Eupolyphaga everestiana everestiana ( Chopard, 1922 )

Qiu, Lu, Che, Yang-Li & Wang, Zong-Qing, 2018, A taxonomic study of Eupolyphaga Chopard, 1929 (Blattodea: Corydiidae: Corydiinae), Zootaxa 4506 (1), pp. 1-68 : 25

Eupolyphaga everestiana everestiana ( Chopard, 1922)

( Fig. 7 D–I)

Polyphaga everestiana Chopard, 1922: 196 , type locality: “Mount Everest Expedition”, pl. 2, figs. 7-8 for types 1 male and 1 female; Hanitsch 1927: 41. Eupolyphaga everestiana: Chopard 1929: 269 , pl. IX, fig. 12; Princis 1962: 54.

Material examined. None.

Type materials examined. Syntype of Polyphaga everestiana , male (NHM, No. #876175), “ Mt. Everest Exped. / Up to 18.500 ft. / July, 1921. / B. M. 1922-73.”, with a determined label: “ Polyphaga everestiana Chop type male (handwriting)/ L. CHOPARD. det.”. Syntype of Polyphaga everestiana , 1 female ( NHM, No. #876176), same data as the male syntype, with a determined label: “ Polyphaga everestiana Chop type female (handwriting)/ L. CHOPARD. det.” .

Distribution. China (Mount Everest).

Remarks: E. everestiana is the only species of the genus with short tegmina (but still beyond the end of abdomen), this character may derive from the extremely harsh environment they live. According to the original description, the types of the species were found at the elevation up to 18.500ft. (about 5638.8 m) from Mt. Everest, which may be known as the highest elevation for cockroaches to live.

Figures

FIGURE 7. Eupolyphaga species from Tibet, China: A–C. Polyphaga thibetana Chopard, male, holotype (with labels), from Gyantse, Shigatse. D–I. Polyphaga everestiana Chopard: D–F. Male, syntype (with labels), from Mt. Everest; G–I. Female, syntype (with labels), from Mt. Everest. A–F photographed by Zong-Qing Wang, G–I provided by George Beccaloni, copyright The Natural History Museum, United Kingdom (NHM). J–M. Eupolyphaga everestiana reni subsp. nov., from Lhünzê, Lhoka: J–K. Male, holotype; L–M. Female, paratype. Scale bar 1 cm for all.