Platyderus (Eremoderus) chatzakiae, Guéorguiev & Wrase & Assmann & Muilwijk & Machard, 2022

Gueorguiev, Borislav, Wrase, David W., Assmann, Thorsten, Muilwijk, Jan & Machard, Patrice, 2022, Taxonomic revision of the African and Southwest Asian species of Platyderus Stephens, subg. Eremoderus Jeanne (Coleoptera, Carabidae, Sphodrini), Deutsche Entomologische Zeitschrift 69 (1), pp. 71-122 : 71

1. Platyderus (Eremoderus) chatzakiae sp. nov.

Figs 1A , 7A , 8A , 10A , 12A , 16

Type locality.

Greece, Kalymnos Island, Stimenia Cave.

Note on type locality.

The Stimenia Cave is situated in the northeastern part of the Vathi Valley, in an area called St. Nikolas, on the Kalymnos Island, belonging to the Dodecanese.

Type material.

Holotype ♂, ʻ 8422, KALYMNOS Stimenia, end / road st18 9/6/2005, Lg Chatzaki’ (NHMC).

TME: 1 specimen. TGE: 1♂.

Etymology.

Latinized eponym based on the surname of Maria Chatzaki (Democritus University of Thrace, Komotini, Greece), a Greek arachnologist, who collected the holotype.

Diagnosis.

P. chatzakiae sp. nov. differs from P. weiratheri in wider body (BW: 2.85 mm, vs. 2.35-2.60 mm), more coarsely punctate disc of head (vs. finely punctate or nearly smooth disc of head), anterior elytral discal puncture situated in midst of interval 3 (vs. anterior discal puncture adjoining stria 3), and elytra both in relation to elytra width narrower (EL/EW= 1.60, vs. 1.63-1.71) and in relation to pronotum length shorter (EL/PL= 2.49, vs. 2.55-2.83).

Description.

Habitus. Large size for Platyderus species (BL: 8.05 mm; BW: 2.85 mm), with elongate, moderately convex body (Fig. 1A ). Measurements and ratios. See Table 1 . Color and lustre. Body dorsally and ventrally red-brown, head, pronotum and ventral surface slightly darker than elytra, appendages (antennae, palpi and legs) and elytral epipleura slightly lighter than elytra. Head, pronotum, and ventral surface rather shiny, elytra much less shiny. Microsculpture and punctation. Pronotum without regular microreticulation even on anterolateral and posterolateral parts. Elytral intervals, scutellum and basal margin with distinct isodiametric sculpticells; lateral gutter without microsculpture. Ventral surface with scarcely-visible isodiametric sculpticells (proepisternum) or with sculpticells slightly transverse (abdominal ventrites at sides) to not apparent. Head punctate and wrinkled on disc and posterior part of clypeus, labrum impunctate, without wrinkles, anterior part of clypeus and vertex sparsely punctate, without wrinkles. Pronotum coarsely and densely punctate in basal part and laterally, finely and sparsely punctate on disc and anterior part medially. Elytra with scanty micropunctation. Abdominal ventrite 1 moderately wrinkled, ventrites 2-6 smooth. Head. One-third narrower than pronotum wide (PW/HW= 1.34). Eyes almost flat. Labrum subrectangular, as long as clypeus, with anterior margin rather concave. Frontoclypeal suture distinct in middle, indistinct at sides. Frontal furrows subfoveolate, shallow. Paraorbital sulci straight, moderately deep, ended posteriorly after level of posterior margin of eye and slightly before level of posterior supraorbital pore. Thorax. Pronotum slightly wider than long (PW/PL= 1.19), with widest point at second quarter. Anterior and posterior transverse impressions slightly distinct medially, lacking laterally. Sides sinuate, convex medially and anteriorly, slightly concave posteriorly; anterior border distinctly beaded laterally, indistinctly in medial 1/15; posterior margin finely beaded. Metepisternum as long as wide, MA/MI= 0.97-1.03. Elytra. Elongate, less than one and two thirds as long as wide (EL/EW= 1.60), two and a half times as long as pronotum (EL/PL= 2.49), and about a third as wide as pronotum (EW/PW= 1.31), with widest point at medial third. Parascutellar striole and striae well-impressed, slightly punctate; parascutellar striole short, not joining stria 1; striae 1-3 (and 4 on right elytron) reaching basal bead, 5-7 not reaching it. Interval 3 with three discal setiferous punctures on left elytron and two on right elytron, first pair of large, foveolate punctures in midst of interval 3, second pair of smaller, punctiform punctures adjoining stria 2, third pair of punctures lack, instead an additional large, foveolate puncture present in midst of interval 3 of left elytron between first and second punctures. Umbilicate setiferous series with 17 punctures on left elytron and 16 punctures on right elytron. Legs. Posterior side of profemur with one seta in basal third and one seta in medial third. Anterior side of left mesofemur ventrally with five, right one with four equidistant setiferous punctures. Anterior side of metafemur ventrally with two long setae, one in basal third and one in medial third. Male genitalia. Urite IX suboval, with proximal margin slightly asymmetrical and pointed (Fig. 7A ). Median lobe of aedeagus in lateral view, with short basal bulb, long and broad shaft moderately constricted proximally, and a short, straight apex; median lobe in ventral view straight, about 3.5 times longer than wide; apical lamella (dorsal view) short, symmetrical, subacuminate at tip, with sides straight. Internal sac in lateral view (Fig. 8A ) with ventral sclerite partly visible (as a short plate); same in ventral view (Fig. 10A ), with dorsal sclerite situated proximally and surrounding ventral sclerite from behind, ventral sclerite obliquely situated, broadened distally. Right paramere less concave ventrally (Fig. 12A ). Female genitalia. Unknown.

