Viperinus pyknoistus Park & Koo 2021, sp. nov
| Main Authors: | Park, Kyu-Tek, Koo, Jun-Mo |
|---|---|
| Format: | info publication-taxonomictreatment Journal |
| Terbitan: |
, 2021
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/5074148 |
Daftar Isi:
- Viperinus pyknoistus Park & Koo, sp. nov. LSID: urn:lsid:zoobank.org:act: 5DD1B66E-5583-456A-A584-0500B2418AD9 (Figs 2A–F) Type specimens. • Holotype: male, Uganda, Murchison Fall N. P., Sambia Lodge, 2,500 ft, 22.vii.2000, DJL Agassiz, gen. slide no. CIS-7490, in NHMUK. Diagnosis. This species is superficially similar to the preceding new species, V. orbiosus, but it can be easily distinguished by the male genitalia having different shape of the cucullus and the modified processes at each base of the valva: 1) the cucullus is narrowly elongated distally; 2) the process arising from the base of the valva has a broadened distal part, whereas in V. orbiosus, it is produced sharply with a pointed distal part. (Fig. 2D). Description. Male (Figs 2A–C). Wingspan 14.0 mm. Head and Thorax: No superficial characters separable from the preceding new species, V. orbiosus, are found in the head, thorax and forewing color patterns. Only a little difference is observed in the 2 nd segment of labial palpus with dark brown in basal 1/3, then orange white in distal 2/3 on outer surface, whereas in V. orbiosus, it is covered with dark brown scales in basal 2/3, then gradually turning orange white on outer surface. Abdomen: Dark brown, spinose zones in a row along posterior margin of each dorsal segment, well accordant with that of V. orbiosus (Fig. 2F). Male genitalia (Figs 2D, E): Uncus broad basally, gradually narrowed distally, with round apex. Basal plate of gnathos produced distally, nearly pentagon; median process small, strongly bent downwardly beyond 5/6. Tegumen deeply concave in wide inverted V-shaped, heavily sclerotized on anterior margin. Valva with short basal part; slightly expanded dorsally near base of costa; cucullus long, narrowly elongated distally; ventral margin nearly straight, arched medially; apex narrowly produced; a pair of large, unique, arched processes arising one from each base of valva, broadened apically, giraffe ossicone-shaped, with dense setae. Juxta weakly developed. Aedeagus nearly same length as valva, narrow in basal 2/5, distal 3/5 broadened, with semi-ovate ventral lobe, sharply produced ventrally; dorsal margin heavily sclerotized; cornutus absent. Distribution. Uganda. Etymology. The species name is derived from the Greek, pyknos (= thick) with Greek superlative ending, - istus, referring to the thickened flagellum of the antenna.
- Published as part of Park, Kyu-Tek & Koo, Jun-Mo, 2021, A new genus Viperinus Park with descriptions of two new species, and two new species of the genus Protolychnis Meyrick, 1925 (Lepidoptera, Gelechioidea, Lecithoceridae) in Kenya and Tanzania, with a checklist of the world species, pp. 359-370 in Zootaxa 4985 (3) on page 363, DOI: 10.11646/zootaxa.4985.3.3, http://zenodo.org/record/4956106