Acinopus (Acinopus) sinaiticus, W & M, 2016

W, David & M, Boris, 2016, Four new species of genus Acinopus DEJEAN, 1821, subgenus Acinopus from southern Iran, from Sinai, and from western Saudi Arabia, and faunistic and taxonomic notes on species previously described (Coleoptera, Carabidae, Harpalini, Harpalina), Linzer biologische Beiträge 48 (2), pp. 1783-1806 : 1794-1797

Acinopus (Acinopus) sinaiticus nov.sp. ( Figs 2 , 7, 8 , 14 )

Acinopus laevigatus MÉNÉTRIÉS : PEYERIMHOFF 1907: 6

Acinopus laevigatus MÉNÉTRIÉS : SCHATZMAYR 1936: 76

Acinopus laevigatus MÉNÉTRIÉS : ALFIERI 1976: 21

Acinopus laevigatus MÉNÉTRIÉS : HOSNI et al. 2003: 561

T y p e m a t e r i a l: Holotype 6, labelled: "Sinai / ISRAEL / W[adi El]. Arbain / 4.IV.1974 / D.Furth" (TAU). Paratypes: 266, 1♀, labelled: "Sinai 2500 m / ISRAEL / Mt. Katherine / 8.IV.1974 / D.Furth" (TAU, ZIN, cWR). 1♀, labelled: " Acin. laevigatus Mén / Sinai: Dj. Safsafeh / 22.2.1902 " (handwritten by Peyerimhoff, species name in black, locality and date in red), "Bedel / vidit (handwritten in red by Peyerimhoff) (MNHN).

E t y m o l o g y: The specific epithet is a latinizid adjective, based on the name of the region in which this species was found.

D i a g n o s i s: A macropterous species of small to medium size for Acinopus with excision of dorsal edge of right mandible (subgenus Acinopus ), dark rufopiceous (in mature condition), with appendages somewhat lighter, labrum strongly incised at anterior margin, clypeus with one setiferous pore puncture at anterior angles, pronotum almost cordate with base rectilinear throughout, toward the posterior angles rectilinearly and anterior to posterior angles weakly sinuately narrowed, anterior angles acutely or more or less roundly protruding, posterior angles obtuse-angled, relatively narrowly rounded at tip, elytra cylindrical, somewhat flattened on disc, metepisternum slightly longer than wide. Pro- and mesotarsi in males distinctly widened. Apical lamella of median lobe moderately long, about somewhat elongate-triangular (dorsal view). Habitus see Fig. 2.

D e s c r i p t i o n: Body length in males 11.6-15.3 mm, in holotype 14.6 mm, in the female paratypes 13.2 and 15.1 mm; width in males 4.3-5.3 mm, in holotype 15.1 mm, in the female paratypes 5.6 mm and 5.9 mm.

Colour: Lighter to darker rufo-piceous or piceous also in mature condition (never completely black, if dark always with a piceous ground colour), appendages somewhat lighter.

Head: wide (as normal in Acinopus ), only somewhat narrower than pronotum (PW/HW in males 1.13-1.20, average 1.17, in holotype 1.13; in the female paratypes 1.16 and 1.20). Eyes small and relatively flat, tempora oblique, about three fourth as long as diameter of eye or somewhat shorter (dorsally seen), rectilinearly converging to neck. Frontal fovae mostly small and shallow, sometimes elongately prolonged backwards. Disc smooth. Excision of dorsal lateral edge of right mandible relatively small, almost semicircular, relatively close to base of mandible, proximal (basal) angle of excision situated somewhat anterior to level of anterior margin of clypeus (with mandibles closed). Labrum strongly and angulately incised at anterior margin, clypeus weakly, somewhat angulately incised, with anterior angles with one setiferous pore puncture each. Mentum tooth small, submentum with one long and one to three short, fine setae laterally each side.

Pronotum ( Fig. 2 ): Transverse, almost cordate (PW/PL in males 1.47-1.57, average 1.53, in holotype 1.55; in the female paratypes 1.54 and 1.61), widest at about end of anterior third, there lateral seta inserted. Disc convex, area of posterior angles more or less strongly flattened, anterior and posterior transverse impressions very shallow or only indicated, median line indistinctly impressed, terminated anterior to transverse impressions and hardly reaching basal margin. Basal foveae short, elongate, distinctly converging basad, shallowly or more strongly impressed. Anterior margin a little wider than posterior margin, only weakly, somewhat angulately excavate, anterior angles moderately projecting forward, relatively widely rounded at tip. Lateral gutter narrow, somewhat widened toward anterior angles. Sides moderately curved apicad, basad from widest point almost rectlinearly, and anterior to posterior angles weakly sinuately narrowed. Posterior angles distinct, obtuse-angled, relatively narrowly rounded at tip. Base rectilinear throughout or between the basal foveae very weakly excavate.

Elytra ( Fig. 2 ): Longer or shorter cylindrical (EL/EW in males 1.48-1.58, average 1.52, in holotype 1.52; in female paratypes 1.41 and 1.55), hardly or only somewhat wider than pronotum (EW/PW in males 1.06-1.15, average 1.10, in holotype 1.10; in female paratypes 1.09 and 1.17). On disc somewhat flattened, humeri distinctly developed, widely rounded at tip, or with a suggested angle meeting the lateral margin, without humeral tooth; toward behind somewhat convexely or almost parallely enlarged, widest somewhat behind middle. Basal bead weakly sinuate, arcuately curving inside humerus and weakly angled or round towards lateral margin. Scutellar pore puncture present, scutellar stria long. Striae fine, smooth, intervals flat on disc, becoming convex toward elytral declivity, interval 3 without pore puncture (holotype and one paratype), or with pore puncture (three paratypes) at about beginning of apical fourth close to stria 2. Interval 5 with one to two pore punctures apically (in one female paratype lacking), interval 7 with two to four pore punctures apically. Preapical sinuation weak.

