Thyreocephalus taiwanensis, Bordoni, 2012

Bordoni, A., 2012, New data on the Oriental Xantholinini. 29 °. New species and new records from Taiwan of the Hungarian Natural History Museum of Budapest (Coleoptera, Staphylinidae) 234 ° contribution to the knowledge of the Staphylinidae, Linzer biologische Beiträge 44 (2), pp. 1053-1056 : 1054

Thyreocephalus taiwanensis nov.sp. ( Figs 1-5 )

E x a m i n e d m a t e r i a l Holotype: Taiwan, Ilan county (hsien), Mingchyh Forest, 1200 m, ricreation area, G. Fabian & O. Merkl 5.IV.2001 ( UNHM).

D e s c r i p t i o n: Body length 14,5 mm; length from anterior margin of head to posterior margin of elytra 7 mm. Body flat. Head and pronotum black; elytra testaceous reddish with scutellum brown black; abdomen brown black with red genital segment; antennae and legs brown reddish.

Head sub-quadrangular ( Fig. 1 ), large, with slightly rounded sides and largely rounded posterior angles. Eyes small, just protruding, antennae with 3° article as long as the two following together. Surface with a longitudinal strip of fine punctures; some large punctures as in Fig. 1 ; a groove near the interior margin of the eyes; numerous deeper punctures on the tempora. Labrum as in Fig.2 .

Pronotum clearly narrower and longer than head, with a puncture near the anterior angles.

Elytra long and narrow, sub-rectangular, with sub-parallel and sub-rectilinear sides and marked humeral angles. Surface with numerous series of superficial punctures. Scutellum large, with some superficial punctures. Andomen with fine and dense transversal microstriature and deep puncturation on the sides, with long yellowish setae.

Tergite and sternite of the male genital segment as in Figs 3-4 . Aedeagus ( Fig. 5 ), 1,3 mm long, with median lobule very long and of particular structure; parameres short and symmetric; inner sac ribbon-like, narrow and long, irregularly coiled and covered by very fine and sparse scales.

D i s t r i b u t i o n: It is known to me only from the type locality.

E t y m o l o g y: The specific epithet is based on the name of Taiwan.

N o t e: Until a few time ago it was not clear whether the genus Thyreocepahalus was present in Taiwan. In a recent contribution ( BORDONI 2010a) has been shown that the genus occurs also on the island, of which two species are known so now ( T. formosanus BORDONI 2010 and T. taiwanensis nov.sp.). The new species differs from T. formosanus , known for a female of Kosempo, by dimension, colouration, puncturation and microsculture of head, and shape of labrum.

Figures

Figs 1-5: Head, labrum, tergite and sternite of the male genital segment, aedeagus of Thyreocephalus taiwanensis nov.sp. (bar scale: 0,1 mm).