Seeversiella

Gusarov, Vladimir I., 2003, A revision of the genus Seeversiella Ashe, 1986 (Coleoptera: Staphylinidae: Aleocharinae), Zootaxa 142, pp. 1-102 : 10-11

publication ID

https://doi.org/ 10.5281/zenodo.156420

DOI

https://doi.org/10.5281/zenodo.6274634

persistent identifier

https://treatment.plazi.org/id/62088784-C327-C77B-E12E-750AFA91FE96

treatment provided by

Plazi

scientific name

Seeversiella
status

 

Key for identification of species of Seeversiella View in CoL

1 Elytra longer or only a little shorter than pronotum. Pronotal length to elytral length (measured from humeral angle) ratio 1.1 or less ......................................................... 2

– Elytra much shorter than pronotum ( Figs. 18­19 View FIGURES 17 ­ 19 ). Pronotal length to elytral length (measured from humeral angle) ratio more than 1.1 ................................................. 28

2 Pronotum glossy, with weak isodiametric microsculpture or without microsculpture 3

– Pronotum matte, with strong isodiametric microsculpture ....................................... 25

3 Punctation of pronotum asperate. Tergum 8 with three pairs of macrosetae ( Figs. 222, 224 View FIGURES 222 ­ 225 ). Proximal seta of the apex of paramere is approximately as long as the other three setae ( Fig. 233 View FIGURES 230 ­ 234 ). Aedeagus: Figs. 226­233 View FIGURES 226 ­ 229 View FIGURES 230 ­ 234 . Spermatheca: Fig. 234 View FIGURES 230 ­ 234 . Body length 2.6­3.0 mm, pronotal width 0.53­0.56 mm. Known from Cerro Punta, Panama, at altitude of 2100 m ( Fig. 388 View FIGURE 388 ) .............................. 16. S. brevipennis Gusarov , sp. n.

– Punctation of pronotum not asperate. Tergum 8 with four pairs of macrosetae ( Figs. 20, 22 View FIGURES 20 ­ 23 ). Proximal seta of the apex of paramere is much longer than the other three setae ( Fig. 33 View FIGURES 28 ­ 36 )............................................................................................................... 4

4 Pronotum with weak isodiametric microsculpture ...................................................... 5

– Pronotum without microsculpture ............................................................................. 23

5 Males ............................................................................................................................ 6

– Females (Females of S. nigriceps are unknown) ........................................................ 15

6 Distal sclerites of internal sac strongly sclerotized, hook­shaped ( Figs. 31, 35 View FIGURES 28 ­ 36 ; 48, 51; DS) or dentiform ( Figs. 63, 65 View FIGURES 58 ­ 67 ; DS) 7

– Distal sclerites of internal sac poorly sclerotized, not hook­shaped or dentiform and may have numerous spicules ( Figs. 87 View FIGURES 83 ­ 89 ; 99, 101; 124; 146; DS) ............................... 10

7 Distal sclerites of internal sac hook­shaped ( Figs. 31, 35 View FIGURES 28 ­ 36 ; 48, 51) ............................. 8

– Distal sclerites of internal sac dentiform ( Figs. 63, 65 View FIGURES 58 ­ 67 ; 124) ...................................... 9

8 Body dark brown. Microsculpture on head and pronotum less distinct. Apex of median lobe in lateral view straight ( Figs. 26­27 View FIGURES 24 ­ 27 ). Copulatory piece of internal sac long ( Figs. 29, 34 View FIGURES 28 ­ 36 ). Elytra (measured from humeral angle) longer than pronotum. Wings fully developed, 4 times as long as elytra. Aedeagus: Figs. 24­31, 33­36 View FIGURES 24 ­ 27 View FIGURES 28 ­ 36 . Body length 2.4­3.3 mm, pronotal width 0.44­0.54 mm. Widespread in North America, known from Canada to Honduras ( Figs. 385­387 View FIGURE 385 View FIGURE 386 View FIGURE 387 ) .................................................. ...............................................................................1. S. globicollis (Bernhauer) (males)

– Body brown. Microsculpture on head and pronotum more distinct. Apex of median lobe in lateral view bent paramerally ( Figs. 43­44 View FIGURES 41 ­ 44 ). Copulatory piece of internal sac short ( Figs. 46, 49­50 View FIGURES 45 ­ 53 ). Elytra (measured from humeral angle) shorter than pronotum. Wings short, 2 times as long as elytra. Aedeagus: Figs. 41­52 View FIGURES 41 ­ 44 View FIGURES 45 ­ 53 . Body length 2.5­2.8 mm, pronotal width 0.44­0.49 mm. Known from the Guadalupe Mountains, Texas, at altitude of 2400 m ( Fig. 386 View FIGURE 386 ) ............................... 2. S. texana Gusarov , sp. n. (males)

9 Distal sclerites of internal sac wider ( Figs. 63, 65 View FIGURES 58 ­ 67 ). Aedeagus: Figs. 58­61, 63­67 View FIGURES 58 ­ 67 . Body length 2.3­2.8 mm, pronotal width 0.40­0.44 mm. Known from the Huachuca

