Zwicknia sevanica ( Zhiltzova, 1964 ) Murányi & Gamboa & Orci, 2014

Murányi, Dávid, Gamboa, Maribet & Orci, Kirill Márk, 2014, Zwicknia gen. n., a new genus for the Capnia bifrons species group, with descriptions of three new species based on morphology, drumming signals and molecular genetics, and a synopsis of the West Palaearctic and Nearctic genera of Capniidae (Plecoptera), Zootaxa 3812 (1), pp. 1-82 : 49-51

Zwicknia sevanica ( Zhiltzova, 1964) comb. n.

( Figs. 61 , 94–97 , 111 , 118 , 124 , 144–145 , 161–162 , 196 )

Capnia sevanica Zhiltzova, 1964 — Zhiltzova 1964: 356. (original description of the adult); Zwick 1971: 252. (first record for Turkey).

Diagnosis. Male epiproct: Ep-scl narrow and pointed in dorsal view, tip straight in lateral view; ventral membranous section nearly reach the base in lateral view, apical spines short, distributed also on the apex of Ep-scl. Process of male Tg 9: high, perpendicularly elevated, 2× wider than Ep-scl, rounded and with continuous narrow sides caudally.

dorsal view; 95: ventral view; 96: lateral view; 97: caudal view—scale 1 mm.

Material examined. TURKEY: Ankara Province, Akyarma Pass, 1300–1400 m, 30.03.197 7, leg. R . Kinzelbach, det. P. Zwick: 27m 3f, 3m 19f larvae ( PZC; used for drawings Figs. 94–97 , 124 , 144–145 , 161–162 ; one entire male and one male terminalia prepared for SEM to Figs. 111 , 118 ), 3m 2f, 2f larvae ( BYUC) .

Description. Head, thorax, appendages and basal segments of the abdomen generotypic. Males micropterous, females macropterous. Dimensions of the presently examined specimens: body length: males 5.0–6.0, females 7.5–9.0 mm; forewing length: males 0.5 mm, females 8.0–9.5 mm.

Male terminalia ( Figs. 94–97 , 124 ): Process of Tg 9 high, perpendicularly elevated, its apex is slightly wider than the medial section of Ep-scl; its shape is rounded, the apex smooth; sides constantly narrow in caudal view, the membranous portion narrowest in the apical part ( Figs. 161–162 ). Tg 10, B-scl and Lb-scl generotypic. Ep-scl narrow and pointed in dorsal view, medially not swollen, its medial width is the half or the third of basal width; tip straight in lateral view, divided section moderately long. Ventral membranous part between the division of Ep-scl nearly reach the base in lateral view; apical spines short, distributed not only on the membranous part but extend to the Ep-scl ( Figs. 111 , 118 , 144–145 ). I-scl generotypic, Ec long and contorted on the available specimens. St 9 not projecting medially, vesicle large but can be vestigial. Sg rounded with not so pronounced triangular shape, tip rounded. Pp, Fp, Rp and cerci generotypic.

Female subgenital plate: Rectangular, posterior margin rounded and slightly incised, equal to the segment`s posterior margin. Antero-lateral recess indistinct, plate entirely brown; lateral sclerites relatively small (see Zhiltzova 1964, Fig. 19 , repeated as Fig. 577 in Zhiltzova 2003).

Affinities. This species is closely related to Z. tuberculata and Z. turkestanica , but the males differ with having a straight Ep-scl tip instead of slightly downcurved tip. From other species of the genus, males are easily distinguishable by high, but rounded Tg 9 process. As with most other females of the genus, separation is difficult with any certainty and the larvae are morphologically indistinguishable.

Distribution and ecology. The species was described from Armenia, later reported from the Central Pontic Mts. of northern Anatolia ( Fig. 196 ). Adults are active from March to May at high mountain streams, between 1,500 and 2,200 m.

Figures

FIGURES 58–61. Micropterous wings of Zwicknia Murányi, gen. n. males—58: Z. bifrons (Newman, 1838); 59: Z. acuta Murányi & Orci, sp. n.; 60: Z. rupprechti Murányi, Orci & Gamboa, sp. n.; 61: Z. sevanica (Zhiltzova, 1964)—scale 0.2 mm.

FIGURES 94–97. Male terminalia of Zwicknia sevanica (Zhiltzova, 1964); Turkey, Ankara Province, Akyarma Pass—94:

FIGURES 110–113. Lateral view of male epiproct of Zwicknia Murányi, gen. n.—110: Z. kovacsi Murányi & Gamboa, sp. n.; 111: Z. sevanica (Zhiltzova, 1964); 112: Z. tuberculata (Zhiltzova, 1964); 113: Z. turkestanica turkestanica (Kimmins, 1950)—scale 0.1 mm.

