Histeromorphus nogedensis, Purchart, 2014

Purchart, Luboš, 2014, Revision of the genus Histeromorphus (Coleoptera: Tenebrionidae) from the Socotra Archipelago with descriptions of three new species *, Acta Entomologica Musei Nationalis Pragae 54, pp. 211-230 : 219-221

Histeromorphus nogedensis sp. nov.

( Figs 3 , 9, 15, 21 , 36–39, 54, 55)

Type locality. Yemen, Socotra Archipelago, Socotra Island, Noged plain, sand dunes near Sharet Halma vill., ca. 12°21.9ʹN, 54°05.3ʹE, 20 m a.s.l.

Type material. HOLOTYPE: J ( NMPC): YEMEN, SOCOTRA Island Noged plain (sand dunes), SHARET HALMA vill. env., 12°21.9ʹN, 54°05.3ʹE, 10.-11.xi.2010, J. Bezděk leg. PARATYPES: 1 ♀ ( NMPC), 2 JJ 4 ♀♀ ( LPCB): same data as holotype ; 1 spec. ( NMPC): YEMEN, SOCOTRA Island, Noged plain (sand dunes), SHARET HALMA vill. env., 12°21.9ʹN, 54°05.3ʹE, 20 m, Jiří Hájek leg., 10.-11.xi.2010 ; 5 spec. ( NMPC), 2 spec. ( BMNH), 1 spec. ( SDEI), 2 JJ 1 ♀, 6 spec. ( LPCB): YEMEN, SOCOTRA Island, Noged plain,ABATARO, border of sand dunes and shrubland, 12.-13.vi.2012, 12°22.1ʹN, 54°03.4ʹE, 20 m // SOCOTRA expedition 2012, J. Bezděk, J. Hájek, V. Hula, P. Kment, I. Malenovský, J. Niedobová & L. Purchart leg. ; 2 spec. ( NMPC), 1 J 1 ♀ ( LPCB): Yemen, Soqotra Is., 2003, 6-7.xii., Noged plain, wadi IREEH, 95 m, N12°23ʹ11ʺ E53°59ʹ47ʺ [GPS], David Král lgt. // YEMEN – SOQOTRA, 2003, Expedition ; Jan Farkač , Petr Kabátek & David Král .; 1 ♀, 2 spec. ( MCSC): YEMEN, Socotra Isl. , N12°20ʹ17.26ʺ, E053°59ʹ56.53ʺ, 10. ii. 2008, F. Pella lgt .; 1 J ( MCSC), 1 J ( LPCB): YEMEN, Socotra Isl. , Steroh, N12°21ʹ36.75ʺ, E053°55ʹ40.64ʺ, 11. x. 2007, F. Pella lgt .; 1 ♀ ( MCSC): same as previous but N12°21ʹ36.98ʺ, E053°55ʹ46.10ʺ ; 2 spec. ( MCSC): YEMEN, Socotra Isl. , Steroh, N12°21ʹ46.33ʺ, E053°55ʹ17.30ʺ, 10. ii. 2008, F. Pella lgt .; 1 ♀, 2 spec. ( MCSC): YEMEN, Socotra Isl. , N12°22ʹ07.25ʺ, E053°55ʹ52.79ʺ, 10. ii. 2008, F. Pella lgt .; 1 spec. ( MCSC): YEMEN, Socotra Isl. , Homaq, N12°19ʹ50.86ʺ, E053°59ʹ50.41ʺ, 10. ii. 2008, F. Pella lgt .; 1 ♀ ( MCSC): YEMEN, Socotra Isl. , Homaq, N12°20ʹ23.59ʺ, E054°01ʹ10.53ʺ, 10. ii. 2008, F. Pella lgt .; 1 J, 1 spec. ( MCSC), 1 ♀ ( LPCB): YEMEN, Socotra Isl. , Homaq, N12°20ʹ48.67ʺ, E054°01ʹ05.55ʺ, 11. x. 2007, F. Pella lgt .; 4 ♀♀ ( MNHN): Ile de SOCOTRA, Fevrier-1992, Canu Jean-Guy leg. // Muséum Paris, 2001, Coll. générale ; 1♀ ( MNHN):same as previous, nov-1997 ; 1 spec. ( SBCP), 1 J ( LPCB): SOCOTRA Isl. ( Yemen), NOGED MOKHAR, 31.iii.2001, lgt. V. Bejček + K. Šťastný ; 8 spec., 2 JJ ( SBCP), 2 JJ ( LPCB): SOCOTRA Isl. ( Yemen), NOGED, 12.-13.xi.2000, lgt. V. Bejček + K. Šťastný ; 1 spec., 1 J 1 ♀ ( SBCP), 1 J ( LPCB): SOCOTRA Isl. ( YEMEN), NOGHED, 27.ii.-1.iii.2000, lgt. Bejček + Šťastný ; 1 ♀ ( SMNS): YEMEN, Socotra Isl. , Dexam, Scant, 6.-24.ix.1999, V. Bejček & K. Šťastný lgt. // COLLECTION STANISLAV BEČVÁŘ ; 1 spec., 1 J ( SMNS): YEMEN W, Socotra Isl. , 6.-24.ix.1999, V. Bejček & K. Šťastný lgt .; 1 J ( SMNS): ZOOLOGISCHE EXKURSION, Samha , 2/1999, leg. Rösler ; 1 ♀ ( CWWR): same as previous but leg. Wranik; 1 J ( SMNS): Soqotra-Archipel : Samha, Aufstieg zum Plateau, 12°10 ʹN 53°01 ʹE, 240 m, 16.2.1999, leg.: H. POHL, SOQ 29 ; 1 spec. ( CWWR): Samha , 8.2.2000, leg. Wranik ; 2 JJ ( CWWR): Darsa , 10.2.2000, leg. Wranik.

