Canthophorus dubius dubius ( Scopoli, 1763 )

Gapon, Dmitry A., 2018, Morphology of male and female terminalia and taxonomic revision of the burrower bugs genus Canthophorus (Heteroptera: Cydnidae), Annales de la Société entomologique de France (N. S.) 54 (3), pp. 183-228 : 15

Canthophorus dubius dubius ( Scopoli, 1763) ( Figures 1 A , 3 A, 3 B , 6 A –6 C , 7 A , 8 H , 12 A )

Material examined

Germany: “ Hercynia ” [ Hercynian Forest ], 1♀ ( ZISP). France: Îlede-France: Seine-et-Marne, Forêt de Fontainebleau , 1J ( MNHN); Région Bourgogne-Franche-Comté: Côte-d’ Or, Moloy , VI.1936, 1♀ ( MNHN); Provence-Alpes-Côte d’ Azur: “FOR. MORIERES [ Forêt Domaniale des Morières ] VAR”, coll. A. Jung, 1J, 1♀ ( MNHN); Mimet, chaîne de l’ Étoile , 25.VII.1973, 1J ( MNHN); Roquefort-les-Pins, prairie , 26.VII.1983, 1♀ ( MNHN). Spain: Aragon: Province of Huesca, Los Mallos [de Riglos ], 28.V.1981, 1♀ ( MNHN). Italy: Lombardy: Lecco, 28.V.1934 (Passauro), 6♀ ( ZISP). Ukraine: Zhytomyr Prov.: vicinity of Zhytomyr , 21.VI.1897 (Birula), 1♀ ( ZISP); Vinnytsia Prov., “Podol’ sk.[aya] gub.[erniya], Mogil.[evskiy uezd]”, Verkhovka Stllm ., 8.VI.1901 (Chekini), 1J ( ZISP).

Diagnosis

Larger. Membrane whitish, subtransparent ( Figure 1 A ). Apex of sensory process of paramere truncate, trapezoidally or rectangularly rounded ( Figure 3 A, 3 B ). Apex of conjunctival ventral lobe widened, rhomboid, with lateral denticles clearly visible in ventral view; posterior margin of lobe dorsal wall clearly visible in ventral view at extreme apex ( Figure 6 A –6 C ). Length of denticle on spicule basal plate at dorsolateral lobes greater relative to length of spicule: distance from apex of denticle to apex of spicule less than length of denticle ( Figure 7 A ).

Measurements

Body 6.85–8.60 in length, 4.10–5.40 in width; pronotum 3.75–4.95 in width; head 1.65–1.92 in width; ocular index 2.98–3.66; length of antennal segments I–V: 0.35–0.42: 0.53–0.78: 0.64–0.94: 0.91–1.18: 1.01–1.18.

Distribution

Southern (except Portugal), Western (except Belgium and the Netherlands), Eastern (except Belarus and Russia), and Northern (probably Lithuania) Europe. The subspecies was recorded also from Asian Turkey, Lebanon, Iran, Israel, Morocco and also doubtingly from Cyprus, Syria, Algeria and Egypt ( Lis 2006). Apparently, the subspecies is absent in North Africa, and its distribution in Asia Minor and the Near East is very questionable and needs to be clarified. For example, modern records of C. dubius for Turkey are based on the identification of specimens without studying the genitalia; this follows from the fact that special notes about studying the genitalia are given only for Legnotus picipes (Fallén, 1807) ( Yazici et al. 2015) and the species of Odontoscelis Laporte, 1833 and Eurygaster Laporte, 1833 ( Fent & Aktaç 2009).

Figures

Figure 1. Hemelytral membranes in Canthophorus spp. A, C. dubius dubius (Scopoli, 1763), France: Roquefort-les-Pins; B, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; C, C. melanopterus melanopterus (Herrich-Schaeffer, 1835), Ukraine: Ascania Nova; D, C. melanopterus contrarius (Wagner, 1956), Cyprus: Château de Buffavento; E, C. impressus impressus (Horváth, 1880), Russia: Khodzhal-Makhi; F, C. impressus hajastanicus n. ssp., Georgia: gorge of Paravanichet Riv., paratype. Abdomens removed to show membrane colour in transparency.

Figure 3. Right parameres in Canthophorus and Adomerus spp. A, B, C. dubius dubius (Scopoli, 1763), France: Seine-et-Marne; C, D, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; E, C. melanopterus (Herrich-Schaeffer, 1835), Russia: Krasnaya Polyana; F, C. impressus impressus (Horváth, 1880), Ukraine: Demir-kapu; G, C. impressus hajastanicus n. ssp., Armenia: Gekhmakhan Mt., paratype; H, C. wagneri Asanova, 1964, Russia: Makhachkala; I, C. mixtus mixtus Asanova, 1964, Armenia: Kipchakh; J, C. mixtus mixtus Asanova, 1964, Armenia: Gyumri; K, C. mixtus hissaricus Asanova, 1964 n. stat., Tajikistan: urochishche Ruydasht, paratype; L, C. niveimarginatus Scott, 1874, Russia: Kyzyl; M, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek; N, O, A. aeneus (Walker, 1867) n. comb.; P, Q, A. maculipes (Mulsant & Rey, 1852) n. comb. Outer-ventral view (A, C, E, F–M), inner view (N, P), and dorsal view (B, D, O, Q). Scale bar: 0.25 mm.

