Edaphus bisulcaticollis, Puthz, 2014

Puthz, V., 2014, Some new Oriental Edaphus MOTSCHULSKY, mainly from Vietnam (Coleoptera, Staphylinidae) 119 th Contribution to the Knowledge of Euaesthetinae, Linzer biologische Beiträge 46 (1), pp. 877-887 : 884-885

Edaphus bisulcaticollis nov.sp.

T y p e m a t e r i a l: Holotype (): VIETNAM: Hatinh Prov. , Raô An, 13 km W Huang Son, rt. 8 7 km S Nuòc Sôt village, 18 o 21’N, 105 o 15’E, 300m, flight interception trap, 9.-22.V.1998, Lee Herman: in the AMNH.

D e s c r i p t i o n: Macropterous, light brown, shiny, impunctate, pubescence recumbent.

Length: 1.0mm (fore body: 0.55mm).

PM of the ht: HW: 23.5; DE: 15; LE: 7.5; LT: 1.5; LG: 3.5; PW: 25; PL: 24; dlbc: 19; EW: 37; ELK: 34; SL: 27.

M a l e: Unknown.

Head slightly narrower than pronotum, eyes large, finely facetted, restricted temples short, ptfF and alfF distinct, ampF about as broad as each of the alpF, slightly convex, no distinct separation between ampF and clp, alfF slightly broadened behind, a narrow transverse impression anteriorly. Antennae short, when reflexed not extending to the posterior margin of the pronotum, club 2-segmented, segment 10 broader than long. Pronotum distinctly broader than long, sides evenly convex anteriorly, strongly con- stricted behind, with distinct (not elongated) lbc, mbc extending to base proper, 6 small bf present; mbf elongated anteriad and slightly broadened (Y-shaped), extending to the anterior fifth of the pronotum, mbf near mbc elongated anteriad forming a very narrow longitudinal furrow. Elytra broader than long, sides moderately convex, shoulders simple. Mbct3 about as long as half of the tergite.

C o m p a r a t i v e n o t e s: This new species should belong to the E. dissimilis group ( PUTHZ 2010: 266). It resembles some Taiwanese species. From E. peitawumontis PUTHZ it may be distinguished by the shorter lbc, 6 bf and longer mbct3. In my key (1979b) it should be inserted at column 88; from E. plicifer PUTHZ it may be distinguished by the broader head, the different outline of the less broad pronotum and the Yshaped elongated mbc.

E t y m o l o g y: Because of the two longitudinal sulci of the pronotum I name this species " bisulcaticollis " (Lat.= with two sulci on pronotum).

Further records from the flight interception trap at VIETNAM: Hatinh Prov., Raô An, 13 km W Huang Son, rt. 8 7 km S Nuòc Sôt village, 18 o 21’N, 105 o 15’E, 300m, 9.- 22.V.1998, Lee Herman:

Edaphus annamensis PUTHZ , 19 Exx.

Edaphus granulipennis PUTHZ , 2 Exx.

Edaphus imitator PUTHZ , 58 Exx.: first record from Vietnam

Edaphus planus PUTHZ , 3 Exx.

Edaphus puncticollis PUTHZ , 13 Exx., first record for Vietnam.