Embates subulirostris Prena, 2005

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

40. Embates subulirostris Prena sp. n.

(Fig. 149–150, 258)

Holotype female, Costa Rica, labeled: “ Costa Rica, PUNTA.: 4/ km S San Vito, Wilson/ Bot. Garden, 1100 m,/ 26.3.2000, leg. Prena ” ( INBC).

Paratype 1, female, labeled: “ Costa Rica, San Vito / V­15–1981 / J.E. Wappes ” ( CWOB) .

Description. Habitus: total length 6.1–6.5 mm (n=2). Color: integument piceous, antenna rufous; basic vestiture moderately dense, light yellow, dorsolateral pronotal vitta vestigial, scales velvety black in heart­shaped elytral macula (Fig. 149); venter with creamy white scales on prosternum and along flank. Head: frontal fovea absent, rostrum slender, awl­shaped, base slightly incrassate (Fig. 150), apex expanded laterally, base subcostate dorsomedially, basolateral margin slightly edged, length of rostrum ♀♀ 1.13–1.15 x (n=2) pronotal length, length of ante­antennal portion 0.45–0.47 x (n=2) total rostral length, dorsal margin of antennal scrobe reaching rostral base before eye; funicular segment 2 slightly longer than 1, club oblong ovate. Pronotum: length 0.97–0.99 x (n=2) maximum width, sides rounded, widest in basal half, anterior portion notably tubulate; disk densely punctate, intervals granulose, subcostate dorsomedially or not. Elytra: length 1.83–1.89 x (n=2) width at humeri, width 1.36–1.38 x (n=2) maximum pronotal width, sides subparallel in basal half, apices rounded conjointly, preapical callus developed, striae fine, punctures indistinct, interstriae flat, 9 costate, 7 subcostate near subapical callus. Legs: slender, tibia nearly straight and parallel­sided, ventral margin with distal cluster of cupreous hairs, tarsal claws flat and approximate at base.

Plant association. Not known.

Distribution. Costa Rica, Pacific side, Fila Costeña (Fig. 258).

Specific epithet. The name is a compound Latin adjective derived from subula (awl) and rostrum.

Discussion. Embates subulirostris can be recognized within the E. euchasma complex by its dark integument and the slender, awl­shaped rostrum. Its morphometrical data agree with those of the smaller­sized E. oculifer , but deviate significantly from those of the Atlantic sibling species E. euchasma and E. cordiger .