Hypolamprus sp. 21
- Family: Thyrididae
- Subfamily: Siculodinae
- Tribe: Siculodini
- Genus: Hypolamprus
- Distribution: Thailand.
- Habitat: Lowland, dry mixed deciduous and dipterocarp forest; 400-500m.
- Wing Length: 31mm
Taxonomy
Thailand, Huai Kha Khaeng WS, Khao Nang Rum (Uthai Thani). Hypolamprus sp. 21 is represented by two unnamed specimens from Thailand in the NHM (Mi7375).
Description
A distinctive species with an extremely falcate FW. It has large patches of pale ochreous brown and pale reticulated areas on the outer parts of the wings. The FW basal half is entirely this colour and it extends along the costa and the inner margin. Head, thorax and and abdomen pale ochreous brown.

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