Scaptophilus cribrarius Fairmaire, 1878: 266

Duarte, Paulo R. M. & Grossi, Paschoal C., 2016, Rediscovery of Bothynus cribrarius (Fairmaire) (Coleoptera, Melolonthidae, Dynastinae, Pentodontini): description of the male and precise location data, Revista Brasileira de Entomologia 60 (4), pp. 290-292 : 291-292

Scaptophilus cribrarius Fairmaire, 1878: 266

Description: Male. Total length: 20.0– 21 mm. Width across humeri 10.5–11.0 mm. Color in dorsal view dark brown, opaque; ventral view darker, densely setose ( Figs. 1–3 ). Head: Clypeus triangular, strongly rugopunctate, apex contracted to 2 small teeth, sides slightly reflexed. Frontoclypeal suture weak, almost obsolete in smaller male. Frons transverse, moderately arched, strongly rugopunctate, and with 2 setose areas laterally. Mandibles tridentate, apical and middle teeth acuminate, basal tooth smaller, rounded. Ocular canthi slightly rounded, with scattered setae beneath. Mentum short, transverse, triangular, base concave. Pronotum: Shape transverse, about twice as wide as long, surface strongly convex. Pronotal fovea moderately concave, extending to about a third of anterior pronotal width and strongly and transversely wrinkled with some punctures on sides. Surface uniformly punctate, moderate on disk, and dense on sides, with larger, setose punctures; sides rounded, slightly raised. Apical tubercle large, conical, base transverse. Elytra: Surface opaque, moderately and uniformly punctate; punctures setose, moderate in size, some coalescent, becoming denser laterally. Striae distinctly punctate; sutural striae present, removed from suture by about 3–4 puncture diameters. Interstriae indistinct. Apical umbone smooth. Scutellum subtriangular, apex rounded, surface sparsely punctate. Legs: Femora densely setose, setae long, light reddish brown. Protibiae tridentate, apical tooth curved and more acute than others, middle tooth wider, basal tooth smaller. Protarsi with claws different in shape and size; inner claw strongly curved, incised, longer, incision deeply bifurcated ( Fig. 9 ), outer claws simply curved. Meso- and metatibae with 2 transverse carinae on external surface; mesotibiae distinctly shorter than metatibiae; apex of meso- and metatibiae with 25–40 spinules. Venter: Surface densely setose, setae almost covering thoracic sternites; metathorax with center longitudinally concave, shallow. Abdominal sternites weakly setose on disk, denser on sides; fifth sternite with C-shaped punctures, denser than previous segments; sixth sternite emarginated at apex, surface densely punctate; punctures fine, coalescent. Propygidium completely setose except on disk where punctures coalesce and form weak ridges; stridulatory area confined to disk. Pygidium setose, slightly convex, with strong, transverse, coalescent punctures. Aedeagus: Parameres symmetrical strongly contracted to apex, apex dilated ( Fig. 7 ). In lateral view with a carina. Surface weakly rugose mainly at middle; basal half with ventral tooth in lateral view; phallobase about 2 times longer than parameres ( Fig. 8 ).

Female. Differs from male in the following aspects: Pronotal surface less punctate; apical tubercle about 1/2 smaller; fovea almost obsolete, flattened, and simply punctate, punctures ocellate. Legs with protarsi simple, claws similar in shape, not incised nor strongly curved.Pygidium less convex, nearly flat and more setose. Metathorax with narrower; abdominal sternites more distinctly punctate, sixth sternite parabolic, completely setose ( Figs. 4–6 ).

Material examined

Holotype female (MNHN). Examined, labeled: “ Brésil ”. Endrödi (1969) designated a lectotype for this species, but this was incorrect because Fairmaire (1878) specifically stated that there was only one specimen. Article 74.2 (ICZN, 1999) stipulates that a unique specimen is to be regarded as a holotype. Although Endrödi (1969) just below his lectotype designation mentioned another female specimen from NHM and also as a lectotype what was another mistake that must be disregarded. The holotype identification labels are available at the following site: http://coldb.mnhn.fr/catalognumber/mnhn/ec/ec7107.

Additional material. BRASIL, Rio de Janeiro: Resende, Serrinha do Alambari , ii.2010, U. Caramaschi & H. Niemeyer legs. [1♂ MNRJ]. Itatiaia, 20.iv.1933, ♂ , Col. J. F. Zikán, [1♂ FIOC]; Itatiaia, Parque Nacional do Itatiaia, Casa do Pesquisador , 27.ii-01.iii- 2012, 750 m, M. Cupello leg. [1♀ MNRJ] .

Figures

Figs. 1–9. Bothynus cribrarius. 1–3, male in dorsal, lateral and ventral views respectively; 4–6, female in dorsal, lateral and ventral views respectively; 7–8, parameres and aedeagus in caudal and lateral views respectively (arrow indicates ventral tooth); 9, male anterior right claws. Scale bars (Figs.1–6 = 0.5cm; Figs. 7–9= 2 mm).