Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae) Author Guzman, Yoan Camilo AD8443F6-89D0-4F71-9F67-4040D20ECB02 Museum and Institute of Zoology, Polish Academy of Sciences, Warsaw, Poland. ycamiloguzmans@gmail.com Author Tokareva, Alexandra F2DB3539-310F-4453-81FA-A6BC0D5C885D Museum and Institute of Zoology, Polish Academy of Sciences, Warsaw, Poland. atokareva@miiz.waw.pl Author Koszela, Katarzyna 06C16202-4569-4156-9FB1-EA4DEE14AE88 Museum and Institute of Zoology, Polish Academy of Sciences, Warsaw, Poland. kat.koszela@gmail.com Author Żyła, Dagmara 0A7FEB0F-308C-4FDF-AD0D-8074BC69F0B3 Museum of Nature Hamburg, Leibniz Institute for the Analysis of Biodiversity Change, Hamburg, Germany. ycamiloguzmans@gmail.com text European Journal of Taxonomy 2024 2024-06-24 942 1 76 https://europeanjournaloftaxonomy.eu/index.php/ejt/article/download/2581/11745 journal article 10.5852/ejt.2024.942.2581 2118-9773 12550288 DF991BC4-1761-4C5D-96E5-EFC62F8F7D1A Neolindus luxipenis Guzman, Tokareva & Żyła sp. nov. urn:lsid:zoobank.org:act: B0810A98-899B-46D2-8654-16AFB54371E1 Fig. 7 ; Supp. file 2 Diagnosis Neolindus luxipenis Guzman, Tokareva & Żyła sp. nov. is most similar to N. lirellus and N. brachiatus . However, N. luxipenis differs from N. lirellus in sternite VII by the more pronounced central process of posterior margin, and tergite VIII, where the posterior margin is rounded ( Fig. 7C–D ; Herman 1991 : figs 108–109, 111). In comparison to N. brachiatus , sternite VII of N. luxipenis has a central narrower emargination, with 2 protruded processes on each side and invaginated surface around emargination; in N. brachiatus central emargination is wider and the processes are less protruded ( Fig. 7C ; Herman 1991 : fig. 101). Etymology The name combines the Latin word ‘ luxus ’ for ‘luxury’ or ‘extravagant’ and ‘ penis ’ which addresses the aedeagus here. It refers to an elaborate structure of aedeagus in the species. An adjective. Type material Holotype BOLIVIA • ♂ ; “ Neolindus luxipenis Guzman, Tokareva & Żyła 2024 HOLOTYPE [red label] \\ Cochabamba , Cochabamba , 67.5 km NE , Est. Biol. Valle de Sajita , Univ. de San Simon ; 300 m [m a.s.l.]; 17°6’33’’S , 64°47’52’’W ; 9–13 Feb 1999 ; F. Genier Leg. ; BOL1G99 069; ex: light intercept trap \\ SM0173627 KUNHM-ENT [barcode]”; KUNHM-ENT . Paratype BOLIVIA • 1 ♂ ; “ Neolindus luxipenis Guzman, Tokareva & Żyła 2024 PARATYPE [yellow label] \\ same data as for holotype \\ 7 Feb 1999 ; R. Anderson Leg.; BOL1A99 027; ex: rain forest litter \\ SM0169264 KUNHM-ENT [barcode]”; KUNHM-ENT . Description MEASUREMENTS . BL (8.08), H (0.46, 0.7), A (1.08), a1 (0.25, 0.09), a2 (0.09, 0.06), a3 (0.14, 0.07), a4 (0.07, 0.07), a5 (0.01, 0.08), a6 (0.08, 0.09), a7 (0.09, 0.08), a8 (0.09, 0.08), a9 (0.08, 0.08), a10 (0.06, 0.09), a11 (0.12, 0.09), NKW (0.33), GL (0.21), P (0.78, 0.83), E (0.94, 0.91), PC (0.52, 0.27), PF (0.7, 0.34), PT (0.44, 0.12), MSC (0.34, 0.22), MSF (0.75, 0.17), MST (0.48, 0.08), MTC (0.36, 0.26), MTF (0.8, 0.22), MTT (0.69, 0.1). COLOURATION . Head and pronotum brown; coxa, femur and tibia brown, tarsomeres light brown; abdomen brown. HEAD . Head capsule wider than long; anterior margin sinuate, dorsoventrally deflexed, slightly elevated; posterior margin rounded; setation with 1 pair of PCS, 1 row of PMS, and 2 long setae at neck articulation. Epicranial setation with 1 pair of FS and 2 pairs of PFS, without