Septima's clubtail

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Gomphus septima

Type: invertebrate

Status:

Species Guide

Septima's clubtail

Gomphus septima

Species Type: invertebrate

Conservation Status:

IDENTIFICATION

This large species reaches 2.2” and has a dark brown and pale green coloring.  The eyes are grayish green and the abdomen is dark brown with yellow spots.  The female has wider dorsal markings and paler legs.

Distribution & Habitat

DISTRIBUTION AND HABITAT

The Septima’s clubtail found in New Jersey is a disjunct regional subspecies, found along the Delaware River in New Jersey, Pennsylvania and New York.  It is found only in few segments of the Delaware River where major tributaries join the river.

Diet

DIET

Larvae are predatory and adults feed on other invertebrates

Life Cycle

LIFE CYCLE

In late May emergence takes place and the adults are active throughout June.

Scientific Classification

  • Kingdom: Animalia
  • Phylum: Arthropoda
  • Class: Insecta
  • Order: Odonata
  • Family: Gomphidae
  • Genus: Gomphus
  • Species: G. septima