Manodactylus paramicola, Clavijo-Bustos & Castro-Vargas & Neita Moreno, 2024

Clavijo-Bustos, Julián, Castro-Vargas, María I. & Neita Moreno, Jhon César, 2024, A second species of the genus Manodactylus Moser, 1919 (Coleoptera, Scarabaeidae, Melolonthinae, Macrodactylini) from the highlands of Colombia, Deutsche Entomologische Zeitschrift 71 (1), pp. 209-217 : 209-217

Manodactylus paramicola sp. nov.

Figs 2 , 3 , 4 , 5 C, D

Type material.

Holotype male ( IAvH-E) labeled: “ Pasto (Nar.) / 29-X-58 ” [white printed label, second line handwritten] // “ B. Yanguatin / Suelo paramo / Alt. 3500 mts ” [white handwritten label] // “ Holotypus ♂ / Manodactylus paramicola n. sp. / Clavijo-Bustos, Castro-Vargas & Neita Moreno, / 2024 ” [red printed label] // “ Instituto Humboldt / Colombia / IAvH-E -266051 ” [white printed label with QR code] . Paratypes: 2 males ( CEUN) labeled like the holotype, except by: “ Paratypus ♂ / … ” [yellow printed label]; 1 male ( CMNC) labeled: “ Colombia, Cauca, San Sebastian, / Valencia , 1 ° 54 ’ 0.15 " N, 76 ° 40 ’ 12.29 " W, WGS 84, 2950 m, Cap. manual, / 2018-09 - 07, D. E. Martínez-Revelo ” [white printed label] // “ Cauca Valencia / 7 - sep- 18 ” [white handwritten label], and the same yellow paratype label .

Description.

