REGULAR ACTIVITIES OF ADULT PTYAS MUCOSA (LINNAEUS, 1758) IN A FARMING CONDITIONS OF NGHE AN PROVINCE, VIET NAM

In the feeding condition in Cua Lo Town, Nghe An province, Viet Nam, adult Ptyas mucosa (P. mucosa) operates seasonally and day and night with the rule: The active season is from March to December and hibernating in January and February every year. For the rule of day and night operation: In March and April, they are mainly active from 6-18h; from May to July, they are operates at the 2 time periods: 7-11h (at most 8-10h), and 15-20h; In August, they are also operates 2 time periods, but from 5-11h, and 14 - 20h; From September to December, it operates at one period (6 or 7-19h), not active at night. The activity of adult P. mucosa is closely dependent on the temperature and humidity of the environment (20-40oC, 40-100%), the most favorable is 27-31oC, 76-92%. They officially hibernate in January and February when the ambient temperature is below 17oC for many days.