Embates uniformis Prena, 2005

Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151

28. Embates uniformis Prena sp. n.

(Fig. 111, 248)

Holotype male, Costa Rica , labeled: “ COSTA RICA: Prov. Heredia:/ 6km ENE Vara Blanca, 1950–/ 2050m, 10°11'N 84°07'W / 15.– 16.2.2003 / INBio­OET­ALAS transect”, “handcollecting/ leg. Jens Prena ”, INB0003230243 ( INBC).

Paratypes 2 (male), labeled: “ COSTA RICA, Prov. Cartago:/ Genesis II, 4 km E Cañon ,/ 2350m, 9°42.5'N 83°55'W / 7.3.2005, leg. J. Prena ” ( JPPC); “ COSTA RICA: Heredia / Cerro Chompipe/ 10°05'20"N, 84°04'30"W / ca. 2km. N. Monte de la/ Cruz, 2000m, 12.VI.1997 / R. Anderson, cloud forest/ beating, 97­012­X” ( CMNC) .

Description. Habitus: Similar to Fig. 109, total length 5.3–6.1 mm (m=5.6, n=3). Color: integument dark rufous; basic vestiture of uniform, yellowish scales, flanks and venter with whitish scales. Head: frontal fovea absent, rostrum slender, subcylindrical, costate dorsomedially, basolateral margin slightly edged, length of rostrum ♂♂ 1.36–1.39 x (m=1.37, n=3) pronotal length, length of ante­antennal portion ♂♂ 0.39–0.40 x (m=0.40, n=3) total rostral length, dorsal margin of antennal scrobe reaching rostral base before eye; length of funicular segments 1 and 2 subequal, club oblong ovate. Pronotum: length 0.89– 0.93 x (m=0.91, n=3) maximum width, relatively small, subconical, greatest width at base, anterior portion tubulate, punctation dense and shallow. Elytra: length 1.89–1.94 x (m=1.92, n=3) width at humeri, width 1.43–1.46 x (m=1.45, n=3) maximum pronotal width, sides subparallel in basal half, then increasingly narrowed toward apex, apices rounded conjointly, preapical callus strongly developed, costate, striae fine, punctures moderate, interstriae flat, 5, 7 and 9 costate subdistally, middle portion of disc slightly raised and with interstriae convex (Fig. 111). Legs: tibiae slightly curved and parallelsided, distally with cluster and indistinct fringe of cupreous hairs, tarsal claws arcuate and separate at base. Male: aedeagus as E. pictipennis .

Plant association. Piper tenuimucronatum (Prena 2).

Distribution. Costa Rica, evergreen montane forests between 2000–2350 m (Fig. 248).

Specific epithet. The name is a Latin adjective.

Discussion. Embates uniformis belongs to the E. pictipennis group, as indicated by the short body of the aedeagus and the slender habitus. It can be similar to specimens of E. euscheme with reduced elytral vitta, but generally has lighter scales ventrally and laterally, and the preapical callus is raised and costate.