Gyrophaenina Kraatz 1856
Creators: name: Klimaszewski, Jan
name: Webster, Reginald
name: Savard, Karine
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae

description: Key to New Brunswick species of Gyrophaenina (Note: male genitalia offer excellent and ultimate diagnostic characteristics for most species identification) 1. Body usually bicoloured, flavate to brown, often with strongly contrasting areas (Figs 4–24); pronotum at most two-thirds wider than long; antennae moderately broadening apically, 5 th article not conspicuously broader than 4 th, mesosternal process longer than metasternal process, its apex not margined (subgenus <i>Gyrophaena</i>)................................................................... <b>6</b> - Body approximately uniformly dark brown (Figs 25–30); pronotum from slightly transverse (Figs 1, 27, 28) to approximately twice as wide as long (Figs 25, 26, 29, 30); antennae incrassate and often forming loose club, 5 th article conspicuously broader than 4 th; mesosternal process longer than metasternal process or approximately of the same length, its apex margined................. <b>2</b> 2(1). Postocular area of head short, sides strongly converging posteriorly (Figs 29, 30); pronotum approximately twice as wide as long; mesosternal and metasternal processes of approximately the same length (genus <i>Eumicrota</i>).............. <b>3</b> - Postocular area of head moderately to strongly elongate, sides subparallel or moderately converging posteriorly (Figs 1, 25–28); pronotum less than twice as wide as long (Figs 1, 25–28); mesosternal process longer than metasternal process (Fig. 2) (subgenus <i>Phaenogyra</i>)..................................................... <b>4</b> 3(2). Pronotum moderately transverse, broadest in its basal fourth, sides strongly converging apically (Fig. 29); male tergite 8 truncate apically and with small median lobe of variable size (Fig. 194); female tergite 8 truncate apically (Fig. 197); median lobe of aedeagus as illustrated (Fig. 192)....... <b> <i>E</i>. <i>corruscula</i> (Erichson)</b> <b>-</b> Pronotum strongly transverse, broadest at the middle, sides moderately converging apically (Fig. 30); male and female tergite 8 emarginate apically and with two large lobes (Figs 201, 204); median lobe of aedeagus as illustrated (Fig. 199)....................................................................... <b> <i>E</i>. <i>socia</i> (Erichson)</b> 4(2). Postocular area of head strongly elongate and subparallel (Figs 1, 3, 28); pronotum narrow and slightly transverse (Fig. 1); abdomen broad, its maximum width greater than that of elytra (Fig. 1); genital structures as illustrated (Figs 184–191)................................................................. <b> <i>G</i>. (<i>P</i>.) <i>gracilis</i> Seevers</b> - Postocular area of head moderately elongate and narrowed posteriorly (Figs 25, 26); pronotum broad and strongly transverse (Figs 25, 26); abdomen moderately broad, its maximum width approximately that of elytra (Figs 25, 26).............................................................................. <b>5</b> 5(4). Antennae light yellow, rarely darkening apically; elytra transverse, at suture as long as pronotum (Fig. 25); male tergite 8 usually with two teeth between two larger lateral teeth or median teeth lacking (Fig. 168); tubus of median lobe of aedeagus evenly arcuate in lateral view, without basal swelling (Fig. 166)...................................................... <b> <i>G</i>. (<i>P</i>.) <i>subnitens</i> Casey</b> - Antennae yellow-brown to brown, distinctly darkening apically and sometimes blackening; elytra elongate, at suture longer than pronotum (Fig. 26); male tergite 8 with 2–3 small teeth between two larger lateral teeth (Fig. 175); tubus of median lobe of aedeagus unevenly arcuate in lateral view and with basal swelling (Fig. 173).............................................................................................. <b> <i>G</i>. (<i>P</i>.) <i>meduxnekeagensis</i> Klimaszewski &amp; Webster, sp. n.