Leptusa

Park, Jong-Seok, Carlton, Christopher E. & Ferro, Michael L., 2010, Diversity and taxonomic review of Leptusa Kraatz (Coleoptera: Staphylinidae: Aleocharinae) from Great Smoky Mountains National Park, U. S. A., with descriptions of four new species, Zootaxa 2662, pp. 1-27 : 2-3

publication ID

https://doi.org/ 10.5281/zenodo.199052

DOI

https://doi.org/10.5281/zenodo.5020574

persistent identifier

https://treatment.plazi.org/id/03E2BD70-FFF8-8063-FF5C-2D95FA0E4F5D

treatment provided by

Plazi

scientific name

Leptusa
status

 

Key to the Leptusa View in CoL species from the eastern United States

Note. Leptusa (E.) nanula ( Casey, 1893) and L. obscura Blatchley, 1910 are not included in the key. See discussion.

1. Head and pronotum with coarse setigerous punctures, distance between punctures less than their diameters ( Figs. 1 View FIGURE 1 g, 1j) ................................................................................................................................................................................. 2

- Head and pronotum with moderate sized setigerous punctures, distance between punctures more than their diameters ( Figs. 1 View FIGURE 1 b – 1f, 1h, 1i) ...................................................................................................................................................... 3

2. Antennomere 4 subquadrate ( Fig. 8 View FIGURE 8 a); elytra unicolored ( Fig. 1 View FIGURE 1 g); abdominal tergites VII – VIII with single median elongate tubercle ( Figs. 1 View FIGURE 1 g, 8f) ....................................................................................... L View in CoL . (Dysleptusa) pusio (Casey)

- Antennomere 4 longer than wide ( Fig. 11 View FIGURE 11 a); posterior part of elytra paler ( Fig. 1 View FIGURE 1 j); abdominal tergites VII – VIII with- out single median elongate tubercle ( Figs. 1 View FIGURE 1 j, 11f) ...................................................... L. (Ulitusa) cribratula (Casey) View in CoL

3. Elytra not more than 1.3 times longer than pronotum ( Figs. 1 View FIGURE 1 b, 1c, 1f) ..................................................................... 4

- Elytra at least 1.5 times longer than pronotum ( Figs. 1 View FIGURE 1 a, 1d, 1e, 1g – 1j)..................................................................... 8

4. Body length less than 2.5 mm; antennomere 4 subquadrate ( Fig. 7 View FIGURE 7 a); hind wings absent ......................................... 5

- Body length more than 2.5 mm; antennomere 4 longer than wide ( Figs. 3 View FIGURE 3 a, 4a); hind wings present ....................... 6

5. Body light reddish brown ( Klimaszewski et al. 2004: Fig. 9 View FIGURE 9 ); posterior margin of male abdominal tergite VIII without tubercles ( Klimaszewski et al. 2004: Fig. 49); flagellum approximately 2 times longer than length of median lobe ( Klimaszewski et al. 2004: Fig. 48) ............................................................. L. (Adoxopisalia) elegans Blatchley View in CoL

- Body brown ( Fig. 1 View FIGURE 1 g); posterior margin of male abdominal tergite VIII with tubercle ( Fig. 7 View FIGURE 7 f); flagellum as long as 1/2 length of median lobe ( Fig. 7 View FIGURE 7 k) ............................................................................... L. (Dysleptusa) View in CoL gimmeli n. sp.

6. Antennomere 4 transverse; hind wings absent ........................................................ L View in CoL . (Dysleptusa) smetanaiella Pace

- Antennomere 4 longer than wide; hind wings present ................................................................................................ 7

7. Antennomere 5 longer than wide ( Fig. 3 View FIGURE 3 a); carina on each side of surface of head incomplete (fading before attaining gular suture); mesoventrite with short carina...................................... L. (Adoxopisalia) pseudosmokyiensis View in CoL n. sp.

- Antennomere 5 subquadrate ( Fig. 4 View FIGURE 4 a); carina on each side of ventral surface of head complete (attaining gular suture); mesoventrite without carina..................................................................... L. (Adoxopisalia) smokyiensis Pace View in CoL

8. Head, pronotum and elytra opaque and velutinous...................................................................................................... 9

- Head, pronotum and elytra somewhat glossy ............................................................................................................. 11

9. Antennomere 5 subquadrate ( Fig. 5 View FIGURE 5 a); male abdominal tergites VII – VIII without single median elongate tubercle ( Fig. 5 View FIGURE 5 f) ........................................................................................................................ L. (Adoxopisalia) View in CoL stocksi n. sp.

- Antennomere 5 longer than wide ( Fig. 2 View FIGURE 2 a); male abdominal tergites VII – VIII with single median elongate tubercle ( Fig. 2 View FIGURE 2 f) ....................................................................................................................................................................... 10

10. Posterior margin of male abdominal tergite VIII without tubercle ( Fig. 2 View FIGURE 2 f); flagellum approximately twice length of median lobe ( Fig. 2 View FIGURE 2 j).................................................................................................... L. (Adoxopisalia) opaca Casey View in CoL

- Posterior margin of male abdominal tergite VIII with tubercles ( Klimaszewski et al. 2004: Fig. 45); flagellum at least 3 times longer than length of median lobe ( Klimaszewski et al. 2004: Fig. 44).................................................... ................................................................................................ L. (Adoxopisalia) pseudopaca Klimaszewski & Majka View in CoL

11. Abdominal tergite VI transverse (at least 1.7 times wider than long), posterior margin of abdominal tergite VIII emarginate ( Figs. 6 View FIGURE 6 f, 6h), male abdominal tergite VIII with single median elongate tubercle ( Fig. 6 View FIGURE 6 f) ................... 12

- Abdominal tergite VI subquadrate (less than 1.5 times wider than long), abdominal tergite VIII with rounded posterior margin ( Figs. 9 View FIGURE 9 f, 9h, 10f, 10h), male abdominal tergite VIII without median tubercle ( Figs. 9 View FIGURE 9 f, 10f)............... 13

12. Antennomere 4 subquadrate, 5 transverse ( Fig. 6 View FIGURE 6 a); carina on each side of ventral surface of head complete (attaining gular suture); posterior margin of male abdominal tergite VIII without tubercle ( Fig. 6 View FIGURE 6 f) ...................................... ................................................................................................................................. L. (Dysleptusa) carolinensis Pace View in CoL

- Antennomere 4 longer than wide, 5 subquadrate ( Klimaszewski et al. 2004: Fig. 12); carina on each side of ventral surface of head incomplete (fading before attaining gular suture); posterior margin of male abdominal tergite VIII with several tubercles ( Klimaszewski et al. 2004: Fig. 22)..................................... L. (Boreoleptusa) canonica Casey View in CoL

13. Mesoventrite not carinate; median lobe in dorsal view somewhat thick ( Pace 1989: Fig. 639), flagellum longer than 1/2 length of median lobe ( Fig. 9 View FIGURE 9 k) ......................................................................... L. (Eucryptusa) brevicollis Casey View in CoL

- Mesoventrite with short carina, reaching approximately 1/3 length of mesoventrite; median lobe in dorsal view slen- der ( Fig. 10 View FIGURE 10 l), flagellum shorter than 1/2 length of median lobe ( Fig. 10 View FIGURE 10 k) .................... L. (Eucryptusa) ferroi View in CoL n. sp.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Staphylinidae

Genus

Leptusa

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