Hajekia hirticula, 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 : 321-322

Hajekia hirticula sp. nov.

( Figs 25, 26 )

Type material. HOLOTYPE: J ( NMPC), ‘ Yemen, Socotra island // Kazazhan area // shrubland on limestone; sifting // 10.vi.2012 // 12°33.8′N, 54°19.8′E, 540 m’, ‘ Socotra expedition 2012 // J. Bezděk, J. Hájek, V. Hula, // P. Kment, I. Malenovský, // J. Niedobová & L. Purchart leg. ’. PARATYPES: 4 JJ 9 ♀♀, same label data as holotype (7 NMPC, 1 BMNH, 3 ECRI).

Description. Male holotype. Body length 1.5 mm. Brownish, matt, antennae, unci and tarsi honey-red, tibiae ferruginous, femora brownish-red. Tiny claviform yellowish scales arranged in row on each elytral interval. Very thin almost recumbent golden setae are sparse on ventrites ( Fig. 26 ).

Head. Rostrum 1.45 times longer than wide at its widest point and 0.53 times as long as pronotum, basal two thirds almost straight, apical third slightly curved and barely tapering apically in lateral view. Antennae inserted at apical fifth of rostrum. Head and dorsum of rostrum alutaceous.

Pronotum 1.07 times longer than wide, collar-shaped, disc slightly convex, with moderately small coarse roundish punctures, sides almost parallel sided in middle and quite strongly curved towards apical constriction and towards base, widest point at basal third.

Elytra 1.37 times longer than wide, suboval, maximum width at middle. Striae formed by not very large, deep, subrectangular punctures. Intervals almost flat, rugulose, bearing row of semierect claviform elongate scales.

Legs relatively short but not differing in structure from other species of the genus.

Ventral side with moderately large, round, quite sparse punctures, these finer on ventrites III to V. Ventrites I and II slightly impressed.

Variability. Paratypes are very similar to the holotype. Females have longer rostrum and lack abdominal impressions.

Male genitalia. Aedeagus as depicted in Fig. 25 .

Body length 1.4–1.8 mm.

Differential diagnosis. The smallest species of the genus. It is easy to recognise by its short rostrum, suboval elytra, and erect claviform scales on intervals. See also the key to species below.

Etymology. The species name, Latin adjective hirticulus (- a, - um), meaning ‘small and setose’, is given in reference to appearance of the insect.

Collection circumstances. Sifted from litter in a limestone ravine under Ficus vasta Forssk. (Moraceae) (J. Hájek, pers. comm.).

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.