Genus - Leucorrhinia

Taxonomic Hierarchy for Freshwater Invertebrate Collection


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4 results for "Leucorrhinia"

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.

Leucorrhinia intacta

Freshwater Invertebrate Collection

Common NameDot-tailed Whiteface SeasonalitySpring through summer. IdentificationMales have white faces and a single yellow dorsal dot on the 7th segment of the abdomen. The immature has a yellow marking on the thorax. The female has yellow markings on the abdomen with the same prominent, square dorsal spot on the 7th segment, which is often truncated into a trapezoid. The body varies from 1.1 to 1.3 inches in length. Larvae possess conspicuous epi-cranial protuberances on the frons or vertex.

Leucorrhinia proxima

Freshwater Invertebrate Collection

Leucorrhinia sp.

Freshwater Invertebrate Collection

Taxonomic Hierarchy for Freshwater Invertebrate Collection