Cyclocephala proxima Dechambre, 1997

Neita-Moreno, Jhon C., 2021, A review of the black species of Cyclocephala Dejean (Coleoptera: Scarabaeidae Dynastinae) from Colombia, Zootaxa 5026 (1), pp. 1-58 : 9-10

publication ID	https://doi.org/ 10.11646/zootaxa.5026.1.1
publication LSID	lsid:zoobank.org:pub:07E0C922-6B0F-4916-85C2-AD95146A8F1E
persistent identifier	https://treatment.plazi.org/id/03932D70-B62B-C37E-FF7B-0C91A3FDDD9B
treatment provided by	Plazi
scientific name	Cyclocephala proxima Dechambre, 1997
status

Treatment

( Figs. 1C–D View FIGURE 1 ; 7C–D View FIGURE 7 ; 8C–D View FIGURE 8 ; 12B View FIGURE 12 ; 13C–D View FIGURE 13 ; 15B View FIGURE 15 ; 16B View FIGURE 16 ; 17B View FIGURE 17 ; 18B–C View FIGURE 18 ; 19B View FIGURE 19 ; 20B View FIGURE 20 ; 21 B–D View FIGURE 21 ; 24B View FIGURE 24 ; 26C–D View FIGURE 26 ; 31B View FIGURE 31 ; 32D; 38)

Diagnosis. Cyclocephala proxima can be distinguished by the absence of a longitudinal keel on the inner edge of the metatibia ( Fig. 19B View FIGURE 19 ); sparse punctures on the metasternite (dense in C. rogerpauli ); the surface of the pygidium with dense punctures ( Fig. 24B View FIGURE 24 ); the median claw of the male with a basal tooth ( Fig. 16B View FIGURE 16 ); and the internal sac with 4 copulatory lamellae ( Fig. 31B View FIGURE 31 ).

Redescription. Male ( Fig. 1C View FIGURE 1 ). Length 23.3– 21.3 mm; width 10.3– 9.3 mm. Color black. Head: Frons moderately densely punctate, punctures mostly moderately large (rarely small). Clypeal surface similar to frons, apical half often with only a few, small punctures; apex convexly rounded, margined, usually with weak angle at center, weakly reflexed. Mandibles apically rounded, internal face with a groove ( Fig. 7C–D View FIGURE 7 ); labium densely setose, paraglossa undeveloped, apex slightly notched ( Fig. 12B View FIGURE 12 ); maxilla with galea developed, with 7 teeth; lacinia sclerotized and developed toward base of teeth ( Fig. 8C–D View FIGURE 8 ). Epipharynx ( Figs. 13C–D View FIGURE 13 ) ventrally with slender, short setae; dorsally, lateral margin with slender, long setae, surface covered with many setae. Interocular width equals 4.0 transverse eye diameters. Antenna with 10 antennomeres, club with a few long setae and slightly longer than antennomeres 2–7. Pronotum: Surface with punctures moderately dense, moderately large to large (especially on sides), ocellate, deep. Base lacking marginal bead. Elytra: Surface with punctate rows, punctures of striae and intervals similar to those of pronotum, entire surface often coarsely and transversely wrinkled obscuring rows of punctures. Pygidium: Surface usually densely punctate, punctures moderate in size to more usually moderately large, ocellate, setigerous; setae short, tawny, moderately dense ( Fig. 24B View FIGURE 24 ). In lateral view, surface in male evenly convex. Legs: Protibia tridentate, basal tooth slightly removed from others. Protarsus enlarged ( Fig. 1C View FIGURE 1 ), tarsomeres 2–4 successively gradually larger, fifth large, curved, with small angulation at base on ventral side ( Fig. 17B View FIGURE 17 ); median claw at base with small tooth, claw large, curved ( Fig. 16B View FIGURE 16 ), apex cleft ( Fig. 15B View FIGURE 15 ). Metatarsus subequal in length to metatibia. Venter: Prosternal process moderate in length, columnar, apex obliquely flattened into a transverse oval with anterior 2/3 to 4/5 raised into convex “button”. Genitalia: Parameres as in Figs. 26C–D View FIGURE 26 . Internal sac ( Fig. 31B View FIGURE 31 ) with 4 copulatory lamellae and speculum (with many short, spine-like setae).

