Gerstaeckerus rufiplagiatus, Tomaszewska, 2014

Tomaszewska, Wioletta, 2014, New species of the Amphisternus-group of Lycoperdininae from Philippines (Coleoptera: Endomychidae), Acta Entomologica Musei Nationalis Pragae 54 (2), pp. 635-644 : 643

Gerstaeckerus rufiplagiatus sp. nov.

( Figs 6–8 , 14 )

Type material. HOLOTYPE: ♀, ‘ PHILIPPINES / Mindanao / Bukidnon / Calahinan / X. 2013 / leg. I. Lumawig // Holotype Gerstaeckerus rufiplagiatus sp. nov., Tomaszewska 2014’ ( MZPW) .

Description. Length 9.00 mm. Body 1.88 times as long as wide; pronotum 0.55 times as long as wide; elytra 1.27 times as long as wide; 3.40 times longer than pronotum, 1.48 times wider than pronotum. Body black, with only each elytron covered with elongate, reddish fascia ( Fig. 6 ); shiny; moderately convex; glabrous. Antenna ( Fig. 7 ) about 0.5 times as long as body; club flattened and comparatively narrow. Pronotum ( Fig. 8 ) widest near anterior third; lateral margins rounded along anterior half then constricted in basal third; posterior angles about right-angled, anterior angles subacute; punctures fine, 2.0–3.0 diameters apart. Prosternal process about 0.5 times as wide as procoxal diameter, excised at apex. Elytra with lateral margins weakly rounded toward apex; widest in front of mid length; with punctures as large as the pronotal ones, 1.5–2.5 diameters apart. Female genitalia as in Fig. 14 .

Male unknown.

Differential diagnosis. This species is easily distinguished from all its congeners by having elongate, red-orange fascia on each elytron.

Etymology. The specific epithet refers to the elongate red-orange fasciae on the elytra.

Distribution. Philippines (Mindanao).

Figures

Figs 1–8. Habitus. 1–5 – Amphisternus alberti sp. nov.; 6–8 – Gerstaeckerus rufiplagiatus sp. nov. 1, 6 – dorsal habitus; 2 – lateral habitus; 3, 8 – pronotum; 4, 7 – antenna; 5 – habitus, anterior view.

Figs 9–14. Genitalia. 9–13 – Amphisternus alberti sp. nov.; 14 – Gerstaeckerus rufiplagiatus, sp. nov. 9 – aedeagus, dorsal view; 10 – aedeagus, ventral view; 11 – abdominal segment VIII, male, ventral view; 12 – male genital segment, ventral view; 13, 14 – female genitalia, ventral view.