FIGURES 114–119. Dorsal view of male epiproct of Zwicknia Murányi, gen. n.—114: Z. bifrons (Newman, 1838); 115, 117: Z. rupprechti Murányi, Orci & Gamboa, sp. n.; 116: Z. kovacsi Murányi & Gamboa, sp. n.; 118: Z. sevanica (Zhiltzova, 1964); 119: Z. acuta Murányi & Orci, sp. n.—scale 0.1 mm.

FIGURES 124–126. Male terminalia of Zwicknia Murányi, gen. n., dorso-caudal view—124: Z. sevanica (Zhiltzova, 1964); 125: Z. tuberculata (Zhiltzova, 1964); 126: Z. turkestanica turkestanica (Kimmins, 1950)—scale 1 mm.

FIGURES 127–147. Male epiproct of Zwicknia Murányi, gen. n.—127–130 Z. acuta Murányi & Orci, sp. n.; 131–132: Z. kovacsi Murányi & Gamboa, sp. n.; 133–138: Z. rupprechti Murányi, Orci & Gamboa, sp. n.; 139–143: Z. bifrons (Newman, 1838); 144–145: Z. sevanica (Zhiltzova, 1964); 146: Z. tuberculata (Zhiltzova, 1964); 147: Z. turkestanica turkestanica (Kimmins, 1950); 127–131, 133, 135, 137, 139–147: lateral view; 132, 134, 136, 138: dorsal view (127: Slovakia, Krupinská Planina, Pôtor; 128: Hungary, Zemplén Mts., Kishuta; 129: Serbia, Fruska Gora, Vrdnik; 130: Serbia, Zlatibor Mts., Crni Rzav; 131–132: Romania, Rodna Mts., Borşa–Staţiunea Borşa; 133–134, 137–138: Croatia, Ivanščica Mts., Stari Golubovec; 135–136: Hungary, Mecsek Mts., Komló-Zobákpuszta; 139: Hungary, Börzsöny Mts., Szokolya-Királyrét; 140: Hungary, Mátra Mts., Gyöngyössolymos; 141: Hungary, Bükk Mts., Nagyvisnyó; 142: Hungary, Bakony Mts., Bakonybél; 143: Serbia, Maljen Mts., Brajkovići; 144–145: Turkey, Akyarma Pass; 146: Kazakhstan, Karatau Mts., Bajaldyrtal; 147: Kazakhstan, Tarbagatai Mts., Ayagos)—scale 0.2 mm.

FIGURES 148–164. Humps of male Tergite 9 of Zwicknia Murányi, gen. n., caudal view—148–151: Z. acuta Murányi & Orci, sp. n.; 152–156: Z. bifrons (Newman, 1838); 157–159: Z. rupprechti Murányi, Orci & Gamboa, sp. n.; 160: Z. kovacsi Murányi & Gamboa, sp. n.; 161–162: Z. sevanica (Zhiltzova, 1964); 163: Z. tuberculata (Zhiltzova, 1964); 164: Z. turkestanica turkestanica (Kimmins, 1950) (148: Slovakia, Krupinská Planina, Pôtor; 149: Hungary, Zemplén Mts., Kishuta; 150: Serbia, Fruska Gora, Vrdnik; 151: Serbia, Zlatibor Mts., Crni Rzav; 152: Hungary, Börzsöny Mts., Szokolya-Királyrét; 153: Hungary, Mátra Mts., Gyöngyössolymos; 154: Hungary, Bükk Mts., Nagyvisnyó; 155: Hungary, Bakony Mts., Bakonybél; 156: Serbia, Maljen Mts., Brajkovići; 157, 159: Croatia, Ivanščica Mts., Stari Golubovec; 158: Hungary, Mecsek Mts., Komló-Zobákpuszta; 160: Romania, Rodna Mts., Borşa-Staţiunea Borşa; 161–162: Turkey, Akyarma Pass; 163: Kazakhstan, Karatau Mts., Bajaldyrtal; 164: Kazakhstan, Tarbagatai Mts., Ayagos)—scale 0.2 mm.

FIGURES 196–197. Distribution of Zwicknia Murányi, gen. n.—196: global distribution; 197: studied populations of the Carpathian Basin and the northern Balkans—in Fig. 196, white dot on Z. bifrons symbols indicate populations studied by Rupprecht (1997), dotted lines indicate limits of s.l. Z. bifrons literature reports; in Fig. 197, white dot on symbols indicate populations where drumming signals were studied by us, white star indicate type localities.

FIGURES 17–22. Male terminalia of Nearctic Capniidae—17–18: Bolshecapnia gregsoni (Ricker); 19–20: Isocapnia grandis (Banks); 21–22: Eucapnopsis brevicauda (Claassen); 17, 19, 21: dorso-caudal view; 18, 20, 22: ventro-caudal view (B-scl: basal sclerite; Ec: eversible crest; Ep-scl: main epiproct sclerite (shaded in grey); I-scl: inner sclerite; Lb-scl: laterobasal sclerite; Tg 10: tergite 10)—not to scale.