Hindwings: Completely developed (folded anterior to apex).

Ventral surface: Prosternum and apex of prosternal process with long setae, proepisternum and anterior part of mesepisternum with sparse, fine setae, metepisternum and metasternum (laterally) with sparse, coarse seta-bearing punctures. Metepisternum relatively long, ratio of anterior margin/internal margin (visible parts) about 0.71, moderately narrowed behind. Abdominal sternites III-V with scattered setae of unequal length.

Last sternite, beside some fine scattered setae with two pore punctures bearing a long seta on each side at apical margin in both sexes.

Legs: Normal for Acinopus species. Pro- and mesotarsi distinctly widened in males (about as strong as in A. laevigatus ), with pro- and mesotarsomere 2-4 with biseriate adhesive vestiture. Ventroapical tubercle of protibia with about four to five spines, arranged in a transverse row. Eight to ten spines on lower surface of protibia arranged in one row. Outer distal margin of fore tibia with six to eight spines. Tarsi smooth on superior surface except obligatory setae.

Microsculpture of surface: Head with weakly engraved somewhat irregular isodiametric meshes, pronotum and elytra with somewhat irregular slightly transverse meshes, somewhat more strongly engraved and more confused as on head, surface very shiny, in females meshes somewhat stronger engraved, surface less shiny.

Median lobe of aedeagus ( Figs 7, 8 ): Of normal construction for Acinopus species. Middle and apical part somewhat bent to the left, terminal lamella wide and flat, somewhat elongate-triangular (dorsal view), and somewhat reflexed apically (lateral view), internal sac with a small, elongate group of about ten medium-sized spines.

Female genitalia ( Fig. 14 ): Hemisternite asymmetrical, with numerous scattered setae in its internal, somewhat hyaline part. Gonocoxite 1 elongate, apically with numerous setae, gonocoxite 2 scoop-shaped, apically somewhat blunt, with a double-sensilla in a furrow, and with numerous fine long setae at concave side.

I n t r a s p e c i f i c v a r i a b i l i t y Though the material is small, at least a statement can be made concerning the body size (varies from 11.6-15.3 mm), the construction of the pronotal base (rectilinear throughout or between the basal foveae very weakly excavate), and of basal foveae (shallowly or more distinctly impressed). The elytra are longer or shorter cylindrical with interval 3 lacking pore puncture or with pore puncture at about beginning of apical fourth close to stria 2, and with interval 5 with one to two pore punctures apically or these pore punctures lacking.

C o m p a r i s o n s: Similar in its colour to A. orszuliki nov.sp., but different in having pro- and mesotarsomeres distinctly enlarged, the labrum distinctly incised apically, the anterior pronotal angles not as strong and less acutely projecting forward, the pronotal base more or less rectilinear, the pronotum anterior to the posterior angles laterally somewhat sinuate, the elytra somewhat flattened, and the hind wings fully developed (folded anterior to apex), and the metepisterna longer.

The species is distinguishable from A. picipes and A. laevigatus by its dark rufopiceous colour, the pronotum anterior to the posterior angles somewhat sinuate and with posterior angles distinctly angled, the elytra somewhat flattened, from A. picipes additionally by having the clypeal anterior angles with only one setiferous pore puncture each (in A. picipes as a rule with two setiferous pore punctures each).

H a b i t a t: Nothing is known about biotope and circumstances of collecting, but it can be supposed that the members of this species live under stones on moist soil with vegetation.

D i s t r i b u t i o n: Up to present only known from Egypt from some localities in the Mount Sinai near the town of Saint Catherine.

R e m a r k s: There is only one species of Acinopus recorded from Egypt (in fact from

the Sinai Peninsula) with the name A. laevigatus MÉNÉTRIÉS, 1832 ( PEYERIMHOFF 1907: 6, mentioned the locality "Djebel Safsafeh, vers. 1800", based on his own finding, obviously only one specimen, which we could examine, see " Type material"). SCHATZMAYR (1936: 76) and HOSNI et al. (2003: 561) refered on PEYERIMHOFF (l. c.). ALFIERI (1976: 21), beside the reference on PEYERIMHOFF (l. c.) added a second locality: Wadi El Lega (which is identic with Wadi el Arbain). Without doubt, the species mentioned as A. laevigatus by ALFIERI also refers on A. sinaiticus nov.sp.

Figures

Figs 1-4: Acinopus DEJEAN, 1821. Habitus. (1) A. orszuliki nov.sp. (male paratype, type locality). (2) A. sinaiticus nov.sp. (male paratype, Mt. Katherine). (3) A. brittoni nov.sp. (female paratype, type locality). (4) A. arabicus nov.sp. (male paratype, type locality).

Figs 5-8: Acinopus DEJEAN, 1821. Median lobe of male. (5, 6) A. orszuliki nov.sp. (5) Lateral view (holotype). (6) dorsal view (paratype, type locality). (7, 8) A. sinaiticus nov.sp. (7) Lateral view (holotype). (8) dorsal view (paratype, Mt. Katherine). Scale bar: 1.6 mm.

Figs 13-16: Acinopus DEJEAN, 1821. Female genitalia, (right hemisternite, gonocoxite1, 2, ventral view). (13) A. orszuliki nov.sp. (paratype, type locality). (14) A. sinaiticus nov.sp. (paratype, Mt. Katherine). (15) A. brittoni nov.sp. (paratype, type locality). (16) A. arabicus nov.sp. (paratype, type locality). Scale bar: 1.0 mm.