Pachycorynus lanceolatus, Bordoni, 2017

Bordoni, Arnaldo, 2017, New data on the Oriental Xantholinini. 44. New species and new records from Nepal, Malaysia, Vietnam, Philippines, Sumatra, and Sabah (Coleoptera Staphylinidae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 255-264 : 258

Pachycorynus lanceolatus spec. nov.

urn:lsid:zoobank.org:act:EB10CBEA-8DEE-42EC-A58C-585FB85078D8

( Figs 13-15 , 32)

Examined material: Holotype ♂: Borneo, Sabah, Danum Valley, 90 km W Lahad Datu, 100 m, Zhou 22.IV.2015 ( cB).

Description: Length of body 3.5 mm; from anterior margin of head to posterior margin of elytra: about 1.9 mm. Head without lateral grooves. Similar to P. danum spec. nov. from which differs by the following characters: body (Fig. 32) narrower, with partially lighter posterior half of elytra; head longer and narrower, with more evident punctation; eyes larger and more protruding; pronotum longer, less dilated anteriad, with more oblique anterior margins and sparser punctation; elytra narrower.

Tergite and sternite of the male genital segment as in Figs 13-14 . Aedeagus ( Fig. 15 ) with moderately long basal bulb; distal portion small, 0.18 mm long, with spear shaped apex; inner sac apparently not visible.

Etymology: The specific epithet is the Latin lanceolatus (spear shaped), in relation to the shape of the apex of the median lobe.

Distribution: The species is known only from the type locality.

Figures

Figs 13–27: Tergite and sternite of the male genital segment and aedeagus of Pachycorynus lanceolatus spec. nov. (13–15), Metolinis vucanalis spec. nov. (16–18), Metolinis jubing spec. nov. (19–21) (scale bar: 0.1 mm), Phacophallus philippinus spec. nov. (22–24), and Medhiama nepalica spec. nov. (25–27) (scale bar: 0.1 mm).