OS. Gena with irregular surface, with depression from mandibular base to middle of eye, setation with 1 OT, 1 pair of MS, POS and PTOS; sockets of MS umbilicate; sockets of POS concave. Postgena with row of 3 setae in line from eye to gular suture; gular sutures reaching posterior margin of head, joining neck pits; anterior part of gula with 2 setae; posterior margin of head with 1 seta on each side of gular sutures. Neck with foramen magnum occupying ⅔ of occiput. Antenna moniliform from antennomere 5, shorter than head and pronotum combined ( Fig. 7A ), antennomeres 1–4, 6–8, and 11 longer than wide, antennomeres 5, 9, 10 wider than long; tomentose pubescence starting from antennomere 4; antennomere 1 as long as antennomeres 2 and 3 combined, antennomere 3 longer than 2. Labrum bilobed, emargination U-shaped, with 2 dark thick seta in median line of labrum lobes ( Fig. 7A ; Supp. file 2). THORAX . Pronotum nearly quadrate, with umbilicate micropunctures and 2 distinct paramedial rows of setae; anterior margin slightly convex. Metasternal intercoxal process with 1 pair of obtuse processes. Elytron longer than wide, surface of elytra with umbilicate micropunctures in 5–7 moderately dense longitudinal rows ( Fig. 7A ; Supp. file 2). LEGS . Protibia with 4 well-developed combs of setae; apical comb composed of widely separated, thick setae; mesotibial apical ctenidium only on outer side; mesotarsomere 1 longer than 2, mesotarsomere 3 as long as 2, mesotarsomere 4 as long as 2, mesotarsomere 5 longer than 1; metatarsomere 1 longer than 2, metatarsomere 2 longer than 3, metatarsomere 3 as long as 4, metatarsomere 5 equal to metatarsomere 1. ABDOMEN . Male : segments V–VII wider than III, IV, and VIII. Tergites III–VI with high density of micropunctuation; tergites VII and VIII with low density of micropunctuation, punctures randomly distributed. Posterior margin of tergite VII straight ( Fig. 7B ). Posterior margin of sternite VII with median tooth-like processes ( Fig. 7C ). Tergite VIII with 4 internal canals with carinated margins; 2 median canals forming quadrate area. Posterior margin of tergite VIII apically extended and rounded ( Fig. 7D ). Sternite VIII with broad midlongitudinal emargination covering ⅓ of segment length, starting as narrow and widening towards rounded lateral edges ( Fig. 7E ). Posterior margin of tergite IX with midlongitudinal deep emargination ½ of segment length, fused; aedeagus, median lobe with uniform width from base to apex, apex emarginate; pLS flat with rounded edges, expanded laterally and folded inward; APS complex with 2 processes, each process with 2 arms, apical arm acute, frontal arms bend downward and subdivided to long tooth and group of several small teeth at top of acute process; pPMS absent ( Fig. 7F–I ). Female : unknown. Fig. 7. Neolindus luxipenis Guzman, Tokareva & Żyła sp. nov. , holotype, ♂ (KUNHM-ENT). A . Habitus, dorsal view. B−E . Abdominal segments, posterior margin schemes. B . Tergite VII. C . Sternite VII. D . Tergite VIII. E . Sternite VIII. F−I . Aedeagus. F . Parameral view. G . Parameral view scheme. H . Lateral view. I . Lateral view scheme. Scale bars: A = 1 mm; B–I = 0.25 mm. Distribution This species is known only from the type locality in Bolivia ( Cochabamba , Cochabamba , Valle de Sajta Biological Station). It was collected at a lower altitude ( 300 m a.s.l.) using a flight interception trap.