Neolindus minutus 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 : 27-31

Neolindus minutus Guzman, Tokareva & Żyła sp. nov.

urn:lsid:zoobank.org:act:D5782A9D-41EE-4C22-93EB-31655E31E39B

Fig. 9 ; Supp. file 2

Diagnosis

Neolindus minutus Guzman, Tokareva & Żyła sp. nov. and N. bullus are the smallest species in the genus with body length no longer than 4 mm. Both species have the same shape of the posterior margin of sternite VIII with U-shaped median emargination, but it is deeper in N. minutus ( Herman 1991: fig. 154; Fig. 9E ). Other differences are in the shape of the posterior margin of tergite VIII, which is rounded in N. minutus ( Fig. 9D ), but emarginated in N. bullus ( Herman 1991: fig. 157). Furthermore, aedeagus in

N. minutus has a different form of median lobe as well as structure and composition of apical sclerites ( Herman 1991: fig. 156; Fig. 9F–G ).

Etymology

The Latin epithet ‘ minutus ’ means ‘very small, little, minute’ and describes the noticeably smaller size of this species of Neolindus compared with others. An adjective.

Type material

Holotype GUYANA • ♂; “ Neolindus minutus Guzman, Tokareva & Żyła 2024 HOLOTYPE [red label] \\ Region 8, Iwokrama Forest , 1 km W Kurupukari, Iwokrama Field Stn [Station]; 60 m [m a.s.l.]; 4°40’19’’N, 58°41’4’’W; 21 MAY 2001, R. Brooks, Z. Falin, GUY1BF01 005 ex: Acromyrmex hystrix refuse pile \\ SMO568781 KUNHM-ENT [barcode]”; KUNHM-ENT.

Paratypes ECUADOR • 1 ♀; “ Neolindus minutus Guzman, Tokareva & Żyła 2024 PARATYPE [yellow label] \\ Napo, Yuturi Longe, Rio Napo ; 270 m; 0°32’54’’S, 76°02’18’’W; 20–21 Mar 1999; R. Brooks, D. Brzoska Leg.; ECU1B99 010; ex: flight interception trap \\ SM0153469 KUNHM-ENT [barcode]”; KUNHM-ENT .

FRENCH GUIANA • 1 ♀; “ Neolindus minutus Guzman, Tokareva & Żyła 2024 PARATYPE [yellow label] \\ Saül , 7 km N, 0.5 km ESE, Les Eaux Claires, Mt. La Fumée; 3°39’46’’N, 53°13’19’’W; 300 m; 4–8 Jun 1997; J. Ashe, R. Brooks Leg.; FG1AB97 164; ex: flight interception trap \\ SM0134044 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; “ Roura, 39.4 km SSE; 270 m; 4°32’43’’N, 52°8’26’’W; 25–29 May 1997; J. Ashe, R. Brooks Leg.; FG1AB97 076; ex: flight interception trap \\ SM0131319 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; “ 27.4 km SSE; 280 m; 4°44’20’’N, 52°13’25’’W; 25–29 May 1997; J. Ashe, R. Brooks Leg.; FG1AB97 079; ex: flight interception trap \\ SM0101388 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for preceding; “FG1AB97 177; ex: \\ SM0133995 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; “ Cayenne, 33.5 km S and 8.4 km NW of HWY N2 on HWY D5; 30 m; 4°48’18’’N, 52°28’41’’W; 25–29 May 1997; J. Ashe, R. Brooks Leg.; FG1AB97 171; ex: flight interception trap \\ SM0131037 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; “ Saül, 7 km N, Les Eaux Claires; 220 m; 3°39’46’’N, 53°13’19’’W; 30 May–4 Jun 1997; J. Ashe, R. Brooks Leg.; FG1AB97 143B; ex: flight interception trap \\ SM0099466 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; “Roura, 39.4 km SSE; 270 m; 4°32’43’’N, 52°8’26’’W; 29.May–10 Jun 1997; J. Ashe, R. Brooks Leg.; FG1AB97 172; ex: flight interception trap \\ SM0099394 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; same data as for preceding; “FG1AB97 076 \\ SM0131322 KUNHM-ENT [barcode]”; KUNHM-ENT .

