Neolindus volkeri Guzman, Tokareva & Żyła, 2024

Guzman, Yoan Camilo, Tokareva, Alexandra, Koszela, Katarzyna & Żyła, Dagmara, 2024, Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae), European Journal of Taxonomy 942, pp. 1-76 : 64-67

Neolindus volkeri Guzman, Tokareva & Żyła sp. nov.

urn:lsid:zoobank.org:act:2DDCFAA0-665A-41E8-8F11-6B69B9E06A7A

Fig. 23 ; Supp. file 2

Diagnosis

Neolindus volkeri Guzman, Tokareva & Żyła sp. nov. resembles N. schubarti and N. irmleri in aedeagus morphology. However, in N. volkeri , the median invagination on the parameral side of the median lobe is wider than in the other two species ( Herman 1991: fig. 210; Asenjo 2011: fig. 2; Fig. 23F–G ). Unlike the two similar species, N. volkeri has a deep midline emargination with a convex median part on the posterior margin of sternite VII, with acute protruding processes on both sides (emargination shallow and without processes in both N. schubarti and N. irmleri ) ( Herman 1991; fig. 208; Asenjo 2011: fig. 4; Fig. 23C ). Additionally, the posterior margin of tergite VIII has deeper pair of emarginations surrounded by invaginated areas (shallower and without invagination in N. schubarti and N. irmleri ) ( Fig. 23D ; Herman 1991: fig. 206; Asenjo 2011: fig. 6).

Etymology

This species is dedicated to the great taxonomist, Volker Assing, who passed away prematurely. He was a renowned specialist in Palaearctic and Oriental Paederinae and described two species of Neolindus .

Type material

Holotype FRENCH GUIANA • ♂; “ Neolindus volkeri Guzman, Tokareva & Żyła 2024 HOLOTYPE [red label] \\ Roura , 8.4 Km SSE; 200 m [m a.s.l.]; 4°40’41’’N, 52°13’25’’W; 25–29 May 1997; J. Ashe, R Brooks Leg.; FG1 AB97 O88; ex: flight intercept trap \\ SM0133899 KUNHM-ENT [barcode]”; KUNHM-ENT. Paratypes FRENCH GUIANA • 1 ♂; “ Neolindus volkeri Guzman, Tokareva & Żyła 2024 PARATYPE [yellow label] \\ Roura , 8.4 lm SSE; 200 m; 4°40’41’’N, 52°13’25’’W; 25–29 May 1997; J. Ashe, R. Brooks Leg.; FG1 AB97 O88; ex: flight intercept trap \\ SM0133900 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for preceding; “ SM0131259 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for preceding; “ 26 May–10 Jun 1997; FG1 AB97 182 \\ SM0330895 KUNHM-ENT [barcode] \\ Neolindus sp. det. J.S. Ashe 1998”; KUNHM-ENT .

Description

MEASUREMENTS. BL (12.95), H (1.46, 1.82), A (4.04), a1 (0.63, 0.12), a2 (0.13, 0.09), a3 (0.37, 0.09), a4 (0.22, 0.07), a5 (0.28, 0.09), a6 (0.29, 0.08), a7 (0.28, 0.08), a8 (0.27, 0.07), a9 (0.23, 0.08), a10 (0.18, 0.08), a11 (1.16, 0.82), NKW (0.62), GL (0.4), P (1.46, 1.82), E (2.22, 1.99), PC (0.6, 0.36), PF (1.01, 0.42), PT (0.62, 0.26), MSC (0.56, 0.54), MSF (1.54, 0.27), MST (0.86, 0.15), MTC (0.53, 0.44), MTF (1.69, 0.36), MTT (1.24, 0.17).

COLOURATION. Head and pronotum dark brown; legs brown; abdomen dark brown.

HEAD. Head capsule wider than long; anterior margin straight, posterior margin rounded, posterior angles rather rounded; setation with 1 pair of PCS and multiple PMS arranged in 1 row. Epicranium with umbilicate, highly dense micropunctuation, setation with 1 pair of FS and 1 pair 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 and POS concave. Postgena with row of 3 setae in line from eye to gular suture; gular sutures not reaching head posterior margin; anterior part of gula with irregular row of 6–8 setae. Neck with foramen magnum occupying ½ of occiput. Antenna thin and elongate, longer than head and pronotum combined, all antennomeres longer than wide, tomentose pubescence starting from antennomere 3, antennomere 1 as long as antennomere 2 and 3 combined, antennomere 3 longer than 2. Labrum tetralobed, central lobes well-developed, central emargination shallow, V-shaped, with 2 dark thick seta in median line of labrum lobes ( Fig. 23A ; Supp. file 2).

THORAX. Pronotum nearly quadrate, with umbilicate micropunctures and 2 distinct paramedial and lateral rows of setae. Basisternum of prosternum with 4 anterior setae and 1 posterior pair of setae. Metasternal intercoxal process with 1 pair of acute processes. Elytron longer than wide, surface of elytra with umbilicate micropunctures in 8–9 moderately dense longitudinal rows ( Fig. 23A ; Supp. file 2).

LEGS. Protibia with 5well-developed combs of setae;mesotibial apical ctenidium on both sides,inner longer than outer; mesotarsomere 1 as long as mesotarsomere 2, mesotarsomere 3 shorter than mesotarsomere 1 and as long as mesotarsomere 4, mesotarsomere 5 as long as mesotarsomere 1; inner ctenidium of metatibia longer than outer; metatarsomere 1 longer than metatarsomere 2, metatarsomere 2 as long as metatarsomeres 3 and 4 combined, metatarsomere 3 longer than metatarsomere 4, metatarsomere 5 as long as metatarsomere 2.

ABDOMEN. Tergites with low density, randomly placed micropunctures. Posterior margin of tergite VII straight ( Fig. 23B ). Male: posterior margin of sternite VII with moderate emargination and acute processes on each side ( Fig. 23C ). Posterior margin of tergite VIII trilobed, acute triangular lobe in middle and slightly acute-angled lateral lobes, each as long as central lobe ( Fig. 23D ). Posterior margin of sternite VIII with shallow midlongitudinal emargination and rounded lateral angles ( Fig. 23E ). Posterior margin of tergite IX with midlongitudinal deep emargination about ¾ of segment length; aedeagus, median lobe robust, strongly sclerotised, medially widened, apex with 2 sclerotised processes, deep midpoint emargination reaching middle of lobe, edges of emargination with brush of 5–7 short, dark setae; pLS small, oval, hidden under APS; APS oval, spoon-shape, covering pLS and pPMS. pPMS of complicated form, with several lamellas and arms, anchored with sclerotised ring under membrane ( Fig. 23F–I ). Female: lack of emargination on posterior margin of sternite VII; posterior margion of tergite VIII slightly sinuated.

Distribution

The species is only known from the type locality in French Guiana, (Cayenne, Roura). It was collected at a low altitude using a flight interception trap.

Figures

Fig. 23. Neolindus volkeri 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: 1 = mm; B–I = 0.5 mm.