SMERINTHUS TOKYONIS Matsumura, 1921

Male Smerinthus tokyonis. Photo: © BMNH Male Smerinthus tokyonis. Photo: © BMNH

TAXONOMY

Smerinthus tokyonis Matsumura, 1921, Thousand Insects Japan (Additam.) 4: 751. Type locality: Japan: Honshu, Tokyo.


ADULT DESCRIPTION AND VARIATION


ADULT BIOLOGY

A rare montane species.


FLIGHT-TIME

Japan: 14.iv (Honshu, Ibaraki Pref.); 25.iv-21.v (Honshu, Kanagawa Pref.); 8-9.v (Honshu); 18.v-29.vii (Honshu); 6.viii-4.ix (Hokkaido, Nari-gawa); 13.ix (Honshu, Yokohama).

The peak of emergence appears to be in June/July, but individuals can be met with from mid April to mid September, indicating a partial second brood in some years.


EARLY STAGES

OVUM:

LARVA:

PUPA:

Larval hostplants. Apparently confined to Enkianthus campanulatus (Ericaceae).


PARASITOIDS

Tachinidae: Exorista sorbillans (Wiedemann).


LOCAL DISTRIBUTION

Japan: Southern Hokkaido (Nari-gawa); Honshu (Tokyo; Kita-Karuisawa; Gozaishodake; Karuizawa; Bushi; Mitsumine; Kiyosato, 1300m; Fujisawa; Yokohama; Yabuki; Toyama; Osaka); Shikoku; Kyushu (Miyasaki; Nagasaki Pref.).

The distribution of this species in Japan is patchy and restricted to certain montane areas. On Honshu, the only confirmed records are from the Prefectures of Fukui, Toyama, Kanagawa, Ibaraki, Fukushima, Chiba, Gifu, Aichi, Mie and Miyagi.


GLOBAL DISTRIBUTION

Endemic to Japan.


Global distribution of Smerinthus tokyonis. Map: © BMNH.

BIOGEOGRAPHICAL AFFILIATION



Return to Sphingidae of the Eastern Palaearctic species list
© A.R. Pittaway & I.J. Kitching (The Natural History Museum, London)