Male. Total length: 7.9–9.5 mm (holotype: 9.3 mm), maximum width of pronotum: 3.0– 3.6 mm (holotype: 3.5 mm), width at the base of pronotum: 2.0– 2.5 mm (holotype: 2.4 mm), width at the base of elytra: 2.8–3.3 mm (holotype: 3.3 mm). Color black, shiny, with rounded micropunctures when viewed under high magnification; antennae with antennomeres 1–6 dark brown and antennomeres 7–9 (antennal club) black; apex of femora, and tibiae and tarsi, dark brown. Body elongate and slender, subparallel. Head: Clypeus trapezoidal, anterior border emarginate medially, borders on each side of medial emargination narrowly rounded, slightly angulated and upturned; clypeus and frons forming a subpentagonal concave area, surface with small, coarse, rounded punctures densely and irregularly distributed, separated by less than one time one puncture diameter, giving a rugose appearance, and each puncture bearing a short, slender pale-yellow seta; frons with a smooth raised narrow area extending from anterior angles to the vertex, and delimiting the subpentagonal concave area. Fronto-clypeal suture not well-marked. Vertex smooth medially, laterally with punctures similar to those of the surface of clypeus and frons. Eyes small, interocular distance equal to 6.2 times the dorsal width of the eye. Ocular canthus very short and narrow, dorsally covered with small, coarse, rounded punctures densely and irregularly distributed, each bearing a moderately long, thick reddish-yellow seta. Antennae with nine antennomeres, antennal club equal to the combined length of antennomeres 2–6. Mouthparts: Mandibles triangular, sclerotized, molar lobes slightly asymmetric; long setae present in the apical half of outer edge and in the inner edge, in a membranous lobe apically setose; surface of molar lobes with ridges. Maxillae with the cardo projected horizontally; maxillary palps with four palpomeres; lacinia apically membranous, with a tuft of setae; galea with eight teeth and covered of setae apically. Labium with mentum oblong, longer than wide, slightly narrowing anteriorly, anterior edge truncate, ventral surface with large, thick setae; prementum with two labial palps, each with three palpomeres. Labrum with the anterior edge of distal epipharynx slightly emarginate medially; chaetopariae with several rows of long setae, laeotorma and dexiotorma long. Pronotum: Pronotal disc convex, diamond shaped, strongly wider medially, and wider than long. Surface medially with few small, rounded punctures sparsely and irregularly distributed, separated by 3–5 times one puncture diameter, each puncture bearing a short, slender pale-yellow seta. Borders margined, with an irregular row of small, rounded punctures; the row has less punctures over the anterior and posterior borders than over the anterior angles; each puncture on anterior and posterior borders bearing a short, slender pale-yellow seta, otherwise, each puncture bearing a moderately long, thick reddish-yellow seta, and over the anterior angles with few punctures bearing a long, thick reddish-yellow seta. Anterior angles acute, posterior angles rounded. Scutellum: Scutellar shield slightly longer than wide; surface laterally with few small, rounded punctures sparsely and irregularly distributed, separated by one to less than one times one puncture diameter, each puncture bearing a short, slender pale-yellow seta. Limit between scutellar shield and mesoscutum not evident. Hind wings: Fully developed. Elytra: Elytral base wider than pronotal base. Humeral and apical calluses slightly prominent, rounded. Each elytron with five striae between suture and humeral callus, 10 in total, but lateral striae less evident; striae disappearing over the apical declivity; each stria deep, with a regular row of small, rounded punctures distanced by 3–5 times one puncture diameter. Interstriae strongly convex. Surface of interstriae, humeral and apical calluses with scattered, small, rounded punctures. Some punctures in the surface, including some in the striae, bearing a short, slender pale-yellow setae. Hypomeron: Hypomeral disc convex. Surface anteriorly smooth, otherwise covered with small, rounded punctures sparsely and irregularly distributed, separated by 5–8 times one puncture diameter; each puncture bearing a moderately long, pale-yellow seta. Prosternum: Disc with two anterior, longitudinal sulci. Mesoventrite: Disc flat in the middle. Surface with few small, rounded punctures separated by 1–2 times one puncture diameter, each puncture bearing a short, slender pale-yellow seta. Mesepimerum and metepisternum: Surfaces with scattered small, rounded punctures, each puncture bearing a short, slender pale-yellow seta. Metaventrite: Disc flat and densely setose in the central area. Surface of central area covered with small, rounded punctures densely and irregularly distributed, separated by less than one time one puncture diameter, each bearing a moderately long, slender pale-yellow seta. Surface of lateral arms similar to that of central area, but with evidently sparser punctures, thus less setose, and smooth externally. Hind wings: Apical edge rounded; RP 3 y RA 4 + RP 1 apically parallel; MSP projected toward the wing margin; MP 3 + 4 short, not projected apically. Legs: Femora subequal in length to their respective tibiae; surface almost completely smooth, with scattered small, rounded punctures, each bearing a short, slender pale-yellow seta; anterior and posterior border moderately setose in the basal third. Tibiae shorter than their respective tarsi. Tarsal claws bifid, ventral part slightly thicker, shorter, and more downward curved than dorsal part; each claw over the basal third with an acute triangular tooth. Protibia along the outer edge with two teeth distributed in the apical third, apical tooth larger than basal; inner angle slightly projected downward; protibia gradually widening from base to apex but narrowing from the inner edge in the apical third; surface smooth except for a few scattered punctures and a regular row of small, rounded punctures separated by 2–4 times one puncture diameter, each puncture bearing a short, slender pale-yellow seta; anterior and posterior borders with scattered moderately long, slender pale-yellow setae; lacking apical spur. Protarsomere 1 subequal to the combined length of protarsomeres 2–3, protarsomere 2–4 subequal in length, and protarsomere 5 subequal to the combined length of protarsomeres 3–4; internal face of protarsomeres with few scattered short to moderately long, thick reddish-yellow seta. Mesotibiae with a more or less evident ventral transverse carina near the apical third of its length; surface with few small, rounded punctures sparsely distributed, each bearing a short or moderately long, thick reddish-yellow seta; apex over the ventral surface with intercalate extremely short and short, thick reddish-yellow spinules; two subequal apical spurs present, the dorsal spur slightly longer than the ventral, both about three quarters of the length of the mesotarsomere 1. Mesotarsomere 1 slightly longer than mesotarsomere 2, mesotarsomere 2 slightly longer than mesotarsomere 3, mesotarsomeres 3 and 4 subequal in length, and mesotarsomere 5 slightly shorter than the combined length of the mesotarsomere 3–4; internal face of mesotarsomeres with a few scattered short to moderately long, thick reddish-yellow seta. Metatibiae surface with a few small, rounded punctures sparsely distributed, each bearing a short or moderately long, thick reddish-yellow seta; apex over the ventral surface with intercalate extremely short and short, thick reddish-yellow spinules; one apical spur present, about a half of the length of the metatarsomere 1. Metatarsomere 1 slightly longer than metatarsomere 2, metatarsomere 2 slightly longer than metatarsomere 3, metatarsomeres 3 slightly longer than metatarsomere 4, and metatarsomere 5 slightly shorter than the combined length of the metatarsomere 3–4; internal face of metatarsomeres with few scattered short or moderately long, thick reddish-yellow seta (thicker than the slender setae mentioned, but not as spine-like setae). Abdomen: Abdominal ventrites 2–5 densely setose medially, surface covered with small, rounded punctures densely and irregularly distributed, separated by less than 1 times one puncture diameter, each bearing a moderately long, slender pale-yellow seta, some few bearing longer setae; surface laterally similar, but with evidently sparser punctures, thus sparsely setose; anterior border of each of these ventrites densely setose. Ventrite 5 longer than the others. Ventrite 6 almost smooth, with few small, rounded punctures bearing a long, slender pale-yellow seta; anterior border with moderately long, thick reddish-yellow setae. Pygidium vertical, strongly convex; surface with few small, rounded punctures sparsely and irregularly distributed, separated by 2–5 times one puncture diameter, each bearing a short, slender pale-yellow seta; setae convergent over the longitudinal central area, and punctures sparser externally. Genitalia: Hemisternite 9 covered with small, rounded punctures densely and irregularly distributed, separated by one time one puncture diameter; anterior edge truncate and slightly emarginate medially. Spiculum lateral arms short, the spiculum gastrale around two times the length of a spiculum lateral arm, and the cranial part with apex rounded. Phallobase cylindrical, 2.5 times the length of parameres. Parameres fused at the base, short, apically curved and slightly downward, with the apex rounded; the inner edge of each paramere sinuous, with an evident, strong indentation in the basal third.

