Liogenys testaceipennis Moser, 1918

Cherman, Mariana Alejandra, Mise, Kleber Makoto, Moron †, Miguel Angel, Vaz-de-Mello, Fernando Z. & Almeida, Lucia Massutti de, 2017, A taxonomic revision of Liogenys occurring in Brazil with an interactive key and remarks on New World Diplotaxini (Coleoptera, Melolonthidae), ZooKeys 699, pp. 1-120 : 68-70

Liogenys testaceipennis Moser, 1918 Figs 76, 90

Liogenys testaceipennis Moser, 1918: 109 (orig. desc.); Blackwelder 1944: 228 (check.); Frey 1969: 47 (key); Evans 2003: 214 (check.); Evans and Smith 2005: 178 (check.); Evans and Smith 2009: 182 (check.)

Liogenys seabrai Martínez, 1957: 51 (orig. desc.); Evans 2003: 214 (check.); Evans and Smith 2005: 178 (check.); Evans and Smith 2009: 182 (check.) Syn. n.

Type material.

Liogenys testaceipennis male holotype (ZMHB): [white printed] “Brasil”, [white handwritten] " Liogenys / testaceipennis /Mos./Type", [red printed] “Typus”, "HOLOTYPUS/ Liogenys / testaceipennis Moser, 1918/labelled by MNHUB 2013". Genitalia mounted.

Liogenys seabrai male holotype (MACN): [white handwritten] "Ene-957/BRASIL/Rio Janeiro/D.F. TIJUCA/C. A. C. Seabra/ A. Martínez- coll.", [red printed] HOLOTYPUS, [red handwritten] " Liogenys / seabrai (M)/ sp. N./ [printed] A. MARTÍNEZ- DET. 1957".

Non-type material.

BRAZIL. RJ: Manguinhos, 22/IX/1913, R. Fischer Col., 2 ex.; 28/IX/1916, R. Fischer col., 1 ex.; 19/X/1917, R. Fischer col., 1 ex.; 22/X/1917, R. Fischer col., 2 ex. (SDEI); Tijuca, I/1957, C. A. C. Seabra and A. Martinez col., 1 ex. (MACN); Seabra (CMNC); 4/XI/1957, A. Martinez col. (MNRJ); II/1957, M. Alvarenga col., 1 ex. (DZUP); Corcovado, 5/XI/1937; Friedr. Tippmann Wien col, 1 ex. (ZMHB); 15/IX/1961, J. S. Moure col. 1 ex. (DZUP); IX/1961, IX/1961, C. A. Seabra and M. Alvarenga (DZUP); Galeão, XI/1953, M. Alvarenga, 1 ex. (DZUP); Praia Brava, V/1975, Jesus col., 1 ex. (CEIOC); Represa Amorim, I/1933, Travassos col., 1 ex. (CEIOC); Jacarepagua, I/1957, A. Martinez col., 1ex. (CMNC).

Diagnosis.

Body brownish; elongate; elytra testaceous to brownish, pronotum darker, reddish brown in males and dark brown in females; clypeal emargination rounded and wide; outer sides of anterior teeth sub-parallel; clypeal lateral margin convex in males, straight in females; male mesotibia quadrate in cross section, sub-quadrate to cylindrical in females; pygidium varies from flat to convex, as wide as it is long; pygidial disc bristled only on apex. In males, metafemur medially produced on posterior margin; inner margin of metatibia medially produced and ventrite IV medially produced; parameres of genitalia near three times the length of their apex; inner margins straight; apex harpoon-like, lateral angle curved projecting almost perpendicular to parameres (Fig. 76G).

Redescription.

Length: 13.0-13.8 mm; width: 6.3-6.7 mm. Testaceous to brownish. Head: distance between eyes nearly twice the width of one eye; frons equal in length to clypeus; clypeal emargination rounded, shallow and wide; outer sides of anterior teeth sub-parallel; outer margin of anterior teeth shorter than the eye; clypeal lateral margin concave in males, straight in females; distal maxillary palpomere, maximum width less than twice width of apex; fovea shallow, extending past the transverse midline of the palpomere; labium transversely carinated, as wide as it is long; antenna 10-articulated, lamellae lighter in color and longer than flagellum. Thorax: anterior margin of pronotum slightly produced medially; maximum length of pronotum exceeding the length of tarsomeres I, II and III together; disc glabrous, punctures fine and sparse; pronotal posterior corners sharp, almost right-angled; proepisternum with short bristles; mesepisternum scaly; sides of metasternum scaly and bristled, few long bristles on the anterior margin; distance between meso- and metacoxae up to twice longer than the metacoxa; scutellum ogival, coarsely punctured at the sides. Elytra: shiny, glabrous, uniform testaceous, lighter in color than the pronotum; elytra more than three times longer than the pronotum; elytral suture slightly darker than elytron and distinctly elevated; two pairs of inner ridges more noticeable than the two outer pairs. Legs: procoxa bristled on infra-carinal and outer surface; punctures visible at 12 × magnification; three protibial teeth, middle and apical equal in size; the three teeth equally spaced; protibial inner apical spur present; mesofemur with a row of long bristles on anterior and posterior margins; male mesotibia quadrate in cross section, sub-quadrate to cylindrical in females; disc coarsely sculptured, metatibial apical transverse carina in males partial or complete, in females always complete; basal apophysis of metacoxa produced beyond the outer margin of trochanter; metatibia with posterior discontinuous longitudinal carina; metatibial apical spurs equal in length, length equal to the diameter of the tibial apex; male metafemur medially produced on posterior margin; inner margin of male metatibia carinated and medially produced towards apex, apical inner surface setose; metatibial disc finely sculptured; metatibial transverse carina present posteriorly; basal metatarsomere slightly wider and equal to or slightly longer than tarsomere II; in males, protarsomere II long; pro- and mesotarsomeres I to IV enlarged, protarsomeres slightly wider than the mesotarsomeres and more than twice as wide as metatarsi; claw bifid, symmetrical, superior tooth longer and as wide as the inferior; distance between teeth as long as the inferior tooth. Abdomen: ventrites bristled on disc; propygidium visible, glabrous; pygidium flat or convex, sub-trapezoidal, as wide as it is long; pygidial width not exceeding distance between spiracles of propygidium, pygidial disc bristled only on apex; ventrite IV in males medially produced; male pygidial apex quadrate. Parameres: width of basal region equal to the parameres together at its transverse midline, parameral split at the third portion; total length of parameres near three times the length of their apex; inner margins straight; apex harpoon-like with lateral angle projecting almost perpendicular to parameres (Fig. 76G). In lateral view parameres concave (Fig. 76H).

Type-locality.

Liogenys testaceipennis : BRAZIL; Liogenys seabrai . BRAZIL.Tijuca, RJ [Rio de Janeiro state]. (Syn.)

Geographical distribution.

BRAZIL (RJ).

Remarks.

Liogenys testaceipennis (Fig. 76F) differs from L. spiniventris (Fig. 73F) in the spine-like projection only on ventrite IV in males; the clypeal emargination rounded, clypeal lateral margin concave and not produced and pronotal punctures more sparsely distributed. Liogenys testaceipennis (ZMHB) and L. seabrai (MACN) primary types were studied and we concluded that they are conspecific, so herein L. seabrai is designated junior subjective synonym of L. testaceipennis .