Liogenys lucialmeidae Cherman & Basílio & Mise & Frisch & Smith & Almeida 2020, new species
Creators: name: Cherman, Mariana A.
name: Basílio, Daniel S.
name: Mise, Kleber M.
name: Frisch, Johannes
name: Smith, Andrew B. T.
name: Almeida, Lúcia M.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Melolonthidae
Liogenys
Liogenys lucialmeidae

description: Liogenys lucialmeidae Cherman, new species
Figs. 6, 12 A–B, 15
Type material. Holotype, male, labeled (CMNC): [white typeset] “ ARGENTINA: Mendoza / Reserva La Payunia, Los Relinchos / S36º00’59’’W68º48’39’’ / Jan-6-2003, 1714 m / F.C. Ocampo, A.B.T. Smith”, [red typeset and handwritten] “ LIOGENYS / LUCIALMEIDAE / HOLOTYPE / Cherman M.A.”, genitalia mounted. Paratypes (20) labeled [yellow typeset and handwritten] “ LIOGENYS LUCIALMEIDAE / PARATYPE / Cherman M. A.”: six females with the label (four at CMNC, two at DZUP (402743-44)): [white typeset] “ ARGENTINA: Mendoza / 1 km Reserva Telteca / S32º 18’40’W67º54’08’’ / Jan-04- 2003, 540 m / F.C. Ocampo, A.B.T. Smith ”. One male (IADIZA): [white handwritten] “ Malarg ̹e: A 7 km de / Ranquil Norte, camino / a Barrancas [Neuquen Prov.] / 23- I-79 / Sergio Roig ”, [circle full blue, indicating C. Berg collection]. One male and one female paratypes (IADIZA): [white typeset] “ ARGENTINA: Chubut Peninsula de / Valdés 8km S Punta norte / 42º12’20’’S 63º52’5,9’’W 42 m / 14-I-2010 Coll: G. Flores, G. Cheli, / R. Carrara”. One male paratype (AMNH): [white typeset] “ ARGEN-TINA / El Bolson, Rio / Negro / 19 [space] / A. Kovacs ”. Two males mounted on cards on the same pin (CMNC): [handwritten by A. Martínez] “ ARGENTINA / RIO NEGRO / Cnel. Gómez / J. Grosso-leg. / Coll. Martínez / NOV-945”, [typeset, outlined black] “H. & A. HOWDEN / COLLECTION / ex. A. Martinez coll.”, [typeset with data matrix barcode] “Canadian Museum of / Musée canadien de la / NATURE / CMNEN 00029587 ”. One male (CMNC): [typeset] “ARG: Nuequin / nr Zapala / 19–21.XII.1965 / A. Martinez ”, [typeset, outlined black] “H. & A. HOWDEN / COLLECTION / Ottawa, Canada”, [typeset with data matrix barcode] “Canadian Museum of / Musée canadien de la / NATURE / CMNEN 00029588 ”. One male (CMNC): [typeset] “ARG: Nuequin / nr Zapala / 19–21.XII.1965 / A. Martinez ”, [typeset, outlined black] “H. & A. HOWDEN / COLLECTION / Ottawa, Canada ”, [typeset with data matrix barcode] “Canadian Museum of / Musée canadien de la / NATURE / CMNEN 00029589 ”. One male (CMNC): [typeset] “ 24-XI-1955 / Villa Regina / Pcia. Rio-Negro / Lg. E.Fleiss ”, [typeset, outlined black] “H. & A. HOWDEN / COLLECTION / ex. A. Martinez coll.”, [typeset with data matrix barcode] “Canadian Museum of / Musée canadien de la / NATURE / CMNEN 00029590 ”. One male (CMNC): [typeset] “SA. VACA MUERTA / (950 M. S.N.M.) / NEUQUEN-ARG.”, [typeset] “14-XII-74 / LG.M.GENTILI”, [typeset, outlined black] “H. & A. HOWDEN / COLLECTION / ex. A. Martinez coll.”, [typeset with data matrix barcode] “ Cana-dian Museum of / Musée canadien de la / NATURE / CMNEN 00029591 ”. One male and three females (NHMW): [typeset] “ ARGENTINIEN / Neuquen Anelo / 26.10.1981 leg. KOVAC ”. The male with the voucher: [typeset with data matrix barcode] “SCARABS OF / SOUTHERN / SOUTH AMERICA / SSSA3002724 ”. The females with the sequence of vouchers: [typeset with data matrix barcode] “SCARABS OF / SOUTHERN / SOUTH AMERICA / SSSA3002787-89 ”.
Holotype and 10 paratypes deposited at CMNC. Two paratypes deposited at DZUP. Three paratypes deposited at IADIZA. One paratype deposited as AMNH. Four paratypes at NHMW.
Diagnosis. Body elongate; dull yellow, pronotum and elytra unicolored or pronotum slightly darker (Fig. 6A), frons swollen, mainly in females; in males clypeal emargination deep, subangulate to rounded and wide; in females clypeus short and weakly emarginate (Fig. 12 A–B); antennae with 10 antennomeres; pronotum and head equal in length, posterior corners subangulate (Fig. 6B); in males pronotum with maximum length medially, in females pronotum with uniform length throughout (Fig. 12 A–B); elytra semi-opaque, with bristles uniformly, in males sometimes somewhat not uniformly pruinose; pygidium elongate or as wide as it is long, disc smooth, with bristles throughout (Fig. 6C); males with two protibial teeth; metatibia with inner margin weakly carinate towards the apex and one transverse carina incomplete (Fig. 6 D–E); parameres forming a concavity at the midline; slightly narrowed subapically; apex sagittate, curved upwards (Fig. 6 F–H).
