Maechidius angusticeps Arrow, 1941
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.4344431 |
persistent identifier |
https://treatment.plazi.org/id/1A3787F6-9D08-924E-FDA8-F971C9FD2C03 |
treatment provided by |
Valdenar |
scientific name |
Maechidius angusticeps Arrow, 1941 |
status |
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Maechidius angusticeps Arrow, 1941 View in CoL
Figs 22 View Figs 22–24 , 100 View Figs 97–108 , 200 View Figs 193–207 , 289 View Figs 286–301 , 362, 455, 576–578
Type material
Holotype
INDONESIA • ♂; “ Type [p, label circular, red frame] // DUTCH NEW GUINEA: Humboldt Bay Dist. Bewani Mts. 400 meters. Vii.1937 [p] // W.Süber. B.M.1938-177. [p]// Maechidius angusticeps Arrow type [h]”; BMNH.
Description
Dorsum and venter uniformly black-brown, labroclypeus castaneous brown. Male labroclypeus broadly emarginate, anterolateral angles obtuse angulate, protruding anteriad ( Fig. 100 View Figs 97–108 ), its lateral margins strongly sinuous in lateral view. Punctures of frons ovoid, deep. Setae inconspicuous, scale-like, narrow and short (not or hardly surpassing length of corresponding punctures), each seta rises from anterior margin of corresponding puncture. Lateral margin of pronotum broadly rounded, shallowly emarginate prebasally, delicately crenulate all along ( Fig. 200 View Figs 193–207 ). Appressed scale-like clavate seta present between every two crenulae. Lateral margin of pronotum sinuous in lateral view. Hypomeron sinuous, long setose opposite to compound eye, flange-like. Antennal pocket deep. Punctures larger and deeper than those on head. Intervening spaces glossy, narrow, wrinkled. All setae much shorter than corresponding punctures, each seta rises from anterior margin of corresponding puncture. Basal margin laterally with fringe of longer clavate scale-like setae. Lateral margins, antero- and posterolateral angles completely covered with microscopical velvety pubescence. Punctures of elytra ovoid, irregular in size, less deep than those on forebody ( Fig. 289 View Figs 286–301 ). Elytral setae generally very short (only few setae are as long as corresponding punctures), each seta rises from anterior margin of corresponding puncture. Most of punctures partly or completely encircled by delicate and extremely short velvety pubescence, composing circular to subcircular patterns around perimeter of punctures. Male pygidium slightly convex dorsally, with dense ovoid deep punctures and suberect scale-like clavate setae not or hardly surpassing length of corresponding punctures ( Fig. 455 View Figs 451–468 ). Male protibia with flat dorsal carina and two distal teeth on external margin (Fig. 362). Male upper metatibial terminal spur longer than half length of male basal metatarsomere, surpassing distal margin of metatibia in dorsal view. Male aedeagus as in Figs 576–578 View Figs 570–585 .
Sexual dimorphism
Female is unknown.
BMNH |
United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)] |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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