Ptinus (Gynopterus) bertranpetiti, Bellés & Csic-Upf, 2012

Bellés, Xavier & Csic-Upf, 2012, Ptinus bertranpetiti, a new species of spider beetle from Socotra Island (Coleoptera: Ptinidae), Acta Entomologica Musei Nationalis Pragae 52, pp. 219-222 : 220-221

Ptinus (Gynopterus) bertranpetiti sp. nov.

( Figs. 1–2 )

Ptinus sp. : BELLÉS 2009: 147.

Type material. HOLOTYPE: J ( NMPC), ‘ YEMEN Socotra Island Zemhon area , 270-350 m N12º30’58’’ E54º06’39’’ 3-4. ii.2010. L. Purchart & L. Vybíral lgt .’ PARATYPES: 1 ♀, same data as the holotype ( XBCB) ; 1 ♀, ‘Soqotra, Deksam Plateau, Schwarzlicht, 1020 m. 12º32’N 53º59’E, 22- 24.2.1999, leg.: H. Pohl, SOQ 37 (HMLD-Col- 1285)’( HLMD) .

Description ( Fig. 1 ). Body length: 2.5–3.3 mm; robust, parallel-sided; both sexes winged; cuticle in general brownish-piceous, head and pronotum piceous, antennae and legs brownish, and elytra brownish in basal, sutural and apical parts, and piceous in remaining, lateral parts. Head clothed with short, yellowish, soft and recumbent pubescence covering most of surface, and with short, golden, hard and erect setae scattered over surface; eyes convex, semispherical, with short, erect setae inserted between ommatidia, antennae relatively slender and moderately long, longer than half length of body. Pronotum somewhat longer than wide, with transverse constriction behind disc; sculpture of the anterior third formed by irregular excavations, and that of disc and posterior third formed by round, well delimited granulations; pubescence composed by long, golden setae, erect and scattered over all surface, and short, soft, recumbent pubescence covering most of surface. Scutellum subtriangular, covered by whitish soft and recumbent pubescence. Elytra long, 1.3 times longer than wide; sides subparallel, only slightly rounded; humeri obtuse; elytral punctures as broad as intervals, pubescence of three types: 1st) golden setae, semierect and inserted in intervals, longer than the length of three punctures; 2nd) yellowish setae, semierect and inserted in punctures, shorter than the length of three punctures; and 3rd) short and soft, recumbent pubescence practically covering entire elytra, densely aligned in rows. All five abdominal sternites perfectly delimited, with suture lines well apparent. Aedeagus ( Fig. 2 ) with median lobe somewhat shorter than parameres, which are subsymmetrical and slender, with apex blunt and showing scattered setae, especially at external sides.

Sexual dimorphism. The female, compared to male, is somewhat more robust, with eyes less convex, antennae a bit shorter and elytral disc slightly more convex.

Etymology. The new species is dedicated to my friend Jaume Bertranpetit, to commemorate (on 29 February 2012) his 60th birthday.

Figures

Figs. 1-2. Ptinus bertranpetiti sp. nov. 1 – habitus of the female; 2 – aedeagus.