Bibrax popeye Asenjo, Concha-Lozada, Gallego-Ropero & Gouvea 2024, sp. nov.
Creators: name: Asenjo, Angélico
name: Lozada, Clara Milena Concha
name: Ropero, Maria Cristina Gallego
name: Gouvea, Bruno
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Bibrax
Bibrax popeye

description: Bibrax popeye Asenjo, Concha-Lozada, Gallego-Ropero & Gouvea, sp. nov.
http://zoobank.org/ urn:lsid:zoobank.org:act: 78E71ECB-D6CF-45F6-A80F-783A17236F74
(Figs 1–23, 33)
Type material (1 ♂, 5 ♀♀).
Holotype: COLOMBIA: ♂, labeled [dissected]: “COLOMBIA: Dpto. [Department of] Cauca, / Municipio de Piamonte, / vereda El Rosal, Bosque / El Rosal, 315m,”, “+ 1.0436111, -76.43388889, [1°2’37.00”N, 76°26’2.00”W] / 24.ix[September].2017, Winkler, / C. Concha & M.C. Gallego- / Ropero leg.”, “T3 E10, Winkler, Ved. [Vereda] El / Rosal, M PO. Piamonte, F. / 24 sep[September]. 2017, Morfo 455#1”, “HOLOTYPE [red label]/ Bibrax / popeye sp. nov. / Desig. Asenjo et al., 2024” (MHNUC).
Paratypes (5 ♀♀): COLOMBIA: ♀: “COLOMBIA: Dpto. [Department of] Cauca, / Municipio de Piamonte, / vereda El Rosal, Bosque El Rosal, 315m,”, “+ 1.0436111, -76.43388889, [1°2’37.00”N, 76°26’2.00”W] / 29.ix[September].2017, Winkler, / C. Concha & M.C. Gallego- / Ropero leg.”, “T1 E7, Winkler, Ved. [Vereda] El / Rosal, M PO. Piamonte, F. / 29 sep[September]. 2017, Morfo 455#1” (MHNUC).
♀,[dissected]; “ COLOMBIA:Dpto.[Department of] Cauca,/ Municipio de Piamonte,/ Vereda La Sonora, Bosque / Finca La Reserva, 300m,”, “+ 1.1072222, -76.26444444,[1°6’26.00”N, 76°15’52.00”W] / 5.x[October].2017, hand collected, / C. Concha & M.C. Gallego- / Ropero leg.”, “T2 E6, Colecta Manual, / Ved. [Vereda] La Sonora, M PO. / Piamonte, F. 5 oct.[October] 2017, / Morfo 435#1” (MPEG).
♀, “ COLOMBIA: Dpto. [Department of] Cauca, / Municipio de Piamonte, / Vereda La Sonora, Bosque / Finca La Reserva, 300m,”, “+ 1.1072222, -76.264444,[1°6’26.00”N, 76°15’52.00”W] / 5.x[October].2017, Winkler, / C. Concha & M.C. Gallego- / Ropero leg.”, “T2 E5, Winkler, Ved. [Vereda] La / Sonora, M PO. Piamonte, / F. 5 oct[October]. 2017, Morfo 435#1” (MHNUC).
♀, “ COLOMBIA: Dpto. [Department of] Cauca, / Municipio de Piamonte, / Vereda La Sonora, Bosque / Finca La Reserva, 300m,”, “+ 1.1072222, -76.264444,[1°6’26.00”N, 76°15’52.00”W] / 5.x[October].2017, Winkler, / C. Concha & M.C. Gallego- / Ropero leg.”, “T1 E10, Winkler, Ved. [Vereda] La / Sonora, M PO. Piamonte, / F. 5 oct.[October] 2017, Morfo 435#1” (MHNUC).
♀, [dissected]; “ COLOMBIA:Dpto.[Department of] Cauca, / Municipio de Piamonte,/ Vereda La Sonora, Bosque / Finca La Reserva, 300m,”, “+ 1.1072222, -76.264444,[1°6’26.00”N, 76°15’52.00”W] / 5.x[October].2017, Winkler, / C. Concha & M.C. Gallego- / Ropero leg.”, “T1 E6, Winkler, Ved. [Vereda] La / Sonora, M PO. Piamonte, / F. 5 oct.[October] 2017, Morfo 435#1” (MHNUC).
