Lispinus
Creators: name: Irmler, Ulrich
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Lispinus

description: Key to Lispinus species of Peru
1. Sides of pronotum dilating posteriad or parallel, without distinct emargination anteriad posterior angle (Figs. 10 A, 10B) .............................................................................................................................................................................. 2
- Sides of pronotum narrowing to posterior angles or with distinct emargination anteriad posterior angle (Figs. 10 C– 10F) ............................................................................................................................................................................. 5
2. Sides of pronotum dilating posteriad, pronotum nearly twice as wide as long (Fig. 10 A); 3rd antennomere nearly 3
times as long as 2nd ............................................................................................................. L. laticollis Erichson, 1840 - Sides of pronotum in front of posterior angles parallel, pronotum slightly wider than long (Fig. 10 B); 3rd antennom- ere not more than 2 times as long as 2nd........................................................................................................................ 3
3. Each elytron with lateral furrow on disc (Figs. 5–7); pronotum slightly narrowed at middle, but parallel in front of posterior angles; microsculpture of elytra closely and longitudinally reticulate, iridescently shiny .............................. ................................................................................................................................................ L. striola Erichson, 1840
- Elytra without lateral furrows on disk, only with two large setiferous punctures each; microsculpture of elytra net- like reticulate and not iridescently shiny....................................................................................................................... 4
4. Elytra very finely and sparsely punctate (Fig. 10 H); 3rd antennomere less than twice as long as 2nd, paramera of aede- agus trilobed ............................................................................................................... L. laeviusculus Bernhauer, 1910
- Elytra densely and distinctly punctuate; 3rd antennomere twice as long as 2nd; paramera of aedeagus bilobed ............ .......................................................................................................................................... L. attenuatus Erichson, 1840
5. Pronotum straightly narrowed to posterior angles, without emargination in front of posterior angels (Fig. 10 C) ...... 6
- Pronotum distinctly emarginate in front of posterior angles, emargination short in some species (Figs. 10 D–10F). 12
6. Body larger, 5.4–5.7 mm; elytra with net-like reticulate microsculpture, fine punctation and on disc with two large setiferous punctures each .......................................................................................... L. quadripunctulus Fauvel, 1865
- Body smaller, <5.0 mm................................................................................................................................................ 7
7. Body smaller, 3.8–4.0 mm; elytra with weak, longitudinally reticulate microsculpture, surface shiny ...................... 8
- Body larger, 4.5–4.8 mm, with more distinct microsculpture of elytra ....................................................................... 9
8. Elytra quadrate, their punctation sparser, distance between punctures about the same as diameter of punctures (Fig. 10 I) ............................................................................................................................................ L. newtoni Irmler, 1994
- Elytra longer than wide, their punctation denser and deeper, distance between punctures much less than diameter of punctures (Fig. 7 E) .............................................................................................................................. L. minimus n.sp.
9. Elytra with weak net-like reticulate microsculpture (Fig. 8 E); pronotum with fine and sparse punctation, distance between punctures twice as wide as diameter of punctures, surface of pronotum and elytra slightly shiny (Fig. 8 P)... ........................................................................................................................................................... L. speciosus n.sp.
- Ground sculpture of elytra dense and longitudinally reticulate, surface of elytra dull .............................................. 10
10. Posterior angles of pronotum obtusely rounded; endophallus of aedeagus with one torsion .... L. tardus Sharp, 1887
- Posterior angles of pronotum rectangular; endophallus of aedeagus with more than one torsion ........................... 11
11. Both elytra and pronotum wider than long ......................................................................... L. listenbarthi Irmler, 1994
- Both elytra and pronotum longer than wide .............................................................................. L. lunaris Irmler, 1994
12. Depressions at posterior angles of pronotum deeply margined at outer side and with dense reticulation, their surface dull ............................................................................................................................................................................. 13
- Depressions at posterior angles not deeply margined at outer side, smoothly depressed, their surface not distinctly differing from surface of disc ..................................................................................................................................... 15
13. Body larger, 4.7 mm ............................................................................................................................ L. blandus n.sp.
- Body smaller, <4 mm ................................................................................................................................................. 14
14. Sides of pronotum rounded anteriad posterior emargination, widest in middle (Fig. 10 E) ........................................... ....................................................................................................................................... L. bolivianus Bernhauer, 1929
- Sides of pronotum more or less parallel anteriad posterior emargination, widest near front angles (Fig. 1) ................. ........................................................................................................................................................... L. peruanus n.sp.
15. Each elytron with a row of deeply impressed punctures forming more or less fine deep furrow similar to the one in L. striola .......................................................................................................................................... L. catena Sharp, 1876
- Elytra without furrows, on disc of each elytron often with one or two deeper and larger setiferous punctures than normal punctation ...................................................................................................................................................... 16
16. Punctures of pronotum and elytra deep and dense, distance between punctures less than half diameter of punctures, surface shiny, sparsely covered by short undulate micro-striae................................................ L. socialis Irmler, 1994
- Punctures of pronotum and elytra less deep and sparser, their ground sculpture more distinct and dense, their surface only slightly shiny ...................................................................................................................................................... 17
17. Elytra with transversely reticulate ground sculpture (Fig. 10 L)................................................ L lescheni Irmler, 2001
- Elytra with longitudinally reticulate ground sculpture ............................................................................................... 18
18. Elytra about as long as wide; abdominal tergites laterally with strigae; body smaller ≤ 3.5 mm .................................. .............................................................................................................................................. L. linearis Erichson, 1840
- Elytra longer than wide; abdominal tergites without strigae; body larger, 4.0– 4.3 mm ............................................. 19
19. Microsculpture of pronotum and elytra distinct and dense, their surface dull; depression at posterior angles of prono- tum flat .................................................................................................................................. L. fungicola Irmler, 2001
- Microsculpture of pronotum and elytra weaker, their surface shiny; depression at posterior angles of pronotum deep (Fig. 10 F) .................................................................................................................... L. sinuatocollis Bernhauer, 1942
description: Published as part of Irmler, Ulrich, 2009, New species and records of the genus Lispinus with a key to the species from Peru (Coleoptera: Staphylinidae: Osoriinae), pp. 42-58 in Zootaxa 2263 on pages 55-56, DOI: 10.5281/zenodo.190786