POLYPTYCHUS CHINENSIS CHINENSIS Rothschild & Jordan, 1903 -- Chinese crenulate hawkmoth

Female Polyptychus chinensis chinensis. Photo: © NHMUK Male Polyptychus chinensis chinensis. Photo: © NHMUK

TAXONOMY

Polyptychus chinensis Rothschild & Jordan, 1903, Novit. zool. 9 (suppl.): 239. Type locality: China: "probably Yangtse-kiang Region".


ADULT DESCRIPTION AND VARIATION

Wingspan: 92--112mm. Similar to Polyptychus dentatus in that the forewing submarginal line is not convex between veins M2 and Cu2, but forewings relatively broader and outer margin straighter.

In the female genitalia, eighth tergite (A8) a very large, deeply divided, irregularly notched and rugose plate, differing markedly from Polyptychus dentatus and Polyptychus trilineatus trilineatus. Lamella postvaginalis excavated to form a pair of rounded lobes.


Male Polyptychus chinensis chinensis, Taiwan. Photo: © Felix Lin.

ADULT BIOLOGY


FLIGHT-TIME

Taiwan: iii-iv (Kaohsiung Hsien); iv (Hualien Hsien). Japan: 19.iv (Ryukyu Archipelago).


EARLY STAGES

OVUM:

LARVA:

PUPA:

Larval hostplants. Ehretia dicksonii (Boraginaceae), a small tree (ShenHorn Yen, pers. comm. 2012).


PARASITOIDS


LOCAL DISTRIBUTION

Taiwan: Kaohsiung Hsien (Shanping, 640m).

Japan: Ryukyu Archipelago (Amami-Oshima).


GLOBAL DISTRIBUTION

Probably endemic to Taiwan and the southern Ryukyu Archipelago, contrary to what the type locality indicates.


Global distribution of Polyptychus chinensis chinensis. Map: © NHMUK.

BIOGEOGRAPHICAL AFFILIATION



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