Argia medullaris Hagen in Selys, 1865Coenagrionidae
Male
Female
Tandem pair
Male appendages, dorsal view
MaleFemaleTandem pairMale appendages, dorsal view
Male
Female
Male appendages, lateral view
Male
MaleFemaleMale appendages, lateral viewMale
Male
Female
MaleFemale

Male identification:

  • Wings clear.
  • Top of abdomen nearly all sky blue.
  • Lower appendage with two short lobes.

Female identification:

  • Dorsum of S8 entirely pale; S10 all black.
  • Wings clear. A. medullaris is distinctly larger and longer than sp. F.

Similar species:

Male abdomen length: 30.0

Male hind wing length: 24.0

Female abdomen length: 31.0

Female hind wing length: 26.0

Local distribution: Both slopes at mid-elevation, 1600 - 2000 m.

Habitat: Clear-running streams and rivers in forest and open areas.

Abundance: Common.

Species range: Mexico, Central and South America

Updated: 27 January 2013





Credits: Text and images copyright by William Haber and David Wagner, 2013