Mountains, Arizona, at altitude of 2150 m ( Fig. 386 View FIGURE 386 ) ................................................... ........................................................ 3. S. sonomotoides Gusarov , sp. n. (males, in part) – Distal sclerites of internal sac narrower ( Fig. 124 View FIGURES 117 ­ 125 ). Aedeagus: Figs. 119­125 View FIGURES 117 ­ 125 . Body length 2.4 mm, pronotal width 0.47 mm. Known from Mexico, at altitude of 2400 m ( Fig. 387 View FIGURE 387 )...............................................8. S. nigriceps Gusarov , sp. n. (males, in part)

10 Apex of median lobe in lateral view widened subapically ( Figs. 112­113 View FIGURES 109 ­ 116 ; 156­157) 11

– Apex of median lobe in lateral view not widened subapically ( Figs. 85­86 View FIGURES 83 ­ 89 ) ............. 14

11 Apex of median lobe in lateral view emarginate on parameral side ( Figs. 156­157 View FIGURES 154 ­ 160 ). Aedeagus: Figs. 154­159 View FIGURES 154 ­ 160 . Body length 2.5 mm, pronotal width 0.50­0.53 mm. Known from El Salvador, at altitude of 2100 m ( Fig. 387 View FIGURE 387 ) ........................................... ................................................................................11. S. badia Gusarov , sp. n. (males)

– Apex of median lobe in lateral view may be slightly bent paramerally ( Figs. 141­142 View FIGURES 139 ­ 142 ) but never clearly emarginate ( Figs. 112­113 View FIGURES 109 ­ 116 ; 141­142) ............................................ 12

12 Apex of median lobe in parameral view wide ( Figs. 110­111 View FIGURES 109 ­ 116 ). Aedeagus: Figs. 110­ 115 View FIGURES 109 ­ 116 . Body length 2.4 mm, pronotal width 0.49 mm. Known from Mexico, at altitude of 1300 m ( Fig. 387 View FIGURE 387 ) ............................... 7. S. tuberculicauda Gusarov , sp. n. (males)

– Apex of median lobe in parameral view narrow ( Figs. 139­140 View FIGURES 139 ­ 142 ; 165­166) .............. 13

13 Apex of median lobe in parameral view with weak basal constriction ( Figs. 139­140 View FIGURES 139 ­ 142 ). Aedeagus: Figs. 139­148 View FIGURES 139 ­ 142 View FIGURES 143 ­ 149 . Body length 2.2­2.8 mm, pronotal width 0.41­0.53 mm. Known from Mexico, at altitudes of 1700­2300 m ( Fig. 387 View FIGURE 387 ) ....................................... ........................................................................ 10. S. mexicana Gusarov , sp. n. (males)

– Apex of median lobe in parameral view gradually widened basally, not constricted ( Figs. 165­166 View FIGURES 165 ­ 168 ). Aedeagus: Figs. 165­173 View FIGURES 165 ­ 168 View FIGURES 169 ­ 174 . Body length 2.3­2.8 mm, pronotal width 0.48­0.54 mm. Known from Honduras, at altitude of 2000­2100 m ( Fig. 387 View FIGURE 387 ) ............ ............................................................................. 12. S. similis Gusarov , sp. n. (males)

14 Distal sclerites of internal sac have weak spicules ( Fig. 87 View FIGURES 83 ­ 89 ). Aedeagus: Figs. 83­88 View FIGURES 83 ­ 89 . Body length 2.3­2.5 mm, pronotal width 0.46­0.50 mm. Known from Mexico, at altitude of 1700­1900 m ( Fig. 387 View FIGURE 387 ) ............................. 5. S. fusca Gusarov , sp. n. (males)

– Distal sclerites of internal sac have strong spicules ( Figs. 99, 101 View FIGURES 94 ­ 104 ). Aedeagus: Figs. 94­103 View FIGURES 94 ­ 104 . Body length 2.3­2.8 mm, pronotal width 0.46­0.50 mm. Known from Mexico and Honduras, at altitude of 1500­2400 m ( Fig. 387 View FIGURE 387 ) ............................................................................................................................6. S. castanea Gusarov , sp. n. (males)

15 Spermatheca S­shaped ( Figs. 149 View FIGURES 143 ­ 149 , 160 View FIGURES 154 ­ 160 ) .................................................................... 16

– Spermatheca L­, J­ or C­shaped ( Figs. 32 View FIGURES 28 ­ 36 , 53 View FIGURES 45 ­ 53 , 62 View FIGURES 58 ­ 67 , 89 View FIGURES 83 ­ 89 , 104 View FIGURES 94 ­ 104 ) ....................................... 18

16 Umbilicus facing proximally ( Fig. 149 View FIGURES 143 ­ 149 ). Body length 2.2­2.8 mm, pronotal width 0.41­0.53 mm. Known from Mexico, at altitudes of 1700­2300 m ( Fig. 387 View FIGURE 387 ) ............. ..................................................................... 10. S. mexicana Gusarov , sp. n. (females)

– Umbilicus facing laterally ( Figs. 160 View FIGURES 154 ­ 160 , 174 View FIGURES 169 ­ 174 ). Two closely related species which cannot be distinguished by females ....................................................................................... 17

17 Body length 2.5 mm, pronotal width 0.50­0.53 mm. Spermatheca: Fig. 160 View FIGURES 154 ­ 160 . Known from El Salvador, at altitude of 2100 m ( Fig. 387 View FIGURE 387 ) .....................................................................................................................................11. S. badia Gusarov , sp. n. (females)

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

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