Synprosphyma gastrum

Synprosphyma gastrum (Möllendorff, 1901) (Fig. 1K) Phaedusa (Hemiphaedusa) gastrum Möllendorff, 1901: p. 77 Type locality: “Than-moi” (Thanh Moi; presently Lang Thanh, Lang Son Province). Locality data: Tam Dao N. P., forest 1 km NE of the centre of the resort (21.4607°N 105.6488°E), 1060 m, leg. R. Bekchiev, I. Dedov, M. Langurov & N. Simov 2023 (Fig. 2A, B); Tam Dao N. P., forest 1 km E of the centre of the resort (21.4562°N 105.6519°E), 1150 m, leg. R. Bekchiev, I. Dedov, M. Langurov & N. Simov 2023. Distribution: Apart from its type locality, the sites in the Tam Dao N. P. are the only known occurrences of the species. Habitat: Undisturbed forest, on and under tree bark, as well as in decaying wood. Remarks: Our data from the Tam Dao N. P. are the only well-defined locality records of this rare endemic species of Northern Vietnam.