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Ospreys are an indicator species. The health of their population has implications for the health our coastal ecosystems.

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New Jersey Endangered and Threatened Species Field Guide


Image of An adult brush-tipped emerald.Zoom+ An adult brush-tipped emerald. © Allen Barlow

Brush-tipped emerald

Somatochlora walshii

Species Group: Invertebrate

Conservation Status

State: Special Concern

 


IDENTIFICATION

At 1.8”-1.9” in length, this is New Jersey’s smallest striped emerald. Its eyes are bright metallic green and the face has a yellow stripe and green metallic patch. The thorax is green and metallic bronze with a lateral yellow stripe and dot and the abdomen is short. The female is similar and has a scoop-like ovipositor.

Image of Range of the brush-tipped emerald in New Jersey.Zoom+ Range of the brush-tipped emerald in New Jersey.

DISTRIBUTION AND HABITAT

The brush-tipped emerald was first recorded in New Jersey in 1982 and since then has been reported in a few locations in northern New Jersey. They inhabit open swamps and bogs with small streams flowing through them.

DIET

Larvae feed on aquatic invertebrates and adults on flying insects.

LIFE CYCLE

Adults are active from early June through the first week in August.

CURRENT STATUS, THREATS, AND CONSERVATION

The brush-tipped emerald is an uncommon dragonfly in New Jersey and therefore is considered a species of Special Concern in the state. Two threats facing this species are habitat modification and groundwater disturbance.



Text derived from the book, Field Guide to Dragonflies and Damselflies of New Jersey. 2009. By Allen E. Barlow, David M. Golden and Jim Bangma. Edited and updated by Larissa Smith in 2011.


Scientific Classification

Kingdom: Animalia
    Phylum: Arthropoda
       Class: Insecta
          Order: Odonata
             Family: Corduliidae
                Genus: Somatochlora
                   Species: S. walshii

Find Related Info: Invertebrates, Special concern

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