Atrocrates matthewsi, Iwan, Dariusz, 2016

Iwan, Dariusz, 2016, Species groups in the genus Atrocrates Koch, 1956 (Coleoptera: Tenebrionidae: Pedinini), Zootaxa 4175 (6), pp. 571-587 : 580-584

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.6087556
persistent identifier	https://treatment.plazi.org/id/03A72351-FFBF-BB5E-B5E3-507E0EAA971F
treatment provided by	Plazi
scientific name	Atrocrates matthewsi
status	sp. nov.

Treatment

Atrocrates matthewsi sp. nov.

( Figs 47–70 View FIGURES 47 – 54 View FIGURES 55 – 62 View FIGURES 63 – 70 , 72, 73 View FIGURES 71 – 73 , 80 View FIGURES 74 – 81 )

Locus typicus. Graaff Reinet (South East Cape, Republic of South Africa) ( Fig. 73 View FIGURES 71 – 73 ).

Etymology. I’m pleased to dedicate this species to the distinguished coleopterist Dr. Eric G. Matthews (The South Australian Museum, North Terrace, Adelaide, SA, Australia).

Diagnosis. A. matthewsi is close to A. galbasi (see dignosis).

Description. Measurements. Body length 9.9–10.6 mm (holotype, male— 10.1 mm), pl/pb—0.7, el/eb—1.3, el/pl—1.9, eb/pb—0.95 (male), 1.00 (female).

Upper side of body mat, with a greasy sheen; head, pronotum and elytral intervals sparsely and delicately punctate ( Fig. 72 View FIGURES 71 – 73 ). Underside of body slightly shiny; prosternum smooth, episternum with shallow longitudinal wrinkles.

Head as in Fig. 47 View FIGURES 47 – 54 . Clypeus with shallow emargination (ew/ed—1.0). Genal canthus equal to eyes. Eye between tempus and genal canthus narrow (2–3 ommatidia visible), circumocular depression distinct, narrow ( Fig. 48 View FIGURES 47 – 54 ). Antenna moderately long (al/apl—0.8) and wide (al/was3—12), 3rd antennomere short (as3/as2—2.3), distal segments (antennomere 7–11) evenly widened ( Fig. 51 View FIGURES 47 – 54 ). Mentum and submentum as in Fig. 50 View FIGURES 47 – 54 . Last segment of maxillary palp moderately wide (mp/as3—1.4). Hipostoma near maxillary articulation simple ( Fig. 49 View FIGURES 47 – 54 ).

Pronotum as in Fig. 52 View FIGURES 47 – 54 , sides rounded, widest at 1/3 from base; pronotal disc evenly convex, depressed near lateral border, with extremely fine puncturation, punctures 3–5 diameters apart; anterior angles obtuse and moderately protruding anteriorly (pl/lapa—0.8); 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 rows, striae punctato-sulcate, shallow with fine punctures; intervals flat with fine punctures, 5–6 diameters apart; basal margin almost straight; elytral humeri rectangular, not protruding outwards ( Figs 53, 54 View FIGURES 47 – 54 ).

Prosternal process protruting posteriad, rounded at apex ( Fig. 55 View FIGURES 55 – 62 ).

Metaventrite ( Fig. 56, 57 View FIGURES 55 – 62 ) between the insertions of mid and hind coxae short (metl/cavl—4.5); metepisternum rectangle and short (ml/mw—3.2).

Legs, all tarsi in both sexes narrow; female legs as in Figs 59–62 View FIGURES 55 – 62 ; male fore tibia with longitudinal depression on inner side ( Figs 63, 64, 70 View FIGURES 63 – 70 ); male mid tibia widened, with small apical denticle ( Figs 65, 66, 68 View FIGURES 63 – 70 ); hind tibia simple ( Fig. 69 View FIGURES 63 – 70 ).

Abdominal ventrites with delicate puncturation ( Fig. 57 View FIGURES 55 – 62 ); bordering of the last abdominal ventrite distinct ( Fig. 58 View FIGURES 55 – 62 ); process of 1st abdominal ventrite narrow (pav/pm—1.9) ( Fig. 56 View FIGURES 55 – 62 ).

Female and male genitalia as in other species of Atrocrates .

Types. Holotype: male, deposited in DNMNH; “S. A. East Cape ; Graaff Reinet , 32”13’S/24”30’E; 29.11- 1.12.1996; leg ARNDT ” . Paratypes: 2 males and 3 females (DNMNH), 1 male and 1 female (MIZPAN) “S. A. East Cape; Graaff Reinet , 32”13’S/24”30’E; 29.11- 1.12.1996; leg ARNDT ”.