Leuctra braueri, Kempny 1898

Vinçon, Gilles & Graf, Wolfram, 2011, Two New Alpine Leuctra In The L. Braueri Species Group (Plecoptera, Leuctridae), Illiesia 7 (9), pp. 92-103 : 97-100

L. braueri Kempny 1898

( Figs. 8-10 )

Material examined. FRANCE: Hautes-Alpes: Devoluy Massif, Lus-la-Croix-Haute, Rioufroid brook, 1500m, 19.09.87, 2♀, 29.08.88, 1♀ ( Vin. ) . Isère: Croix-Haute Pass, Alpes du Jocou, 1350m, 16.09.90, 4♂, 5♀, 13.10.91, 1♀, Ebron trib, 1000m, 33♂, 23♀ (Vin.). Vercors Massif: St Michel-les-Portes, Pellas spr., <Aupet Pass, 1400m, 16.09.90, 5♂, 2♀, 13.10.91, 2♂, 11♀, 17.09.99, 5♀;> St Ange, Pissarde spr., 950m, 11.09.94, 1♀;> Lans-en-Vercors, Furon spr., 1250m, 8.09.91, 12♂, 12♀; 6.10.91, 1♂; St Gervais, Drevenne tor.> Cascade, 880m, 6.10.91, 1♂, 1♀; Drevenne <Romayère Pass, 1000m, 8.09.91, 24♂, 22♀; 6.10.91, 4♀ (Vin.). Chartreuse Massif: Charmette Pass, N. slope, Ivernon brook, 1200m, 9.09.89, 2♀, S. slope, Vence trib., 9.09.89, 1♀ (Vin.). Savoie: Ste Foy Tarentaise, Le Miroir, Isère trib., brook, 1300m, 22.09.91, 1♂; Bauges Massif: spring Cherel trib., 1200m, 22.09.91, 14♂, 13♀ ( Vin. ) . Haute-Savoie: Tamié Pass, close to the Tamié Abbaye, Chaise trib., 900m, 14.10.90, 1♀ (Vin.). Tournette Massif, Montaubert, Chaise trib., 1000m, 8.09.93, 1♂ (Vin.). Cornette de bise Mount,> Vouvry, Le Fosseau, 1000-1400m, 16.08.89, 1♂ (Vin.). Jura Massif, Doubs: Jougne, Entre-les-Fourgs, La Jougnena trib., brooklet, 1000m, 21.08.95, 6♂, 6.09.95, 5♂, 8♀ ( Vin. ); Jura Massif, Ain:> Gex, road to Faucille Pass, Oudar tor., 850m, 20.08.89, 4♂, 2. Vattay Ski Station, Faucille Pass, Valserine spring, 1300m, 21.08.95, 7♂, 3♀, 5.09.95, 5♀, 23.10.95, 1♀ ( Vin. ) . SWITZERLAND: Vaud: Ollon; Vallée Gryonne, 1460m, 5.08.81, 3♂; Froideville, Jorat , rte de Froideville Riv, 890m., 23.09.78, 6♂ (Aub., Gattolliat det). Fribourg: Chatel-St-Denis, s. Les Paccots, 1130m, 11.09.78, 1♂; Chatel-St-Denis, Creux de l'Ours Riv., 1300m, 13.10.78, 2♂; Semsales, Le Cheval Brulé Riv., 1310m, 29.08.79, 1♀ (Aub., Gattolliat det.). Berne, Rueschegg, Schalenberg Riv., 1450m., 2♀, 22.08.01, 1♀, 2.10.01 (Aub., Stucki leg., Gattolliat det.). Lucerne, Hergiswil-Willisau, Napf , Wiggerenhütten Riv. , 900m , 14.09.82, 1♀ (Aub., Gattolliat det.);Wald Emme, Fluehli sur Sörenberg , 1250m , 26.08.1980, 16♂, 2♀ (Aub.). Obwald: Giswil, Kleinteil, Mülbach, 560m, 26.08.1980, 2♂, 1♀; Sarnen, Schwendi-Kaltbad, 1450m, 27.08.1980, 9♂, 1♀ (Aub.). Uri: Spiringen, Schächental Riv., 1050m, 4.10.1957, 1♂, 4♀ (Aub.). Saint-Gall: Wildhaus, Schwendi brook, 1250m, 5.10.1957, 4♂, 6♀; St Gallenkappel, Ranzachtobel spring, 550m, 22.08.2002, 1♂; 7.09.2002, 10♂, 4♀ (Lubini coll.); Sädelrain, Winterthur, Tuffquelle , 630m , 26.09.2001, 5♀ (Lubini coll.). Ticino: Ghirone, Val Blenio Riv. , 1250m , 17.09.90, 1♀; Lopagno, Val Colla , 730m , 15.09.1985, 1♂, 2♀; Val Colla , Cassarate tor.,> Sonvico, 640m , 15.09.85, 3♂; 11.04.86, 1 la; Val Colla , between Bidogno and Albuno, 900m , 15.09.85, 2♂, 1♀; Bach Aquino (684), 585m, 20.09.96, 9♂, 4♀; spr. (Ravizza leg., Aub.); Indemini, Valle di Vira , 16.09.1985 , 1♀, Ravizza coll.; Valle di Vira , 16.09.85 , 4♀; 13.09.88, 2♂, 6♀; 15.09.90, 3♂, 8♀; 17.09.88, 1♂; Bedretto, Bedretto Riv., 1600m, 16.09.1985, 1♂, 3♀, Ravizza coll.; Val Bedretto , 1.10.44 , 4♂, 5♀. Valais: Montana, Montana Riv, 1600m, 10.08.58, 7♂; Saxon, Saxon brook, 607m, 18.10.06, 1♀ (Aub.). Grisons: Passo del San Bernardino ,> Mesocco, <tunnel, 17.09.09 , 12♂, 15♀; near the rest area, 17.09.09, 11♂, 21♀ (Vin.); San Bernardino, Mesocco Riv., 1610m. 9.09.1950, 9♂, 9♀; Grono, Mesocco Riv. , 16.09.1990 , 1♀ (Ravizza coll.);> Splügen, Spluga Pass , 17.07.09 , 1♂, 3♀ (Vin.); Alp Nadels, Trun, Dadens Riv., 1940m, 28.08.2001, 2♀ (Lubini coll.). ITALY: Cottian Alps: NW. Perosa Argentina,> Meano ,> Borgata Selvagio , spr. Chisone trib., 1200m , 29.09.02, 6♂, 29♀; W. Giaveno, Alpe Colombina, Aquila ski station, 1200m, 9.10.99, 2♂, 2♀ (Vin.); Coazze, tor. Sangonetto, loc. Prietto, 900 m , 26.10.02, 2♂ (Del.). Graian Alps: S. Viu, Lis Pass, spr., Stura di Viu trib., 1000m , 23.10.00, 2♂, 3♀; 27.08.05, 1♂; NE. Lanzo Torinese,> Corio, Pian d’Audi, Malone trib., 865m, 26.12.94, 1♀, 23.10.00, 1♀ (Vin.); NW Cuorgne, Alpette, Nero brook, 920m , 9.09.08, 2♂ (Del.);> Quincinetto, Renanchio b., Dora Baltea trib., 1100m, 9.10.99, 1♂, 5♀; 17.09.09, 13♂, 25♀ (Vin.). Pennine Alps: E. St-Vincent, Joux Pass,> Grand Rhun, 1400m , 27.10.04, 4♂, 8♀; E. Pont St Martin,> Carema, brook, Dora Baltea trib., 500m, 2.11.90, 13♀; SE. Pont St Martin,> Settimo Vittone,> Trovinasse, spr., 1600m, 26.10.04, 23♂, 47♀; 13.08.05, 1♂; <Trovinasse, 1000m, 26.10.04, 7♂, 11♀ (Vin.); NW Biella, Piedicavallo, Cervo trib., 10.09.55 , 2♂, 1♀ (Aub.); Val Sesia , Alagna, Sesia trib., 1300 m , 14.09.78, 1♂, 4♀ (Rav.); E. Quittengo, Panoramica Zegna, Sessera trib., 1300m, 4.11.90, 1♂, 8♀; N. Varallo, Sabbiola trib., <Erbareti, 8.10.90, 1♂, 3♀; 3.11.90, 6♂, 14♀; E. Varallo, Civiasco, spr., Sesia trib., 700m, 8.10.90, 1♂, 2♀; Val Strona , <Rosarolo,> Massiola, 600m , 10.10.99, 2♀ (Vin.); NE. Orta San Giulio, Armeno, Agogna tor., Sovazza loc., 550 m , 21.09.04, 1♂, 1♀ (Del.). Lepontine Alps: Aurano, ruisseau, E. slope of Zeda-Laurasca Mounts, 1000 m, 21.10.91 (Rav.). Atesine Alps: SW. Vipiteno, Monte Giovo Pass, N. slope, 1200m, 11.10.99, 2♂, 1♀ (Vin.); Alto Adige, NE. Brunico, Val de Tures, Riva di Tures , tor. Riva, 1300m , 10.06.80, 1♀ (Rav.). Dolomites: Falzarego pass., Gaderbach, brooklet NW slope of the pass, 2100m, 11.10.99, 7♂, 15♀ (Vin.); S. Cortina d’Ampezzo, Lago d’Ajal, 1472 m , 18.08.53, 1♀ (Con.); Carnic Alps: Croce di Comelico Pass , r. 1600m , 31.09.80, 4♂, 4♀; Forni Avoltri, brook, 800m, 21.09.80, 1♂, 4♀ (Rav.). Carnic Prealps: S. Belluno, <Tassei, 400m, 12.10.08, 2♂, 4♀; NE. Belluno, S. Passo di Mauria , <Gias Refuge, spr. 1100m , 11.10.08, 1♀; tor., 1200m, 11.10.08, 1♂, 1♀; SE. Ampezzo, Sella Chiampon, W. slope of Verzégnis Mount, big spr., 800m, 11.10.08, 1♂, 9♀; Julian Prealps: E. Cividale, road to Stegna, spr. <Zamir, 200m, 29.12.95, 3♀; 11.10.09, 3♀; crossroad Stregna - Podgora, spr., 280m, 11.10.08, 3♂, 10♀. NE. Cividale, Montemaggiore  Cepletischis, Losaz, 900m, 1♀; spr.> Cepletischis, close to the Slovenian border, 600m, 11.10.08, 1♂, 2♀; N. Cividale, W. Breginj, Prossenico, spr., 11.10.08, 4♀ (Vin.). AUSTRIA: Several records from the North east Austrian Alps : Upper Austria: National Park Kalkalpen and Styria: Nationalpark Gesäuse; Pernegg, Bärenschützklamm, 21.00.06 , 1♂, 2♀, Lower Austria: Prein a.d. Rax , 11.09.99 , 7♂, 12♀; Urgerstal, 10.10.98, 4♀; as well as the East Austrian Alps (Carinthia: Nockberge, St. Oswald ; Saualpe, Ladinger Hütte, 23.09.00, 1♂, 2♀). SLOVENIA: Julian Prealps and Karawanken Mountains : SW Kobarid, <Livek, 400m , tor., 11.10.08, 1♀; spr., 11.10.08, 4♂, 10♀; W. Kobarid, Breginj , R., 11.10.08 , 4♀; spr. Stanovišče  Breginj, 11.10.08, 13♂, 13♀ (Vin.). Dolenja Trebuša, 420m, 29.08.92, 3♂, 1♀; Gorenja Trebuša Zrčin, reka Trebuščica, 290m, 29.08.92, 14♂, 1♀; Kozina Artviže povirje, Brsnica b., 700m, 16.11.90, 3♂, 6♀; Idrija, Vrh Zale, Zala R., 400m , 29.08.92, 41♂, 20♀; Vrzdenec Kisovnik, Kisovnik b., 360m, 31.08.91, 22♂, 2♀; Velike Lašče, Četež pri Turjaku, Granjevica b., 12.09.99, 2♂, 3♀; Čabar, pri izviru Čabranke, Čabranka b., 550m, 11.10.91, 3♂, 1♀; Ortnek, Zlati rep., Zastava b., 560m, 25.08.89, 13♂, 7♀; 5.10.89, 3♂, 4♀; Velike Lašče, Luknja, Zastava b., 550m, 9.09.89, 4♂, 1♀; Ljubljana, Javor, Panska R., 380m , 20.10.85, 4♂; Višnja gora, Dedni dol, Višnjica b., 380m, 15.09.99, 65♂, 27♀; Litija, Cerovica, Pustov Mlin, Stamarica b., 380m , 17.10.85, 1♂, 1♀; Tolmin, Rodne, Tolminka R., 170m , 24.08.89, 5♂, 1♀; Kranjska Gora, Pišnica, Velika Pišnica b., 850m , 2.10.89, 1♂, 2♀; Mojstrana, Vrata, Bistrica R. pod Kočo pri Peričniku, 700m , 28.08.84, 74♂, 11♀; Gozd Martuljek, Planina Martuljek, Martuljek b., 930m, 27.09.84, 11♂, 4♀; Kranjska Gora, Srednji vrh., Hladnik b., 920m , 27.09.84, 5♂, 12♀; 13.10.99, 10♂, 17♀; Idrija, Otalež, pritok Idrijce, 330m , 29.08.92, 151♂, 3♀, Jesenice, Planina pod Golico, Savske jame, 1150m , 19.09.92, 1♀; Jesenice, Javorniški rovt, Planinski dom Pristava, 975m , 21.09.84, 5♀; Mojstrana, Mlinca, Sava R., 640m , 14.09.89, 19♂, 8♀; 2.10.89, 19♂, 34♀; Mojstrana, Srednja Radovna, Klemen , Radovna R., 690m , 21.09.84, 1♂, 7♀; Bled, Spodnja Radovna, Radovna R., 730m , 9.11.89, 5♀; Jesenice, Koroška Bela, Bela b., 1100m , 24.08.85, 17♂, 9♀; Žirovnica, Karavanke, pod Valvazorjevim donom povirje Rečice, 1000m, 24.08.85, 12♂, 9♀; Žirovnica, Završnica, Završnica b., 1000m, 24.08.85, 22♂, 4♀; Polhov Gradec, Setnik, Jernejčkov graben, 470m, 31.08.91, 5♂; 21.10.91, 6♂, 10♀; Ljubelj, Korošica, Mošenik b., 950m, 24.08.93, 3♂, 5♀; Tržič, Podljubelj, Tominčev slap, 750m, 21.08.92, 13♂, 4♀; Tržič, Jelendol, Dolžanka b., 1050m, 21.08.92, 6♂, 5♀; Tržič, Grahovše, Lomščica b., 860m, 19.11.89; Tržič, Črna peč, Medvodje , Tržiška Bistrica R., 1200m , 4.08.92, 5♂; 17.09.92, 5♂, 7♀; Tržič, Košutnik, Medvodje, Košutnik b., 1150m, 24.08.93, 5♂, 11♀; Kamniška Bistrica, Kamniška Bistrica b., 600m, 29.09.86, 2♂, 6♀; Solčava, Logarska dolina pod slapom Rinka, 1000m , 19.09.92, 1♂, 17♀; Zgornje Jezersko, Roblek, Jezernica b., 970m , 29.08.90, 5♂, 18♀; Kamnik, Kališe, povirje, Volovljek b., 960m , 5.09.89, 8♂, 5♀; Kamnik, Krivčevo, Črna b., 640m , 11.09.92; Litija Volčja Jama , 16.10.85, 3♀ ; Gornji grad, Dol, Ragačnica b., 490m, 11.09.92, 3♂, 3♀ ; Črna na Koroškem, Kozar, reka Meža , 630m, 28.08.91, 9♂, 21♀ ; Podpeca, Mitnik, Helenski b., 900m, 28.08.91, 1♂, 3♀ ; 23.10.91, 2♀; Vransko, Motnik, Motnjiščica b., 400m, 7.09.99, 4♂, 4♀ ; Črna na Koroškem, Javorje, Javorski b., 730m, 20.09.91, 1♂, 3♀ ; Dravograd, Libeliče, Ridlov graben b., 420m, 11.09.84, 3♂, 10♀ ; Ravne na Koroškem Strojna Zelenbreški b., 550m, 28.01.91, 2♂, 2♀ ; Mirna, Cirnik , Mirna R., 280m, 30.08.91, 22♂ ; Trebnje, Roženberk, Kostanjščica b., 15.09.99, 31♂, 37♀ ; Gorjanci, Dolž, Klamfer b., 660m, 25.10.90, 12♂, 10♀ ; Gorjanci, Cerov log, Pendirjevka b., 500m, 28.09.90, 10♂, 10♀ ; Kostanjevica na Krki, Črneča vas, Sušica b., 340m, 10.10.84, 8♂, 19♀ ; Sava, Polšnik, Sopota b., 680m, 24.09.91, 4♀ ; Dravograd, Kozji vrh, Velka b., 550m, 20.09.91, 4♀ ; Vuzenica, Sveti Primož na Pohorju, Plavžnica b., 480m, 11.09.84, 2♂, 9♀ ; Rimske Toplice, Jurklošter, Lahomščica b., 360m, 14.09.84, 1♂, 2♀ (Siv.) ; Pohorje Mountains, Koča na Pesku, povirje reke Oplotnice , 1360m, 15.10.94, 1♂, 8♀ ; Pohorje, Pesek, povirje nad Ribnikom , 1360m, 15.9.99, 5♀ ; Pohorje, Koča na Pesku, povirje reke Radoljne , 1300m, 28.10.89, 1♂, 4♀ ; Sevnica, Planina pri Sevnici, desni pritok Sevnične , 500m, 14.09.84, 6♂, 7♀ ; Slovenske Konjice, Preloge pri Konjicah, Polenščica b., 360m, 4.11.84, 3♂, 7♀ ; Pohorje Osankarica, pri Domu na Osankarici , 18.09.99, 4♂, 3♀ ; Kazjansko , Kozje, Bistri graben b., 290 m, 6.09.85, 4♂, 12♀ ; Poljčane, Lovnik, Bela b., 18.09.99, 6♂, 9♀ ; Slovenska Bistrica, Zgornja Bistrica, Bistrica b., 6.10.89, 1♂, 2♀ ; 18.09.99, 12♂; Kozjak, Zgornji Slemen Bresterniški b., 550m, 7.09.95, 2♂, 6♀ ; Jurski, vrh, Gaj nad Mariborom, Radečki b., 400m, 12.09.84, 1♂, 3♀ ; 7.09.95, 10♂, 14♀; Dobovec pri Rogatcu, Ferčec , Sotla R., 280m, 4.09.90, 4♂ (Siv.).

