Edaphus acupunctatus, 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 : 881

Edaphus acupunctatus nov.sp. ( figs 3, 9 )

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, reddish brown, nearly dull, forebody densely punctate, pubescence recumbent.

Length: 1.1mm (fore body: 0.65mm).

M a l e: Sternite 8 ( fig. 9 ). Sternite 9 acute apicomedially, with some scattered ha. SpP tubular, nearly twice as long as the median lobe, with a short distal trumpet, vs small, about as large as half of the apical portion of the median lobe. Aedeagus ( fig. 3 ), parameres much shorter than median lobe, with 1 apical seta.

Head narrower than pronotum, eyes very large, finely facetted, no distinct temples, ptfF and alfF distinct, ampF broader than each of the moderately elevated alpF, flat, no special separation between ampF and clp, posteromedian portion of frons densely punctate, ampF also punctate, but punctures slightly less coarse. Antennae short, when reflexed not extending to the posterior margin 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, 6 bf present; punctuation moderately coarse and very dense, punctures larger than eye facets, interstices less than half diameter of punctures. Elytra longer than broad, subquadrate, sides slightly convex, shoulders simple, punctuation as coarse and as dense as on pronotum. Mbct3 as long as the tergite.

C o m p a r a t i v e n o t e s: This new species resembles strongly E. densipennis Cameron , but may be distinguished by larger eyes and the punctate frons. In my key (1979b) it should be inserted at column 119; from E. punctulatus PUTHZ it may be distinguished by the smaller size, punctate frons, narrower elytra and the aedeagus with much shorter parameres.

E t y m o l o g y: Because of the distinct punctuation I name this species " acupunctatus " (Lat.= distinctly punctate).

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.