Madecorphnus dentatus Frolov, 2010

Frolov, Andrey V., Montreuil, Olivier & Akhmetova, Lilia A., 2016, Review of the Madagascan Orphninae (Coleoptera: Scarabaeidae) with a revision of the genus Triodontus Westwood, Zootaxa 4207 (1), pp. 1-93 : 35-38

publication ID

https://doi.org/ 10.11646/zootaxa.4207.1.1

publication LSID

lsid:zoobank.org:pub:F2875582-31E2-496F-AEEF-1D657DD86C33

DOI

https://doi.org/10.5281/zenodo.6057656

persistent identifier

https://treatment.plazi.org/id/5B4FBD00-FFF3-614F-FF02-6529FE9AFB55

treatment provided by

Plazi

scientific name

Madecorphnus dentatus Frolov, 2010
status

 

Madecorphnus dentatus Frolov, 2010

( Figs. 17 View FIGURE 17 A–F)

Madecorphnus dentatus Frolov, 2010c: 1105 .

Type material examined. Holotype ( Figs. 17 View FIGURE 17 A–E), male, “ Chaînes Anosyennes, S.O. du Trafonaomby plateau Andohahelo 1770–1950 m, V-1972 / MUSEUM PARIS Madagascar Est mission C.N.R. S. R. C.P. n°225 / Holotypus Madec. dentatus Frolov 2009 ” ( MNHN) .

Paratypes: two specimens, female with the same data as the holotype and male, “ Madagascar Est: N.- O. de Fort-Dauphin, massif de l'Andohahelo, forêt d'Andranomangara, R.N.I. n 11, 1750 m, 20/ 25-I-1974 A. Peyrieras ” ( MNHN) .

Diagnosis. This species can be separated from other Madecorphnus species by the distinct shape of the parameres and internal sac armature.

Description. Male. Body length 6.0 mm. Color reddish brown, head, legs, and apices of elytra somewhat darker.

Right mandible slightly longer than left, without tooth behind of apex. Labrum trapezoidal, length about 1/4–1/ 5 width (in dorsal view).

Frontoclypeus asymmetrical, slightly convex anteriorly, obtuse, with 2 long and a number of smaller setae. Canthus and frontal suture indistinct. Frontoclypeus somewhat depressed in the middle anteriorly, sparsely punctate.

Pronotum 1.8 times wider than long, widest medially. Margins with relatively wide border, lateral margins with 4 long setae. Pronotum evenly convex, punctate (punctures separated by 2–3 puncture diameters).

Elytra convex, with distinct humeral and apical tubercules. Maximum width approximately at basal 1/3. First stria distinct and reaching the apex of elytron, other striae indistinct. Disc of elytra with sparse punctures. Epipleura with long, sparse, brown setae. Base of elytra with border from scutellum to humeral callus. Elytra minutely punctate except for a few relatively large punctures in the middle of each elytron near stria 1.

Protibiae with 3 outer teeth, lateral margin basad of outer teeth not crenulate. Apex with robust, spur-like seta and a few smaller setae basally. Mesothoracic and metathoracic legs similar in shape. Longer tibial spur as long as 2 basal tarsomeres in mesothoracic legs and as long as 3 basal tarsomeres in metathoracic legs.

Aedeagus. Parameres symmetrical, tapering apically in lateral view, with large teeth laterally ( Fig. 17 View FIGURE 17 B). Internal sac of aedeagus with 1 sclerite composed of 2 long slender spinules connected basally and with 3 small spinules ( Fig. 17 View FIGURE 17 D–E).

Female. Except for shorter mandibles, females differ from males in having 2 setae on hind angles of pronotum and in robust protibial spur.

Variation. Male paratype has shorter mandibles similar to those in female.

Distribution and habitat. Madecorphnus dentatus is known from two localities in southeastern Madagascar ( Fig. 17 View FIGURE 17 F).

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Coleoptera

Family

Orphnidae

Genus

Madecorphnus

Loc

Madecorphnus dentatus Frolov, 2010

Frolov, Andrey V., Montreuil, Olivier & Akhmetova, Lilia A. 2016
2016
Loc

Madecorphnus dentatus

Frolov 2010: 1105
2010
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