Neolindus bicornis Guzman, Tokareva & Żyła sp. nov.

urn:lsid:zoobank.org:act: A3AE98B8-192C-498F-82DA-F147AF44B503

Fig. 4; Supp. file 2

Diagnosis

This species is similar to N. apiculus and N. campbelli in having a broad emargination of sternite VIII (Herman 1991: figs 168, 173; Fig. 4E). However, the structure of the aedeagus in N. bicornis Guzman, Tokareva & Żyła sp. nov. is different (Herman 1991: figs 170, 174; Fig. 4F–I). It resembles the aedeagus of N. triangularis Guzman, Tokareva & Żyła sp. nov., but it differs by having a rounded base of the median lobe and a narrower pLS in their middle part (the base of the median lobe acute in N. triangularis) (Figs 4F–I, 20F–I).

Etymology

The name is a combination of the Latin prefix ‘ bi ’ meaning ‘two’ and the Latin word ‘ cornum ’, which means ‘a horn’. It describes the characteristic form of apical aedeagal sclerites. An adjective.

Type material

Holotype FRENCH GUIANA • ♂; “ Neolindus bicornis Guzman, Tokareva & Żyła 2024 HOLOTYPE [red label] \\ Roura, 18.4 Km SSE, 240 m [m a.s.l.]; 4°36”38”N, 52°13’25’’W; 29 May–10 Jun 1997; J. Ashe, R Brooks Leg.; FG1AB97 180; ex: flight intercept trap \\ SM0100688 KUNHM-ENT [barcode]”; KUNHM-ENT.

Paratypes FRENCH GUIANA • 2 ♀♀, 2 ♂♂; “ Neolindus bicornis Guzman, Tokareva & Żyła 2024 PARATYPE [yellow label] \\ Cayenne, Roura, 27.4 Km SSE; 280 m [m a.s.l.]; 4°44’20”N, 52°13’25’’W; 10 Jun 1997; J. Ashe, R Brooks, FG1AB97 177 ex: flight intercept trap \\ [barcode] SM0133909 KUNHM-ENT ”; KUNHM-ENT • 1 ♂; same data as for preceding; “ SM0133998 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; “ 18.4 Km SSE; 240 m; 4°36”38”N, 52°13’25’’W; 25–29 May 1997; FG1AB97 081; ex: flight intercept trap \\ SM0098969 KUNHM-ENT [barcode]”; KUNHM-ENT .

Description

MEASUREMENTS. BL (9), H (0.49, 1.04), A (1.71), a1 (0.34, 0.11), a2 (0.14, 0.07), a3 (0.26, 0.08), a4 (0.12, 0.09), a5 (0.13, 0.09), a6 (0.12, 0.08), a7 (0.12, 0.09), a8 (0.11, 0.09), a9 (0.11, 0.08), a10 (0.11, 0.09), a11 (0.14, 0.1), NKW (0.49), GL (0.21), P (1.09, 1.29), E (1.59, 1.39), PC (0.5, 0.29), PF (0.86, 0.39), PT (0.65, 0.15), MSC (0.4, 0.46), MSF (1.13, 0.29), MST (0.82, 0.11), MTC (0.46, 0.25), MTF (1.15, 0.28), MTT (0.9, 0.13).

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

HEAD. Head capsule wider than long; anterior margin sinuate, dorsoventrally deflexed, slightly elevated; posterior margin straight with emargination in front of neck; posterior angles straight; setation with 1 pair of PCS and 1 row of PMS. Epicranium with umbilicate, low-density micropunctuation, setation with 1 pair of FS and 1 pair of PFS, without OS. Gena with depression from mandibular base to middle of eye, setation with 1 OT, MS, POS and PTOS; sockets of MS and POS umbilicate. Postgena with row of 2 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. Neck with foramen magnum occupying ¾ of occiput. Antenna moniliform from antennomere 3, shorter than head and pronotum combined; antennomeres longer than wide, tomentose pubescence starting from antennomere 3; antennomere 1 shorter than antennomeres 2 and 3 combined, antennomere 3 longer than 2. Labrum bilobed, emargination deep, U-shaped, with 2 dark, thick seta in median line of labrum lobes (Fig. 4A, Supp. file 2).

THORAX. Pronotum slightly wider than long, with randomly distributed umbilicate micropunctuatoin and slightly convex anterior margin. Basisternum of prosternum with tuberculate micropunctuation. Metasternal intercoxal process with 1 pair of acute processes. Elytron longer than wide, surface of elytra with moderately dense umbilicate punctures in 8–10 longitudinal rows (Fig. 4A; Supp. file 2).

LEGS. Protibia with 4 well-developed combs of setae, apical comb longitudinal, composed of widely separated, thick setae; mesotibial apical ctenidium on both sides, inner longer than outer; mesotarsomere 1 as long as mesotarsomere 2, mesotarsomere 3 shorter than mesotarsomere 1, but 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 longer than metatarsomere 3, metatarsomere 4 as long as metatarsomere 3, metatarsomere 5 shorter than 1 but longer than 2.

ABDOMEN. Male: posterior margin of sternite VII sinuate, with midlongitudinal emargination and rounded lateral angles (Fig. 4C). Posterior margin of tergite VIII with elongate rounded apex (Fig. 4D). Posterior margin of sternite VIII with median V-shaped emargination and rounded lateral angles (Fig. 4E). Posterior margin of tergite IX with midlongitudinal deep emargination in ¾ of segment length, wider at margin and narrow towards apex; aedeagus, median lobe rounded at base, widening apically and well-sclerotised; pLS fused into flattened arcuate sclerite of almost even width with 2 acute processes on each side protruding distad from median foramen and ending bent to antiparameral side. APS flattened, arcuate, smaller than pLS, with 2 acute processes on each side protruding distad from median foramen and ending bent to parameral side, shorter than processes of pLS. pPMS not visible (Fig. 4F–I). Female: lack of emargination on abdominal segments.

Distribution

This species is known from the type locality in French Guyana (Cayenne, Roura) and the surrounding area. It was collected by a flight interception trap at an altitude of 240–280 m a.s.l.