Figure 6. Ventral lobes of conjunctiva in Canthophorus spp. A–C, C. dubius dubius (Scopoli, 1763), France: Forêt des Morières; D–I, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype (D–F), Russia: Tuapse (G–I); J–M, C. melanopterus (Herrich- Schaeffer, 1835), Ukraine: Yalta (J, K), Armenia: Tigranashen (L, M); N, O, C. impressus (Horváth, 1880), Ukraine: Velikiy Anadol; P, Q, C. wagneri wagneri Asanova, 1964, Russia: Akhty; R, S, C. wagneri hyrcanicus n. ssp., Turkmenistan: gorge Khozly; T, U, C. mixtus Asanova, 1964, Kazakhstan: Dzhanibek; V, W, C. niveimarginatus Scott, 1874, Russia: Kyzyl; X, Y, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek. Ventral view (A, D, G, J, L, N, P, R, T, V, X), lateral view (B, E, H, K, M, O, Q, S, U, W, Y), and anterior view (C, F, I). Scale bar: 0.25 mm.

Figure 7. Spicules of conjunctival dorsolateral lobes in Canthophorus spp.A, C. dubius dubius (Scopoli, 1763), France:Forêt des Morières; B, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; C, D, C. melanopterus melanopterus (Herrich-Schaeffer, 1835), Ukraine: Opolznevoe (C), Tunisia, Sidi el Hani (D); E, C. melanopterus contrarius (Wagner, 1956); F, C.melanopterus mariae n. ssp., Tajikistan:Kondara Gorge, paratype; G, C. impressus impressus (Horváth, 1880), Ukraine:Demir-kapu; H, C. impressus hajastanicus n. ssp., Armenia:Gekhmakhan Mt., paratype; I, C. wagneri wagneri Asanova, 1964, Russia: Il’ Mt. SE Vladikavkaz; J, C. wagneri hyrcanicus n. ssp., Turkmenistan: gorge Khozly, paratype; K–Q, C. mixtus mixtus Asanova, 1964, Kazakhstan: Chagan-Aba (K), Kazakhstan: Yanvartsevo (L); Armenia: Kipchakh (M), Kazakhstan:Khanskaya stavka(N),Tajikistan:KhozretishiRange[Gurjeva] (O,P), Kazakhstan:Trans-Ili Alatau,gorge Levyy Talgar(Q);R,S, C. mixtus hissaricus Asanova, 1964 n. stat., Tajikistan: urochishche Ruydasht, paratype (R), Tajikistan: Khozretishi Range, 75 km NE Muminabad (S); T, U, C. niveimarginatus Scott, 1874, Russia: Kyzyl (T), Mongolia: Stariy Tsakhir (U); V, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek. Scale bar: 0.25 mm.

Figure 8. Female terminalia in Canthophorus spp. A–G, C. melanopterus (Herrich-Schaeffer, 1835), Ukraine: Alma Riv. (A), Azerbaijan: Ganja (B), Ukraine: Kamenets-Podol’skiy (C), Armenia: Dzhervezh (D), Ukraine: Khadzhibeyskiy liman (E), Morocco: Aourir (F); Egypt: “Aegipt.” (G); H, C. dubius dubius (Scopoli, 1763), France: Forêt des Morières; I, C. dubius sanigarum n. ssp., Russia: Krasnaya Polyana, paratype; J, K, C. impressus impressus (Horváth, 1880), Ukraine: “yayla Besh-tekme” (J), Russia: Beshtau Mt. (K); L, C. impressus hajastanicus n. ssp., Armenia: Gekhmakhan Mt., paratype; M, N, C. wagneri wagneri Asanova, 1964, Russia: Anapa (M), Armenia: Sevan Lake (N); O–S, C. mixtus mixtus Asanova, 1964, Ukraine: Kremenets Mt. nr Izyum (O), Armenia: Spitak (P), Ukraine: Aleshki, paratype (Q), Ukraine: Nyrkovo – Vyemka, paratype (R), Azerbaijan: Kars (S); T, U, C. mixtus hissaricus Asanova, 1964; n. stat., Tajikistan: urochishche Ruydasht [paratypes]; V, W, C. niveimarginatus Scott, 1874; Russia: Kosh-Agach (V), Russia: Kamen’-Rybolov (W); X, Y, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek (X), Kyrgyzstan: Berk-Suu Riv (Y). External terminalia (genital plates) and vestibulum of gynatrium, ventral view (A); gynatrial sac, dorsal view (B); shape of right first ramus (C–Y). a.g – anterior part of gynatrial sac; d.d – distal part of spermathecal duct; f.r – first rami; g.c – gynatrial cone; gn – gonangulum; gp.I – gonapophyses I; gp.II – gonapophyses II; gx.II – gonocoxites II; m.d – median part of spermathecal duct; p.d – proximal part of spermathecal duct; p.g – posterior part of gynatrial sac; p.m – posterior margin of gynatrial sac; p.p – posterior pouches of gynatrial sac; r.s – ring sclerites; tr – triangulum. Scale bars: 0.25 mm.

Figure 12. Posterior pouches of gynatrial sac in Canthophorus spp., posterio-inner view. A, C. dubius (Scopoli, 1763), Italy: Lecco; B, C. melanopterus (Herrich-Schaeffer, 1835), Ukraine: Alma Riv.; C, C. impressus impressus (Horváth, 1880), Ukraine: “yayla Besh-tekme”; D, C. impressus hajastanicus n. ssp., Armenia: Gekhmakhan Mt., paratype; E, C. wagneri Asanova, 1964, Russia: Anapa (some diagnostic characters is indicated by arrows); F, C. mixtus Asanova, 1964, Ukraine: Aleshki, paratype (pouch is shown straightened). Scale bar: 0.25 mm.