Amphinemura Ris, 1902

Yasri-Cheboubi, Nabila, Vinçon, Gilles & Lounaci, Abdelkader, 2016, The Nemouridae from Algeria (Insecta: Plecoptera), Zoosystema 38 (3), pp. 295-308 : 296

Genus Amphinemura Ris, 1902

Amphinemura berthelemyi

Vinçon, Yasri & Lounaci, 2013 ( Figs 1 ; 2 ; 3 )

Amphinemura berthelemyi Vinçon, Yasri & Lounaci , in Yasri et al. 2013: 29.

MATERIAL EXAMINED. — Eastern Algeria. El Kala, Algerian slope of Khroumir mountains : Oued Haddada ( Fig. 3A ), brook below Djebel Haddada (Haddada village), 180 m, 7. V.2010, 12 larvae ; 25.III.2011, 82 larvae ; 23.IV.2011, 72 larvae; 12. V.2011, 8 larvae (coll. NY); 3.III.2012, 1 ♂ (coll. VIN), 3♂, 2 ♀ ( ZML) ; 24.III.2012, 3 ♂, 2 ♀ ( MNHN). Oued Dar Essalem ( Fig. 3B ), other brook below Djebel Haddada, 190 m, 7. V.2010, 20 larvae ; 25.III.2011, 130 larvae (coll. NY) ; 23.IV.2011, 120 larvae (coll. NY), 3 ♂, 1 ♀ (coll. VIN) ; 12. V.2011, 26 larvae; 3.III.2012, 2 ♂, 1 ♀ ; 24.III.2012, 7 ♂, 9 ♀; 2. V.2012, 5 ♂, 17 ♀ (coll. NY).

Small Kabylia. Above Aokas, above Pass, second brook left side of road W 16, 900 m, 18.IV.2012, 1 ♂, 2 ♀ (coll. VIN).

Great Kabylia. Between Tagma Pass and Kebouche Adekar, below Djebel Toukra, 1000 m, 17.IV.2012, 1 ♂ (coll. VIN).

Central Algeria, Djurdjura. NE Tizi Ouzou, Illilten, 1010 m, 11.V.2009, 1♂ nymph ; Ath Zikki, 1050 m, 15.V.2009, 1♂ nymph (coll. H&L).

Central Algeria, Tell Atlas. near Blida, Chiffa Valley, oued Chiffa above junction with “Ruisseau des Singes” brook, 270 m, 28.III.2012, 1 ♂ (coll. NY).

GEOGRAPHICAL DISTRIBUTION AND ECOLOGY. — A. berthelemyi is an endemic species of the Central Maghreb (W Tunisia and E Algeria). It has a wide distribution extending from the Tunisian Khroumiry up to the Algerian Tell Atlas near Blida (Fig. 11). In Algeria, it extends from the El Kala area to the Blidean Atlas (Fig. 12). It is very abundant in streams in the area of El Kala. In Kabylia and Blidean Atlas, it is scarcer. In Morocco, the species is absent and replaced by the closely related A. chiffensis Aubert, 1956 . It is a crenophilic species which occurs in brooks and torrents between 200 and 1000 m a.s.l. The adults emerge in spring ( III-V).

DIAGNOSIS. — A. berthelemyi is related to A. chiffensis from which it differs, in the male imago, by the median lobe of the paraprocts enlarging in its distal part and carrying a set of strong apical setae ( Fig. 1A, B ); in A. chiffensis the median lobe is not enlarged and bald at the tip ( Yasri et al. 2013: figs 4, 5). The spiny bulge of the epiproct is clearly prominent in A. Berthelemyi ( Fig. 1G ) instead of being hardly pronounced as in A. chiffensis ( Yasri et al. 2013: figs 6, 7). Female subgenital plate with vaginal lobes clearly separated by a shallow notch in A. berthelemyi ( Fig. 1C ), while closely connected in A. chiffensis ( Yasri et al. 2013: fig. 3). Nymphal pilosity much stronger in A. berthelemyi ( Fig. 2 A-D) than in A. chiffensis ( Yasri et al. 2013: figs 8-11).

Figures

FIG. 1. — Amphinemura berthelemyi Vinçon, Yasri & Lounaci, 2013: A, ♂ abdomen dorsal view; B, ventral view; C, ♀ abdomen ventral view; D, paraproct lateral view; E, idem specimen from Aokas; F, dorsal view; G, epiproct lateral view (Yasri et al. 2013). Scale bars: A, B, D-G, 0.5 mm; C, 1 mm.

FIG. 2. — Amphinemura berthelemyi Vinçon, Yasri & Lounaci, 2013 larva: A, pro and meta-thorax dorsal view; B, tip of the abdomen dorsal view; C, anterior femora dorsal view; D, first segments of cercus (Yasri et al. 2013). Scale bars: A, C, D, 0.5 mm; B, 1 mm.

FIG. 3. — Collecting sites of Amphinemura berthelemyi Vinçon, Yasri & Lounaci, 2013 and Protonemura algirica bejaiana Vinçon & Murányi, 2009 in the El Kala National Park, El Taref, Eastern Algeria. A, Haddada brook (180 m); B, Dar Essalem brook (190 m).