S. Mahunka szerk.: Folia Entomologica Hungarica 50. (Budapest, 1989)

Status of the natural environment, along with the removal of the whole agricultural population of the island. There are still parts, mostly karstic hills and valleys between them, with primary vegetation, forests abounding in rich under-growth. No Hungarian zoologist visited the island before. A rather dry weather prevailed, most of the streams dried out and except the deep and shady valleys and sometimes due to the morning moisture, everything seemed dry during our short trip there. The Bac Thai province trip was unfortunately short. Our main station was located at Quang Chu village in a partly destroyed, but partly much less disturbed primary forest area with a permanent stream abounding in water, an affluent of the Song Cau river. Prior to our visit, no Hungarian zoologists explored the site, however, we were told about a Soviet parasitologist's expedition there. Due to our limited time, we could not reach the higher elevations of that very promising place. Despite of the dry weather conditions, the activity of night flying insects was high at the time of collectings. List of localities* 1. ) No. 117 Hanoi, (Hotel La Thanh, room), 6 May, 1987 - Singled No. 118 Hanoi, (Hotel La Thanh, at lights* 6 May, 1987 - Singled No. 119 Hanoi, (Western Lake) 7 May, 1987 - Collected at MV lamp No. 120 Hanoi, (Hotel La Thanh, lights) 7 May, 1987 - Singled No. 121 Hanoi, (Hotel La Thanh) 7-8 May, 1987 - Singled No. 122 Hanoi, (Western Lake* 8 May, 1987 - Collected at MV lamp No. 123 Hanoi, (Hotel La Thanh) 6 May, 1987 - Singled reptile No. 124 Hanoi, (Hotel La Thanh) 6 May, 1987 - Singled amphibian No. 125 Hanoi, (as for No. 119) No. 126 Hanoi, (Hotel La Thanh, deck-roof of the main building) 9 May, 1987 - Singled No. 127 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 840 m a.s.l., at the mainstream) 9 May, 1987 - Singled No. 128 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 840 m a Singled reptile No. 129 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 840 m a 9 May, 1987 - Collected at MV lamp No. 130 Tarn Dao. Prov. Vinh Yen, (21°26'N, 105°38'E, 840 m a tel) 9 May. 1987 - Singled No. 131 Tarn Dao, Prov. Vinh Yen, Í21°26'N, 105°38*E, 900 m a. s and northern hill* 10 May, 1987 - Singled No. 132 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 880 m a. s stream* 10 May, 1987 - Singled No. 133 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 830 m a.s.l., at the left-side rivulet, on a level with the government's rest-house) 10 May, 1987 - Singled No. 134 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 840 m a.s.l., balcony of the hotel) 10 May, 1987 - Collected at MV lamp No. 135 Tarn Dao, Prov. Vinh Yen, (21°26'N. 105°38'E, 850 m a. s. 1.) 11 May, 1987 Singled No. 136 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 900 m a. s.l., at western foot of east ridge) 10 May, 1987 - Sifted and extracted litter (Moczarsky* of forest No. 137 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 800 m a.s.l., near the falls) 11 May, 1987 - Singled No. 138 Tarn Dao, Prov. Vinh Yen, (2lo26'N, 105°38'E, 850 m a.s.l., south slope of the western ridge) 11 May, 1987 - Netted in grasses and undergrowth No. 139 Tarn Dao, Prov. Vinh Yen, (21°26'N, 105°38'E, 850 m a.s.l.. south slope of the western ridge) 11 May, 1987 - Singled s. 1 9 May, 1987 balcony of the hotel) building of the ho1., valley of the spring 1., along the main Continuation of numbers of the previous (1986) expedition for all the collected samples except endoparasites of vertebrates.