Epeorus (Caucasiron) guttatus (Braasch & Soldán, 1979)

Figs 13, 14

Iron guttatus Braasch & Soldán, 1979 .

Epeorus (Iron) guttatus (Braasch & Soldán, 1979): Kluge 1988: 296.

Epeorus (Caucasiron) guttatus (Braasch & Soldán, 1979): Kluge 1997: 234.

Iron (Caucasiron) guttatus (Braasch & Soldán, 1979): Braasch 2006 b: 87.

Type locality.

Kazakhstan: Issyk River near Alma-Ata.

Examined material

(deposited in IECA). • 1 larva: paratype from type locality. • 1 larva (barcoded specimen: GU 3): Kyrgyzstan: Chuy Region, left tributary of Ala-Archa River, 1717 m a. s. l., 42°37.743'N, 74°29.293'E (code: 1 Kyrgyz), 26. 05. 2016, Palatov D. M. leg. • 6 larvae (barcoded specimen: GU 71 K): Kyrgyzstan: Osh Region, right tributary of Kulun River, 2060 m a. s. l., 40°29.516'N, 74°09.077'E (code: 71 Kyrgyz), 01. 05. 2017, Palatov D. M. leg. • 3 larvae (barcoded specimen: GU 1): Kyrgyzstan: Osh Region Kara-Bel River, 2135 m. a. s. l., 40°30.300'N, 74°10.621'E (code: 73 Kyrgyz), 01. 05. 2017, Palatov D. M. leg.

Distribution, habitat, and biology.

Tian Shan: Kazakhstan (Braasch and Soldán 1979; Kluge 2015), Kyrgyzstan; Pamir: Tajikistan (Kluge 2015) (Fig. 1). The species inhabits mountain streams with rapid turbulent flow and bed substrate formed by stones and boulders (Kluge 2015). The altitude of our sampling sites ranged between 1717 and 2135 m a. s. l. Adults were recorded from May to September (Kluge 2015).

Main morphological diagnostics of the larva.

i) femora with a median spot (Fig. 13 I), ii) abdominal sterna with a pair of oblique stripes and a large median macula (Fig. 13 H), iii) coloration of abdominal terga as on Fig. 13 F, G, iv) tergum X with a well-developed posterolateral projection (Fig. 14 L, arrow), v) dorsal surface of femora with rounded spatulate setae (Fig. 14 D), vi) abdominal terga with elongated (sporadically rounded) spatulate setae (Fig. 14 E, F), vii) gill plates VII wide (in natural position from ventral view) (Figs 13 J, 14 J), viii) projection on gill plates III well-developed (Fig. 14 H), ix) denticles along posterior margin of abdominal terga dense, irregular, and pointed (Fig. 14 F).

Remarks.

Morphology. Description of adult stages in Kluge (2015).