Calopteryx cornelia (a species of damselfly)

the Tangut language

Alternative form of 夏の大三角形

a female given name

the Tangut script (a logographic writing system used for writing the Tangut language of the Western Xia Dynasty)

Alternative spelling of 薄羽黄蜻蛉 (“globe skimmer”)

a globe skimmer (Pantala flavescens)

(uranography) Summer Triangle - a bright asterism of the northern summer sky. Its corners are the stars Altair, Deneb, and Vega.