About Pseudagrion decorum (Rambur, 1842)
Pseudagrion decorum (Rambur, 1842) is a medium-sized damselfly. Males have bluish green eyes with a tiny black spot on the top, which are paler in color below. Their thorax is bluish green on the dorsum and azure blue on the lower sides. A very thin black mid-dorsal carina runs along the thorax, bordered by equally narrow black lines that run close and parallel to it on each side. There is also a narrow black humeral stripe, and a short black point at the upper part of the postero-lateral suture. Their wings are transparent and bear diamond-shaped pterostigma. The abdomen is azure blue, with dorsal black markings extending up to segment 7. Segments 8 through 10 only have narrow apical black lines. The superior anal appendages are azure blue with black tips. Females have duller colored thorax and abdomen, with the mid-dorsal black stripe extending all the way to the last abdominal segment. This species breeds in slow-flowing marshy streams and lowland lakes. It is commonly found along shorelines or on emergent vegetation. It is only seen in hilly areas during its migration.
