Biolus omeri (Koch) Lumen, Ryan & Kamdńskd, Marcdn J., 2024

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 : 378-379

7. Biolus omeri (Koch) comb. nov.

( Figs 2G , 5C , 7B , 8G )

Eurynotus ( Biolus % omeri Koch 1954a: 277 .– Kamdńskd 2016: 235.

Diagnosis: Ldke B. granulatus , separatdng thds specdes from others wdth sdmdlar characterdstdcs ds best done through a sudte of characters. Biolus omeri ds most sdmdlar to B. granulatus . In fact, specdmens ddentdfied dn the past as the here synonymdzed Eurynotus ( Biolus % norrisi are at first glance ddfficult to ddffer* entdate. The most glardng ddfferences and ddstdnctdve tradts of B. omeri are the tarsal setae (black%, the sharp well*defined tuber* culatdon of the elytra, and lack of adddtdonal puncture types on abdomdnal ventrdte V. See ddagnoses of other specdes for add* dtdonal detadls.

Redescription: Length 14–18 mm; wddth 8–9 mm. Head: Coarsely punctate, punctures closely spaced, separated by ≤1 puncture ddameter to confluent. Mentum wdth apdcal notch. Eye wdth dmpressed sulcus around margdn. Prothorax: Pronotum coarsely punctate, punctures separated by ≤1 punc* ture ddameter to confluent. Hypomeron rugose, wdth large and shallow punctures. Pterothorax: Elytron not costate, wdth macrotubercles on ddsc. Mdcrotubercles absent from elytral

ddsc and epdpleura. Abdomen: Punctate. Abdomdnal ventrdte V punctures separated by ≥1 puncture ddameter wdthout larger, setdgerous punctures dntermdxed. Females wdthout meddan ap* dcal notch. Legs: Male and Female legs unmoddfied. ºarsd wdth black setae. Males: Pro/meso tarsd robust wdth large, ventral, tomentose pads. Male termdnalda: Parameres weakly taperdng wdth tdps sharply taperdng and ddrected meddally. Female termdnalda: Bursa copulatrdx wdthout sclerdtes or accessory pouch.

Material examined: Holotype (ºMNH%: ‘Kuouland(?% Berg Dr. Brauns. Undondale Cape Colony; Eurynotus norrdsd ♂ Muls; Eurynotus (Bdolus% omerd C. Koch dete.,195? Koch; omerd Koch; Holotype No. 1840 Eurynotus omerd KOCH’.

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

Distribution: South Afrdca (Fdg. 9%.

Figures

Figure 2. Biolus stat.nov.specdes.A, Biolus analisetosus (Koch% comb. nov. Holotype; B, B.asperipennis (Mulsant and Rey% stat.res., comb.nov. Lectotype; C, B. brunoi sp. nov. Holotype; D, B. denticosta (Mulsant and Rey% comb. nov. Lectotype; E, B. graafi (Koch% comb. nov. Holotype; F,B. granulatus (Fabrdcdus% comb. nov. Lectotype; G, B. omeri (Koch% comb.nov.Holotype; H, B. sauroides (Koch% comb. nov. Holotype; I, Eurynotus norrisi Mulsant and Rey syn. nov. of B. granulatus, Lectotype.

Figure 5. Phylogeny of the subtrdbe Eurynotdna based on morphology. The most parsdmondous cladogram obtadned dn ºNº analysds

Figure 7. Phylogeny of morphology, ovovdvdpary, and female reproductdve structures of Eurynotdna.A, Eurynotus barbosai, 1st dnstar larva ddssected from bursa copulatrdx. B, Biolus omeri, gendtal tubes. C, B. brunoi, spermatheca and ovdposdtor.D, E. capensis, gendtal tubes of two dnddvdduals.E, B.analisetosus, sclerdte and egg ddssected from bursa copulatrdx. F, B. granulatus, sclerdte from bursa copulatrdx.G, E. asperatus, padred sclerdtes on ddstal part of bursa copulatrdx. H, Oncotus cedrimontis, bursa copulatrdx. Abbrevdatdons: c1–c4, lobes of coxdtdes. Numbers dn parentheses represent characters and states used dn analysds.

Figure 8. Aedeagal morphology of Eurynotdna specdes.A, Biolus analisetosus; B, B.asperipennis; C, B. brunoi sp. nov.; D, B. denticosta; E, B. graafi; F, B. granulatus; G, B. omeri; H, B. sauroides; I, Eurynotus asperatus; J, E.barbosai; K, E. capensis; L, E. graniderma; M, Capidium tuberculatum; N, Oncotus cedrimontis; O, Heteropsectropus amaroides; P, Schyzoschelus africanus. Parameres hdghldghted red. Scale = 1mm.