GUYANA • 1 ♀; same data as for holotype; “PARATYPE [yellow label] \\ GUY1BF01 034 \\ SM0566025 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for holotype; “GUY1BF01 034 \\ SM0567438 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for holotype; “GUY1BF01 034 \\ SM05661128 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for holotype; “GUY1BF01 034 \\ SM0566308 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for holotype; “GUY1BF01 034 \\ SM0565913 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for holotype; “GUY1BF01 034 \\ SM0567446 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for holotype; “GUY1BF01 146 \\ SM0567615 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; same data as for holotype; “GUY1BF01 097 \\ SM0570780 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; same data as for holotype; “GUY1BF01 034 \\ SM0566193 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; same data as for holotype; “GUY1BF01 034 \\ SM05661153 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; same data as for holotype; GUY1BF01 034 \\ SM056663 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; “ Kabocalli Field Stn [Station]; 3–5 Jun 2001; GUY1BF01 146 \\ SM0567596 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; “ Turtle Mt. [Mountains] Summit; 290 m; 4°43’57’’N, 58°44’1’’W; 30 May–1 Jun 2001; GUY1BF01 09 \\ SM0570865 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♂; “ Kabocalli Field Stn ; 60 m; 21 May 2001; GUY1BF01 005; ex: Acromyrmex sp. \\ SM0568401 KUNHM-ENT [barcode]”; KUNHM-ENT .

NICARAGUA • 1 ♀; “ Rio San Juan Dept. [Departamento], 60 km SE San Carlos, Refugio Bartola ; 100 m; 10°58’52.5”N, 84°20’08.9”W; 25–28 May 2002; R. Brooks, Z. Falin, S. Chatzimanolis Leg.; ex: flight interception trap; NIC1BFC02 112 \\ SM0555340 KUNHM-ENT [barcode]” • 1 ♀; same data as for preceding “NIC1BFC02 112 \\ SM0540900 KUNHM-ENT [barcode]” • 1 ♀; same data as for preceding; “NIC1BFC02112 \\ SM0540901 KUNHM-ENT [barcode]”; KUNHM-ENT .

PERU • 1 ♀; “ Madre de Dios, Concha Cashu Bio. Stn [Biological Station], Manu National Park ; 350 m; 11°53’45’’S, 71°24’24’’W; 17–19 Out 2000; R. Brooks Leg.; PERU1B00 042; ex: flight interception trap \\ SM0210599 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; “Concha Salvador, Reserved Zone Manu National Park ; 310 m; 12°0’13’’S, 71°31’36’’W; 20–21 Out 2000; R. Brooks Leg.; PERU1B00 070; ex: flight interception trap \\ SM0210838 KUNHM-ENT [barcode]”; KUNHM-ENT • 1 ♀; “ Pantiacolla Lodge , Alto Madre de Dios River; 400 m; 12°39’22’’S, 71°13’55’’W; 23–26 Out 2000; R. Brooks Leg.; PERU1B00 099; ex: flight interception trap \\ SM0210824 KUNHM-ENT [barcode]”; KUNHM-ENT .

Description

MEASUREMENTS. BL (2.65), H (0.3, 0.3), A (0.65), A1 (0.09, 0.03), A2 (0.31, 0.02), A3 (0.03, 0.03), A4 (0.03, 0.04), A5 (0.04, 0.05), A6 (0.04, 0.05), A7 (0.04, 0.06), A8 (0.04, 0.06), A9 (0.04, 0.06), NKW (0.20), GL (0.1), P (0.43, 0.44), E (0.54, 0.46), PC (0.25, 0.13), PF (0.29, 0.1), PT (0.13, 0.08), MSC (0.17, 0.09), MSF (0.26, 0.07), MST (0.21, 0.06), MTC (0.13, 0.1), MTF (0.27, 0.09), MTT (0.21, 0.06).

