Pennisetia hylaeiformis (Laspeyres, 1801)

Gorbunov, O. G., 2022, New data on clearwing moths (Lepidoptera: Sesiidae) of Sakhalin Island, Far Eastern Entomologist 449, pp. 21-28 : 23-24

Pennisetia hylaeiformis (Laspeyres, 1801)

Figs 2–5

MATERIAL EXAMINED. Sakhalin: Nevelsky District, Yasnomorka River , 46˚44.656΄N ,

141˚58.439΄E, 47 m, 24.VII 2021, 3♂, Gorbunov leg. ( Sesiidae pictures Nos 0485-0486–

2021); Nevelsky District, Yasnomorskoye, 46˚44.967΄N, 141˚54.905΄E, 13 m, 25.VII 2021,

4♂, Gorbunov leg. ( Sesiidae pictures Nos 0479-0484–2021); Nevelsky District , Yasnomorka

River, 46˚44.656΄N, 141˚58.439΄E, 47 m, 29.VII 2021, 1♂, Gorbunov leg. ( Sesiidae pictures

Nos 0477-0478–2021).

DISTRIBUTION. Very widely in the forest zone of the Palearctic from Northern Spain and France in the west, to Kamchatka, Sakhalin and Japan in the east, from central Norway and Sweden in the north to Bulgaria, Greece and the province of Jilin in China in the south.

Separate isolated populations are known from Portugal, Turkey, the North Caucasus, Georgia and Mongolia. Previously, it was known from Kirovskoye and Yuzhno-Sakhalinsk (Matsumura, 1925; Gorbunov & Tshistjakov, 1995).

HOST PLANTS. The larvae live in the upper part of the root of Rubus idaeus L. ( Rosaceae ). R. idaeus subsp. melanolasius Dieck ex Focke is the only host plant on Sakhalin.

SEXUAL ACTIVITY. Males were attracted to the pheromone lure for their species from about 10 am to 2 pm.

REMARKS. In general, collected specimens are somewhat darker than specimens from the mainland part of the range. They are almost identical in coloration to the specimens from

Hokkaido, which have been described as a separate subspecies P. hylaeiformis assimilis

Arita, 1992 (compare Figs 2 and 4 with figs 1 and 2 in Arita, 1992: 452). Therefore, the

Sakhalin population of this species should be attributed to the subspecies assimilis Arita,

1992.

Figures

Figs 2–5. Males of Pennisetia hylaeiformis (Laspeyres, 1801). 2–3 – Sesiidae picture Nos 0479-0480–2021. Alar expanse 25.6 mm; 4–5 – Sesiidae picture Nos 0483-0484–2021. Alar expanse 27.2 mm; 2, 4 – dorsal view; 3, 5 – ventral view.