Complementary Description. Wings of normal length, except brachypterous specimens occurring in the Slovenian Pohorje mountains.

Male ( Figs 8-9 ). Terga I-V normal; posterior part weakly sclerotized. Tergite VI with strong, not divided antecosta and median bell-shaped membranous field. Tergite VII with two strong triangular teeth separated by a notch as wide as the width of one of them and projecting up and rearward from the antecosta. Tergite VIII: antecosta interrupted for more than half the segment’s width; its free ends are sharp; the median membranous field is bell-shaped. Tergite IX similar, the median membranous field carries a trapezoidal pigmented sclerite with two less pigmented spots medially, though in some strongly sclerotized specimens the lighter spots are hardly visible. Tergite X: anterior margin bilobed, posterior margin with wide rounded median notch. Epiproct strong, mushroom-shaped, with short stalk. Cerci long and slim, with vestigial second segment. Sternite IX: vesicle small, without stalk. Specilla nearly straight, getting thinner toward the apex. Paraprocts: styles long, nearly reaching the specilla tips, and ending in an acute tip ( Fig. 9 ). Paraproct base without lateral lobe, and carrying a posterior sclerotized expansion between the style and the cercus base; the base of the paraprocts is split in two parts that are separated by a membranous field, the anterior part is connected to the base of the specillum and the posterior part is prolonged rearward by the styles ( Fig. 9 ).

