Species - Leucorrhinia hudsonica

Taxonomic Hierarchy for Freshwater Invertebrate Collection


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Leucorrhinia hudsonica

Freshwater Invertebrate Collection

Common NameHudsonian Whiteface SeasonalityMay to August. IdentificationThe Hudsonian Whiteface has a length of 27 to 30 mm. Male dragonflies are black and marked with red on the thorax and the abdomen with pointed spots on one end that form a line in the top side of the abdomen. The female is a dark brownish color and marked similarly to the male except the markings are yellow instead of black. Both sexes have creamy white faces. The naiad of the Hudsonian Whiteface has a length of 16 to 18 mm. Its abdomen is rounded, which gives it a short, stocky appearance known as the sprawler form. Naiads are brown with three dark stripes marking the length below the abdomen. In some cases, there are tiny hooks on abdominal segments three through six. Every side of abdominal segments eight and nine has a spine that points out away from the abdomen.

Taxonomic Hierarchy for Freshwater Invertebrate Collection