Dryotomicus woodrex, Cognato, Anthony I. & M. Smith, Sarah, 2010

Cognato, Anthony I. & M. Smith, Sarah, 2010, Resurrection of Dryotomicus Wood and description of two new species from the Amazon River Basin (Coleoptera, Curculionidae, Scolytinae, Phloeotribini), ZooKeys 56, pp. 49-64 : 56-58

Dryotomicus woodrex sp. n. Figs 6-8

Diagnosis.

Dryotomicus woodrex is distinguished from the other Dryotomicus species by three medial tubercles arranged transversely on a tumescence on the male frons; the interstriae flush with striae on the elytral declivity.

Description.

Holotype, male, total length 4.6 mm, 2 × longer than wide, antennae reddish-black, head, legs, thorax, and elytra tannish (perhaps teneral). Pronotum tannish with dark diamond pattern (Fig. 6).

Head. Frons shagreen with setae approximately as long as or longer than funicle; three medial tubercles arranged transversely on a tumescence between antennal insertion and dorsal margin of eye; lateral carinae from epistoma to dorsal end of eye thicker at antennal insertions (Fig. 7A). Vertex shagreen with setae approximately as long or longer than funicle; slightly concave. Antennae, scape expanded distally and curved proximally beyond the anterior edge of pronotum, funicle 5-segmented, segments 1 and 2 about equal length and each as long as segments 3-5 combined, club pseudo-lamellate, asymmetric, segment 1 expanded at base (j- shaped). Eyes oval, ventrally acute (Fig. 3A).

Pronotal width 2.3 mm, 0.65 × longer than wide; quadrate disk, summit not distinct, surface densely punctured with appressed pubescence and scattered longer setae approximately as long as funicle concentrated anteriorly and laterally.

Elytra 1.2 × longer than wide, 2 × longer than pronotum, striae on disk not impressed, punctures distinct; interstriae 3 –4× width of striae, long uniserial setae approximately as long as funicle arising from granules (Fig. 6). Elytral declivity densely scaled with scattered long setae concentrated along the lateral margin (Fig. 7B).

Male genitalia. Aedeagal body (median lobe) conical, apex acute, lateral margins heavily sclerotized medially on apical half, apophyses (struts), as long as body, attached ventrally; internal sac central area lightly sclerotized, lateral margins heavily sclerotized appearing as ventral struts directed apically, seminal trough proximal end comprised of two parallel lobes (Fig. 8). Tegmen circular, weakly sclerotised on dorsal side. Spiculum gastrale destroyed by dissection.

Female is unknown.

Type material.

Holotype bears the collection data label: "PERU: Dept. Loreto, 1.5km N Teniente Lopez, 4°35.66'S; 76°06.92'W, 22 July 1993, 210-240 m, Richard Leschen #164, ex: flight interception trap". The holotype is deposited in the Snow Museum, University of Kansas [SMEC].

Etymology.

The name “woodrex” honors Dr. Stephen L. Wood’s kingly contribution to the knowledge of scolytine and platypodine taxonomy. It is used as a noun in apposition.