Habitat.

The holotype was collected in a pitfall trap that was set (3 May-9 June 2005) at the end of a street leading to Stimenia Cave, west of Vathys Village (Maria Chatzaki pers. comm.). The habitat where the specimen was found consists of a homogenous degraded phrygana (Mediterranean open scrubland and grass community at low altitude). Approximate GPS coordinates of the location are: 36.9975 26.9607.

Distribution.

Kalymnos Island (Greece, Dodecanese; Fig. 16 ).

Figures

Figure 1. Dorsal habitus. A. Platyderus (Eremoderus) chatzakiae, sp. nov., holotype; B. P. (E.) weiratheri Maran, 1940, lectotype and its labels; C. P. (E.) felixi, sp. nov., holotype; D. P. (E.) iranicus, sp. nov., male paratype, Cheri pass 20 km W Samsami, Chahar Mahal va Bakhtiari Province, Iran; E. P. (E.) vanensis, sp. nov., holotype; F. P. (E.) vrabeci, sp. nov., holotype. Scale bars: 1 mm.

Figure 7. Urite, ventral view. A. Platyderus (Eremoderus) chatzakiae, sp. nov., holotype; B. P. (E.) weiratheri Maran, 1940, E: topotype male specimen; C. P. (E.) felixi, sp. nov., holotype; D. P. (E.) vrabeci, sp. nov., holotype; E. P. (E.) lassallei, sp. nov., holotype; F. P. (E.) ledouxi Morvan, 1974, male specimen, 10 km S Hasan Keif, Mazandaran Province, Iran; G. P. (E.) taghizadehi Morvan, 1974, male specimen, Tochal, Tehran Province, Iran; H. P. (E.) afghanistanicus, sp. nov., holotype; I. P. (E.) brunneus brunneus Karsch, 1881, male specimen, 50 km W of Ben Gardane, Medenine Governorate, Tunisia; J. P. (E.) brunneus ferrantei Reitter, 1909, male specimen, Holot Haluza, Southern District, Israel; K. P. (E.) jordanensis, sp. nov., holotype; L. P. (E.) languidus (Reiche & Saulcy, 1855), lectotype; M. P. (E.) languidus (Reiche & Saulcy, 1855), male specimen, Na ẖal Prat, Judea and Samaria Area, Israel; N. P. (Platyderus) sp., male specimen, Boz Daglar Mtn., Turkey; O. P. (P.) reticulatus (Chaudoir), male specimen, Tashehzeh, Nowshahr County, Mazandaran Province, Iran. Scale bars: 0.5 mm.

