Neodymantis plana (Fabricius) Fabricius, 2015

Kment, Petr & Rider, David A., 2015, On the synonymy of Dymantis Stål, 1861 and Eomyrochea Linnavuori, 1982 and resulting nomenclatural changes (Hemiptera: Heteroptera: Pentatomidae), Zootaxa 4058 (2), pp. 278-286 : 281-282

Neodymantis plana (Fabricius) , comb. nov.

Halys plana Fabricius, 1803: 183 (original description). Syntypes: Guinea (Mus. Lund) (ZMUC (4 specimens), and ZMUK [currently deposited in ZMUC] (1 specimen)—see Zimsen 1961: 319).

Halys plana: Thunberg (1823): 5 (list); Herrich-Schaeffer (1840): 75, Plate CLXIX: Fig. 519 (redescription, figure); Zimsen (1961): 319 (catalogue of types).

Paramecoris planus : Stål (1856): 55 –56 (comparison with P. binotatus).

Dymantis plana: Stål (1861): 199 –200 (generic placement, comparison with D. subvittata ); Stål (1865): 110 –111 (redescription, synonymy, distribution); Stål (1868): 21 (catalogue, type depository); Stål (1876): 51 –52 (catalogue, distribution); Lethierry & Severin (1893): 109 (catalogue, distribution); Kirkaldy (1909): 182 (catalogue, distribution); Distant (1901): 25 (records); Schouteden (1909): 41 (records); Schouteden (1912a): 72 (record); Jeannel (1913): 35 (list); Schouteden (1913a): 194 (record); Schouteden (1913b): 328 (record); Bergroth (1914): 448 –449 (comparison with D. confusa , distribution); Lehmann (1922): 13 (record); Hesse (1925): 18 –19 (catalogue, records); Mancini (1939): 197 (record); Villiers (1950): 326 (record); Leston (1952): 902 (record); Villiers (1952a): 67 (diagnosis, figure, distribution); Villiers (1952b): 303 (records); Villiers (1952c): 1207 (record); Villiers (1954): 916 (record); Villiers (1967): 1790 (record, distribution); Gillon (1972a): 277, 281, 290, 298, 318–320 (redescription, key to adults, key to larvae, egg, larva I–V, figures); Gillon (1972b): 380, 386, 404, 405 (ecology); Gillon (1974a): 218, 241, 246, 248, 253–254, 258–259, 266, 269, 283, 290–291, 296 (ecology); Pollet (1974): 337, 338, 353 (ecology); Gillon (1978): 116 –118, 156–157 (ecology); Medler (1980): 125 (checklist); Linnavuori (1982): 67 –69 (redescription, key to species, figures, records); Robertson (2009): 275 – 276 (catalogue, distribution); Göllner-Scheiding (2012): 99 (record); Agboton et al. (2014): 10 (host plant, record).

Dymantis plana var. b: Stål (1861): 111 (variation).

Sciocoris planus: Dallas (1851): 136 (catalogue, distribution); Dohrn (1859): 10 (catalogue); Walker (1867): 174 (catalogue, distribution); Casale (1981): 49 (collection catalogue, record).

Paramecoris binotatus Stål, 1855: 181–182 (original description). Syntype (s): Sierra Leone (NHRS). Synonymized by Stål (1865: 111).

Paramecoris binotatus: Stål (1856): 55–56 (redescription, comparison with P. plana , distribution); Dohrn (1859): 11 (catalogue).

Dymantis binotata: Stål (1861): 199 –200 (generic placement, distribution); Stål (1865): 111 (synonymy).

Dymantis plana var. binotata: Lethierry & Severin (1893): 109 (catalogue); Kirkaldy (1909): 182 (catalogue).

Material examined. GHANA: ♂, “Legon, A.D., Ghana, 14.I.69 ” ( DARC), ♂, same except “ 27.IIII. [sic] 72” ( DARC); ♀, Aburi, Ghana, 25-10-80, Allotea, J” ( DARC). TOGO: ♂, “Bismarckburg, 11.-16.IX.92, L. Conradt S.”, Dymantis plana F. Karsch det.” ( DARC), ♀, same except “ 7.-12.IX.92 ( DARC).

Distribution. Angola ( Hesse 1925, locality Namacunde), Benin ( Bergroth 1914, without exact record; Villiers 1952c; Agboton et al. 2014), Democratic Republic of the Congo ( Distant 1901; Schouteden 1909, 1912a, 1913a; Lehmann 1922), Ethiopia ( Mancini 1939), Ghana (new record); Guinea ( Fabricius 1803; Thunberg 1823; Villiers 1952b, 1954), Guinea-Bissau ( Schouteden 1913b), Ivory Coast ( Gillon 1972a, b, 1974a; Linnavuori 1982), Namibia ( Hesse 1925, locality Ovamboland–Mafa), Niger ( Villiers 1950), Nigeria (Meddler 1980), Republic of the Congo ( Villiers 1967, Göllner-Scheiding 2012), Sierra Leone ( Dallas 1851, Walker 1867, both as Sciocoris planus ; Stål, 1855, 1856, no exact record, as Paramecocoris binotatus), South Africa ( Walker 1867, without exact record; Casale 1981), South Sudan ( Bergroth 1914, locality Sobat [river] on the White Nile), Togo (new record).

Herrich-Schaeffer’s (1840) record from Brasil is apparently a mistake. The record of Dymantis plana from Tanzania ( Gerstaecker 1873) apparently represents a misidentification, most probably of D. relata .

Nonnaizab (1995) listed Dymantis plana from China (Inner Mongolia, Xinjiang, Qinghai), as well as from Mongolia and ‘the former Soviet Union’. The provided redescription, habitus and paramere drawing appears to us to be identical with Phaeocoris ellipticus (Herrich-Schaeffer, 1840) as illustrated by Ahmad et al. (1996, as Lodosia gonocoxa) and Gapon & Baena (2005), who figured the paramere from nearly the same aspect. The illustrations from both of the above papers fit well with the drawings by Nonnaizab (1990). Later, Nonnaizab et al. (1988) and Nonnaizab (1999) listed Dymantis elliptica (Herrich-Schaeffer) from Inner Mongolia, which is a species recently reinstated in the genus Phaeocoris (see Gapon & Baena 2005), which leaves no doubt about the record of D. plana by Nonnaizab (1995) is a misidentification of that species.