COLOURATION. Head and pronotum brown, legs light brown, abdomen brown.

HEAD. Head capsule nearly as wide as long; anterior margin sinuate, dorsoventrally deflexed, slightly elevated; posterior margin rounded, with emargination in front of neck; posterior angles rounded; setation with 1 pair of PCS and 2 pairs of PMS, central and distal. Epicranium shiny, without micropunctuation, setation with 1 pair of FS, without OS and PFS. Gena with irregular surface, with depression from mandibular base to posterior margin of head, setation with 1 OT, MS, and POS. Sockets of MS and POS umbilicate, socket of OT oval, narrowed anteriorly. Postgena with 1 seta 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 2 setae near gular sutures. Neck with foramen magnum occupying ¾ of occiput. Antenna moniliform from antennomere 5, shorter than head and pronotum combined ( Fig. 9A ); antennomeres 1 and 2 longer than wide; antennomeres 3–9 wider than long; antennomeres 10–11 longer than wide, tomentose pubescence starting from antennomere 5; antennomere 1 shorter than antennomeres 2 and 3 combined. Labrum slightly bilobed ( Fig. 9A , Supp. file 2).

THORAX. Pronotum quadrate, with umbilicate micropunctures, setation with 1 pair of setae in middle of dorsal side and 1 pair of setae in posterior third part of dorsal side; anterior margin slightly convex with anterior angles rounded; posterior margin rounded and slightly emarginate, posterior angles rounded. Metasternal intercoxal process with 1 pair of acute processes. Elytron longer than wide, surface of elytra with moderately dense umbilicate punctures in 4–5 longitudinal rows ( Fig. 9A ; Supp. file 2).

LEGS. Protibia with 2 well-developed combs of setae; mesotibial apical ctenidium with spines; mesotarsomere 1 longer than 2, mesotarsomeres 3 and 4 as long as 2, mesotarsomere 5 longer than 1;

metatarsomere 1 as long as 2, metatarsomeres 3 and 4 as long as metatarsomere 2, metatarsomere 5 longer than 1.

ABDOMEN. Tergites with low-density randomly distributed micropunctuation. Posterior margin of tergite and sternite VII straight ( Fig. 9B–C ). Posterior margin of tergite VIII apically rounded ( Fig. 9D ). Male: posterior margin of sternite VIII with midlongitudinal U-shaped emargination, ⅓ of segment length, lateral angles rounded ( Fig. 9E ). Posterior margin of tergite IX with midlongitudinal deep emargination in ¾ of segment length; aedeagus, median lobe widened in first half, narrowed to apex; with wide oval median invagination above basal foramen; apex of lobe with 2 spoon-shaped flattened lobes with acute tips and rounded lateral edges, joined with U-shape emargination. pPMS fused in conical structure folding inside median foramen. pLS long, narrow, acute, curved. APS absent, antiparameral side membranous, with bilobed cover folding pLS ( Fig. 9F–I ). Female: lack of emargination on abdominal segments VIII and IX.

Distribution

The species is known from the type locality in Guyana (Region 8, Potaro-Siparuni, Iwokrama Field Station), and several other countries, i.e., Ecuador (Napo, El Eden), French Guiana (Cayenne, MontsineryTonnegrande; Regina-Kaw; Roura, Roura; Saül, Cambrouze), Nicaragua (Rio San Juan, El Bambu), Peru (Madre de Dios, Fitzcarrald District and Itahuania). The holotype has a note that it was collected from the Acromyrmex hystrix (Latreille, 1802) refuse pile. One paratype specimen was also collected near ants from the same genus ( Acromyrmex Mayr, 1865 ), while the others by using a flight interception trap.

Figures

Fig. 9. Neolindus minutus 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.