Published August 19, 2024 | Version v1
Taxonomic treatment Open

Ommatidiotus Spinola 1839

  • 1. Laboratory of Systematic Entomology, Department of Applied Biology, College of Agriculture & Life Sciences, Chungnam National University, Daejeon, Republic of Korea & Department of Smart Agriculture Systems, College of Agriculture & Life Sciences, Chungnam National University, Daejeon, Republic of Korea

Description

Genus Ommatidiotus Spinola, 1839

Type species: Ommatidiotus dissimilis (Fallén, 1806) (= Issus dissimilis Fallén, 1806).

Ommatidiotus Spinola, 1839: 365; Fieber, 1875: 362; Metcalf, 1958: 90; Emeljanov, 1999: 66.

Diagnostic characters. This genus distinguished by forewings with CuP ending at the apex of clavus (Figs 1A– B). Hind wings with M 2 and CuA 1; rm and mcu absent. First and second metatarsomeres are nearly equal in length (Fig. 1C). Aedeagus with hook- and tooth-shaped processes (Figs 7C; 11C) (Gnezdilov, 2011). See original descriptions for Spinola (1839) also.

Ecology. This genus is known to use acoustic signals for communication with both sexes (O. dissimilis (Fallen) and O. inconspicuous Stål; Tishechkin, 2003: 172, 177).

Distributions. This taxon is widely distributed in the Transpalearctic region. See the detailed distributions on the checklist below.

Remarks. Redivision of O. karafutonis stat. rev. and O. nigritus. These two species were established in the same protologue (Matsumura, 1911), Anufriev & Emeljanov (1988) considered O. karafutonis to be a junior synonym of O. nigritus. The type series in SEHU (Figs 4A–E; 9A–E) shows that these two species are distinct due to their coloration (O. karafutonis: brown: O. nigritus: black) and body size (O. karafutonis: 4.66-4.77 mm; O. nigritus: 4.58 mm; ‘ O. nigritus is similar in shape to O. karafutonis M., but slightly narrower.’) (Matsumura, 1911). Thus, we considered O. karafutonis stat. rev. and O. nigritus as respective species, and revived the species status.

Presence of O. nigritus in the Korean Peninsula. The taxonomic issues of O. karafutonis stat. rev. and O. nigritus were discussed in the previous paragraph. O. karafutonis was previously recorded in the Korean Peninsula by Matsumura (1915). According to Anufriev & Emeljanov (1988), O. karafutonis is the junior synonym of O. nigritus, and Kwon et al. (1994) have changed the Korean record to O. nigritus. O. nigritus is being removed from the Korean fauna because we have reexamined the species status of O. karafutonis stat. rev. and revised the record.

Mismatch between female and male of O. nigritus. The blackish coloration of O. nigritus was described in the protologue, which corresponds with the female lectotype specimen (Matsumura, 1911) (Figs 9A–E). According to Anufriev & Emeljanov (1988) which contrasts with the protologue: “In females, face and venter darkened, dorsal part of body light brown”. The male specimen in the SEHU collections complied with Anufriev & Emeljanov (1988) descriptions of external and genital characteristics (Figs 10A–E; 11A–F). Further research is necessary to determine the cause of this issue whether it’s sexual dimorphism or specific species.

Notes

Published as part of Park, Jaekook & Jung, Sunghoon, 2024, The genus Ommatidiotus Spinola (Hemiptera: Auchenorrhyncha: Caliscelidae) from the Korean Peninsula and neighboring countries, pp. 172-190 in Zootaxa 5496 (2) on page 175, DOI: 10.11646/zootaxa.5496.2.2, http://zenodo.org/record/13346536

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Linked records

Additional details

Biodiversity

Scientific name authorship
Spinola
Kingdom
Animalia
Phylum
Arthropoda
Order
Hemiptera
Family
Caliscelidae
Genus
Ommatidiotus
Taxon rank
genus
Taxonomic concept label
Ommatidiotus Spinola, 1839 sec. Park & Jung, 2024

References

  • Spinola, M. (1839) On the Fulgorelles, a sub-tribe of the Cicadaria tribe, order of the Rhyngotes. Annales de la Societe entomologique de France, 8, 133 - 388. [https: // www. biodiversitylibrary. org / item / 105193 # page / 149 /]
  • Fallen, C. F. (1806) Forsok till de Svenska Cicad Arternas uppstallning och beskrifning (continued). Nya Handlingar Kongliga Svenska Vetenskaps-Akademiens, 27, 6 - 43.
  • Fieber, F. X. (1875) Les Cicadines d'Europe d'apres les originaux et les publications les plus recentes. Premiere partie: comprenant les familles des Membracida, Cicadaea, Fulgorida, Cercopida, Ulopida, Paropida, Scarida, disposees selon la methode analytique. Traduit de l'allemand par Ferd. Reiber. Revue et Magasin de Zoologie, Series 3, 3, 288 - 416. [https: // www. biodiversitylibrary. org / item / 103201 # page / 296 /] https: // doi. org / 10.5962 / bhl. title. 36522
  • Metcalf, Z. P. (1958) General Catalogue of the Homoptera. Fascicle IV. Fulgoroidea. Part 15. Issidae. Smith College, Northhampton, Massachusetts, 561 pp. https: // doi. org / 10.5962 / bhl. title. 6822
  • Emeljanov, A. F. (1999) Notes on the delimitation of families of the Issidae group with description of a new species of Caliscellidae belonging to a new genus and tribe (Homoptera, Fulgoroidea). Zoosystematica Rossica, 8 (1), 61 - 72.
  • Gnezdilov, V. M. (2011) New and little known planthoppers of the subfamily Ommatidiotinae (Homoptera, Fulgoroidea, Caliscelidae) from Madagascar and South Asia. Entomologicheskoe Obozrenie, 90 (2), 329 - 334. [in Russian, English Translation: Gnezdilov, V. M. (2011) Entomological Review, 91 (6), 750 - 754] https: // doi. org / 10.1134 / S 001387381106008 X
  • Tishechkin, D. Y. (2003) Vibrational communication in Cercopoidea and Fulgoroidea (Homoptera: Cicadina) with notes on classification of higher taxa. Russian Entomological Journal, 12 (2), 127 - 181.
  • Matsumura, S. (1911) Erster Beitrag zur Insekten-Fauna von Sachalin. Journal of the College of Agriculture, Tohoku Imperial University, 4 (1), 1 - 145, pls. 1 - 2, errata.
  • Anufriev, G. A. & Emeljanov, A. F. (1988) Suborder Cicadinea (Auchenorrhyncha). In: Lehr, P. A., (Eds.), Keys to the insects of the Far East of the USSR. Vol. 2. Nauka, Leningrad, pp. 12 - 495.
  • Matsumura, S. (1915) Neue Cicadinen Koreas. Transactions of the Sapporo Natural History Society, 5, 154 - 184. [https: // www. biodiversitylibrary. org / page / 15193025 # page / 172 /]