New York Natural Heritage Program
Arrowhead Spiketail
Cordulegaster obliqua (Say, 1839)

Habitat [-]
Arrowhead spiketails oviposit and spend most of their time at small spring fed streams and seeps with soft bottoms and sometimes rocks. These streams are usually in forested areas although the seepage areas themselves may be in small areas of more open habitat types such as meadows dominated by ferns and other moisture dependent herbaceous plants. Adults may feed in forest clearings in the vicinity of the principal breeding habitat.

Associated Ecological Communities [-]
  • Intermittent stream*
    The community of a small, intermittent or ephemeral streambed in the uppermost segments of stream systems where water flows only during the spring or after a heavy rain and often remains longer, ponded in isolated pools. These streams typically have a moderate to steep gradient and hydric soils.

    * probable association but not confirmed
  • Marsh headwater stream
    The aquatic community of a small, marshy perennial brook with a very low gradient, slow flow rate, and cool to warm water that flows through a marsh, fen, or swamp where a stream system originates. These streams usually have clearly distinguished meanders (i.e., high sinuosity) and are in unconfined landscapes.
  • Spring
    The aquatic community of very small, cold stream sources where the flow is perennial. Springs are characterized by water with constant cold temperature and are rich in dissolved oxygen.