Phacophallus philippinus, 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 : 259

Phacophallus philippinus spec. nov.

urn:lsid:zoobank.org:act:7175C0E0-77AD-4DBA-94FC-00FA79EE61FF

( Figs 22-24 )

Examined material: Holotype ♂: Philippines, Mindanao , Lanao del Norte, Baloi env ., C. Finetti VI. 2001 ( cB) .

Description: Length of body 3.8 mm; from anterior margin of head to posterior margin of elytra: 2.3 mm. A small, shiny Phacophallus , reddish brown, with darker head and yellowish brown elytra; antennae and legs brown. Head sub-rectangular, slightly narrow anteriad, with sub-rectilinear sides and largely rounded posterior angles. Eyes medium-sized and slightly protruding. Surface of head with deep, long ocular and frontal grooves, and with fine, very sparse punctation. Pronotum very dilated anteriad, with oblique anterior margins, largely rounded anterior angles and sinuate sides, longer than head, as wide as it in anterior portion. Surface with dorsal series of 5 punctures and lateral series of 4 punctures. Elytra broad, long, dilated posteriad, with rounded humeral angles. Surface wrinkled, with three series of very fine punctures, one juxtasutural, one median and one lateral. Abdomen without microsculpture, with fine, very scattered punctation.

Tergite and sternite of the male genital segment as in Figs 22-23 . Aedeagus ( Fig. 24 ) 1 mm long, of usual shape; inner sac short, covered with fine scales and spinulae, and with 4 short, robust spines in the middle portion.

Etymology: The specific epithet refers to Philippines.

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

Remarks: This species differs from the congeners by the small size, shape of pronotum and by the structure of inner sac of the aedeagus. In the Philippines occurs Phacophallus pallidipennis ( MOTSCHULSKY, 1858) and P. flavipennis ( KRAATZ, 1859) ( BORDONI, 2002) .

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).