Eurynotus barbosai Koch
Creators: name: Lumen, Ryan
name: Kamdńskd, Marcdn J.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Copepoda
Cyclopoida
Eunicicolidae
Eurynotus
Eurynotus barbosai

description: 3. Eurynotus barbosai Koch
(Figs 3D, 7A, 8J)
Eurynotus (Eurynotus) barbosai Koch 1954a: 284.– Koch 1956: 27; Kamiński 2016: 236.
Diagnosis: Eurynotus barbosai is most similar to E. thermarum and E. graniderma.All three species are differentiable from other congeners by size as they are the smallest (length 8–10 mm; width 4.75–7.5 mm) group within Eurynotus. Additionally, these species (along with E. capensis) possess distinct modifications to the male mid - and/or hindlegs (small setose excavations on the tibiae). Eurynotus barbosai is sharply separable from the most similar species (E. thermarum and E.graniderma) by the cuticular surface (shining and relatively smooth in E. barbosai versus dull and microtuberculated in the other two) and with additional micropunctation in the inter - stices between punctures (E. thermarum and E. graniderma instead with microtuberculation, or without additional specific intersti - tial structures, respectively). Additionally, while all three species are localized around north–north -eastern South Africa, Eurynotus barbosai is, as of this revision, the only species with a distribution east of Eswatini and into Mozambique.
Redescription: Length 9–10mm 5–5.5 mm. Head: Punctures sep - arated by ≥1 puncture diameter. Mentum without apical notch. Eye with deeply impressed sulcus around margin. Prothorax: Pronotum smooth, shiny, and finely punctate; larger punctures sep - arated by ≥1 puncture diameter with micropunctures in interstices. Hypomeron shallowly and coarsely punctate; lightly sculptured/ wrinkled. Pterothorax: Elytral interval X terminating between hind coxae and elytra apex. Epipleuron wider than width of elytral intervals 9 + 10. Elytral intervals obscured by epipleuron in ventral view.Dorsally shining and without microtuberculation. Abdomen: Punctate. Abdominal ventrite V finely punctate, punctures separ - ated by ≥1 puncture diameter without larger, setigerous punctures intermixed and without micropunctation. Females without me - dian apical notch. Legs: Male mid - and hindlegs with setose patch or groove on tibiae. Female legs unmodified. Tarsi with golden setae. Males: pro/meso tarsi expanded with large, ventral, tomen - tose pads. Male terminalia: Parameres broad and parallel, truncate at apex with small divot made by medially inflexed parameres. Female terminalia: Bursa copulatrix sac -like and without sclerites, spermatheca thick and coiled, accessory gland and accessory pouch present.
Material examined: Holotype (TMNH): ‘Lour, Marques Jan. Rev. H.A, Junod; 3864; Eurynotus sp ign.; Holotype No: 1849 Eurynotus barbosai KOCH’.
Additional Material: TMNH: ‘ Marracuene’, ‘SOUTH AFRICA, NATAL Ndumu Game Reserve 26.54S 32.15E, 05–07.xi.1984. R. Oberprieler’.
Distribution: Mozambique and South Africa (Fig. 10).
description: Published as part of Lumen, Ryan & Kamdńskd, Marcdn J., 2024, evdsdon of the darkldng beetle genus Eurynotus (Blaptdnae: Platynotdnd % and new records of ovovdvdpary dn ºenebrdonddae, pp. 358-386 in Zoological Journal of the Linnean Society 201 (201) on page 382, DOI: 10.1093/zooldnnean/zlad146, http://zenodo.org/record/13315269