Atrocrates galbasi

Iwan, Dariusz, 2016, Species groups in the genus Atrocrates Koch, 1956 (Coleoptera: Tenebrionidae: Pedinini), Zootaxa 4175 (6), pp. 571-587 : 574-580

publication ID	https://doi.org/ 10.11646/zootaxa.4175.6.5
publication LSID	lsid:zoobank.org:pub:DD402425-F055-4CC9-B7BF-4710F4CA96CF
DOI	https://doi.org/10.5281/zenodo.6087554
persistent identifier	https://treatment.plazi.org/id/03A72351-FFB5-BB5A-B5E3-510C0E1A96CF
treatment provided by	Plazi
scientific name	Atrocrates galbasi
status

Treatment

G. galbasi -group

Diagnostic characters. Mid part of mentum narrowed anteriad; pronotal sides rounded; elytral humeri rectangular; male mid tibiae with denticle ( Figs 34–36 View FIGURES 31 – 38 , 43–45 View FIGURES 39 – 46 , 49–50, 52–53 View FIGURES 47 – 54 , 65–68 View FIGURES 63 – 70 ).

Species composition. A. galbasi sp. nov.; A. matthewsi sp. nov. Distribution ( Fig. 80 View FIGURES 74 – 81 ).

Atrocrates galbasi sp. nov. ( Figs 31–46 View FIGURES 31 – 38 View FIGURES 39 – 46 , 71, 73 View FIGURES 71 – 73 , 80 View FIGURES 74 – 81 )

Locus typicus. Toorberg (East Cape, Republic of Souh Africa) ( Fig. 73 View FIGURES 71 – 73 ).

Etymology. The species is named in honour of my friend Dr. Krzysztof Galbas, an outstanding Polish surgeon.

Diagnosis. A. galbasi is close to A. matthewsi due to elytral humeri shape (distinct, not protruding outwards, as in Figs 36 View FIGURES 31 – 38 and 53 View FIGURES 47 – 54 ), narrowed anterior part of mentum ( Figs 34 View FIGURES 31 – 38 and 50 View FIGURES 47 – 54 ), and male legs (fore tibia simple, with longitudinal depression on inner side, as in Figs 42 View FIGURES 39 – 46 and 64 View FIGURES 63 – 70 ; mid tibia with small apical denticle, as in Figs 43 View FIGURES 39 – 46 and 65 View FIGURES 63 – 70 ).

The species differ in the shape of pronotum—anterior angles sharp in galbasi , obtuse in matthewsi , cf Fig. 35 View FIGURES 31 – 38 and 52 View FIGURES 47 – 54 .

Description. Measurements. Body length 9.2–10.5 mm (holotype, male— 10.3 mm), pl/pb—0.7, el/eb—1.3, el/pl—2.0, eb/pb—1.0 (male), 1.1 (female).

Body dark brown to black ( Fig. 71 View FIGURES 71 – 73 ). Upperside of body moderately shiny; head, pronotum and elytral intervals sparsely and delicately punctate. Underside of body slightly shiny; prosternum smooth, episternum with shallow longitudinal wrinkles.

Head as in Fig. 31 View FIGURES 31 – 38 . Clypeus with shallow emargination (ew/ed—7.0). Genal canthus equal to eyes. Eye between tempus and genal canthus narrow (3–4 ommatidia visible), circumocular depression shallow ( Fig. 32 View FIGURES 31 – 38 ). Antenna moderately long (al/apl—0.8) and wide (al/was3—15), 3rd antennomere short (as3/as2—2.0), distal segments (antennomere 7–11) evenly widened ( Fig. 33 View FIGURES 31 – 38 ). Mentum and submentum as in Fig. 34 View FIGURES 31 – 38 . Last segment of maxillary palp moderately wide (mp/as3—1.3). Hipostoma near maxillary articulation simple.

Pronotum as in Fig. 35 View FIGURES 31 – 38 , sides rounded, widest at 1/3 from base; pronotal disc evenly convex, depressed near lateral border, with extremely fine puncturation, punctures 2–3 diameters apart; anterior angles sharp and moderately protruding anteriorly (pl/lapa—0.9); posterior angles right, not protruding beyond the level of the middle of base; pronotal base almost straight.

Scutellum wide at base (pkp/st—3.0).

Elytron composed of 9 distinct rows, striae punctato-sulcate with well visible punctures; intervals moderately flat with fine punctures, 3–4 diameters apart; basal margin almost straight; elytral humeri not protruding outwards ( Fig. 36 View FIGURES 31 – 38 ).

Prosternal process protruding posteriad, rounded at apex ( Fig. 37 View FIGURES 31 – 38 ).

Metaventrite ( Fig. 38 View FIGURES 31 – 38 ) between the insertions of mid and hind coxae very short (metl/cavl—6.0); metepisternum rectangle and short (ml/mw—3.5).

Legs, all tarsi in both sexes narrow; male fore tibia with longitudinal depression on inner side ( Figs 40–42 View FIGURES 39 – 46 ); male mid tibia widened, with small apical denticle ( Figs 43–45 View FIGURES 39 – 46 ); male hind tibia simple ( Fig. 46 View FIGURES 39 – 46 ).

Abdominal ventrites with delicate puncturation; bordering of the last abdominal ventrite distinct ( Fig. 39 View FIGURES 39 – 46 ); process of 1st abdominal ventrite narrow (pav/pm—1.6).

Female and male genitalia as in other species of Atrocrates .

Types. Holotype: male, deposited in DNMNH; “ S. Afr; E Cape; Toorberg E: 1522 m; 32.10 . S—24.02. E”, 22.11.2007; E-T: 3764; under stones; leg. Ruth Müller”. Paratypes: 3 males, 1 females (DNMNH), 2 male and 1 female (MIZPAN); “ S. Afr; E Cape; Toorberg E: 1522 m; 32.10 . S—24.02. E”, 22.11.2007; E-T: 3759; under stones; leg. Ruth Müller ”; 1 male ( DNMNH) “ S. Afr; E Cape ; Toorberg E: 1185 m; 32.10. S—24.05. E”, 25.11.2007; E-T: 3764; under stones; leg. Ruth Müller”;