] The Libellulidæ, or family of Dragon flies, and the Ephemeridæ, or May flies (Fig.) [Please select]
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When catching the ephemeridæ that play above the water, the tail is not expanded: it is reserved for times of courtship. [Please select]
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Larvule: applied to early stages of Ephemerid larvae when they appear to have no developed respiratory, circulatory or nervous systems. [Please select]
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