Female ( Fig. 1D View FIGURE 1 ). Length 18.6–23.4 mm; width 9.4–10.8 mm. Similar to male. Abdominal ventrite VIII entire, not emarginate at center. Epileuron (ventral view, Fig. 20B View FIGURE 20 ) weakly enlarged at level of second abdominal sternite; in dorsal view, lateral margin slightly enlarged just before middle ( Fig. 20B View FIGURE 20 ); in lateral view, ventral margin of epipleuron without tooth or angulation ( Fig. 20B View FIGURE 20 ). Pygidium in lateral view weakly convex to nearly flat. Protarsus simple ( Fig. 1D View FIGURE 1 ). Gonocoxite larger than gonocoxal sternite, gonocoxite at center with a membranous area (Fig. 32D).

Distribution. Cyclocephala proxima is known from Colombia and Ecuador ( Dechambre 1997; Moore et al. 2018; Ratcliffe et al. 2020).

Locality records ( Fig. 38 View FIGURE 38 ). 19 specimens examined from IAvH and MUSENUV. “ Colombia, Chocó, Quibdó / Corregimiento de Tutunendó , Punto / Cara de Perro Hacienda Buenos / Aires-Tella. Bp-T Bosque / Entresacado , 05º45´06.4´´N; 76º26´/ 14.2´´W. WGS 84, 347 m. Trampa de / Luz UV, 16-26.i. 2019, J. C. Neita ” [2♀ - IAvH- E-216395, IAvH-E-216396]. “ Colombia, Chocó , Quibdó / Corregimiento de Tutunendó , Punto / Cara de Perro Hacienda Buenos / Aires-Tella. Bp-T Bosque / Entresacado , 05º45´06.4´´N; 76º26´/ 14.2´´W. WGS 84, 347 m. Trampa de / Luz UV, 16-26.i. 2019, J. C. Neita ” [4♀ - IAvH-E-216399, IAvH-E-216401, IAvH-E-216403, IAvH- E-216403 and 3♂ IAvH-E-216388, IAvH-E-216389, IAvH-E-216400]. “ Colombia, Chocó , Quibdó , Corrg. / Tutun- endo, Vda. Cara de Perro , / Camino a Cacerío , Comunidad Indigena de / Playa Alta Bp-T, Bosque / Entresacado 05º45´08.04´´N; 76º / 26´14.2´´W. WGS 84, 340 m. Trampa / de luz UV, 01-30.xi.2009. J. C. Neita ” [♂ -IAvH-E- 216397]. “ Colombia, Chocó , Quibdó , Corrg. / Tutunendó , Vda. Cara de Perro / Camino a cacerio com. indg. De / Playa Alta., Bp-T, Bosque / Entresacado , 05º45´76.09´´N; 76º / 26´16.8´´W. WGS 84, 340 m. Trampa / de Luz UV, 01-15.ii.2010. J. C. Neita ” [♂ -IAvH-E-216387]. “ Colombia, Chocó , Quibdó , Corrg. / Tutunendo , Vda. Cara de Perro , / Camino a Cacerío , Comunidad Indigena de / Playa Alta Bp-T, Bosque / Entresacado 05º45´06.04´´N; 76º / 26’ 14.2 W. WGS 84, 347 m. Trampa / de luz UV, 01-30.xi.2009. J. C. Neita ” [♀ -IAvH-E-216394]. “ Colombia, Chocó , Quibdó , Corrg. / Pacurita , pueblo, Bosque Pluvial / Tropical 05º4’N; 76 º40’W, 43m, / Trampa de Luz UV, 1.ii.2001. Neita, J.” [♂ -IAvH-E-216390 and 3♀ -IAvH-E-216391, IAvH-E-216392, IAvH-E-216393]. “ Colombia, Valle del Cauca / PNN Farallones de Cali / Anchicaya 3º26´N; 76 º48´W / 900 m. Malaise , 19.vi-3.vii.2001. S. Sarria Leg. M. 1891 / Cyclocephala proxima Dechambre. / Det. B. C. Ratcliffe, 2001” [♀ -IAvH-E-26229]. “ Colombia, Valle / Río Blanco / 1400 m. II-1970 / Dyscinetus laevipuctatus ” [ MUSENUV-4406 ]. “ Colombia, Chocó, Quibdó, / Corregiomiento de Pacurita , / Caserío, BpT. Bosque / entresacado, 05º41´01.61´´N 76º35´/ 45.40´´W. WGS84, 35 m. Trampa de / Luz UV, 15-21.i.2019. J. C. Neita, D. Zuñiga ” [♂ -IAvH-E-216398]. “ Colombia, Chocó, Nuquí, / Corrg. Tribuga. Campamento, Bosque húmedo tropical, / 5°45´47.1´´N; 77°12´00.6´´W. / WGS84, 30 m, Trampa de Luz UV, 8-12.Jul.2021. J. C. Neita; D. Murillo, L. Rengifo ” [1♂ -IAvH-E-219882, IAvH-E-219883] GoogleMaps .