Notes on Acanthagrion acutum Ris, Enallagma occultum Ris, and E. ovigerum Calvert (Zygoptera: Coenagrionidae)
Odonatologica , Volume 18 - Issue 3 p. 245- 252
The generic position of the 3 spp. is discussed on the basis of material from the Ris Collection, and figs showing their male characters are presented. Kennedy’s genera Archaeallagma, Cyanallagma. Homeoura. Mesamphiagrion, Oxyallagma and Protallagma are compared and a definition of Cyanallagma Kennedy is attempted.
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