Alloperla picta Zwick 1973
Creators: name: Hwang, Jeong Mi
name: Kang, Ji Hyoun
name: Murányi, Jun Mi Hur and Dávid
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Chloroperlidae
Alloperla
Alloperla picta

description: 1. Alloperla picta Zwick, 1973 (Figs. 1-3, 20)   
 Alloperla picta Zwick, 1973: 165.   
 Material examined. South Korea: 2♂ (KU), Chungcheongbuk-do, Danyang-gun, Gagok-myeon, Eouigok-ri, Saebat, 2012.V.25, Bae YJ (by Sweeping); 1♂, 2$(KU), Gangwon-do, Wonju-si, Sillim-myeon, Chiaksan National Park, 2016.V.14, Bae YJ (by Sweeping); 3♂, 2$(EKCU), Gangwon-do, Wonju-si, Sillim-myeon, Seongnam-ri, Chiaksan National Park, Saem Spring beneath Sangwon-sa, 1025 m, 37°18.284′N 128°03.262′E, 2016.V.14, Hwang JM, Murányi D; 1$(EKCU), Gangwon-do, Wonju-si, Sillim-myeon, Seongnam-ri, Chiaksan National Park, lower section of the forest brook towards Sangwon-sa, 850 m, 37°18.047′N 128°03.535′E, 2016.V.14, Hwang JM, Murányi D; 2♂, 1$(KU), Gangwon-do, Inje-gun, Girinmyeon, Bangdong-ri, Bangtaesan Natural Recreation Forest, 690 m, 37°54′29.57″N 128°24′25.14″E, 2019.V.11 - VI.21, Malaise trap, Ham DS, Park SH; 3♂, 1$(KU), Gangwon-do, Pyeongchang-gun, Jinbu-myeon, Odaesan-ro, Odaesan National Park, Mireukam Temple, 1296 m, 37°48′12.82″N 128°34′03.02″, 2020.VI.23 - VII.28, Malaise trap, Ham DS, Hwang YM, Kang JH, Park SH; North Korea: Holotype $ (HNHM), Gangwon Province, Kosong-gun, Kumgang Mts, Manmul-sang Rock (locality No. 68), 38°43′N 128°07′E, 1970.V.30, Mahunka S, Steinmann H.   
 Description of the male adult. Coloration and pattern of available males and females fully agrees with the holotype female (compare Fig. 20 with Figs. 27 - 28 in Zwick, 1973). Forewing length of males 6.8 - 7.3 mm, males 7.8 - 8.3 mm (holotype female 8.5 mm).   
 Antecosta of tergum 9 well sclerotized, medial portion slightly rised in lateral view but not modified into cones or teeth (Fig. 1). Caudal margin of tergum 9 widely and roundly excised, its lateral portions are darkly colored (Fig. 2). Sternum 9 developed into rounded subgenital plate, laterocaudal margins of segments 8 - 9 are armed with comb-like setae. Tergum 10 completely divided into rounded hemiterga by the large epiproct; their antecosta well sclerotized, posterior half of hemiterga darkly coloured (Fig. 2). Epiproct consists of large basal anchor with lateral arms, distinct paragenital plates and elongated, curved epiproct tip connected to basal anchor with weakly sclerotized lewer arm (Figs. 1 and 3). The basal anchor is elongated triangular, with rounded anterior portion hidden beneath the posterior excision of tergum 9 (Fig. 1); lateral arms narrow finger-like, directed slightly posteriorly. Paragenital plates narrow and long, curved like a question mark. The epiproct tip connected to the lower arm with a joint, basal portion widened and complexly sclerotized, then continued in evenly sclerotized apical portion that reaches back to the anterior portion of basal anchor; the tip is straight in posterior view with keeled, arrow-like apex, distinctly curved ventrally in lateral view, medially narrowed and apically widened again, with short and rounded, membranous apex beneath the dorsal arrow-like portion (Figs. 1 - 3). Penial sac unarmed, lobes not observed.   
 Affinities. While the female subgenital plate clearly indicates Alloperla, the terminalia of the male reminds to regional Sweltsa and clearly different from Asian Alloperla. Both coloration and terminalia reminds the most to the males of S. bilobata Mo, Ye, Wang & Li, 2020 and S. brevihamula Dong, Cui & Li, 2018, but the lateral view of the epiproct tip distinguish A. picta from all other Sweltsa and Alloperla.   
 Distribution. Korea (South and North).   
 Remarks. This species was previously known only from the female holotype collected in North Korea (Zwick, 1973). We have described the male of this species based on several specimens collected with females in South Korea.
description: Published as part of 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, pp. 326-331 in Journal of Species Research 12 (4) on page 327, DOI: 10.12651/JSR.2023.12.4.326, http://zenodo.org/record/13161699