</b> 6(1). Head and pronotum usually yellow to light yellow-brown (Figs 13, 14)..... <b>7</b> - Head dark brown to black, pronotum yellow-brown to dark brown (Figs 1–12, 15–24)............................................................................................. <b>8</b> 7(6). Pronotum approximately quadrate (Fig. 13); genital structures as illustrated (Figs 89–95)....................................................... <b> <i>G</i>. (<i>G</i>.) <i>antennaelis</i> Casey</b> - Pronotum distinctly transverse (Fig. 14); genital structures as illustrated (Figs 96–99)................................................................. <b> <i>G</i>. (<i>G</i>.) <i>chippewa</i> Seevers</b> 8(6). Pronotum uniformly coloured, yellow to dark brown (Figs 1–9, 11–20, 22– 24)............................................................................................................. <b>9</b> - Pronotum bicoloured, median part of the disc dark brown and sides light yellowish- brown (Figs 10, 21)................................................................. <b>25</b> 9(8). Pronotum uniformly dark brown to nearly black, usually strongly transverse (Figs 4, 7, 20, 22–24).............................................................................. <b>10</b> - Pronotum uniformly yellow to light brown, slightly to strongly transverse (Figs 5, 6, 8, 9, 11, 12, 15, 16–19).......................................................... <b>15</b> 10(9). Antennae entirely light yellow (Figs 20, 24); elytra yellowish with irregular dark patches (Figs 20, 24), genital structures as illustrated (Figs 132–138, 159–165)................................................................................................. <b>11</b> - Antennae light to dark brown, always darkening apically (Figs 4, 7, 22, 23); elytra dark brown to black with light brown patches (Figs 4, 7, 22, 23), genital structures as illustrated (Figs 32–38, 53–56, 145–158)....................... <b>12</b> 11(10). Body broadly subparallel, abdomen broad and subparallel (Fig. 24), genital structures as illustrated (Figs 159–165).... <b> <i>G</i>. (<i>G</i>.) <i>flavicornis</i> Melsheimer</b> - Body narrowly oval, abdomen narrow and tapering posteriorly (Fig. 20), genital structures as illustrated (Figs 132–138)....................................................................................................................... <b> <i>G</i>. (<i>G</i>.) <i>fuscicollis</i> Casey</b> 12(10). Body distinctly bicoloured, humeri of elytra and often basal part of abdomen paler, moderately glossy (Figs 4, 22, 23)................................................... <b>13</b> - Body approximately uniformly dark brown, strongly glossy, broad, pronotum strongly transverse (Fig. 7); genital structures as illustrated (Figs 53–56)........................................................................................... <b> <i>G</i>. (<i>G</i>.) <i>illiana</i> Seevers</b> 13(12). Pronotum light reddish-brown, elytra light yellowish-brown with dark brown or black posterior angles, base of abdomen yellowish to light-brown, apical part dark brown (Fig. 4); genital structures as illustrated (Figs 31–38).............................................................................................. <b> <i>G</i>. (<i>G</i>.) <i>keeni</i> Casey</b> <b>-</b> Pronotum dark brown, elytra dark brown with small, irregularly distributed, paler patches, base of abdomen light yellowish-brown (Figs 22, 23); genital structures as illustrated (Figs 145–158).................................................... <b>14</b> 14(13). Antennae uniformly light yellow (Fig. 22); genital structures as illustrated (Figs 145–151).......................................................... <b> <i>G</i>. (<i>G</i>.) <i>uteana</i> Casey</b> - Antennae infuscated (Fig. 23), genital structures as illustrated (Figs 152– 158)......................................................................... <b> <i>G</i>. (<i>G</i>.) <i>gaudens</i> Casey</b> 15(8). Pronotum slightly transverse, almost quadrate (Figs 15–19)..................... <b>16</b> - Pronotum strongly transverse (Figs 5, 6, 8, 9–12).................................... <b>20</b> 16(15). Antennal articles 6–10 dark brown (Figs 15, 17)...................................... <b>17</b> - Antennal articles 6–10 light yellow (Figs 16, 18–20)................................ <b>18</b> 17(16). Body length 2.3–2.8 mm, elytra at suture longer than pronotum (Fig. 15); genital structures as illustrated (Figs 100–106).......... <b> <i>G</i>. (<i>G</i>.) <i>insolens</i> Casey</b> - Body length 1.3–1.5 mm; elytra at suture at most as long as pronotum (Fig. 17); genital structures as illustrated (Figs 111–117).................................................................. <b> <i>G</i>. (<i>G</i>.) <i>pseudocriddlei</i> Klimaszewski &amp; Webster, sp. n.</b> 18(16). Elytra black, mottled with irregularly shaped light brown spots, particularly in humeral areas (Figs 16, 18); head uniformly dark brown to black, abdomen yellowish with darker, brownish, posterior portion (Figs 16, 18)..................................................................................................... <b>19</b> - Elytra uniformly yellow light-brown, some inconspicuous light brown spots may be present; head dark brown to black with paler base, abdomen uniformly light yellow brown (Fig. 19); genital structures as illustrated (Figs 125–131)................................................................. <b> <i>G</i>. (<i>G</i>.) <i>modesta</i> Casey</b> 19(18). Abdomen reddish-brown (Fig. 18); genital structures as illustrated (Figs 118– 124)....................................................................... <b> <i>G</i>. (<i>G</i>.) <i>gilvicollis</i> Casey</b> <b>-</b> Abdomen yellow (Fig. 16); genital structures as illustrated (Figs 107–110)............................................................................................ <b> <i>G</i>. (<i>G</i>.) <i>criddlei</i> Casey</b> 20(15). Body length 1.5–1.7 mm; antennae uniformly light yellow (Fig. 12): genital structures as illustrated (Figs 85–88)......................... <b> <i>G</i>. (<i>G</i>.) <i>dybasi</i> Seevers</b> <b>-</b> Body length 1.5–2.3 mm, antennae with basal 4 articles light yellow and remaining articles light to dark brown (Figs 5, 6, 9, 11)........................... <b>21</b> 21(20). Body narrow, base of abdomen distinctly narrower than elytra (Fig. 11): genital structures as illustrated (Figs 78–84)................. <b> <i>G</i>. (<i>G</i>.) <i>affinis</i> Sahlberg</b> - Body usually broad, base of abdomen about as broad as elytra (Figs 5, 6, 8, 9)................................................................................................. <b>22</b> 22(21). Body strongly glossy with bright metallic sheen, abdomen uniformly yellow, sometimes with slightly darker posterior portion (Fig. 5); genital structures as illustrated (Figs 39–45).............................................. <b> <i>G</i>. (<i>G</i>.) <i>caseyi</i> Seevers</b> - Body moderately glossy, abdomen uniformly reddish-brown or with pale base and darker posterior portion (Figs 6, 8, 9)........................................ <b>23</b> 23(22). Body short and stout, antennae short, not reaching posterior part of elytra (Fig. 6), posterior portion of abdomen dark brown; genital structures as illustrated (Figs 46–52)……….................................... <b> <i>G</i>. (<i>G</i>.) <i>laetula</i> Casey</b> - Body elongate, antennae long, reaching posterior part of elytra (Figs 8, 9), entire abdomen uniformly reddish-brown; genital structures as illustrated (Figs 57–70)............................................................................................ <b>24</b> 24(23). Elytra aspirate (Fig. 8); abdomen tapering posteriorly; genital structures as illustrated (Figs 57–63).................................... <b> <i>G</i>. (<i>G</i>.) <i>sculptipennis</i> Casey</b> - Elytra not aspirate (Fig. 9); abdomen subparallel; genital structures as illustrated (Figs 64–70).................................................. <b> <i>G</i>. (<i>G</i>.) <i>involuta</i> Casey</b> 25(8). Body strongly glossy, elytra bicoloured with scutellar area and posterolateral angles black (Fig. 10); genital structures as illustrated (Figs 71–77)................................................................................................. <b> <i>G</i>. (<i>G</i>.) <i>lobata</i> Casey</b> - Body moderately glossy, elytra approximately uniformly dark brown (Fig. 21); genital structures as illustrated (Figs 139–144).... <b> <i>G</i>. (<i>G</i>.) <i>vitrina</i> Casey</b>
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 90-93, DOI: 10.3897/zookeys.22.219, http://zenodo.org/record/576536