Maechidius pedarioides Arrow, 1941

Telnov, Dmitry, 2020, A revision of the Maechidiini Burmeister, 1855 (Coleoptera: Scarabaeidae: Melolonthinae) from the Indo-Australian transition zone, and the first record of the tribe west of Wallace’s Line, European Journal of Taxonomy 721, pp. 1-210 : 95-96

publication ID	https://doi.org/ 10.5852/ejt.2020.721.1127
publication LSID	lsid:zoobank.org:pub:89E62EF8-2E45-4C59-94B7-6A5603E8939B
DOI	https://doi.org/10.5281/zenodo.4344449
persistent identifier	https://treatment.plazi.org/id/1A3787F6-9D42-9204-FDAF-FCE8CD652999
treatment provided by	Valdenar
scientific name	Maechidius pedarioides Arrow, 1941
status

Treatment

Maechidius pedarioides Arrow, 1941 View in CoL

Figs 72 View Figs 70–73 , 163–164 View Figs 157–168 , 244 View Figs 242–258 , 334 View Figs 333–348 , 407, 507–508, 556, 688–690

Type material

Syntypes

INDONESIA • ♂; “ SYNTYPE [p, label circular, blue frame] // Type [p, label circular, red frame] // ♂ [p] // N. DUTCH NEW GUINEA: Waigeu. Camp Nok. 2,500 ft. iv.1938. L.E.Cheesman. B.M.1938- 593. [p]// Maechidius pedarioides, Arrow type [h]”; BMNH • 1 ♂; “ SYNTYPE [p, label circular, blue frame] // N. DUTCH NEW GUINEA: Waigeu. Camp Nok. 2,500 ft. iv.1938. L.E.Cheesman. B.M.1938- 593. [p] // pedarioides ? var. [h]”; BMNH • 1 ♀; “ SYNTYPE [p, label circular, blue frame] // N. DUTCH NEW GUINEA: Waigeu. Camp Nok. 2,500 ft. iv.1938. L.E.Cheesman. B.M.1938-593. [p] // Maechidius pedarioides , co-type Arrow [h]”; BMNH • 1 ♀; “ SYNTYPE [p, label circular, blue frame] // ♀ [p] // N. DUTCH NEW GUINEA: Waigeu. Camp Nok. 2,500 ft. iv.1938. L.E.Cheesman. B.M.1938-593. [p]”; BMNH .

Description

Male labroclypeus ( Fig. 164 View Figs 157–168 ) broadly emarginate on anterior margin, female labroclypeus shallowly emarginate. Male anterolateral angles of labroclypeus rounded, strongly protruding, female one broadly obtuse, not protruding ( Fig. 164 View Figs 157–168 ). Lateral margin of labroclypeus sinuous in both dorsal and lateral views. Punctures of frons circular to ovoid, variably large, shallow, those on vertex annular. Long suberect seta rises from anterior margin of each puncture. Pronotum broadly emarginate on anterior margin, anterolateral angles protruding. Basal margin of pronotum broadly rounded. Lateral margin of pronotum in dorsal view broadly rounded, all along with large deep punctures splitting margin into indistinct long and flat crenulae ( Fig. 244 View Figs 242–258 ). Long erect seta present in each puncture between two crenulae. Hypomeron separated from prosternum by low arched carina, with long setae on anterolateral margin opposite to compound eye. Antennal pocket shallow. Pronotal punctures large, shallow, ovoid, those along lateral sides annular. Intervening spaces glossy, smaller to much smaller than punctures. Pronotal punctures in part with inner margin with delicate membrane covered with microscopical velvety pubescence. Pronotal setae minute, seta rises from anterior margin of each puncture, not surpassing its midlength. Elytral punctures circular to ovoid, in part annular, shallow, arranged in double longitudinal rows ( Fig. 334 View Figs 333–348 ). Intervening spaces glossy, generally larger than punctures. Elytral setae minute, surface looks glabrous under 50 × magnification; minute seta rises from anterior margin of each puncture, not surpassing midlength of corresponding puncture. Male pygidium flattened dorsally, with large shallow annular punctures. Intervening spaces variably large, generally smaller than punctures. Setae of pygidium sparse, long, suberect. Male and female protibia widened distally, with three distal teeth on external margin (Fig. 407). Male terminal spur of protibia short. Spiculum gastrale as in Fig. 556 View Figs 545–569 . Aedeagus as in Figs 688–690 View Figs 682–696 .