Dendropaemon (Paradendropaemon) vazdemelloi Genier & Arnaud, new species
Creators: name: François Génier
name: Patrick Arnaud
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Dendropaemon
Dendropaemon vazdemelloi

description: 32. Dendropaemon (Paradendropaemon) vazdemelloi Génier & Arnaud, new species
(Figs. 32, 92–93, 127, 159)
Dendropaemon (Paradendropaemon) ganglbaueri: Edmonds 1972, Univ. Kansas Sc. Bull. 49: 849 (diagnosis, comment) Dendropaemon (Paradendropaemon) ganglbaueri: Arnaud 2002, Col. Monde 28: 14 (monograph)
Dendropaemon (Paradendropaemon) ganglbaueri: Vaz-de-Mello & Génier 2009, Col. Bull. 63: 364 (biology)
Type locality. Fazenda Pontinha, Cordisburgo, Minas Gerais, Brasil.
Diagnosis. The extremely long, approximately 5 times as long as wide at apex, first metatarsomere will place D. vazdemelloi in Paradendropaemon. Differs from the only other species in the group, D. ganglbaueri, by the cylindrical first metatarsomere, the metatibial anterior surface which is completely covered with irregular sculpturing and punctures, the anterior pronotal margin which is more or less of the same width and convex lateral to the eye and by the smaller average size.
Description. Male holotype (Fig. 32). Body. Body large, length 15.0 mm, maximum width 10.0 mm; body elongate-oval in dorsal view; dorsum convex. Color. Dorsal surface dark brown to black, glossy, lacking metallic sheen; ventrum reddish brown to dark brown; pygidium reddish brown; legs dark reddish brown to black. Head. Clypeus broadly arcuate, anterior portion slightly upturned; clypeal teeth obtusely triangular; clypeal median emargination broadly v-shaped, clypeal edge emarginate on external side of each clypeal tooth, clypeal teeth ventral surface lacking carina, clypeal margin well-defined and sharply carinate posteriorly, clypeal surface with transverse rugulae; clypeogenal suture well-defined, bluntly carinate internally; genal surface with fine blunt transverse rugulae, lacking distinct transverse carina, concave laterally and convex internally; clypeofrontal carina rather low, approximately 4 times wider than high, straight in dorsal view, tuberculate medially, clypeofrontal carina apical edge trilobate, median lobe much higher than laterals in frontal view; eyes small in dorsal view, interocular ratio 6.0. Pronotum. Pronotum transverse in dorsal view, pronotal width/length ratio 1.5; disc of pronotum finely punctate basally, punctures changing into fine rough rugulae anteriorly, with an ill-defined shallow longitudinal depression on posterior half; pronotal anterior margin unmodified lateral to eye; anterior portion with a nearly straight and slightly tuberculate medially transverse carina bordering anteriorly a large concavity; anterior angles surface with fine rugulae, similar to lateral margin along posterior edge of anterior margin; lateral fossae simply rounded, concave; lateral portions slightly explanate; pronotal basal fossae ill-defined, slightly concave; posterior margin well-defined, lacking crenulation and setae. Elytra. Elytra slightly transverse, elytral combined width/length ratio 1.3; elytral base lacking distinct margin, simply convex; elytral striae 1–4 moderately wide, evenly impressed throughout, elytral striae 5 similar to 4 on disc, strial punctures minute, adjacent strial edge encroaching on interval, stria 1 weakly impressed apically, going straight to elytral apical margin; interstriae slightly convex, finely punctate throughout, surface glossy. Thoracic sterna. Proepisternal carina absent; metasternal median lobe angularly produced anteromedially, ventral ridge well-defined, keel-shaped. Legs. Profemur posterior surface convex, glabrous and punctate internally, posterointernal margin rather thin, evenly developed, internal edge wide, with a contiguous row of setae along anterointernal edge and few scattered long setae on anterior half, remaining surface with irregular punctures and glossy. Protibia with four teeth on lateral edge; internal basal angle unmodified; anterior surface lacking aligned row of setae internally, surface glossy or feebly microsculptured between punctures; posterior surface with some ill-defined irregular punctures externally to median carina, surface finely and irregularly microsculptured between punctures, with several unaligned and contiguous setal row along lateral teeth. Mesofemur unmodified on anterointernal edge apically. Mesotibia abruptly widening before apex in anterior view; anteroapical edge slightly sinuate in anterior view, anteroapical row of setae complete; apicoanterior edge angular, lacking distinct emargination internally; external edge more or less flat, bordered anteriorly and posteriorly by an almost complete setal row. Mesotarsus differently shaped than metatarsus, 2-segmented, first segment moderately elongate, approximately two times as long as wide at apex. Metafemur elongate, internal and lateral edges mostly parallel in ventral view, more than twice as long as wide, lacking distinct depressed area anterointernally before apex, apicoposterior edge unmodified, anterior surface with a well-defined sulcus on more than half the length. Metatibia abruptly widening before apex in anterior view, anterior surface completely covered with irregular sculpturing and punctures, metatibial posterior surface concave between internal and lateral edge, glossy between punctures. Metatarsus 2-segmented (Fig. 127), first segment extremely elongate, approximately 5 times as long as wide at apex, with anterointernal carina indistinguishable. Abdominal sternites. Sternites 3–6 longitudinally flat; sternites 4–6 with more than three unaligned row of setae laterally, narrowly glabrous medially; sternite 7 approximately longitudinally flat medially, as long as segment 5–6 combined along midline; pygidium finely punctate on disc. Male genitalia (Figs. 92–93). Parameres laterally concave before apex; surface smooth, glossy apically.