Description. Body length 7.4–9.8 mm (holotype 7.5 mm). Body width 5.0–5.8 mm (holotype 5.4 mm). Black, dull, glabrous. Body broad, oval ( Fig. 3 ).

Head smooth, entire surface sparsely and finely punctate ( Fig. 9 ). Anterior margin of clypeus moderately sinuate. Entire clypeus finely punctate, frontoclypeal suture slightly indicated laterally.

Pronotum smooth, glabrous, impunctate. Sides of pronotum broadly rounded. Anterior corners nearly rectangular. Posterior corners obtuse-angled.

Elytra broad, with broadly rounded sides. Elytral surface glabrous, smooth, impunctate. Pseudopleura separated from elytra by elytral pseudopleural margin; the latter being incomplete, developed around apex of elytra and in anterior half of elytra, running from humeral angles obliquely downwards towards apex of elytra under rounded edge of elytra (when viewed from behind) and it is obliterated in posterior half of elytra ( Fig. 21 ).

Ventral part. Prosternum glabrous, smooth, impunctate. Prosternal apophysis as broad as procoxae, widened apically. Mesoventrite glabrous, smooth, slightly longer (in ventral view) than coxae. Metaventrite glabrous, smooth, as long (in ventral view) as coxae. Abdominal ventrites glabrous, smooth impunctate.

Legs. Profemur distinctly claviform ( Fig. 15 ), its anterior margin on ventral side strongly impressed forming distinctly keeled sharp carina running almost along entire length of anterior margin; entire posterior margin on dorsal part with row of long yellow setae.

Male genitalia. Aedeagus simple (Figs 36–39). Apical piece of tegmen subparallel, rapidly narrowing at apex, with long opening on ventral side; base of apical piece bisinuate and with distinct teeth. Basal piece widened towards base. Median lobe slightly S-like in basal half and strongly curved upwards (in lateral view) in apical half, almost rectangular.

Female genitalia. See Figs 54, 55.

Differential diagnosis. Histeromorphus nogedensis sp. nov. differs from other species (with the exception of H. carinatus sp. nov.) in having a keeled anterolateral profemoral margin, with a row of long yellow setae on the posterolateral profemoral margin and in the strongly recurved apex of the median lobe (in lateral view). From H. undatus , H. convexicostatus sp. nov. and H. plicatipennis it differs also in having a smooth elytral surface (transverse wavy lines in H. undatus , straight and strongly convex or zigzag and convex elytral interstriae in H. convexicostatus sp. nov. and H. plicatipennis , respectively). It has an incomplete pseudopleural margin, while it is complete and strongly developed and almost costate in H. undatus and H. convexicostatus sp. nov. and fine but complete in H. carinatus sp. nov., in which the pseudopleural margin runs along the elytral edge, while in H. nogedensis sp. nov. it runs obliquely downwards towards the elytral apex below the edge of elytra.

Etymology. Refers to Noged plain ( Socotra Island) where the major part of type specimens was collected; adjective.

Distribution. The new species is known from several localities in eastern Noged plain, south coast of Socotra Island, two localities on Samha Island and on Darsa Island. The only specimen with locality ‘Dexam, Scant’ seems to be wrongly labelled, as all specimens of the new species were observed exclusively on coastal part of the islands. See also H. plicatipennis where the same (wrong?) labelling occurred as well.

Figures

Figs 1–6. Habitus of Histeromorphus in dorsal view. 1 – H. carinatus sp. nov., holotype; 2 – H. convexicostatus sp. nov., holotype; 3 – H. nogedensis sp. nov., holotype; 4 – H. plicatipennis Waterhouse, 1881; 5 – H. plicatus Kraatz, 1865; 6 – H. undatus Gahan, 1900. Scale bar = 5 mm.

Figs 7–27. 7–12 – head in dorsal view. 13–18 – profemur in ventral view; white arrows indicate keeled anterior margin. 19–24 – pseudopleural margin in lateral view; ee – edge of elytra; pem – pseudopleural margin. 25–27 – elytral surface variability. 7, 13, 19 – Histeromorphus carinatus sp. nov., holotype; 8, 14, 20 – H. convexicostatus sp. nov., holotype; 9, 15, 21 – H. nogedensis sp. nov., holotype; 10, 16, 22 – H. plicatipennis Waterhouse, 1881; 11, 17, 23, 25–27 – H. plicatus Kraatz, 1865; 12, 18, 24 – H. undatus Gahan, 1900.