Hajekia parvopunctata, Colonnelli, 2014

Colonnelli, Enzo, 2014, Apionidae, Nanophyidae, Brachyceridae and Curculionidae except Scolytinae (Coleoptera) from Socotra Island, Acta Entomologica Musei Nationalis Pragae 54, pp. 295-422 : 315-316

Hajekia parvopunctata sp. nov.

( Fig. 18 )

Type material. HOLOTYPE: ♀ ( MCCI), ‘ Socotra ( YE) // Homaq // 11.X.2007 - R. Sindaco’.

Description. Female holotype. Body length 2.1 mm. Brown, rather shining, antennae and tarsi honey-red, legs ferruginous. Almost invisible, nearly recumbent curved microscopic setae are arranged in a row on elytral intervals, and some long semierect silvery setae are on sides and on underside of apex of rostrum apicad of antennal insertion. Very thin slightly erect microscopic golden setae are sparse on ventral side ( Fig. 18 ).

Head. Rostrum 1.73 times longer than wide at its widest point and 0.74 times as long as pronotum, scarcely narrowing from base to antennal insertion, then moderately dilated towards apex, dilated at base, slightly curved from base to antennal insertion and more strongly so apicad of it, slightly tapering towards apex in lateral view, dorsum longitudinally minutely and strigosely punctured. Scrobes large, rather deep, smooth and reaching base of head below eyes. Antennae inserted at apical quarter of rostrum. Head with same small strigose punctures as dorsum of rostrum, vertex alutaceous basad of eyes.

Pronotum 1.06 times longer than wide, rather strongly constricted at apex and somewhat collar-shaped, disc rather flat, with minute coarse roundish punctures, intervals between them microreticulate, sides slightly bisinuous in middle and rather abruptly curved towards apical constriction and towards base, widest point at basal third.

Elytra 1.70 times longer than wide, maximum width at apical quarter. Striae formed by moderately large deep round punctures. Intervals in form of low narrow keels with series of small granules more prominent on posterior third; subcarinate interval IX joined with interval III and only slightly protruding on apical quarter of elytral sides.

Legs. Femora relatively elongate, dorsal margin more strongly curved than ventral one; tibiae compressed and slightly bisinuous, at apex with small acute internal mucro besides strong external uncus.

Ventral side with quite large round deep coarse punctures, these much finer on ventrites III and IV.

Differential diagnosis. Although this species is quite close to the preceding one, it is readily separated from H. microps sp. nov. by its smaller size, shorter rostrum clearly dilated towards apex, much more densely and minutely punctured pronotum, small and roundish punctures of elytral striae and minutely granulate intervals. See the key below for differences from other Socotran species of Hajekia .

Etymology. The new species is named after the minute punctures of pronotum, its name is the Latin adjective parvopunctatus (- a, - um), meaning ‘with small punctures’.

Distribution. Endemic to Socotra Island.

Figures

Figs 16–21. 16–17, 19 – Hajekia microps sp. nov., holotype 16 – habitus; 17– habitus in side view; 19 – aedeagus in dorsal view. 18 – Hajekia parvopunctata sp. nov., holotype. habitus. 20 – Dryotribus mimeticus (Horn, 1873), habitus of a specimen from Japan, picture available on http://kogane.wem.sfc.keio.ac.jp accessed December 27, 2011. 21 – Cotaster cuneipennis (Aubé, 1850), habitus of a specimen from France, picture by Claude Schott from www.claude. schott.free.fr accessed December 27, 2011.