Rhyacophila zwickorum Malicky 1972

Sipahiler, Füsun, 2013, Revision of the Rhyacophila stigmatica Species Group in Turkey with descriptions of three new species (Trichoptera, Rhyacophilidae), Zootaxa 3669 (1), pp. 43-55 : 53

Rhyacophila zwickorum Malicky 1972

( Figures 30–39 )

Material examined. Turkey, Rize, Çamlıhemşin, Holovit, 22.viii.1983, 4 males, 1 female (CD: A-41); Rize, Ayder, 1100 m, 5.ix.1988, 2 males (CD: A-86); same place, 1.viii.1989, 1400-1600 m, 2 males (CD: A-108); same place except Aşaġı Kavron, 2000 m, 8.viii.1989, 3 males (CD: A-110); Rize, Çamlıhemşin, Zilkale, Tozkapan, 850 m, 20.viii.1992, (light), 3 males (CD: A-294); all leg. and coll. Sipahiler.

Rhyacophila zwickorum Malicky 1972 was described based on material collected from Ardeşen (Rize); the redescription given below is also based on material collected from Rize Province.

General description. Antennae, maxillary palps, legs, and wings in alcohol brown. Length of each anterior wing of male 7.5– 8 mm (n=5).

Male genitalia ( Figures 30–34 ): Segment IX with apicodorsal lobe ( Figs. 30, 31 ). Sclerotized bands articulating on segment X rather long ( Figs. 30, 31 ); in lateral view each with dorsal apex pointed and posterior edge rounded ( Fig. 31 ); in caudal view segment X with posterolateral edges convex laterally and mesally, with narrow, vertical sclerotized tubercle in middle ( Fig. 32 ). Coxopodite of each inferior appendage having apical edge of sclerotized basal tendon with hook-shaped projection on ventral corner; harpago somewhat dilated on posterodorsal edge, tip blunt ( Fig. 30 ). In lateral view, dorsolateral processes of phallotheca long, almost reaching apex of phallicata, each with basal 1/3rd three-four times as tall as distal 2/3rds, triangular, acute at dorsal tip, distal 2/3rds tapered to sharp point ( Fig. 33 ); in dorsal view, these processes very broad at their bases, tapering to acute apices ( Fig. 34 ); large dorsomesal band of phallicata covered with small tubercles ( Fig. 34 ); apical portion of phallicata with narrow sclerotized band ( Fig. 34 ); paramere slender, dilated at oval apex, its crown densely fringed with about 34 long, plumose spines ( Fig. 33 ).

Female genitalia ( Figs. 35–39 ): In lateral view, sclerotized part of segment VIII rather short, about 1.1 times as long ventrally as tall anteriorly, and posterolateral edges each irregularly crenulate and slightly concave above mesal posteroventral lobe ( Fig. 35 ); in dorsal view, fully sclerotized and posterior edge convex ( Fig. 36 ); in ventral view, median lobe of posterior edge ~4 times as broad as long, evenly rounded ( Fig. 37 ). Anterior process of bursa copulatrix oval and its posteroventral edge smooth in lateral view ( Fig. 38 ); posterior process broad subdistally and becoming very narrow towards tip in lateral and ventral views ( Figs. 38, 39 ).

Figures

FIGURES 30 – 34. Rhyacophila zwickorum, male genitalia. 30, left lateral, with left inferior appendage absent, revealing mesal surface of right inferior appendage; 31, dorsal; 32, segment X, caudal; 33, phallic apparatus, left lateral; 34, phallic apparatus, dorsal. a. s = anal sclerite; b. t. c = basal tendon of a coxopodite; cox = coxopodite (first article of an inferior appendage, paired); d. l. s = dorsal lobe of segment IX; d. p. p = dorsal process of phallotheca (paired); har = harpago (second article of an inferior appendage, paired); par = paramere; phal = phallotheca; phalc = phallicata; sb = sclerotized band (paired); s. IX = abdominal segment IX; s. X = abdominal segment X.

FIGURES 35 – 39. Rhyacophila zwickorum, female genitalia. 35, left lateral; 36, dorsal; 37, ventral; 38, bursa copulatrix, left lateral; 39, bursa copulatrix, ventral. a. p. b. c = anterior process of bursa copulatrix; m. l = mesal posteroventral lobe of venter VIII; p. p. b. c = posterior process of bursa copulatrix; s. VIII = abdominal segment VIII.