Moustached Clubtail - Gomphus (Hylogomphus) adelphus (Selys, 1858)

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

Range & Habitat:

Recorded only from Sussex County where it usually is found in along clean gravelly or rocky rivers.


Flight Season:
Early Date: 23 May
Late Date: 22 June

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

Small, with a moderate club. The face has two black lines, the thorax has wide U shaped frontal stripes and has the lateral stripes interrupted or missing. The abdomen is mostly black, lateral yellow spots, if present are usually small. Note - the individual in the thumbnails is quite young, with brown eyes and bright yellow coloration.

Compare to Spine-Crowned Clubtail and Green-faced Clubtail.

Conservation Status:
State: S1 Critically imperiled in NJ
Global: G4 Apparently secure globally