Tuberates pustulatus, 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 : 382-384

Tuberates pustulatus sp. nov.

( Figs 100–102 )

Type material. HOLOTYPE: J ( NMPC), ‘ Yemen, Socotra Island // Hagher Mts. , Skant, // N 12°34.557″, E 54°01.514″ // V. Hula & J. Niedobová leg. // 7-8.vi.2010 ’. PARATYPES: 7 JJ 7 ♀♀, same label data of holotype (8 NMPC, 2 BMNH, 5 ECRI) ; 1 ♀, ‘ Yemen, Socotra Island // Al Haghier Mts. //, Skant Mt. env. // 12°34.6′N, 54°01.5′E // J. Bezděk leg. // 12-13.xi.2010 ’ ( NMPC) ; 1 J 1 ♀, ‘ Yemen, Socotra Island // Al Haghier Mts. Skant Mt. env. // pitfall trap // 12°34.6′N, 54°01.5′E, 1450 m // 1.ii.-13.xi.2010, L. Purchart leg.’ ( NMPC) ; 1 ♀, ‘ Yemen, Socotra Island // Al Haghier Mts. //, Skant Mt. env. // 12°34.6′N, 54°01.5′E // Jiří Hájek leg. // 12-13.xi.2010 ’ ( NMPC) ; 1 J 1 ♀, ‘ Yemen, Socotra // Al Haghier Mts. // Scant Mt. env. 1450 m // 12°34.6′N, 54°01.5′E // 12-13.xi.2010, P. Hlaváč’ ( NMPC) ; 2 JJ 3 ♀♀, ‘ Yemen, Socotra Island, // Hagher Mts. , Scand Mt. env. // montane evergreen woodland // 16-18.vi 2012 // 12°34.6′N, 54°01.5′E, 1450 m’, ‘Socotra expedition 2012 // J. Bezděk, J. Hájek, V. Hula, // P. Kment, I. Malenovský, // J. Niedobová & L. Purchart leg.’ (4 NMPC, 1 ECRI) ; 1 ♀, ‘ Yemen, Socotra Island, 18.vi // Hagher Mts. , wadi Madar, 2012 // montane shrubland with // Cephalocroton socotranus // 12°33.2′N, 54°00.4′E ,

1170 m’, ‘ Socotra expedition 2012 // J. Bezděk, J. Hájek, V. Hula, // P. Kment, I. Malenovský, // J. Niedobová & L. Purchart leg.’ ( NMPC).

Description. Male holotype. Body length 6.0 mm. Piceous, antennae, apex, apical comb of tibiae and tarsi honey-red. Dorsal surface of head and pronotum densely covered by subrecumbent intermingled oval, lanceolate and hair-like brownish, dirty yellowish and golden scales, which on pronotal disc are arranged in kind of ‘waves’ on its unequal surface; elytra with slightly erect embricate primarily golden and with some brownish round scales in addition to some suberect capitate whitish scales on tubercles forming vague pattern of Fig. 100 . Ventral side with recumbent dense elongate golden-yellowish scales on middle of prosternum and mesoventrite and on sides of abdominal ventrites in addition to semierect very long hair-like scales particularly dense on middle of metaventrite and ventrites; similar scales are on coxae ( Figs 100–101 ).

Head. Rostrum 0.93 times as long as wide, sides slightly diverging forward, scrobes weakly protruding. Epifrons slightly concave, at its narrowest point half as wide as interocular distance, sides converging to antennal insertion and somewhat keeled, dorsum with weak longitudinal carina. Epistome U-shaped, smooth, and with thin carina behind. Antennae slender; scape almost straight and moderately clubbed at apex; funicular antennomere I about one half shorter and not broader than II, antennomeres III and VII slightly longer than IV to VI, all clearly longer than wide; club fusiform and slightly shorter than three preceding antennomeres. Head large, space between eyes slightly depressed and sulcate. Eyes quite small, subconically moderately convex.

Pronotum 0.96 times as long as wide, widest shortly apicad of middle, barely convex dorsally, sides rather strongly and subangularly rounded, apex slightly convex, base truncate and of about same width of apex; disc with four rather large shallow impressions on each side of midline which shows a large very shallow depression at its centre, on lateral sides quite regularly punctured.

Elytra subrectangular, 1.44 times longer than wide, 1.63 times as wide as pronotum, maximum width at level of tubercles on basal quarter, almost flat on disc, apical declivity abruptly and subperpendicularly sloping, base concave, sides strongly widening and almost straight from base to protruding tubercles of interval IX placed at basal quarter, gently curved and undulate because of tubercles up to narrowly rounded apex. Striae not very regular, formed by rather large punctures. Intervals slightly wider than striae, their surface uneven, odd ones with series of unequal conical tubercles with blunt apex, suture with some weak tubercles on declivity.

Legs moderately elongate; femora moderately clubbed; protibiae rather strongly curved inwards at apical quarter and with some acute granules on which is inserted honey-coloured thin seta, granules becoming stronger on meso- and particularly metatibiae, all tibiae with rather acute mucro at apex of inner margin; tarsi robust.

Ventral side. Metaventrite and abdominal ventrites I and II with shallow common median depression.

Variability. Paratypes are essentially similar to the holotype. Females have elytra more convex and broader, tibiae less curved inwards, and lack abdominal impressions. The colour varies a little from almost brownish to more or less golden-brown.

Male genitalia. Aedeagus as depicted in Fig. 102 .

Body length 6.3–8.1 mm.

Etymology. The species name, Latin adjective pustulatus (- a, - um) meaning ‘blistered’, is in reference to the ‘pimpled’ elytra of the new species.

Collection circumstances. Few specimens were found at night on Leucas hagghierensis Gifri & Cortés-Burns (Lamiaceae) ; other specimens were sifted from leaf litter in montane evergreen woodland on the highest parts of the Hagher mountains (J. Hájek, pers. comm.).

Distribution. Endemic to Socotra Island.

Figures

Figs 98–102. 98–99 – Systates spinipennis sp. nov., holotype: 98 – habitus; 99 – habitus in side view. 100–102 – Tuberates pustulatus sp. nov.: 100 – habitus of the holotype; 101 – habitus of the holotype in side view; 102 – aedeagus of a paratype in dorsal view.