Measurements (27 males, 16 females). Length: male 12.5–17.0 (14.7±1.2), female 13.5–17.0 (15.6±0.9) mm.
Primary type data. Holotype male (CEMT): [BRASIL: MG/ Fazenda Pontinha / Cordisburgo, XII.1997 / F. Vaz-de-Mello]; [WORLD/ SCARAB./ DATABASE/ WSD00017159]; [HOLOTYPE / Dendropaemon / vazdemelloi n.sp. / Génier & Arnaud, 2014]
Material examined. BRAZIL: [unspecified locality], [no date], coll. [anonymous]— 1 female, 3 males (incl. 4 paratypes) (CPFA, IRSNB); BAHIA, Encruzilhada, (15°31'47''S, 40°54'43''W), xi.2012, coll. P. Wagner— 1 male (paratype) (CEMT); DISTRITO FEDERAL, IBAMA, (15°46'1''S, 47°51'34''W), 2.x.1997, coll. F.N. Gouveia— 1 male (paratype) (CEMT); Planaltina, Brasília, (15°37'S, 47°40'W), 19.xi.2012, coll. C.M. Oliveira— 1 female (paratype) (CEMT); MINAS GERAIS, Fazenda Pontinha, Cordisburgo, elev. 700 m (19°8'53''S, 44°12'1''W), i.1994, coll. F.Z. Vaz de Mello— 1 female, 5 males (incl. 6 paratypes) (BCRC, CEMT, CMNC, WDEC); same locality, xii.1997, coll. F.Z. Vaz de Mello— 6 females, 20 males (incl. holotype, 24 paratypes) (BDGC, CEMT, CMNC, MZLU, PMOC); same locality, i.1999, coll. Falqueto & Vaz de Mello— 4 females, 2 males (incl. 6 paratypes) (CEMT, CMNC); same locality, i.2004, coll. F. Vaz de Mello— 1 female, 2 males (incl. 3 paratypes) (CEMT); same locality, i.2000, coll. F. Z. Vaz de Mello— 1 female, 6 males (incl. 7 paratypes) (CEMT, CMNC); same locality, xii.1993, coll. F. Z. Vaz de Mello— 1 female (paratype) (CPFA); same locality, i.1999, coll. F. Vaz de Mello— 1 male (paratype) (PMOC); same locality, 3.ix.1996, coll. F. Vaz de Mello— 1 female, 2 males (incl. 3 paratypes) (BDGC); Montes Claros, (16°44'13''S, 43°51'53''W), 1904–1905, coll. Vincart— 1 female (paratype) (IRSNB); São Lourenço, (22°7'3''S, 45°3'6''W), 20.i.1979, coll. C. Junios— 1 female (paratype) (CPFA); SÃO PAULO, Ipiranga, (23°35'28''S, 46°36'32''W), xi.1962, coll. Martínez— 1 female (paratype) (CMNC).
Etymology. Vazdemelloi, a patronym in honor of Professor Fernando Z. Vaz de Mello. Fernando, in addition to being a friend and collaborator on various projects to both authors, is a leading Scarabaeologist in Brazil and has collected long series of this species at the Fazenda Pontinha in Minas Gerais.
Natural history. See Vaz-de-Mello & Génier 2009.
Remarks. Females differ by their lower clypeofrontal carina which is less strongly tuberculate medially and less concave frons, the anterior pronotal carina is more posteriorly arcuate laterally and the concavity much shallower. Variation is restricted to size.
description: Published as part of François Génier & Patrick Arnaud, 2016, Dendropaemon Perty, 1830: taxonomy, systematics and phylogeny of the morphologically most derived phanaeine genus (Coleoptera: Scarabaeidae, Scarabaeinae, Phanaeini) in Zootaxa 4099 (1) on pages 64-66, DOI: 10.11646/zootaxa.4099.1.1, http://zenodo.org/record/268274