Bellulia kareni species-group. Members of the B. kareni species-group are pale-coloured moths with yellowish reniform; in the male genitalia the saccus triangular; the valvae are asymmetrical; ampullae are asymmetrical, forming circle, right valva larger than left one; tegumen ventrally fused with fultura superior with a prominent, log-like process on each side; left process free, rounded apically; right process fused at both ends; aedeagus curved subapically and subbasally, not obviously tapered towards apex; the vesica with a row of more than 5 triangular cornuti. Checklist B. kareni Fibiger, 2008 B. tenebrosa sp. n. B. clara sp. n. Key to the species of the kareni species-group 1. Antemedial line blackish grey; process of costa not thumb-shaped............................................... 2 – Antemedial line light brownish grey; process of costa slender, thumb-shaped............................ B. clara sp. n. 2. Antemedial line rather broad; process of costa short and straight cone-shaped, protruding from exterior half of costa........................................................................................... … B. tenebrosa sp. n. – Antemedial line rather broad; process of costa horn-shaped, protruding from medial part of costa................ B. kareni

Published as part of Han, Hui Lin & Kononenko, Vladimir S., 2021, Six new species of the genus Bellulia Fibiger, 2008 from China and Cambodia (Lepidoptera, Erebidae, Hypenodinae). Taxonomic study of Micronoctuini Contribution III, pp. 117-130 in Zootaxa 4938 (1) on page 118, DOI: 10.11646/zootaxa.4938.1.6, http://zenodo.org/record/4561447