Female. Unknown.

Diagnosis.

Manodactylus paramicola shares with M. gaujoni the overall appearance (see Diagnosis for M. gaujoni ). Manodactylus paramicola can be distinguished from M. gaujoni by having the femora, tibiae, and tarsi very dark brown; clypeus emarginate medially, with borders on each side of medial emargination narrowly rounded, slightly angulated and upturned; the subpentagonal area formed by clypeus and frons concave; the pronotum also with small, rounded, setigerous punctures on the borders but few also present medially in the disc, separated by 3–5 times one puncture diameter; each elytral stria deep, with a regular row of small, rounded punctures distanced by 3–5 times one puncture diameter; and interstriae strongly convex.

Etymology.

Epithet compound, from the Spanish noun Páramo for Paramo ecosystem, and the Latin suffix – icola meaning inhabitant. The specific name means ‘ inhabitant of Paramo’, in allusion to the ecosystem where the specimens were collected.

Distribution.

Colombia, departments of Cauca and Nariño (Fig. 6 ). Three of the specimens were collected in Pasto, department of Nariño, with the information ‘ Paramo ground’ (Suelo paramo) on the label, referring to the ecosystem in which the specimens were found. The fourth specimen was collected in San Sebastián, a small, populated place located less than 10 kilometers from the Páramo de las Papas in the department of Cauca.

Figures

Figure 2. Manodactylus paramicola sp. nov., male holotype. A. Dorsal view; B. Lateral view; C. Ventral view; D. Aedeagus in lateral view; E. Parameres in dorsal view; F. Parameres in frontal view; G. Spiculum gastrale in dorsal view.

Figure 3. Manodactylus paramicola sp. nov., male paratype. A. Hind wing in dorsal view; B. Epipharynx in ventral view; C. Left maxilla in ventral view; D. Left maxilla in dorsal view; E. Labium in ventral view; F. Left mandible in dorsal view; G. Left mandible in lateral internal view; H. Left mandible in ventral view.

Figure 4. Manodactylus paramicola sp. nov., male holotype. A. Protibia in dorsal view; B. Detail of the downward projection of the inner angle of protibia; C. Apex of protibia; D. Apex of mesotibia; E, Apex of metatibia. Black arrows point to downward projection of the inner angle of protibia.

Figure 5. Manodactylus species. A, B. Macrodactylus gaujoni Ohaus, 1909, male neotype = Manodactylus gaujoni Moser, 1919, male lectotype; C, D. Manodactylus paramicola sp. nov., male holotype. A, C. Pronotum in dorsal view; B, D. Head in dorsal view.

Figure 6. Distribution map of Manodactylus. Macrodactylus gaujoni Ohaus, 1909, male neotype = Manodactylus gaujoni Moser, 1919, male lectotype. A star is used for approximate holotype locality when possible; ‘? ’ to denote unverified records; red color is used for Manodactylus gaujoni Moser, 1919; orange color is used for Macrodactylus gaujoni Ohaus, 1909; yellow color is used for Manodactylus paramicola sp. nov.