Sericostoma dimcay, Sipahiler, 2021

Sipahiler, Füsun, 2021, Males of the genus Sericostoma Latreille 1825 in Turkey (Trichoptera Sericostomatidae), Zootaxa 4965 (3), pp. 483-500 : 491-494

Sericostoma dimcay sp. n.

( Figs 26–29 )

Material: Holotype male: Turkey, Antalya, Alanya, Dimçay , 36°31′N, 32°18′E, 19.v.1986, (CD: U-57), leg. and coll. SİPAHİLER.

Paratypes: 4 males, 2 females (pupae): Same data as for holotype. Alanya, Demirtaş direction, Sapadere, 341 m, 36°31′N, 32°18′E, 20.v.2009 , 2 males (pupae), (CD: U-163),

General description. Wings of pupa dark brown, other parts pale yellowish, length of male pupa 10.0–11.0 mm (mean = 10.5 mm, n = 2), of female pupa 10.0–12.0 mm (mean = 11.0 mm, n = 2).

Description of male genitalia ( Figures 26–29 ): In lateral view, segment IX roundly dilated anterolaterally in 80° angle. Preanal appendages long, clavate, apically rounded; in dorsal view, long and thin. In dorsal view, segment X triangular, acute apically. In lateral view, lateral prolongations of segment X with basoventral branch triangular, acute, slightly bent caudad; mesoventral branch very long, rather narrow, and 4/5 as long as dorsal branch; dorsal branch about 1.5X thicker than mesoventral branch. In lateral view, inferior appendages each with dorsal branch dilated dorsally on apical half; in ventral view, ventral branch sinuate, its apex broadly quadrangular and curving mesad. In lateral view, phallic apparatus narrow at base, second half dilated, 2.0X as thick as base, basoventral carina triangular and about 2.0X as long as thickness of base.

Diagnosis: Sericostoma dimcay sp. n. resembles S. alakir sp. n. The main differences are explained in the diagnosis of S. alakir sp. n. above.

Remarks: Sericostoma dimcay sp. n. lives in mountain streams with rapidly flowing water.

Figures

FIGS. 26–29. Sericostoma dimcay sp. n., male: 26–29, male genitalia: 26, left lateral; 27, dorsal; 28, ventral 29, phallic apparatus, left lateral. Abbreviations: bb = basoventral branch of lateral prolongation of segment X; bc = basoventral carina; db = dorsal branch of lateral prolongation of segment X (paired); dl = dorsal lobe of inferior appendage (paired); dbi = dorsal branch of inferior appendage (paired); dl = dorsal lobe of dorsal branch of inferior appendage (paired); lp = lateral prolongation of segment X (paired); mb: mesoventral branch of lateral prolongation of segment X (paired); mp = maxillary palp (paired); pa = preanal appendage (paired); sıx = segment IX; sx = segment X; vb = ventral branch of inferior appendage (paired).