Hajekia opaca, 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 : 316-320

Hajekia opaca sp. nov.

( Figs 22, 24 )

Type material. HOLOTYPE: J ( NMPC), ‘ Yemen, Socotra island // Dixam plateau 14-15.vi.2012 // Firmihin, Dracaena woodland // 12°28.6′N, 54°01.1′E, 490 m’, ‘ Socotra expedition 2012 // J. Bezděk, J. Hájek, V. Hula, // P. Kment, I. Malenovský, // J. Niedobová & L. Purchart leg. ’. PARATYPES: 3 JJ 3 ♀♀, same label data as holotype ( NMPC) ; ‘ Yemen, Socotra Island // Bizidig // Avicenna marina mangrove, // 13.vi.2012 // 12°18.6′N, 53°48.2′E, 6 m’, ‘Socotra expedition 2012 // J. Bezděk, J. Hájek, V. Hula, // P. Kment, I. Malenovský, // J. Niedobová & L. Purchart leg.’ (4 NMPC, 2 ECRI) .

Description. Male holotype. Body length 1.9 mm. Brown, opaque, antennae and tarsi honey- -red, legs ferruginous. Vestiture the same as in H. parvopunctata sp. nov. ( Fig. 22 ).

Head. Rostrum 1.54 times longer than wide at its widest point and 0.60 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 alutaceous and very minutely punctured. Antennae inserted at apical fifth of rostrum.

Pronotum 1.05 times longer than wide, rather strongly constricted at apex and somewhat collar-shaped, disc rather convex, with moderately large coarse roundish punctures, intervals between them microreticulate, sides barely bisinuous in middle and rather abruptly curved towards apical constriction and towards base, widest point at middle.

Elytra 1.47 times longer than wide, maximum width about at middle. Striae formed by large deep round punctures. Intervals in form of low narrow microreticulate keels; carinate interval IX joined with interval III and moderately protruding on apical quarter of elytral sides.

Legs as in Hajekia parvopunctata sp. nov.

Ventral side with quite large round deep coarse punctures, these much finer on ventrites III and IV. Metaventrite and abdominal ventrite I with quite large common depression.

Variability. Males are almost identical to the holotype. Females have rostrum a little thinner and longer and their abdomen is slightly convex instead of impressed.

Male genitalia. Aedeagus as depicted in Fig. 24 .

Body length. 1.7–1.9 mm.

Differential diagnosis. This species is extremely close to H. parvopunctata sp. nov. due to its small size, minute punctures of upper surface and general appearance. Hajekia opaca sp. nov. differs from H. parvopunctata by the lack of granules on elytral interstriae, much more finely punctured female rostrum, a little shorter elytra and clearly more protruding interval IX at apex.

Etymology. The species name, Latin adjective opacus (- a, - um), of the new species refers to its opaque integument due to the coarse minute punctuation.

Distribution. Endemic to Socotra Island.

Figures

Figs 22–28. 22, 24 – Hajekia opaca sp. nov. 22 – habitus of the holotype; 24 – aedeagus of a paratype in dorsal view. 23 – Hajekia elongata sp. nov., holotype, habitus. 25–26 – Hajekia hirticula sp. nov.: 25 – aedeagus of a paratype in dorsal view; 26 – habitus of the holotype. 27–28 – Hajekia lucida sp. nov.: 27 – habitus of the holotype; 28 – aedeagus of a paratype in dorsal view.