Phanoperla huanghuye, Chen, 2020

Chen, Zhi-Teng, 2020, First record of the genus Phanoperla Banks, 1938 (Plecoptera: Perlidae) from mainland China, with description of a new species, Zootaxa 4718 (2), pp. 230-238 : 231-233

publication ID	https://doi.org/ 10.11646/zootaxa.4718.2.4
publication LSID	lsid:zoobank.org:pub:9E4F7E47-6CF3-48CC-9558-62CF7CAFB721
DOI	https://doi.org/10.5281/zenodo.5920782
persistent identifier	https://treatment.plazi.org/id/03C9D347-BE65-E90A-FF5E-B700FC1BF856
treatment provided by	Plazi
scientific name	Phanoperla huanghuye
status	sp. nov.

Treatment

Phanoperla huanghuye View in CoL sp. nov.

Figs. 2–10 View FIGURE 2 View FIGURE 3 View FIGURE 4 View FIGURE 5 View FIGURE 6 View FIGURE 7 View FIGURE 8 View FIGURE 9 View FIGURE 10 .

Adult habitus. General color yellow, patterned with brown ( Figs. 2 View FIGURE 2 , 3A View FIGURE 3 ). Biocellate; head slightly wider than pronotum, with a dark ocellate stigma and a frontal stigma ( Fig. 2C View FIGURE 2 ). Antenna slender and dark brown, longer than abdomen. Pronotum pale, margins and sutures dark brown, covered with obscure rugosities. Wing membrane subhyaline, veins dark brown ( Fig. 4 View FIGURE 4 ). Coxae pale; apex of femur, apex of tibia and third tarsal segment dark brown. Cercus pale, covered with thick bristles, with about 36 segments.

Male. Body length ca. 19.0 mm; forewings length ca. 21.0 mm, hindwings length ca. 19.0 mm ( Figs. 2 View FIGURE 2 , 4 View FIGURE 4 ). Tergum 7 with a median patch of sensilla basiconica, number of which varies among individuals, from 1 to about 10 ( Fig. 5 View FIGURE 5 ). Median area of tergum 8 with an oval patch of sensilla basiconica, the sensilla basiconica patch sometimes interrupted medially, divided into two smaller patches. Tergum 9 with a butterfly-shaped patch of sensilla basiconica, the patch about 2X wider than the sensilla basiconica patch on tergum 8. Anterior half of tergum 10 cleft, with a membranous median area; posterior margin of tergum 10 notched, connected with a coniform membrane. Hemitergal lobes curved and contiguous; each hemitergal lobe with an inner hump covered by tiny sensilla basiconica; apical half of each hemitergal lobe strongly compressed from dorsal view, ventroapical margin fringed with a row of long, thick spines ( Figs. 5 View FIGURE 5 , 6B View FIGURE 6 , 7 View FIGURE 7 ). Metasternum, abdominal sterna 5–7 each with a median patch of dense bristles ( Fig. 2B View FIGURE 2 ). Paraprocts unmodified, apices dark ( Fig. 6A View FIGURE 6 ). Aedeagus ( Fig. 8 View FIGURE 8 ) mostly membranous, slightly curved ventrally, and constricted at mid-length; base of ventral aspect strongly sclerotized, connected with a small oval sclerite ( Fig. 8C View FIGURE 8 ); dorsal aspect with a subapical lobe; apex membranous, irregular, and concave; basal half of aedeagus covered with spinules on dorsal surface ( Fig. 8E View FIGURE 8 ); apical half of aedeagus with a continuous patch of stout spines surrounding lateral and ventral surfaces, the spine patch forming a triangular shape on ventral surface ( Fig. 8D View FIGURE 8 ).

Female. Body length ca. 23.0 mm; forewings length ca. 27.0 mm, hindwings length ca. 24.0 mm ( Fig. 3A View FIGURE 3 ). General color and pattern similar to male. Posterior half of sternum 8 concaved medially, with a sclerotized inner margin, embracing a pale, hexagonal subgenital plate ( Fig. 3B View FIGURE 3 ). Paraprocts membranous, unmodified.

Egg. Egg length ca. 800 µm, equatorial width ca. 680 µm ( Fig. 9 View FIGURE 9 ). Color dark brown, oval in shape; collar dark, wide and short. Chorion covered throughout with uniform, circular punctations.

Type material. Holotype: male, China: Fujian Province, Wuyishan City, Xingcun Town, Tongmu Village , near Mt. Wuyishan , unnamed stream ( Fig. 10A View FIGURE 10 ), 27.7527 N, 117.6882 E, 800m, by light trap ( Fig. 10B View FIGURE 10 ), July 23, 2019, Yi-Fei Huang, Yu-Xuan Hu, Xiao-Han Ye (ICJUST) GoogleMaps . Paratypes: 4 males and 6 females, same data as holotype (ICJUST) GoogleMaps .

Etymology. The specific epithet is a combination of surnames of the three collectors, Yi-Fei Huang, Yu-Xuan Hu, Xiao-Han Ye, who generously provided the specimens for study.

Remarks. The new species can be distinguished from the two known Chinese congeners by the sensilla basiconica patches on abdominal terga 7–9, the specially modified hemitergal lobes, and the unique aedeagal structure (see fig. 10 in Zwick 1982, and figs. 1–2 in Li & Qin 2016). When compared with all congeners of Phanoperla , P. huanghuye is also distinctive by the combination of following characters: 1) male terga 7–9 with sensilla basiconica; 2) male hemitergal lobes with basal spinulose callus and ventroapical fringe of long, thick spines; 3) aedeagus with a subapical dorsal lobe and a membranous, concave apex; 4) subgenital plate of the female near hexagonal; 5) egg oval with a short collar, chorion covered with circular punctations. These unique characters make it difficult to assign P. huanghuye to any of the species groups defined by Zwick (1982). In addition, CuP of forewings of P. huanghuye is straight basally, rather than curved as commonly found in other congeners (Zwick 1982). Although the three Phanoperla species of China are currently known only from Fujian and Hainan provinces ( Fig. 1 View FIGURE 1 ), more members will certainly be found in other coastal provinces such as Guangdong, Guangxi, and Yunnan provinces considering the known high biodiversity of Phanoperla in the Oriental Region.