Hajekia elongata, 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 : 320-321

Hajekia elongata sp. nov.

( Fig. 23 )

Type material. HOLOTYPE: ♀ ( NMPC), ‘ Yemen, Socotra Island, // Dixam plateau, Tudhen // shrubland with Commiphora // planifrons , 18+ 22.vi.2012 // 12°32.7′N, 53°59.9′E, 1135 m’, ‘ Socotra expedition 2012 // J. Bezděk, J. Hájek, V. Hula, // P. Kment, I. Malenovský, // J. Niedobová & L. Purchart leg.’. PARATYPES: 2 ♀♀, same label data as holotype (1 NMPC, 1 ECRI).

Description. Female holotype. Body length 2.8 mm. Piceous, opaque, antennae and tarsi honey-red, apex of tibiae ferruginous. Semierect pale golden setae are in apical two thirds, and few similar minute ones are on underside of apex and on sides of rostrum. Very thin slightly erect golden setae are very sparse on ventrites ( Fig. 23 ).

Head. Rostrum 2.77 times longer than wide at its widest point and 0.73 times as long as pronotum, slightly dilated at base, moderately curved and slightly tapering towards apex in lateral view, dorsum longitudinally and irregularly strigose up to antennal insertion, then microreticulate. Scrobes large, rather deep, smooth, and reaching base of head below eyes. Antennae inserted at apical quarter of rostrum. Head strigose like dorsum of rostrum.

Pronotum 1.09 times longer than wide, collar-shaped, disc rather convex, with quite small coarse roundish punctures, sides almost parallel sided in middle and moderately curved towards apical constriction and towards base, widest at middle.

Elytra twice as long as wide, maximum width at middle. Striae formed by very large deep subrectangularly elongate punctures. Intervals keeled and bearing row of semierect claviform elongate scales.

Legs. Femora relatively elongate, upper margin more strongly curved than lower one; tibiae both longitudinally and transversally slightly bisinuous, internal margin of protibiae with setose concavity at their apical third, that of meso- and metatibiae less pronounced, at apex with stout internal mucro besides strong external uncus.

Ventral side with large round deep coarse punctures, these much finer and irregular on ventrites III to V. Ventrites I and II uniformly convex.

Variability. Other females are similar to the holotype, one of them has elytra slightly shorter and darker integument.

Body length 2.1–2.4 mm.

Differential diagnosis. This new species resembles H. microps sp. nov. in its relatively large size and elongate shape, but immediately differs by the even more elongate rostrum, pronotum and elytra, and the presence of obvious erect clubbed setae on elytral intervals. This last feature is shared with the smaller and plumper H. hispidirostris sp. nov. which has setae also on rostrum and pronotum, so cannot be confused with H. elongata sp. nov.

Etymology. The species name is Latin adjective elongatus (- a, - um), emphasizing the elongate body of the new species.

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.