Figure 8. Median lobe of aedeagus, left lateral view. A. Platyderus (Eremoderus) chatzakiae, sp. nov., holotype; B. P. (E.) weiratheri Maran, 1940, lectotype; C. P. (E.) felixi, sp. nov., holotype; D. P. (E.) iranicus, sp. nov., holotype; E. P. (E.) vanensis, sp. nov., holotype; F. P. (E.) vrabeci, sp. nov., holotype; G. P. (E.) lassallei, sp. nov., holotype; H. P. (E.) ledouxi Morvan, 1974, male specimen, 10 km S Hasan Keif, Mazandaran Province, Iran; I. P. (E.) taghizadehi Morvan, 1974, male specimen, Tochal, Tehran Province, Iran; J. P. (Platyderus) sp., male specimen, vicinity of Izmir City, Turkey. Scale bars: 0.2 mm.

Figure 10. Median lobe of aedeagus, ventral view. A. Platyderus (Eremoderus) chatzakiae, sp. nov., holotype; B. P. (E.) weiratheri Maran, 1940, lectotype; C. P. (E.) felixi, sp. nov., holotype; D. P. (E.) iranicus, sp. nov., holotype; E. P. (E.) vanensis, sp. nov., holotype; F. P. (E.) vrabeci, sp. nov., holotype; G. P. (E.) lassallei, sp. nov., holotype; H. P. (E.) ledouxi Morvan, 1974, male specimen, 10 km S Hasan Keif, Mazandaran Province, Iran; I. P. (E.) taghizadehi Morvan, 1974, male specimen, Tochal, Tehran Province, Iran; J. P. (Platyderus) sp., male specimen, vicinity of Izmir City, Turkey; K. P. (P.) sp., male specimen, Boz Daglar Mtn., Turkey. Scale bars: 0.2 mm.

Figure 12. Right paramere, external face. A. Platyderus (Eremoderus) chatzakiae, sp. nov., holotype; B. P. (E.) weiratheri Maran, 1940, lectotype; C. P. (E.) felixi, sp. nov., holotype; D. P. (E.) iranicus, sp. nov., holotype; E. P. (E.) vrabeci, sp. nov., holotype; F. P. (E.) lassallei, sp. nov., holotype; G. P. (E.) ledouxi Morvan, 1974, male specimen, 10 km S Hasan Keif, Mazandaran Province, Iran; H. P. (E.) taghizadehi Morvan, 1974, male specimen, Tochal, Tehran Province, Iran; I. P. (E.) afghanistanicus, sp. nov., holotype; J. P. (E.) brunneus brunneus Karsch, 1881, male specimen, 50 km W of Ben Gardane, Medenine Governorate, Tunisia; K. P. (E.) brunneus ferrantei Reitter, 1909, male specimen, Holot Haluza, Southern District, Israel; L. P. (E.) jordanensis, sp. nov., holotype; M. P. (E.) languidus (Reiche & Saulcy, 1855), lectotype; N. P. (E.) languidus (Reiche & Saulcy, 1855), male paralectotype, " Syria ". Scale bars: 0.5 mm.

Figure 16. Distribution of species from subgenus Platyderus Eremoderus in the western Aegean Sea Region and Turkey: Platyderus chatzakiae sp. nov. (red circle), P. weiratheri (blue circles), P. vanensis sp. nov. (brown circles), and P. vrabeci sp. nov. (yellow circle).