Ptomaphaginus caroli, Schilthuizen & Perreau, 2008

Schilthuizen, Menno & Perreau, Michel, 2008, New species and new records of Ptomaphaginus Portevin from the Sunda region, Southeast Asia (Coleoptera: Leiodidae: Cholevinae), Zool. Med. Leiden 82 (19), pp. 189-210 : 193

publication ID	https://doi.org/ 10.5281/zenodo.3576287
DOI	https://doi.org/10.5281/zenodo.6231984
persistent identifier	https://treatment.plazi.org/id/F97A87E2-7404-E664-6688-FEC5FC49FA6D
treatment provided by	Plazi
scientific name	Ptomaphaginus caroli
status	sp. nov.

Treatment

Ptomaphaginus caroli View in CoL spec. nov.

( figs 14-15 View Figs 13-15. 13 ; 26 View Figs 26-30. 26 ).

Type material.— Holotype ♂: Malaysia: Sabah: Crocker Range Park: Gunung Mas (30 km ESE of Kota Kinabalu), 1350 m alt., pitfall with carrion or dung, 31.vii.2000, leg. M. Schilthuizen ( BOR).

Diagnosis.— Habitus long and narrow, flat ( fig. 26 View Figs 26-30. 26 ). Elytra 1.41 times as long as their combined width (length measured from the caudal tip of the scutellum to the apex of the elytra). Aedeagus ( figs 14-15 View Figs 13-15. 13 ) apically with two short ‘wings’ and a very small, indistinct terminal processus.

Description.— Habitus narrow and elongated, relatively flat ( fig. 26 View Figs 26-30. 26 ). Moderately pigmented: mostly chestnut brown; only the legs and the antennal bases and apices lighter yellowish brown. Length 2.7 mm. Antennae slender and relatively long, 1.1 times as long as the width of the head. Articles 6, 9, and 10 slightly wider than long. Male protarsi strongly dilated: the protibia at its largest width (excluding the lateral spines) is 1.2 times broader than the first article of the protarsus. There are no exceptionally long hairs on the ventral side of profemur and protibia. Thorax 1.62 times as wide as long, relatively flat, almost rectilinearly narrowing from caudal to rostral; the caudal corners sharp, narrowly, but distinctly drawn out. The mesosternal carina is strongly developed, its edge somewhat thickened. Elytra long, 1.41 times as long (measured from the caudal tip of the scutellum) as their combined width. Elytral apices distinctly truncate. Aedeagus ( figs 14-15 View Figs 13-15. 13 ) in dorsal view abruptly narrowing towards the apex, and there adorned with two very short lateral ‘wings’. The tip carries a short and obtuse triangular processus. In lateral view, the aedeagus is almost not curved, except for the apical quarter, which is bent ventrad under an obtuse angle. Male genital segment relatively broad, at the apex slightly triangular, 2.5 times as long as wide. Female unknown.

Distribution.— Only the holotype is known for this species. At the type locality, it was found syntopically with P. similipes spec. nov.

Remarks.— Based on aedeagal shape, P. caroli is closely related to P. bryanti , P. similipes and P. bryantoides . However, it differs from all these by the distinctly elongated habitus (elytral index of 1.41) and the apical ‘wings’ of the aedeagus, which are very short.

Etymology.— Named in honour of Carolus Linnaeus. The present paper appears in conjunction with the 250 th anniversary of the publication of Linnaeus’ Systema Naturae on 1 January 1758, which marks the start of zoological nomenclature.