Alloperla tiunovae Teslenko, 2009

Hwang, Jeong Mi, Kang, Ji Hyoun & Murányi, Jun Mi Hur and Dávid, 2023, Poorly known Chloroperlidae (Plecoptera) from Korea, addressing a certain problem of limits between Alloperla Banks, 1906 and Sweltsa Ricker, 1943, Journal of Species Research 12 (4), pp. 326-331 : 328

2. Alloperla tiunovae Teslenko, 2009 ( Figs. 4-11 , 21 )

ḦṄÜŖḤȒAE래 (ṵḡ)*

Alloperla tiunovae Teslenko, 2009: 106 .

Triznaka (?) sp. Zwick, 1973: 165.

Material examined. South Korea: 2♂, 3$ ( KU): Jeju-do, Seogwipo-si, Ieodo-ro , 33°14′6.13″N 126°29 23.20″E, 2019. VI .05, alt. 24 m, C Lim & J Lee (by Sweeping); 2♂, 8$ ( KU) , 1♂ ( NIBR, NIBRIN0000942755 ): Jeju-do, Seogwipo-si, Donnaeko-ro, Donnaeko Valley , 33°17′59.10″N 126°34′54.38″E, 2021. VI .13, alt. 280 m, Hwang JM & Lee DH (by Sweeping); 3♂ ( KU): Jeju-do, Seogwipo-si, Donnaeko-ro, Donnaekogyo (Br.), 33°17′54.3″N 126°35′21.8″E, 2022. V .30, alt. 24 m, Bae YJ (by Sweeping); North Korea: 3$ ( HNHM), Gangwon Province, Kosong-gun, Kumgang Mts, Onjong-ri , Kosong Stream below Hotel Go-song (localities No. 52, 54), 38°40′N 128°15′E, 1970. V .29, Mahunka S, Steinmann H.

Diagnosis. General body color pale, weakly sclerotized ( Fig. 21 ). Male: Abdomen with stripe, abdominal tergite 9 slightly elevated posteriorly. Epiproct pale brown, moderately sclerotized, sharply narrows toward its base, long, widened and rounded at apex ( Figs. 4, 5, 9 - 11 ). Female: General pattern similar to males. Subgenital plate short and widely rounded ( Figs. 7, 8 ).

Distribution. Korea (new record), Russia (Far East).

Remarks. This species was hitherto known only from Russia ( Teslenko, 2009; DeWalt et al., 2023). Most of the Korean specimens were collected from Jeju-do by sweeping. This is the species tentatively reported as Triznaka (?) sp. by Zwick (1973).

Figures

Figs. 4-11. Characters of Alloperla tiunovae Teslenko, 2009. 4: male terminalia, dorsal view; 5: male terminalia, lateral view; 6: female head and pronotum, dorsal view; 7: female terminalia, ventral view; 8: female terminalia, lateral view; 9: male epiproct and adjacent sclerites, dorsal view; 10: male epiproct, lateral view; 11: male epiproct, dorsocaudal view. Scale bar=0.5 mm.

Figs. 20-22. Habitus of Korean Chloroperlidae. 20: Alloperla picta Zwick, 1973, male; 21: Alloperla tiunovae Teslenko, 2009, male; 22: Haploperla maritima Zhiltzova & Levanidova, 1978, male. Scale bars=1 mm (photograph by Wongyu Lee).