"Georgia" Swift River Cruiser - Macromia illinoiensis georgina (Selys, 1878)

Range & Habitat:

The southern race of Swift River Cruiser, it replaces it in the coastal plain. Intergrades occur in the overlap zone, especially Hunterdon and Somerset counties.

Patrols along large streams and rivers.

Flight Season:
Early Date: 30 May
Late Date: 11 September

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

Male Oblique - Photo by Allen Barlow
Click on a thumbnail to view full-size photo

Really bright, with prominent yellow on abdominal segments 1-8. For comparison, see "Northern" Swift River Cruiser. Caution: intergrades do occur, especially from Hunterdon & Mercer through Monmouth Counties. Not all can be identified as to type.

The sympatric Allegheny River Cruiser is duller, resembling the northern form. More study is needed in this complex.

Conservation Status:
State: S4 Apparently secure in New Jersey
Global: G5T5 Secure globally, local taxon also secure