All paratypes labeled “ PARATYPE [yellow label] / Bibrax / popeye sp. nov. / Desig. Asenjo et al., 2024”.
Diagnosis. For diagnostic characters see the key to the species.
Description. Holotype male, BL: 4.69. Antennae, head, pronotum, and elytra reddish dark brown. Mouthparts, abdomen, legs, and tarsi light brown (Figs 1–8, 9, 10).
Head: pyriform (Figs 9, 10), longer than wide (HL: 0.87; HW: 0.59), anterior region (rostrum) distinctly narrower ending and slightly raised apically at antennal tubercle with heart shape. Genae rounded and narrower to neck. Neck almost 3/4 of width (NW: 0.29) of head, and lateral margins straight and oblique (Fig. 9). Head with two vertexal foveae [vf] near posterior margin, connected by a transverse sulcus. Ventral surface of head with one short curved sulcus that connects the two gular foveae [gf]; one spine-like process on both anterior sides of gular plate (Fig. 9). Compound eyes prominent and multifaceted (Fig. 9), situated at middle of head length. Antennae (Fig. 9) almost 2/3 length of body, scape almost half antenna length, last three antennomeres abruptly widened. Scape length (without peduncle) 1.22 mm, width 0.13 mm, pedicel shorter than scape (length 0.36; width 0.1), antennomere 3 longer than wide (length 0.16; width 0.11); antennomeres 4 to 8 subquadrate: 4 (length 0.12; width 0.11), 5 (length 0.12; width 0.11), 6 (length 0.09; width 0.10), 7 (length 0.10; width 0.11), 8 (length 0.08; width 0.10); antennomeres 9 and 10 wider than long: 9 (length 0.09; width 0.13), 10 (length 0.09; width 0.14); antennomere 11 pentagonal shape (length 0.18; width 0.18); all antennomeres covered by long setae. Labrum transversal with one large tooth in each lateral side and one small tooth in the middle of anterior edge. Mandibles with four or five small teeth in internal edge of each one.
Thorax (Fig. 10): pronotum cordiform (PL: 0.68; PW: 0.66), widest on anterior half, with anterior and basal margin convex, and with one lateral longitudinal sulcus on each side. Pronotum convex, with median antebasal fovea [maf] central and lateral antebasal foveae [laf] on posterior half; posterior margin with one center basal foveae, one inner basolateral foveae [iblf] and one outer basolateral foveae [oblf] on each side (Fig. 10). Prosternum with lateral procoxal fovea [lpcf] (Fig. 11). Mesoventrite with prepectal fovea [ppf] and lateral mesosternal fovea [lmsf] (Fig. 11). Metaventrite with lateral mesocoxal foveae [lmcf], and lateral metasternal fovea [lmtf] (Fig. 11).
Elytra (Fig. 1): cordiform (EL: 1.17; EW: 1.16), sides curved (Fig. 1), widest at middle. Basal margin concave and apical margin slightly concave, humeri with one small tubercle. Elytron with three basal elytral foveae [bef] at basal margin, one on side of elytral suture, one near at middle, and another near to external side (Fig. 10). Elytron with sutural stria [ss], discal stria [ds], and one small stria on middle of apical external side (Fig. 1). Apical-lateral margin of elytra slightly pointed. Flight wings were not studied.
