Dichotomius (Luederwaldtinia) ocellatopunctatus Felsche 1901, new combination
Creators: name: Vaz-De-Mello, Fernando Z.
name: Nunes, Rafael V.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Dichotomius
Dichotomius ocellatopunctatus

description: Dichotomius (Luederwaldtinia) ocellatopunctatus (Felsche 1901), new combination
Fig. 2
Pinotus ocellatopunctatus Felsche, 1901 p.141
Pinotus ocellatopunctatus Luederwaldt, 1929 p. 74 Pinotus ocellatopunctatus Pereira 1947 p. 319
Material studied. Lectotype, here designated: Ƌ. Venezuela (green label) / Coll. C. Felsche Kauf 20, 1918 (green label) / Typus (orange label) / Staatl. Museum für Tierkunde Dresden (white label) / LECTOTYPE Pinotus ocellatopunctatus Felsche des. F.Z.Vaz-de-Mello, 2014 (red label) / ocellatopunctatus Felsche Venezuela (white with purple margins) [SMTD]. Paralectotype: 2♀. Merida (white label) / Coll. C. Felsche Kauf 20, 1918 (green label) / Staatl. Museum für Tierkunde Dresden (white label) / PARALECTOTYPE Pinotus ocellatopunctatus Felsche des. F.Z.Vaz-de-Mello, 2014 [SMTD].
Diagnosis. D. ocellatopunctatus belongs to Dichotomius (Luederwaldtinia) (see diagnosis of D. benesi). It is also assigned to the batesi species-group due the presence of ocellate punctures on the pronotal disc and the lacking of sickle-shaped calcar. In this group, D. ocellatopunctatus is differentiated from the others by the following combination of characteristics: ocellate punctures on the pronotal disc irregularly-spaced; pronotal disc and elytral surface chagrinated; longitudinal sulcus along the posterior margin of the femura widened beyond its half and cephalic process absent.
Redescription of Lectotype (male). Length: 13 mm. Pronotum width: 7 mm. Dorsal surface opaque, black. Head: anterior margin of the clypeous with a deep “u” shaped emargination forming two rounded teeth. Clypeogenal junction rounded, not angulating. Clypeal surface smooth at the front and with ocellate punctures anteriorly and laterally. Gena and intraocular space also bearing sparse ocellate punctures. Clypeo-genal suture present. Cephalic process absent—only with a very weak marked knob. Antenal club with brown light tumescence. Pronotum: quite wider than long and with the same elytra width. Lacking knobs, horns or excavations. Pronotal disc convex with sparse ocellate punctures. Anterior angles rounded. Hypomeron: with sparse ocellate setose punctures—setae short, scattered and not present in all punctures. Prosternum: bearing ocellate punctures equally spaced all over its extension. Mesosternum: also bearing ocellate punctures almost all over its extension, except at the middle, which is narrower, smooth and shinny. Metasternum: glabrous. Mesometasternal suture ill marked, but distinct. Anterior portion of the metasternal lobe bearing few sparse ocellate punctures. Portion between metacoxae bearing ocellate punctures. Lateral portions bearing ocellate punctures equally spaced and with few short setae. Anterior lobe width with the same length of the mesofemur. Longitudinal sulcus feebly marked. Elytra: having humeral callus. Striae well defined with ocellate punctures spaced by their diameter. Ninth striae (pseudoepipleuron) not reaching elytral basis. Interstriae with chagrinated microsculpture (20x). Legs: anterior tibiae bearing three teeth. Anterior calcar curved at the apical fifth. Posterior calcar emarginated. Ventral surface of the anterior femur bearing ocellate punctures all over its extension. Ventral surface of the mesofemur bearing ocellate punctures only near the junction with the tibiae. Ventral surface of the metafemur bearing ocellate punctures on distal half. Meso and meta femur bearing a longitudinal groove along the posterior margin and widened beyond its half. Abdomen: abdominal ventrites with short scattered setae on sides and with ocellate punctures along the anterior margin. Pygidium: twice wider then long and bearing ocellate coarse punctures more concentrated near the basis.
Morphological variation. Female (Paralectotype), length: 11 mm. Pronotum width: 5.5 mm. Differ from the male by its 6th abdominal segment, that has twice the width of any other ventrite.
Distribution. Venezuela, Merida.
Remarks. Dichotomius ocellatopunctatus shares with D. batesi and D. globulus the pronotal disc punctures irregularly-spaced and the longitudinal sulcus along the posterior margin of femora widened beyond its half.
description: Published as part of Vaz-De-Mello, Fernando Z. & Nunes, Rafael V., 2016, New species, redescription and taxonomic notes in the Dichotomius (Luederwaldtinia) batesi (Harold) species-group (Coleoptera: Scarabaeidae: Scarabaeinae), pp. 294-300 in Zootaxa 4139 (2) on pages 297-298, DOI: 10.11646/zootaxa.4139.2.12, http://zenodo.org/record/264822