Allegheny River Cruiser - Macromia alleghaniensis (Williamson, 1909 (S1S2)

This is a species of concern. Please report any encounters to Odonata Central.

Range & Habitat:

Streams and rivers on the coastal plain, especially in the core Pine Barrens.

Found along large streams and rivers, sometimes sympatrically with the southern form of Illinois River Cruiser.

Flight Season:
Early Date: 9 June
Late Date: 7 September

Flight season charts created from records in the official database maintained by Allen Barlow.

Male Dorsal - Photo by Jim Bangma
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Restricted yellow spots on the abdomen.

Swift River Cruiser is found in the same range, but is much brighter. More study is needed of this genus.It is superficially very similar to the "Northern" Swift River Cruiser, differing in minor details. It does not overlap with that form in New Jersey. The "Southern" 

Conservation Status:
State: S1S2 Imperiled to critically imperiled in New Jersey
Global: G4 Apparently secure globally