Parvorhynchus sordidus, 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 : 341

Parvorhynchus sordidus sp. nov.

( Figs 47–49 )

Type material. HOLOTYPE: J ( NMPC), ‘ Yemen, Socotra Island // Al Haghier Mts. // Scant Mt. env. // 12°34.6′N, 54°01.5′E, 1450 m // Jiří Hájek leg. 12-13.xi.2010 ’. PARATYPES: 1♀, same label data as holotype ( NMPC) ; 2JJ (one with abraded crust), ‘ Yemen, Socotra // Al Haghier Mts. [sifting] // Scant Mt. env., 1450 m // 12°34.6′N, 54°01.5′E // 12-13.xi.2010, J. Bezděk’ (1 NMPC, 1 ECRI) .

Description. Male holotype. Body length 2.7 mm. Dark red-brown, shining, antennae and legs pale ferruginous. Ventral surface with moderately dense semierect, golden, hair-like scales emerging from earthy coating ( Figs 47 and 48 ).

Head. Rostrum as long as wide, pterygia moderately protruding, setose on sides. Epifrons at narrowest point about 0.75 times as wide as rostrum between antennal insertions. Scrobes quite elongate, smooth and bare, partly sublateral yet entirely visible in dorsal view, in lateral view slightly widening backwards.Antennae rather thin; scape faintly curved and moderately clubbed; funicular antennomere I slightly longer and a little wider than II, antennomere II about twice as long as III, antennomeres III to VII moniliform and only slightly differing each other, not transverse; club fusiform, about as long as three preceding antennomeres.

Prothorax 1.04 times longer than wide, widest just apicad of middle.

Elytra elongate, 1.67 times longer than wide, about 1.39 times as wide as pronotum, widest at basal quarter, then sides almost straight and converging up to apical third where they curve towards broadly convex apex. Striae formed by large deep round punctures; intervals somewhat convex and slightly narrower than striae.

Legs. Femora sparsely clothed by erect, partly clubbed setae, except internal side; tibiae slightly compressed starting from apical quarter, with slightly bisinuate internal margin, mesotibiae with erect long, curved, whitish, thin, woolly setae on internal margin; tarsi short, tarsomere II transverse, tarsomere III bilobed, all with some stiff erect long setae; claws edentate.

Male genitalia. Aedeagus as depicted in Fig. 49 .

Variability. Males are almost identical to the holotype. One of them, quite immature, has the crust abraded so the cuticle and its sculpture are clearly visible; its aedeagus is embedded in DMHF, and its apex appears less sharp than that of the holotype. The single female is very similar to the holotype, although its cuticle is slightly paler and the appendages are honey- -red; in addition the long setae on internal margin of metatibiae and the ventral impression are lacking.

Body length 2.6–2.7 mm.

Etymology. The species name, Latin adjective sordidus (- a, - um), meaning ‘dirty’, was chosen in reference to the earthy crust covering the cuticle of the new species.

Distribution. Endemic to Socotra Island.

Figures

Figs 40–47. 40, 42 – Mesoxenomorphus rugipennis sp. nov.: 40 – habitus of the holotype; 42 – aedeagus of a paratype in dorsal view. 41 – Mesoxenomorphus africanus Wollaston, 1873 from South Africa, Port Elizabeth, habitus. 44–45 – Mechistocerus inornatus sp. nov. 44 – habitus of the holotype; 45 – aedeagus of a paratype in dorsal view. 43, 46 – Sibinia caldaraedicata sp. nov.: 43 – aedeagus of a paratype in ventral view; 46 – habitus of the holotype.

Figs 47–52.47–49 – Parvorhynchus sordidus sp.nov., holotype:47 – habitus; 48 – habitus in side view;49 – aedeagus in dorsal view. 50 – Otiorhynchus (Namertanus) argus Reitter, 1896 from Abkhazia, habitus. 51–52 – Epactus hirticornis sp. nov.: 51 – habitus of the holotype; 52 – aedeagus of a paratype in dorsal view.