Edaphus nodifrons, 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 : 878

Edaphus nodifrons nov.sp. ( figs 6, 7 )

T y p e m a t e r i a l Holotype () and 1 - paratype: 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, moderately shiny, head moderately finely, pronotum finely, densely punctate, elytra very shallowly granulose, pubescence recumbent.

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

PM of the ht: HW: 23; DE: 15; LE: 7; LT: 1; LG: 2.5; PW: 24; PL: 22: dlbc: 16; EW: 36; EL: 32; SL: 25.

M a l e: Sternite 8 ( fig. 7 ). Sternite 9 acute apicomedially, with two fields of about 9 ha. SpP tubular, about 1.5x as long as the aedeagus, vs? Aedeagus ( fig. 6 ).

Head narrower than pronotum, eyes large, moderately coarsely facetted, temples very short, ptfF and alfF distinct, ampF about as broad as each of the alpF, distinctly (moderately) elevated, completely margined by the convergent alfF anteriorly, separated from clp by a transverse ridge; frons, except median "knob" extremely finely punctate/sculptured. Antennae very short, when reflexed extending to about the middle of the pronotum, club 2-segmented, segment 10 broader than long. Pronotum broader than long, sides convex anteriorly, strongly constricted behind, lbc and mbc (extending to base proper) distinct, 4-6 bf present; punctuation fine and very dense, punctures nearly as coarse as eye facets, interstices less than diameter of punctures. Elytra broader than long, slightly widened behind, sides slightly convex, shoulders simple, surface not smooth but densely and shallowly granulose. Mbct3 very short, much shorter than half the tergite.

C o m p a r a t i v e n o t e s:InmykeytotheOriental Edaphus ( PUTHZ 1979b) this new species should be inserted at column 130. From E. puncticollis PUTHZ it may be easily distinguished by the smaller size, much finer pronotal punctuation and the elevated ampF.

E t y m o l o g y: Since the ampf has a distinct elevation I name this species " nodifrons " (Lat.= with a "knob" on frons).

Figures

Figs 1-13: Head and pronotum with acronyms (see text) (1), aedeagi (2-6, 11), Sternite 8 of male (7-10, 12, 13) of Edaphus carinulifrons nov.sp. (2, 8), E. acupunctatus nov.sp. (3, 9), E. boopoides nov.sp. (4, 13), E. latipennis nov.sp. (5, 10), E. nodifrons nov.sp. (6, 7) and E. hermani nov.sp. (11, 12).- Scale = 0.1mm.