Epigomphus armatus Ris,1918Gomphidae
Male
Female
Teneral male
Male
MaleFemaleTeneral maleMale
Male
Male appendages, dorsal view
Male
Male appendages, lateral view
MaleMale appendages, dorsal viewMaleMale appendages, lateral view
Male
Male

Male identification:

  • Eyes blue.
  • Thorax brown with numerous yellow-green stripes, including two longitudinal stripes on dorsum.
  • S7 mostly cream yellow.
  • Lower appendages much shorter than uppers.

Female identification:

  • Mesepisternum dark brown with two pale stripes.
  • Vertex with a pair of short, rounded horns arising behind the lateral ocelli, which do not surpass the posterior margin of the vertex.
  • Posterior margin of occipital ridge slightly convex.

Size: Large

Body length: 48.0-50.0

Local distribution: Atlantic lowlands.

Habitat: Small forest streams and spring seeps.

Species range in Middle America: Costa Rica, South America

Male abdomen length: 39

Female abdomen length: 42

Female hindwing length: 37

Updated: 31 October 2008





Credits: Text and images copyright by William A. Haber, 2006-2011. Contact: argianegra@yahoo.com