MARUMBA GASCHKEWITSCHII CARSTANJENI (Staudinger, 1887)

Female Marumba gaschkewitschii carstanjeni. Photo: © BMNH Male Marumba gaschkewitschii carstanjeni. Photo: © BMNH Male Marumba gaschkewitschii carstanjeni, dark form. Photo: © BMNH

TAXONOMY

Smerinthus carstanjeni Staudinger, 1887, in Romanoff (ed.), Mém. Lépid. 3: 159. Type locality: [Russia, Khabarovsk Kray/Primorskiy Kray] Ussuri; [Russia, Primorskiy Kray,] Suifun [Suifen].


ADULT DESCRIPTION AND VARIATION


Resting male of Marumba gaschkewitschii gaschkewitschii, Xiangshan (Fragrant Hills), Beijing, China. Photo: © Tony Pittaway.

ADULT BIOLOGY

M. gaschkewitschii occurs in most habitats, including cities and orchards, and reaches over 2000m in Yunnan (Mell, 1935) and Nepal. Particularly common in montane forests rich in species of Prunus and Pyrus (Mell, 1935). Also common in the hills to the west and north of Beijing in the Ziziphus\Vitex\Rhus vegetation zone.


Xiangshan (Fragrant Hills), Beijing, China. Photo: © Tony Pittaway

FLIGHT-TIME

Russia: 15-26.vii (Primorskiy Kray).


EARLY STAGES

OVUM: Oval (1.57 x 2.07mm).

LARVA: Full-fed 75--83mm.

Generally feeds at between 0.5 and 1.5m off the ground on terminal branches of bushes rather than trees. Smaller plants set in amongst other shrubs are preferred. Larvae can be met with at very high densities, withn often four or five per branch.


Full-grown grey-green form of Marumba gaschkewitschii gaschkewitschii on Crataegus, Chengde, Hebei, China. Photo: © Tony Pittaway Full-grown yellow-green form of Marumba gaschkewitschii gaschkewitschii on Ziziphus, Xiangshan, Beijing, China. Photo: © Tony Pittaway Full-grown yellow-green form of Marumba gaschkewitschii gaschkewitschii on Ziziphus, Xiangshan, Beijing, China. Photo: © Tony Pittaway

PUPA: 40--48mm. Reddish mahogany brown and glossy; tapering caudad from a blunt head and thorax. Head tuberculate, with two vertical, blunt, broad crests frontad. Proboscis not present, but replaced by a knob-like tubercle. Wings smooth, abdominal segments finely punctate. Spiracular ridges present on movable abdominal segments. Cremaster broadly conical, with a sharp point; tuberculate. Similar to that of Callambulyx tatarinovii, but head more rough and with two crest-like tubercles frontad, as found in most species of Marumba. Formed in an almost silk-free cell in the soil. The overwintering stage.


Pupa of Marumba gaschkewitschii gaschkewitschii, Xiangshan, Beijing, China. Photo: © Tony Pittaway

Larval hostplants. Recorded in Primorskiy Kray, Russia, on Prunus, Pyrus and Crataegus (Derzhavets, 1984); also on Malus baccata and Crataegus pinnatifida (Izerskiy, 1999b).

Recorded in Korea on Kerria japonica, Prunus mume, P. persica, P. salicina, P. serrulata, Malus pumila and Pyrus pyrifolia var. culta (Park et al., 1999). However, records from Buxus microphylla var. koreana are suspect.

For China, Yang (1978) and Chu & Wang (1980) also give Ziziphus mauritiana [Z. jujuba]. The first author was able to confirm this unusual hostplant by finding numerous full-grown larvae on Z. jujuba shrubs in the hills west of Beijing (Xiangshan) during late August (Pittaway, pers. obs. 2003). Larvae were also common on apricot Prunus armeniaca at Chengde. However, records from Buxus microphylla and Euonymus alatus (Chang, 1989) are suspect, while those on Vitis vinifera (Chu et al., 1979; Chu & Wang, 1980) are probably erroneous. The source and veracity of the record on Weigela (Zhang, 1994) are unknown.

In captivity the larvae found on Ziziphus and Prunus armeniaca readily transferred to Crataegus (Pittaway, pers. obs. 2003).


PARASITOIDS


LOCAL DISTRIBUTION

China: E Nei Mongol (Balin); Heilongjiang (Harbin; Lalin); Jilin; Liaoning (Huanren); Hebei; Beijing (Xiangshan; Botanical Garden).

Korea: The entire Korean Peninsula (including Cheju-do).

Russia: Amurskaya (Belogorsk; Blagoveshchensk); Khabarovsk Kray (Slavyanka); Kamchatka; Primorskiy Kray (Kaymanovka; Lesogor'e; Dal'nerechensk; Vityaz Bay; Khasan area; Kedrovaya Pad nature reserve).

The core distributions of the current seven subspecies of M. gaschkewitschii are as follows:


GLOBAL DISTRIBUTION

Russian Far East, northeastern China and the Korean Peninsula.


Global distribution of Marumba gaschkewitschii carstanjeni. Map: © BMNH.

BIOGEOGRAPHICAL AFFILIATION



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© A.R. Pittaway & I.J. Kitching (The Natural History Museum, London)