Lycodon futsingensis (Pope, 1928)
Futsing Wolf Snake 福清白環蛇
(Non-venomous)
Lycodon_futsingensis
Order
Suborder		 Squamata 有鱗目
Serpentes 蛇亞目
Family Colubridae 游蛇科
Genus Lycodon 白環蛇屬
Species Lycodon futsingensis
Other name -
Chinese name 福清白環蛇
Total length Average 60 cm, may reach 80 cm.
Description

Back coloration grey or light pink or occasionally whitish, with numerous black irregular blotches.
First few blotches may cross the ventrals. Number of blotches varies from 35 - 50 in local specimens.
Pale spaces between blotches may have a dark spot.
Ventrals greyish white. Head spatulate, usually uniformly dark grey or dark brown.
All dorsal scale rows are smooth.
Juveniles similar in coloration to adults, but with a broad white band across the head, and a small spot on each ventral scale.
Tail long.
Resembles the highly venomous Many-banded Krait (Bungarus multicinctus), therefore must be distinguished with great care.
Separated with B. multicinctus by indistinct vertebral ridge, and dark spot on the pale space between blotches.

This species was identified as Lycodon ruhstrati ruhstrati until Vogel et al. (2009) reviewed the species status of Lycodon ruhstrati and suggested that Lycodon r. ruhstrati is a subspecies endemic to Taiwan. It is suggested that specimens from Hong Kong should belong to Lycodon futsingensis. Populations from mainland China and Vietnam are regarded as either L. ruhstrati abditus and L.futsingensis. To differentiate the two species, all dorsal scale rows are smooth in L. futsingensis, while at least two rows are keeled in the L. ruhstrati species group. All local records of Lycodon ruhstrati ruhstrati must be treated with caution.

Reference: Vogel, G. et al. 2009. A revision of Lycodon ruhstrati (Fischer 1886) auctorum (Squamata Colubridae), with the description of a new species from Thailand and a new subspecies from the Asian mainland. Tropical Zoology 22: 131-182
Habitat

Forested hills and mountains. Found up to 760 m in Hong Kong.
Behaviour Nocturnal. Good climber. Produces a pungent secretion from its anal glands when threatened.
Diet Feeds almost exclusively on lizards.
A captive specimen fed well on various geckoes and skinks.
Kills prey by constriction and swallows head first.
Reproduction Oviparious.
Distribution Extremely rare in Hong Kong;
First recorded in Hong Kong in 1962 from east of Lantau Peak at 762 m. Further records from Shek Kong and Tai Po Kau Nature Reserve.
Conservation Status IUCN Redlist: NE (Not Evaluated)
Lycodon futsingensis
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