Neosibinia lepidosoma, Poinar & Legalov, 2015

Poinar, G & Legalov, AA, 2015, New Curculioninae (Coleoptera: Curculionidae) in Dominican amber, Palaeontologia Electronica 677 (1), pp. 1-15 : 10

Neosibinia lepidosoma sp. nov.

Figure 8 , Figure 9

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Holotype. Deposited in the PACO (accession # C-134).

Description. Length body, 2.2 mm; length rostrum, 0.4 mm.

Body brown, covered with reclining to erect scales. Rostrum 0.8 times as long as pronotum, 5.8 times longer than wide at apex, 3.9 times longer than wide in middle, 3.4 times longer than wide at base, without carinae, punctate; forehead 0.5 times as wide as eye width, punctate; diameter of eye slightly greater than rostrum at base; scape elongate, 6.0 times longer than wide, 1.1 times as long as funicle length; first antennomere 1.3 times longer than wide, 0.3 times as long as and 1.5 times as wide as scape; club 4.3 times longer than wide, equal in length to funicle.

Pronotum 1.6 times longer than wide at apex, 1.1 times longer than wide in middle, 1.2 times longer than wide at base. Elytra 1.6 times longer than wide at base, 1.4 times longer than wide in middle, 1.7 times longer than wide at apical fourth, 2.2 times as long as pronotum; strial punctures oval, large and dense; elytral intervals weakly convex, quite wide, 2.0-3.5 times as long as striae.

Thorax punctate; procoxal cavities more or less equidistant from anterior and posterior margin of prosternum; precoxal portion 0.4 times as long as procoxal cavity length; mesocoxal cavities widely separated, metepisternum narrow, 5.7 times longer than wide in middle.

Abdomen convex ventrally; first ventrites longer than second ventrite; third and fourth ventrites almost equal in length; fifth ventrite elongate. Pro- and mesocoxae conical; metacoxae transverse; trochanters obconical; profemora 4.5 times longer than wide; metafemora 2.8 times longer than wide; protibia slightly curved; metatibiae 4.6 times longer than wide in middle; tarsi long; first to third tarsomeres conical; fifth elongate; tarsomeres with pulvilli on underside.

Type Locality. Amber mine in the Cordillera Septentrional of the northern portion of the Dominican Republic.

Etymology. The specific epithet is from the Latin “lepis” = scale and the Latin “soma” = body in reference to the scales covering the body.

Figures

FIGURE 8. Lateral view of Neosibinia lepidosoma sp. nov. in Dominican amber. Bar equals 0.570 mm.

FIGURE 9. Dorsal view of Neosibinia lepidosoma sp. nov. in Dominican amber. Bar equals 0.540 mm.