Eumicrota socia (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 : 129-147

31. Eumicrota socia (Erichson)

Figs 30, 199–205; Map 26

Map 26. Collection localities in New Brunswick, Canada of Eumicrota socia

Gyrophaena socia Erichson, 1840: 189 ; Casey 1906: 281; Seevers 1951: 733; Moore and Legner 1975: 432.

Eumicrota socia Erichson, 1840: 189 .

Eumicrota socia Casey, 1906: 282 . Synonymized by Seevers 1951: 733.

Eumicrota humeralis Casey, 1906: 282 . Synonymized by Seevers 1951: 733.

Eumicrota texanella Casey, 1906: 282 . Synonymized by Seevers 1951: 733.

Eumicrota melania Casey, 1906: 283 . Synonymized by Seevers 1951: 733.

Eumicrota pallidula Casey, 1906: 283 . Synonymized by Seevers 1951: 733.

Eumicrota insolita Notman, 1920: 719 . Synonymized by Seevers 1951: 733.

Description. Body length 1.2–1.7 mm, dark brown to black, entire elytra or their posterior part frequently paler (Fig. 30). Punctation: vertex of head and pronotum, elytra, and pronotum moderately coarsely punctate, abdomen sparsely, irregularly punctate (Fig. 30). Microsculpture: reticulate throughout, most evident on elytra. Antennae light yellow-brown as illustrated (Fig. 30). Pronotum 1.6 times as wide as long. MALE: tergite 8 with two large median lobes at apical margin (Fig. 201); sternite 8 rounded apically (Fig. 202). Median lobe of aedeagus with long and narrow tubus bearing thin apical projection directed posteriad (Fig. 199), apical projection of internal sac short and terminated with multiple coiled and everted flagellum (Fig. 199). Paramere as illustrated (Fig. 200). FEMALE. Tergite 8 with two apical lobes (Fig. 204); sternite 8 broadly rounded apically and pointed medially (Fig. 205); spermatheca as illustrated (Fig. 203).

Bionomics. Macrohabitat: hardwood forest, mixed forest, silver maple forest, flood plain forest with butternut trees, mature red spruce and red maple forest, and oak forest. This species has also been found in a conifer forest, red spruce forest (80–120 years old), hemlock forest (120+ years old), hemlock/balsam fir/black spruce forest, and stream margin forest. Microhabitat: on/in Pleurotus sp. on logs and dead standing trembling aspens, in partially dried Pleurotus sp. on dead standing sugar maple, in slightly decayed polypore fungi on log, in decaying polypore fungi on dead standing spruce, in bracket fungi, in/on gilled mushrooms on logs and forest floor, on Climatodon septentrionale growing on dead standing sugar maple. Also found on Heterobasidium annosum on Picea rubens . Collecting period: June, July, August, and September. Collecting method: sifting mushrooms, aspirating and hand collecting specimens.

Distribution (Map 26). CANADA: New Brunswick, Nova Scotia, and Quebec; UNITED STATES: Arkansas, District of Columbia, Florida, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maine, Maryland, Michigan, Missouri, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, and Wisconsin.

Figures 3Ι–38. Genital and terminal abdominal structures of Gyrophaena (G.) keeni Casey : 3Ι tubus and internal sac in lateral view 32 median lobe of aedeagus in lateral view 33 paramere 34 male tergite 8 35 male sternite 8 36 spermatheca 37 female tergite 8 38 female sternite 8.

132 Jan Klimaszewski, Reginald P. Webster & Karine Savard / ZooKeys 22: 81–170 (2009)

43 0.2mm 39 40 4Ι 42 44 45

Figures 39–45. Genital and terminal abdominal structures of Gyrophaena (G.) caseyi Seevers : 39 median lobe of aedeagus in lateral view 40 paramere 4Ι male tergite 8 42 male sternite 8 43 spermatheca 44 female tergite 8 45 female sternite 8.

Figures 46–52. Genital and terminal abdominal structures of Gyrophaena (G.) laetula Casey : 46 median lobe of aedeagus in lateral view 47 paramere 48 male tergite 8 49 male sternite 8 50 spermatheca 5Ι female tergite 8 52 female sternite 8.

134 Jan Klimaszewski, Reginald P. Webster & Karine Savard / ZooKeys 22: 81–170 (2009)

0.2mm 53 54 55 56

Figures 53–56. Genital and terminal abdominal structures of Gyrophaena (G.) illiana Seevers : 53 median lobe of aedeagus in lateral view 54 paramere 55 male tergite 8 56 male sternite 8.

