Cyclocephala dalensi Ponchel 2009
Creators: name: Neita-Moreno, Jhon C.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Dynastidae
Cyclocephala
Cyclocephala dalensi

description: Cyclocephala dalensi Ponchel, 2009   
(Figs. 3A; 15F; 16F 17F; 18H; 19D; 24F; 29C–D; 40)  
 Diagnosis. In C. dalensi, C. kaszabi, and C. ligyrina, the surface of the pygidium has dense punctures (rarely sparse) (Fig. 24F–H), but in C. rufa and C. arhuacana, the pygidium has sparse punctures (Fig. 25A–B). Cyclocephala dalensi and C. kaszabi have on the external face of the metatibia 2 rows of setae, the second row crosses the external face (Fig. 19D), whereas in C. ligyrina the second row does not cross the external face of the metatibia (Fig. 19F).   
 Redescription. Male (Fig. 3A). Length 20.0–23.0 mm; width 9.5–10.1 mm. Color dark reddish brown to black. Head: Surface of frons and clypeus with punctures moderately dense (rarely sparse), deep, moderately large except those on occiput and apex of clypeus that are smaller and slightly denser. Anterior clypeal angles broadly rounded, apex broadly truncate, weakly emarginate. Mandibles apically rounded, internal face with a groove; labium densely setose, paraglossa undeveloped, apex slightly notched; maxilla with galea developed, with 6 teeth. Interocular width equals 2.1 transverse eye diameters. Antenna with 10 antennomeres, club subequal in length to antennomeres 2–7. Pronotum: Surface with punctures as on frons. Base lacking marginal bead. Elytra: Surface with distinct rows of punctures, punctures (and those in intervals) ocellate, moderate to moderately large, moderately dense. Pygidium: Surface with dense punctures (rarely sparse), moderate in size, most with a minute, tawny seta in unworn specimens. In lateral view, surface regularly convex (Fig. 24F). Legs: Protibia tridentate, with basal tooth small and directed “forward” and slightly removed from other (Fig. 18H). Protarsus enlarged, tarsomeres 2–4 successively gradually larger; tarsomere 5 large, only weakly curved (Fig. 17F), with large tooth at base; median claw large, strongly curved (Fig. 16F), broadly split into a wide ramus and a slender ramus (Fig. 15F); metatibia on external face with 2 rows of setae, the second row crosses the external face of the metatibia (Fig. 19D). Genitalia: Parameres as in Fig. 29C–D.   
 Female. Unknown.   
 Distribution. Cyclocephala dalensi was previously known from the type locality in Antecume-Pata, French Guiana (Pochel 2009) and four other localities in the same country (Dupuis & Perrin 2020). The specimen listed below for Colombia constitutes a somewhat surprizing new country record.   
 Life history. Little is known about the species natural history, but adults are associated with inflorescences of Philodendron gloriosum André (Araceae).   
 Locality records (Fig. 40). One specimen examined from IAvH. “ Colombia, Cundinamarca, Medina, / Vda. Periquito, Finca La / Esperanza, Orilla del Río Gazamumo, en Inflorescencia de/ Philodendron gloriosum (Araceae), / 04º30´43.5´´N; / 73º25´12.9´´W. WGS 84, 648 m. Manual / 18.iii.2018. J. C. Neita ” [♂ IavH-E-216384].
description: Published as part of Neita-Moreno, Jhon C., 2021, A review of the black species of Cyclocephala Dejean (Coleoptera: Scarabaeidae Dynastinae) from Colombia, pp. 1-58 in Zootaxa 5026 (1) on page 37, DOI: 10.11646/zootaxa.5026.1.1, http://zenodo.org/record/10100344