Ogyges mutenroshii Cano, 2014

Cano, Enio B., 2014, Ogyges Kaup, a flightless genus of Passalidae (Coleoptera) from Mesoamerica: nine new species, a key to identify species, and a novel character to support its monophyly, Zootaxa 3889 (4), pp. 451-484 : 469-471

Ogyges mutenroshii Cano , new species

Figs. 13–14 , 21r

Diagnosis. Ogyges mutenroshii is most similar to O. nahuali , O. cavei , and O. toriyamai new species, by the small dorsal punctures on elytra and strong punctures on metasternum. Is easily distinguished by the brilliant elytra, the very wide protibia, the form of central horn, the absence of postorbital pits, and the greater reduction in the eye.

Description. Holotype, sex unknown, black adult. Total length 34.56, elytral length 18.44, pronotal length 9.24, pronotal width 12.05, humeral width 10.95. Head: anterior border of labrum slightly concave. Clypeus inclined (45 o); anterior border straight and thin, with very small, central invagination, without suture separating it from the mediofrontal area (except an indication of slightly rugose area that runs between mediofrontal tubercles). Mediofrontal tubercles rounded and well defined. Mediofrontal area smooth, without internal tubercles and posterofrontal ridges. Laterofrontal areas roughened. Lateropostfrontal areas wide, glabrous and roughened at sides. Central horn long and very narrow, apical 1/3 declivous in lateral view, dorsally excavated on both sides up to the level of the lateroposterior tubercles, with apex free and slightly directed upward, without median longitudinal groove posteriorly; lateroposterior tubercles somewhat elongate, separated from the posterior keel of the central horn. Postfrontal groove laterally deep. Supraorbital ridge with equal anterior tubercles; posterior 1/2 bifurcate with the supraorbital fossae very deep; external ridge well marked. Ocular canthus with apex swollen, dorsally covering more than 2/3 of eye. Eyes reduced. Eye width = 0.38 mm. Interocular width = 6.92 mm. Head width = 8.46 mm; ratio both eye widths/head width = 0.09. Postorbital pits, immediately behind the external ridge, punctate setose. Ligula almost flat basally, with eroded (also in the paratype) central tooth, with setaceous punctures medially; anterior ventral transversal carina clearly present. Lateral lobes of mentum with abundant setose punctures; lateral basal scars oval, opaque (shagreened), and punctate setose; medial basal mentum bare and shiny, with one-three punctures on each side. Hypostomal process elongate, without lateral depression, wide medially and narrow in apical third. Infraocular ridge present, short and smooth, surrounded by striate, setose punctures. Mandible with dorsal tooth occuppying 1/2 of the length; internal face of mandible in dorsal view, smooth. Antepenultimate antennomere of antennal club slightly longer (or subequal) than penultimate, less wide than the penultimate; antennal lamellae slightly concave dorsally ( Figs. 13–14 ), 1.69 mm wide and 1.92 mm long.

Thorax: Lateral fossae of pronotum only with sparse and very shallow micropunctures, visible at great magnification. Pronotum with marginal groove narrow and smooth, laterally with scattered micropunctures of rugose aspect (striate), visible at great magnification, more abundant in front of lateral fossae; anterior angles rounded; disc smooth. Prosternellum brilliant at center, shagreened at anterior 2/5 and posterior (except on sides) 1/ 5. Mesosternum glabrous; lateral depressions elongate and rugose (shagreened). Mesepisternum with oval, elongate, shagreened area. Metasternum anterior angles glabrous; disc delimited by 38 and 40 well-marked punctures (some striate) on each side; marginal groove glabrous, narrow and sligthly striate, posteriorly two times wider than medially.

Elytra: Brilliant; striations well marked and with weakly defined punctures between striae 1–3, gradually wider between striae 4–10 and apical 1/3; junctions of striations 1 and 10 with some extra punctures. Vertical anterior border of elytra with sparse, minute setae on interstriae 2–6.

Legs: Protibia very wide. Profemur with anterioventral groove marked; metafemur elongate; mesotibia with one spine.

Abdomen: Marginal groove of sternite VII incomplete, occupies 3/5 of sternite.

Variation in paratype: Total length 33.19, elytral length 17.74, pronotal length 8.83, pronotal width 11.52, humeral width 10.18. Disc of metasternum delimited by 31 and 45 well-marked punctures (some striate) on each side.

Material examined. 2 specimens.

Type material. Holotype: HONDURAS: Cortés, Parque Nacional Cusuco , 2nd. broadleaved forest. Nr. UTM 16P 369210 1713408. Ca. 1656 m alt., 07–11 VIII 2007. Coll. S. Beynon. Paratype: One specimen, unknown sex, same data as holotype except: UTM 16P 369795 1714017. Alt. aprox. 1550 m. 16–20 VII 2006. Dung baited pitfall trap. Coll. E. Marabuto.

Holotype and paratype deposited at UVGC .

Etymology. Named after Muten Roshi (Master Roshi), a principal character of the Akira Toriyama´s series of manga and anime, “Dragon Ball”.

Distribution. This species is known from the middle altitude cloud forest of the Cerro Azul Meambar National Park, in Comayagua Department, Honduras ( Fig. 4 ).

Figures

FIGURE 4. Map of northern Central America showing the locality of the new species. Light blue square, Ogyges menchuae; rose circle, O. handali; blue rhombus, O. cavei; yellow triangle, O. llama, O. mutenroshii; purple cross, O. toriyamai; red star, O. laurae, O. ratcliffei, and light green circle, O. sandinoi.

FIGURE 13. Holotype of Ogyges mutenroshii: a. lateral view. b. dorsal view. c. ventral view. d. detail of mentum. e. anterolateral view of head.

FIGURE 14. Dorsal aspect of head of Ogyges mutenroshii.

FIGURE 21. Details of suprainternal teeth of right mandibles (left in O. cavei) of the 25 known species of Ogyges: a. O. adamsi. b. O. aluxi. c. O. cakchiqueli. d. O. cavei. e. O. championi. f. O. coxchicopi. g. O. crassulus. h. O. furcillatus. i. O. handali. j. O. hondurensis. k. O. kekchii. l. O. laevissimus. m. O. laurae. n. O. llama. o. O. marilucasae. p. O. menchuae. q. O. monzoni. r. O. mutenroshii. s. O. nahuali. t. O. politus. u. O. quichensis. v. O. ratcliffei. w. O. sandinoi. x. O. toriyamai. y. O. tzutuhili.