Drusus siveci Malicky, 1981

Vitecek, Simon, Kucinic, Mladen, Olah, Janos, Previsic, Ana, Balint, Miklos, Keresztes, Lujza, Waringer, Johann, Pauls, Steffen U. & Graf, Wolfram, 2015, Description of two new filtering carnivore Drusus species (Limnephilidae, Drusinae) from the Western Balkans, ZooKeys 513, pp. 79-104 : 93-94

Taxon classification Animalia Trichoptera Limnephilidae

Drusus siveci Malicky, 1981 Fig. 10

Material examined.

5 males: Bosnia and Herzegovina, Sutjeska National Park, stream close to Čermerno; N43.2650, E18.5927; leg. Previšić, Miliša; 04.VII.2012; in coll. AP.

Type locality.

Montenegro, Andrijevica, Gnjili Potok.

Description.

Adults. Habitus yellow to fawn; sternites and tergites fawn; cephalic and thoracic setal areas pale; cephalic, thoracic and abdominal setation blond; legs yellow to fawn; haustellum and intersegmental integument pale, whitish; wings fawn, with blond to brown setae on veins and blond setae on membrane. Male maxillary palp 3-segmented, forewing length 10-12 mm, spur formula 1 –3– 3.

Male genitalia (Fig. 10). Tergite VIII fawn, setation concentrated dorsally and posterolaterally, with slight dorsal protrusion; spinose area in lateral view approximately flat, in dorsal view oval; flanked by membraneous, less sclerotized areas. Segment IX in lateral view with medial caudad protrusion, ventrally irregularly concave distally; in caudal view wider dorsally than ventrally; with distinct rounded triangular protrusion in dorsal half (best seen in dorsal and ventral views). Superior appendages in lateral view suboval, curved obtusely caudad in proximal half, proximal half with distinct rounded protrusion, in dorsal view slightly concave medially; medial transverse section subcircular. Intermediate appendages in lateral view with pointed, hook-like tip arching dorsad; in dorsal and caudal views the tips fused; in caudal view subtriangular. Inferior appendages in lateral view conical, short, blunt, posteroventrally somewhat concave; in ventral view with medial protrusion and distinct notch. Parameres simple, with single bulbously based tine in distal third.

Female and pupa unknown; larva in key presented by Vitecek et al. (in press).

Distribution.

Micro-endemic of the Dinaric Western Balkans (ecoregion 5) (Fig. 11).