Female ( Fig. 10 ). Subgenital plate wide, rounded, most frequently less pigmented medially that on its edges, covered with long hairs. The two lobes are rather long, finger shaped, and separated by a wide sub-triangular notch.

Affinities. This species is closely related to L. juliettae sp. n. and L. muranyii sp. n. (see previous descriptions of L. muranyii and L. juliettae ).

Distribution. In the Italian Alps, its southern limit seems to be the Chisone valley, and on the French slope, the Vercors and Dévoluy massifs. In Italy it extends northwards and eastwards in the Graian Alps, Dora Baltea valley, Pennine Alps (Biellais mountains), up to the Swiss Ticino, in the eastern part of the Italian Alps it occurs in the Dolomites. In Austria it covers the whole alpine area (Vorarlberg, Tyrol, Salzburg, Carinthia, Upper and Lower Austria) as well as the central midlands between 300m and 1800m. Beside the Alps, L. braueri was reported from the whole Hercynian ranges (Sold{n et al 1998), the West, North and N.E. Carpathians ( Czech Republic, Slovakia, Poland, Ukraine - Sold{n et al 1998, Krno 2003, Fialkowski & Kittel 2002, Zhiltzova 2003) and also in the E. foothills of the Alps (Andrikovics & Mur{nyi 2001).

Figures

Figs. 8-10. Leuctra braueri kempny: male abdominal tip in dorsal view (8), male genitalia in ventral view (9), female subgenital plate in ventral view (10).