Pseudotetraclipeoides tetraodon, Dellacasa & Dellacasa & Gordon, 2015

Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2015, Pseudotetraclipeoides tetraodon, new genus and new species of Mexican Aphodiini (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2015 (408), pp. 1-3 : 2-3

Pseudotetraclipeoides tetraodon new species

( Fig. 1–5 )

Type locality. 8 mi. W Matachic, Chih[uahua]., Mex[ico].

Type repository. American Museum of Natural History, New York, U.S.A.

Description of male. Length 4.5 mm; oblong, convex, shiny, glabrous. Piceous; clypeal margin and anterior angles of pronotum paler; legs brownish red; antennal club testaceous. Head with epistome somewhat depressed laterally and strongly convex on disc, abruptly declivous medially toward clypeal margin, coarsely subrugosely randomly punctured throughout; clypeus antero-medially deflexed, subsinuate at middle, obtusely angulate and acutely bidenticulate on either side, denticles almost perpendicularly strongly erected, slender and acuminate, lateral margins very thinly bordered, edge moderately reflexed, sparsely bristled; genae subacute, elongately sparsely ciliate, strongly protruding from eyes; frontal suture obsolete; front coarsely, evenly but not closely punctured. Pronotum moderately transverse, convex, dually punctured but with a narrow median longitudinal impunctate areola; large punctures, twice to three times larger than small ones, somewhat denser on sides, lacking on disc; small and coarse punctures, not closely but almost evenly scattered throughout, somewhat deeper on sides; lateral margins feebly arcuate, distinctly bordered, edge sparsely ciliate; hind angles obtusely round; base feebly bisinuate, rather thickly bordered. Scutellum flat, with few sparse and rather coarse punctures in basal half. Elytra elongately oval, slightly widened posteriorly, very convex, finely, not very deeply striate; striae superficially punctured, faintly crenulate; interstriae slightly convex, finely sparsely punctured. Foretibial spur bent downward, outward curved and evenly acuminate. Lower spur of middle tibia short, stout and apically hooked inward. Hind tibial upper spur somewhat longer than first tarsal segment; latter longer than following two segments combined. Metasternal plate convex, glabrous, with only trace of median longitudinal groove, distinctly evenly, rather sparsely punctured. Aedeagus Fig. 3–4 .

Female: unknown.

Type material. MEXICO: Chihuahua: 8 mi. W Matachic, 7200 ft, 08.VII.1947, leg. Michener, Dr. Rockefeller Exp., 1 ex. (male, holotype, AMNH).

Figures

Figures 1-5. Pseudotetraclipeodes tetraodon, new species (8 mi. W Matachic, Chihuahua, Mexico). 1-2) Habitus (morphological details and length ideogram). 3-4) Aedeagus (dorsal and lateral view). 5) Epipharynx.