Review of the rove beetle species of the subtribe Gyrophaenina from New Brunswick ... 135

0.2mm 57 58 59 60 6Ι 62 63

Figures 57–63. Genital and terminal abdominal structures of Gyrophaena (G.) sculptipennis Casey : 57 median lobe of aedeagus in lateral view 58 paramere 59 male tergite 8 60 male sternite 8 6Ι spermatheca 62 female tergite 8 63 female sternite 8.

136 Jan Klimaszewski, Reginald P. Webster & Karine Savard / ZooKeys 22: 81–170 (2009)

68 0.2mm 64 65 66 67 69 70

Figures 64–70. Genital and terminal abdominal structures of Gyrophaena (G.) involuta Casey : 64 median lobe of aedeagus in lateral view 65 paramere 66 male tergite 8 67 male sternite 8 68 spermatheca 69 female tergite 8 70 female sternite 8.

Review of the rove beetle species of the subtribe Gyrophaenina from New Brunswick ... 137

75 0.2mm 7Ι 72 73 74 76 77

Figures 7Ι–77. Genital and terminal abdominal structures of Gyrophaena (G.) lobata Casey : 7Ι median lobe of aedeagus in lateral view 72 paramere 73 male tergite 8 74 male sternite 8 75 spermatheca 76 female tergite 8 77 female sternite 8.

Figures 78–84. Genital and terminal abdominal structures of Gyrophaena (G.) affinis Sahlberg : 78 median lobe of aedeagus in lateral view 79 paramere 80 male tergite 8 8Ι male sternite 8 82 spermatheca 83 female tergite 8 84 female sternite 8.

Figures 85–88. Genital and terminal abdominal structures of Gyrophaena (G.) dybasi Seevers : 85 median lobe of aedeagus in lateral view 86 paramere 87 male tergite 8 88 male sternite 8.

Figures 89–95. Genital and terminal abdominal structures of Gyrophaena (G.) antennalis Casey : 89 median lobe of aedeagus in lateral view 90 paramere 9Ι male tergite 8 92 male sternite 8 93 spermatheca 94 female tergite 8 95 female sternite 8.

mm

Figures 96–99. Genital and terminal abdominal structures of Gyrophaena (G.) chippewa Seevers : 96 median lobe of aedeagus in lateral view 97 paramere 98 male tergite 8 99 male sternite 8.

142 Jan Klimaszewski, Reginald P. Webster & Karine Savard / ZooKeys 22: 81–170 (2009)

Ι0Ι Ι04 Ι00 0.2mm Ι02 Ι03 Ι05 Ι06

Figures Ι00–Ι06. Genital and terminal abdominal structures of Gyrophaena (G.) insolens Casey : Ι00 median lobe of aedeagus in lateral view Ι0Ι paramere Ι02 male tergite 8 Ι03 male sternite 8 Ι04 spermatheca Ι05 female tergite 8 Ι06 female sternite 8.

Figures Ι07–ΙΙ0. Genital and terminal abdominal structures of Gyrophaena (G.) criddlei Casey : Ι07 median lobe of aedeagus in lateral view Ι08 paramere Ι09 male tergite 8 ΙΙ0 male sternite 8.

Figures ΙΙΙ–ΙΙ7. Genital and terminal abdominal structures of Gyrophaena (G.) pseudocriddlei Klimaszewski and Webster , sp. n.: ΙΙΙ median lobe of aedeagus in lateral view ΙΙ2 paramere ΙΙ 3 male tergite 8 ΙΙ 4 male sternite 8 ΙΙ5 spermatheca ΙΙ 6 female tergite 8 ΙΙ 7 female sternite 8.

Figures ΙΙ8–Ι24. Genital and terminal abdominal structures of Gyrophaena (G.) gilvicollis Casey : ΙΙ8 median lobe of aedeagus in lateral view ΙΙ9 paramere Ι 20 male tergite 8 Ι2Ι male sternite 8 Ι22 spermatheca Ι 23 female tergite 8 Ι 24 female sternite 8.

Figures Ι25–Ι3Ι. Genital and terminal abdominal structures of Gyrophaena (G.) modesta Casey : Ι25 median lobe of aedeagus in lateral view Ι26 paramere Ι 27 male tergite 8 Ι 28 male sternite 8 Ι29 spermatheca Ι 30 female tergite 8 Ι3Ι female sternite 8.

Figures Ι32–Ι38. Genital and terminal abdominal structures of Gyrophaena (G.) fuscicollis Casey : Ι32 median lobe of aedeagus in lateral view Ι33 paramere Ι 34 male tergite 8 Ι 35 male sternite 8 Ι36 spermatheca Ι 37 female tergite 8 Ι 38 female sternite 8.