Holotype. Male. Length: 9.4 mm; width: 4.3 mm. Uniform dull yellow. Head: distance between eyes almost three times the width of one eye; frons equal in length to clypeus, swollen; clypeal emargination deep, subangulate, wide; outer sides of anterior teeth subparallel, apparently following the lateral margin of clypeus, lateral margin straight; distal maxillary palpomere, maximum width two times the apical width; fovea deep, reduced to a point at the widest part of the palpomere; antenna with 10 antennomeres, club lighter in color than funicle. Thorax: anterior margin of pronotum slightly produced medially; pronotal disc with punctures fine and sparse; posterior corners subangulate, angle obtuse; hypomere with short bristles and a few scales at the inner margen; mesepisternum, sides of metaventrite and metacoxae with sparse bristles; distance between mesocoxae and metacoxae twice the metacoxa length; scutellum ogival, with a few punctures. Elytra: semi-pruinose, bristles dispersed randomly; elytral suture and elytron unicolored, weakly elevated; all four elytral ridges weakly defined (Fig. 6A). Legs: procoxa weakly scaly; protibia with two teeth equal in size; mesotibia cylindrical and somewhat flattened in cross section, mesotibial surface finely sculptured; mesotibia with one transverse carina only demarked posteriorly; inner margin of male metatibia weakly carinate towards the apex; surface finely sculptured; metatibia with one transverse carina incomplete; metatibial apical spurs of different lengths and shape, the longer spur equal to the diameter of the tibial apex, the shorter spur wider, truncate, and slightly projected downwards; metatarsomere I slightly shorter and equal in width to tarsomere II; protarsomeres and mesotarsomeres I–IV enlarged, protarsomere II as wide as long; mesotarsomeres less enlarged than the protarsomeres; claw bifid, symmetrical, superior tooth of a claw longer and slightly wider than the inferior tooth; distance between teeth longer than the length of inferior tooth. Abdomen: ventrites with sparse bristles; propygidium with bristles; pygidium slightly convex; subtrapezoidal, as long as wide; pygidial width not exceeding distance between spiracles of propygidium; pygidial disc smooth and with bristles throughout; pygidial apex subquadrate. Parameres: basal region as wide as both sections of the parameres at maximum width, parameral split at 2/3 the length of the basal region; inner margins convex at the dorsal plane, forming a concavity at the ventral plane; slightly narrowed subapically; apex sagittate, curved upwards; parameres convex in lateral view.
Variation. Male paratypes. Length: 10.0– 11.4 mm; width: 4.4–5.0 mm. As the holotype except in the lateral margin of clypeus more concave. Female paratypes. Length: 9.6–10.9 mm; width: 4.8–5.5 mm. As the holotype except in the clypeus short and weakly emarginate; pronotum shorter; elytral ridges more marked; and three protibial teeth.
Etymology. Noun in the genitive case. The species is dedicated to Dr. Lúcia Massutti de Almeida, a renowned Brazilian Coleopterist and mentor of the first author.
Type locality. ARGENTINA, Mendoza, Reserva La Payunia, Los Relinchos, 36º00’59’’S 68º48’39’’S, 1714 m.
Geographical distribution. ARGENTINA (Mendoza, Neuquén, Río Negro, Chubut).
Remarks. Liogenys lucialmeidae new species resembles L. flavida in the body size and color; shape of the clypeus, especially in females (Fig. 11 C–D); elytra with bristles; males with two protibial teeth and metatibia with one transverse carina incomplete. Liogenys lucialmeidae new species differs in the clypeal emargination deep in males (shallow); antennae with 10 antennomeres (9 antennomeres); pronotum shorter; males with inner margin of metatibia weakly carinate towards the apex (distinctly carinate); metatibia with the transverse carina more strongly defined; and the different shape of the parameres. The new species also resembles L. kuntzeni, especially the females in the shape of the clypeus (Fig. 11 E–F), differing from this species (in parenthesis) in the clypeal emargination rounder in males (angulate); lateral margins of clypeus straight or slightly concave but teeth never parallel (slightly convex, teeth parallel); females with the clypeal teeth even less noticeable and pronotum shorter; pygidium longer; males with one metatibial transverse carina incomplete (complete); and the shape of the parameres are different.
description: Published as part of Cherman, Mariana A., Basílio, Daniel S., Mise, Kleber M., Frisch, Johannes, Smith, Andrew B. T. & Almeida, Lúcia M., 2020, Liogenys Guérin-Méneville, 1831 (Coleoptera: Scarabaeidae: Melolonthinae) from the southern South American Transition Zone and boundaries: taxonomic overview with four new species, pp. 46-84 in Zootaxa 4896 (1) on pages 62-63, DOI: 10.11646/zootaxa.4896.1.2, http://zenodo.org/record/4359172