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General Description

Males (length = 25 mm) have paraprocts that are flattened, triangular and sharply pointed at their anteriorly directed tips, but lack spinules on Tergites 9 and 10. Females (length = 37 mm) have the subgenital plate produced over half of Sternum 9; the hind margin of the subgenital plate is slightly angular and usually has a squarish shiny spot at its apex. The nymph has anal gills but lacks an occipital ridge. The nymphal head has a yellow mark extending from the labrum to the anterior ocellus and dark brown abdominal terga.


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© University of Alberta Museums

Source: University of Alberta Museums

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