Dendropaemon (Coprophanaeoides) furtadoi Génier & Arnaud, 2016

François Génier & Patrick Arnaud, 2016, Dendropaemon Perty, 1830: taxonomy, systematics and phylogeny of the morphologically most derived phanaeine genus (Coleoptera: Scarabaeidae, Scarabaeinae, Phanaeini), Zootaxa 4099 (1) : 14-15

5. Dendropaemon (Coprophanaeoides) furtadoi Génier & Arnaud , new species

( Figs. 5 , 48–49, 156)

Type locality. Diamantino, Mato Grosso, Brasil.

Diagnosis. Differs from nearly all other species in the genus by its long elytral pilosity combined with the sharply carinate lateral edge of the pronotal lateral depressions. The much less pilose dorsum, especially the nearly glabrous eighth elytral interval will separate D. furtadoi from D. pilosissimus and the much less heavily punctate pronotal disc will separate it from D. carinifer . From its sister species, D. cribrosus , the straight clypeal edge on each side of the clypeal teeth combined with the distinctly anteriorly convergent pronotal lateral edges and less defined elytral striae will set it apart.

Description. Male holotype ( Fig. 5 ). Body. Body large, length 15.0 mm, maximum width 8.0 mm; body subrectangular in dorsal view; dorsum narrowly flat. Color. Dorsal surface dark brown to black, glossy, with green metallic sheen; head black along anterior edge of clypeus, metallic green on remaining surface; pronotum with green metallic sheen except for anteromedian carina, on anterior portion of disc and surface adjacent to lateral fossae; elytra with uniform green metallic sheen; ventrum with faint greenish and coppery metallic sheen; pygidium with green metallic sheen; legs with coppery and greenish metallic sheen on femora and tibiae. Head. Clypeus gena arcuate, clypeus straight between clypeogenal junction and lateral emargination of clypeal teeth, anterior portion upturned; clypeal teeth acutely triangular; clypeal median emargination v-shaped, clypeal edge acutely notched on external side of each clypeal tooth, clypeal teeth ventral surface lacking carina, clypeal margin ill-defined, lacking sharp carina posteriorly, clypeal surface with transverse blunt rugulae anteriorly and small setiferous tubercles posteriorly; clypeogenal suture well-defined, bluntly carinate internally; genal surface with small setiferous tubercles, lacking distinct transverse carina, simply convex; clypeofrontal carina rather low, approximately 4 times wider than high, straight in dorsal view, simply carinate, clypeofrontal carina apical edge slightly trilobate in frontal view; eyes large in dorsal view, interocular ratio 4.0. Pronotum. Pronotum transverse in dorsal view, pronotal width/length ratio 1.6; disc of pronotum minutely punctate basally with large confluent setiferous puncture medially changing into dense squamose and setiferous rugulae anteriorly, with an ill-defined shallow longitudinal depression on posterior half; pronotal anterior margin only slightly wider and flat lateral to eye; anterior portion with a tri-sinuous carina, carina produced into a tubercle medially; anterior angles surface finely granulate, similar to lateral margin along posterior edge of anterior margin; lateral fossae oval, bordered laterally by a sharp carina and anteriorly by a blunt tubercle; lateral portions strongly explanate; pronotal basal fossae ill-defined, slightly concave; posterior margin well-defined and crenulate, with several long setae. Elytra. Elytra approximately as long as wide in dorsal view, elytral combined width/length ratio 1.2; elytral base distinctly marginate; elytral striae 1–4 moderately wide basally, narrower and ill-defined on posterior half, evenly impressed throughout, elytral striae 5 similar to 4 on disc, strial punctures fine, well-defined and setiferous, adjacent strial edge feebly encroaching on interval, stria 1 weakly impressed apically, going straight to elytral apical margin; interstriae slightly convex, minutely punctate and with few larger setiferous punctures along striae, surface glossy. Thoracic sterna. Proepisternal carina absent; metasternal median lobe angularly produced anteromedially, ventral ridge well-defined, y-shaped. Legs. Profemur posterior surface slightly but distinctly convex and glabrous internally, posterointernal margin rather thin, uneven, internal edge rather wide, with a contiguous row of setae along anterointernal edge and few scattered long setae on anterior half, remaining surface with irregular ill-defined punctures and glossy. Protibia with four teeth on lateral edge; internal basal angle lobate; anterior surface with long 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 glossy between punctures, with a single interrupted setal row along lateral teeth. Mesofemur angularly produced on anterointernal edge apically. Mesotibia rather short, gradually widening toward apex in anterior view; anteroapical edge slightly sinuate in anterior view, anteroapical row of setae complete; apicoanterior edge circularly indented internally; external edge more or less rounded, with several large elongate setiferous punctures. Mesotarsus similar in shape to metatarsus, 3-segmented, first segment moderately elongate, approximately two times as long as wide at apex. Metafemur internal edge nearly straight and lateral edge arcuate, lacking distinct depressed area anterointernally before apex, apicoposterior edge unmodified, anterior surface with a well-defined sulcus on more than half the length. Metatibia moderately slender, slightly widening toward apex in anterior view, anterior surface with distinct row of setae, surface glossy, metatibial posterior surface flat between longitudinal row of setae and lateral edge, with ill-defined microsculpture. Metatarsus 3-segmented, first segment moderately elongate, approximately two times as long as wide at apex, with anterointernal carina well defined and almost reaching apical edge. Abdominal sternites. Sternites 3–6 longitudinally flat; sternites 4–6 with 1–3 unaligned rows of setae laterally, narrowly glabrous on segment 4 and with a single row of setae medially on segments 5–6; sternite 7 approximately longitudinally flat medially, shorter than segment 6 along midline; pygidium minutely punctate on disc. Male genitalia (Figs. 48–49). Parameres simply rounded apically in dorsal view; surface smooth, glossy apically.

Measurements (1 male). Length: 15.0 mm.

Primary type data. Holotype male (CEMT): [ BRASIL: MT/ Diamantino/ X.1984 / E. Furtado]; [WORLD/ SCARAB./ DATABASE/ WSD00016761]; [HOLOTYPE / Dendropaemon / furtadoi n.sp. / Génier & Arnaud, 2014].

Material examined. Primary type only.

Etymology. Furtadoi , a patronym in honor of Eurides Furtado of Diamantino (Mato Grosso) who was very hospitable during a visit of one of the author (FG) and also the collector of the only known specimen of this species.

Natural history. Unknown.

Remarks. Female and variation unknown.

In addition to the characters mentioned in the diagnosis, this species also differs in having the lateral pronotal fossae bordered anteriorly by a much larger tubercles and the posterior pronotal margin is twice as wide in posterior view as in D. cribrosus . Because a single male specimen of this species is known it is difficult to assess if this is due to the allometric scaling.

Figures

FIGURES 1 – 6. Dorsal habitus. 1. D. bluti, male holotype; 2. D. carinifer, male holotype; 3. D. compressipennis, male holotype; 4. D. cribrosus, male holotype; 5. D. furtadoi, male holotype; 6. D. hirticollis, female holotype.