Legs (Figs 1, 3, 5, 7): Legs long and thick (Fig. 1). Femora thickened at apex (Fig. 1), metafemora are even thicker (Figs 1, 7). Protibiae thickened in middle and slightly curved (Fig. 3); meso-metatibiae straight and thickened at apex (Fig. 5). Length of tibiae similar to length of femora. Tarsi 3-segmented, first tarsomeres very short and last 2 tarsomeres longer, tarsomere 2 longer than segment 3 (Figs 3–7); all tarsi with one single claw and one minute accessory seta. Procoxae and mesocoxae conical and prominent, metacoxae transverse, region that articulates with meta-trochanter conical shaped (Fig. 11). Procoxae, mesocoxae, and metacoxae contiguous (Fig. 11). Metatrochanters with one strong securiform prolongation (Fig. 11). Mesotibiae with one apical serrated strong tooth (Fig. 5). Protibiae lacking microsetae on concave, mesial face, which is carinate and one additional longitudinal carinate on internal edge (Fig. 3), this area is open in its base. Metatibiae with large truncate prolongation near apical region of internal edge (Fig. 7).
Abdomen (Fig. 1): lateral border slightly marginated, with five visible tergites (morphological tergites V– IX), tergite VIII with rounded apex (Fig. 1). Tergites IV–VII bordered by distinct paratergites, and tergum VIII of triangular shape (Fig. 1). Sternite III with transverse depressed plate completely bare and beneath metacoxae, transverse plate with longitudinally projecting carina at middle. Sternites IV–VI with basal transversal sulcus disrupted by one small longitudinal triangle carina on middle; Sternum VII with long transversal sulcus, and one small prolongation on each side of posterior edge. Sternum VIII emarginated with small truncate prolongation on middle of apical edge, and with one transversal depression before of apical prolongation (Fig. 20); one apodemal plate in internal region of sternum VIII articulated with base of aedeagus (Figs 15, 18).
Aedeagus: Bulbous divided into three articulated segments, basal segment slim in lateral view, medial segment bulbous, and distal segment tubular with microspines on apex (Figs 15, 16, 18, 19).
Female. Similar to male (Fig. 2), except by eyes with lower number of ommatidium (Figs 2, 12–13). Elytron with two basal elytral foveae [bef] at basal margin (Fig. 13). Mesotibia without strong apical tooth (Fig. 6). Metatrochanters without any prolongation (Fig. 14), metafemur thinner (Fig. 6), metatibiae without one large truncate prolongation on apical region (Fig. 8). Sternum VII without one small prolongation on each side of posterior edge, and sternum VIII without one small truncate prolongation on middle of apical edge (Fig. 23). Genital complex (Fig. 21) with trapezoidal shape, and posterior border straight. Hole with carinated edge on anterior side (Fig. 21). Spermatheca apparently membranous, as it was not observed after clearing specimens using 10% potassium hydroxide.
Habitat. The specimen was found in the leaf litter of an Andean-Amazonian transition ecosystem, at a height of approximately 400 meters above sea level and average temperatures of 23ºC.
Distribution (Fig. 33). Only known from two localities of the Department of Cauca from Colombia, vereda El Rosal (Bosque El Rosal) and vereda La Sonora (Bosque Finca La Reserva).
Etymology. The specific epithet name “popeye ” refers to the thickened femora, similar to the arms of the animated cartoon “Popeye”. This is a noun in apposition.
Key to species of genus Bibrax Fletcher
- Eyes composed of one ommatidium (Figs 24–25, 30–31). Sternum VIII of male with any prolongations on the posterior edge (Fig. 27). Metatrochanters without any prolongation. Basal segment of aedeagus reduced and distal segment slim (Fig. 28).................................................................................. Bibrax bradleyi Fletcher
- Eyes prominent and multifaceted (Figs 9–10, 12–13). Sternum VIII of male with two small prolongations on the posterior edge (Fig. 20). Metatrochanters of male with one securiform prolongation (Fig. 11). Basal segment of aedeagus no reduced and distal segment thick (Fig. 19).............................................................. Bibrax popeye sp. nov.
description: Published as part of Asenjo, Angélico, Lozada, Clara Milena Concha, Ropero, Maria Cristina Gallego & Gouvea, Bruno, 2024, Description of a new species of Bibrax Fletcher from Colombia with an updated diagnosis and key to species (Coleoptera, Staphylinidae, Pselaphinae), pp. 105-115 in Zootaxa 5443 (1) on pages 107-113, DOI: 10.11646/zootaxa.5443.1.5, http://zenodo.org/record/10997105