Perizoma contrita (Prout, 1914)

Kuzmin, A. A. & Beljaev, E. A., 2017, NEW DATA ON GEOMETRID MOTHS (LEPIDOPTERA: GEOMETRIDAE) FROM AMURSKAYA OBLAST, Far Eastern Entomologist 348, pp. 1-14 : 10-11

Perizoma contrita (Prout, 1914)

Figs 15–20

TYPE MATERIAL. Holotype ( Figs 19, 20 ) – ♂, " Amur Centr. (Radde) M.

Korb 1903" [= Russia, Jewish Autonomous oblast], deposited in the Museum für

Naturkunde der Humboldt-Universität, Berlin, Germany.

OTHER MATERIAL EXAMINED. Amurskaya oblast : 12 km NW Tarmanchukan station, 10.VII 2015, 1♂; Primorskii krai: Khasansky district, 7 km N Zanadvo-

rovka, 17.VIII 1984, 1♂ (S. Sinev) (kept in the Zoological Institute, St. Petersburg,

Russia).

15 – male; 16–18 – male genitalia: 16 – genital segment, ventral view; 16 – fallos; 18 – genital segment, lateral view; 19 – holotype male; 20 – labels of holotype.

DISTRIBUTION. Russia (Amurskaya oblast, Jewish Autonomous oblast, Primorskii krai,?South Siberia), Korea, Japan (Hokkaido, Honshu).

NOTES. This rare species was described from "Central Amurland" (Prout, 1914:

261) without precise localization. We clarify that the type of Perizoma contrita is originated from Jewish Autonomous oblast, while Amurskaya oblast was erroneously considered as the type locality of this species (Beljaev & Oh, 2001; Mironov et al.,

2008). Thus, formally this species is listed here from Amurskaya oblast for the first time based on examined specimen. Perizoma contrita was recorded from South

Siberia (Djakonov, 1926; Viidalepp, 1977; Viidalepp, 1996; Shodotova et al., 2007;

Mironov et al., 2008), but all these records need to be revised; probably, they are misidentifications of the local form of Perizoma hydrata (Treitschke, 1829) with whitened medial and basal areas of the forewing (see Beljaev, 2016). Perizoma contrita differs from P. hydrata by the postmedial line on forewing less dentate and more ached outwardly, by the darker coloration of hindwing; by the obtuse valvae and by presence of straight digital cornutus on the vesica of phallos ( Figs 16–18 ).

Figures

Figs 15–20. Perizoma contrita (Prout, 1914). 15–18 – specimen from Amurskaya oblast: