Saturniidae Expedition to North-Vietnam

by Teemu Klemetti, Otso Reunanen, Tero Taipale and Sami Haapala

This is a report about the expedition to North-Vietnam in October 2006. The main purpose of the trip was to find two Saturnids: Salassa lemaii and Actias chapae. Both species fly in one generation per year in October-November.

Expedition group

The expedition group consisted of four members from Finland:

Teemu Klemetti (email)

Otso Reunanen

Tero Taipale

Arrangements and collecting in Tam Dao National Park

We arrived to Noi Bai International Airport in Hanoi in the morning, October 24th. The first objective was to find suitable generators for collecting. After visiting a few shops in Hanoi, we found good and reasonably priced machines. We bought two Thailand made Hondas, both giving 2.2kW continuous power. They are powerful enough for collecting.

Buying the generators

After purchasing the generators and gas, we drove straight to Tam Dao National Park, and we met the local Ranger there on the same afternoon. The ranger allowed us to collect inside the park. We lived in the hotel at the end of the village. The hotel itself was located in a reasonable collecting spot so the first night we plugged the lights into the hotel outlets, and did not use the generators.

Meeting with the ranger.

The hotel was in a reasonable collecting place.

For the next five nights we collected with generators along the newly built road from the village towards the three peaks of Tam Dao. There were many good collecting spots just along the road. Every evening the generators were moved to the collecting spots by the local motorbikes and every morning they took the generators back to the hotel.

The new road from Tam Dao village towards the peaks.

The generator and lamps arrived to the collecting spot.

In each collecting spot we used one 500 watt self-ballasted mercury light and two 300 watts solar spotlights. The 500 watt light was always on the white cloth and the spotlights were on the top of the long bamboo rod. The purpose of the spotlights is to attract the moths from long distance and the 500 watt bulb attracts the moths to the cloth. This system has worked very well everywhere in the tropics. The spotlights play an especially important role. We can recommend them to all collectors. One brand is Osram ultravitalux, but other manufacturers have similar lights as well. They are expensive but absolutely worth of every single cent.

Two spotlights in the bamboo rod shining down the slope.

During the six nights we collected in Tam Dao, we attracted a few males of Salassa lemaii each night. All males came to the light between 11.00pm and 01:00am. Unfortunately we did not find any females for breeding. Maybe the females would be more abundant later on near the end of October and early November.

Goto Success!

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