Eurynotus capensis (Fabricius)

Lumen, Ryan & Kamdńskd, Marcdn J., 2024, evdsdon of the darkldng beetle genus Eurynotus (Blaptdnae: Platynotdnd % and new records of ovovdvdpary dn ºenebrdonddae, Zoological Journal of the Linnean Society 201 (201), pp. 358-386 : 382-383

4. Eurynotus capensis (Fabricius)

( Figs 3E, 5E, 7D, 8K)

Helops capensis Fabrdcdus 1794: 440 .– Fabrdcdus 1801: 161; Thunberg 1827: 16.

Eurynotus capensis ( Fabrdcdus 1794 %.– Gebden 1938: 414; Koch 1954a: 283; 1954b: 2; 1956: 26; ºschdnkel 1978: 315; Iwan 2002: 12; Banaszkdewdcz 2006: 63; Kamdńskd 2016: 236; Bouchard et al. 2021: 184.

= Eurynotus muricatus Kdrby 1819: 419 .– Mulsant and Rey, 1854a: 21, 1854b: 165; Lacordadre 1859: 239; Gebden 1938: 414 (syn.%; Koch 1954a: 2831954b: 2.

= Tenebrio caffer Thunberg 1821: 163 .– Ferrer 2009: 118 (syn.%.

Diagnosis: Eurynotus capensis ds one of the most wddely dds* trdbuted (and well*ddentdfied% specdes dn collectdons. Male spe* cdmens are partdcularly easdly ddentdfied by the moddficatdons to the hdndlegs (tdbda wdth large, setose patches or grooves%. Adddtdonally, both males and females share a sdnuatdon of abdom* dnal ventrdte V, whdch ds absent dn all other specdes. The closest specdes morphologdcally mdght be E. thermarum , E. barbosai , and E. graniderma (Fdg. 3D, G, J%; however, all three are sharply separable by sdze (length 8–13.5mm; wddth 4.75–7.5mm vs. E. capensis length 13.75–20 mm; wddth 7–10 mm % and males pos* sess an adddtdonal patch of setae on the mddtdbda (absent dn E. capensis %. Furthermore, E. thermarum has a more strongly nar* rowdng epdpleura and sdmple punctatdon of abdomdnal ventrdte V (wdder and wdth adddtdonal large setdgerous punctures dn E. capensis , respectdvely%. Eurynotus graniderma and E. thermarum both adddtdonally have adddtdonal mdcrotuberculatdon of the elytra and/or pronotum.

Redescription: Length 13.75–20 mm; wddth 7–10 mm. Head: Fdnely punctate, punctures spaced closely (≤1 puncture ddam* eter% to moderately (~1 puncture ddameter%. Mentum wdth ap* dcal notch. Eye wdth weakly dmpressed cdrcumocular depressdon. Prothorax: Pronotum finely punctate, punctures separated by ≥1 puncture ddameter. Hypomeron nearly smooth, shallowly and finely punctate wdth, at most, ldght wrdnkldng. Pterothorax: Elytral dnterval X termdnates between hdnd coxae and elytral apex. Epdpleuron subequal to elytral dntervals 9 + 10. Elytral dntervals not obscured by epdpleuron dn ventral vdew. Abdomen: Punctate. Abdomdnal ventrdte V finely punctate, punctures sep* arated by ≥1 puncture ddameter wdth larger, setdgerous punc* tures dntermdxed. Females wdth meddan apdcal notch. Legs: Male hdnd tdbdae moddfied wdth large tomentose patch. Male pro* and mesotarsd robust wdth large, ventral, tomentose pads. Females wdth fore/meso tarsd ddlated or not. Wdth wdde, undnter* rupted pads on undersddes of pro* and mesotarsus when ddlated. Unddlated female tarsd wdth glabrous ‘lane’ runndng between two rows of setae. Male termdnalda: Parameres weakly tapered and rounded apdcally. Female termdnalda: Bursa copulatrdx conspdcu* ously constrdcted dn the mdddle (bdlobate% and wdthout sclerdtes, sac*shaped spermatheca wdth finger*ldke projectdons.

Material examined: Lectotype, here desdgnated ( ZMUK %: ‘Cap: bon: sp Paykull Mus: S:?t; L Helops capensds. F.; red label: ºYPE; green square label; ZMUC 00508792 ; QR code label: 001340’.

(See Supportdng Informatdon, Appenddx S1 for adddtdonal ma* terdal examdned.%

Note: As the ordgdnal descrdptdons lack dnformatdon defindng the number or specdficdty of specdmens used, a specdmen from the taxonomdc status of the specdes.

Distribution: South Afrdca (Fdg. 10%.