Canthophorus niveimarginatus Scott, 1874

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 : 39

Canthophorus niveimarginatus Scott, 1874 ( Figures 3 L , 5 D , 6 V, 6 W , 7 T, 7 U , 8 V, 8 W , 11 D )

Canthophorus niveimarginatus Scott 1874: 289 , 295 [syntypes: Japan] .

Material examined

Russia: Krasnoyarsk Terr.: Ermakovskiy Distr., Usynskiy maral sovkhoz , 22,23. VI.1979 (Korotyaev), 1J, 1♀ ( ZISP) ; Altay Republic: Kosh-Agach Settlm ., 23.VI.1964 (M. Kozlov), 1♀ ( ZISP) ; Republic of Tyva: Boyarovka Settlm . nr Kaa-khem Settlm., 23.VII.1949 (Perevozchikova), 1♀ ( ZISP) ; Kyzyl , 2.VIII.1949 [collector unknown], 1J ( ZISP) ; Kyzyl, floodplain of Yenisey , left bank, 13.VII.1979 (B.A. Korotyaev), 1♀ ( ZISP) ; Ovyurskiy Distr., 20 km E Torchalyg Settlm., Kadyy Riv. , steppe and floodplain, 20.VII.1979 (B.A. Korotyaev), 1♀ ( ZISP) ; Zabaykal’ skiy Terr.: Borzinskiy Distr.: Sherlovaya Mt. , с. 1000 m amsl, forest-steppe, 10.VI.1989 (O. N. Kabakov), 1♀ ( ZISP) ; Tsagan-Oluy Settlm ., 1000–1100 m amsl, forest-steppe, 14.VII.1989 (O.N. Kabakov), 1♀ ( ZISP) ; Primorskiy Terr.: Kamen’-Rybolov, Khanka Lake , 24, 25,29–30. V. 1908 ( Cherskiy ), 3♀, 10.VII.1927 ( Stackelberg ), 1♀ ( ZISP) . Mongolia: [without locality] 1976 (I.M. Kerzhner), 1♀ ( ZISP) ; Uvs Prov: 15 km S Ulaangom , 30.VIII.1968 (Arnoldi), 1J ( ZISP) ; Khövsgöl Prov., 17 km N Shine-Ider , 22.VII.1975 (E. L. Gurjeva), 1♀ ( ZISP) ; 25 km SSW Muren , 23.VII.1975 (E.P. Nartshuk; M.A. Kozlov), 1J, 2♀ ( ZISP) ; Khankh Settlm ., 26. VII.1983 (I. Ovchinnikov), 1♀ ( ZMUM) ; Arkhangai Prov.: 35 km E somon Chulut , 29.VII.1967 (Kerzhner), 1♀ ( ZISP) ; 12 km SW Stariy Tsakhir , 28.VI.1975 (A.F. Emeljanov), 1J ( ZISP) ; 30 km NW Ikh-Tamir , stony low bunchgrass steppe, under stones, 28.VI.1975 (E.L. Gurjeva), 1♀ ( ZISP) ; Bulgan Prov.: 10 km NNE Bugat , 7.VII.1975 (E.L. Gurjeva), 1♀ ( ZISP) ; Numre-chiyn-Gol Riv., 32 km SE Salkhit Mt. , 15.VI, 6–9.VIII.1976 (E.L. Gurjeva), 2♀ ( ZISP) ; Selenge Prov.: 25 km S Darkhan , 30.V.1975 (E. Sugonjaev), 1♀ ( ZISP) ; 10 км NE Selenge, Ingetiyn-Gol Riv. , 27.VII.1975 (M.A. Kozlov), 1♀ ( ZISP) ; Dornod Prov., Derkhin-Tsagan-Obo Riv., 60 km ENE Bayan-Burd[ -Nur Lake ], 12,13. VI.1976 (M.A. Kozlov), 2♀ .

Description

Distinguished from all other species by metapleural evaporatorium with short and almost straight peritreme slightly protruding beyond middle of metapleuron. Lateral margins of pronotum, corium, abdominal venter and connexivum with yellowish narrow stripe. Membrane brownish, opaque.

Pygophore as in C. mixtus .

Paramere with rather long and widely rounded apically sensory process ( Figure 3 L ).

Aedeagus ( Figure 5 D ) similar to that of C. mixtus and distinguished by somewhat longer dorsolateral lobes of conjunctiva and ventral lobe having convex lateral margins subapically and ventral wall convex along median line at apex in ventral view ( Figure 6 V ); in lateral view, lobe relatively wider and oblique apically ( Figure 3 W ). Spicule at dorsolateral lobes weakly ( Figure 7 T ) or sharply ( Figure 7 U ) curved.

Gynatrium almost as in C. mixtus , with somewhat shorter posterior pouches ( Figure 11 D ). First rami rather wide or narrow anteriorly, more or less obliquely truncated at anterior end, with rounded ( Figure 8 V ) or acute inner angle ( Figure 8 W ).

Measurements

Body 5.60–8.00 in length, 3.35–5.30 in width; pronotum 3.05–4.60 in width; head 1.36–1.78 in width; ocular index 3.39–4.47; length of antennal segments I–V: 0.29–0.36: 0.53–0.63: 0.48–0.73: 0.69–0.94: 0.78–1.06.

Distribution

Russia (Western and Eastern Siberia, Far East), Kazakhstan, Mongolia, China (North, Central and Southwest Territories) Japan, the Korean Peninsula, east of India, and north of Vietnam ( Lis 2006).

Figures

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 5. Aedeagi of Canthophorus spp. in dorsal view. A, C. impressus (Horváth, 1880), Armenia: Gekhmakhan Mt.; B, C. wagneri Asanova, 1964, Russia: Makhachkala; C, Canthophorus mixtus Asanova, 1964, Armenia: Kipchakh, 1964; D, C. niveimarginatus Scott, 1874, Mongolia: Ulaangom; E, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek. 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 11. Female terminalia in Canthophorus spp. A, B, C. mixtus mixtus Asanova, 1964, Ukraine: Aleshki, paratype (A), Azerbaijan: Kars (B); C, C. mixtus hissaricus Asanova, 1964; n. stat., Tajikistan: urochishche Ruydasht, paratype; D, C. niveimarginatus Scott, 1874; Russia: Kamen’-Rybolov; E, C. coeruleus (Reuter, 1902), Kyrgyzstan: urochishche Ak-terek. Gynatrial sac (A, C–E) and its posterior part (B) in dorsal view. Scale bar: 0.25 mm.