Drusus krpachi Kucinic , Graf & Vitecek

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 : 80

Taxon classification Animalia Trichoptera Limnephilidae

Drusus krpachi Kucinic, Graf & Vitecek sp. n. Fig. 1

Material examined.

Holotype. 1 male: Macedonia, Mavrovo National Park, Korab Mountains, česma Elem; N41.857, E 20.625; leg. Kučinić, Krpač, Mihoci; 15.VIII.2011. Currently deposited in coll. WG, will be deposited in the Croatian Natural History Museum, Zagreb, Croatia.

Paratypes.

3 males: Macedonia, Mavrovo National Park, Korab Mountains, Reč; leg. Krpač, Mihoci, Kučinić; 01.VIII.2011. Currently deposited in coll. MK, two paratypes will be deposited in the Macedonian Museum of Natural History, Skopje, Republic of Macedonia, one paratype will be deposited in coll. WG.

Type locality.

Macedonia, Korab Mountains.

Diagnosis.

Males of the new species are most similar to Drusus macedonicus , but exhibit (1) a distally straight ventral half of segment IX; (2) a dorsally straight tip of the intermediate appendage distinctly separated by a proximal indentation and with small proximal and distal rough protrusions; (3) a conical inferior appendage with a proximal dorsal triangular protrusion; (4) parameres with three tines in the distal third in dorsal view. Drusus macedonicus males have a distally concave ventral half of segment IX, intermediate appendages with two rough rounded dorsad protrusions but lacking a distinct proximal indentation, distally tapering inferior appendages, and parameres with a single tine in the distal third in dorsal view.

Description.

Adults. Habitus yellow; sternites and tergites fawn; cephalic and thoracic setal areas pale; cephalic and thoracic setation blond, abdominal setation scarce, blond; legs fawn; haustellum and intersegmental integument pale, whitish; wings yellow with blond setae on veins and the membrane. Male maxillary palp 3-segmented. Forewing length 11 mm, spur formula 1 –3– 3.

Male genitalia (Fig. 1). Tergite VIII (tVIII) fawn, setae absent; spinose area in lateral view approximately flat with slight dorsocaudal protrusion in cranial half, in dorsal view suboval; flanked by membranous, less sclerotized areas. Segment IX (IX) in lateral view ventrally straight distally; in caudal view dorsally approximately as wide as ventrally; with rounded lateral protrusion in the dorsal half (best seen in ventral view). Superior appendages (sup) in lateral view suboval, curved obtusely caudad in proximal third, proximally with slight dorsal protrusion, longest in anterioposterior axis: approximately 2.5 times longer than high; in dorsal view proximally slightly concave medially; medial transverse section oval. Intermediate appendages (int) in lateral view with subtriangular tip, rough areas concentrated on dorsal proximal and dorsal distal aspect; in dorsal view tips separated, oval, distally converging; in caudal view approximately triangular. Inferior appendages (inf; gonopods sensu Snodgrass 1935) in lateral view conical, proximally wide, distally slender, with proximal triangular protrusion dorsally; in ventral and dorsal view with small medial projection and slight notch. Parameres simple, in dorsal view with 3 tines in distal third: 2 mediolateral, 1 dorsal.

Female and pupa unknown. Larval description and indentification key provided by Vitecek et al. (in press).

Etymology.

Named after V. Krpač, Macedonian entomologist and collector of the species.

Distribution.

Micro-endemic of the Korab Mountains, Hellenic Western Balkans (ecoregion 6, Illies 1978) (Fig. 11).