apically (Fig. 198); spermatheca as illustrated (Fig. 196).

Bionomics. Macrohabitat: hardwood forest, mixed forest. Microhabitat: on Pleurotus sp., growing on logs, on fleshy polypore mushroom growing on a log, on Polyporus arcularius Bat. ex Fr. on trunk of dead hardwood, on slightly decayed polypore on log, on gilled mushroom growing on a log. Collecting period: June, August, and September. Collecting method: sifting mushrooms, aspirating and hand collecting specimens.

Distribution (Map 25). CANADA: New Brunswick and Quebec; UNITED STATES: Alabama, District of Columbia, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Massachusetts, Michigan, Missouri, New Jersey, New York, Ohio, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, and Wisconsin.