Dragonflies and damselflies (Odonata) from Córdoba and San Luis provinces, Argentina Author Márquez, Javier A. Author Principe, Romina E. Author Berejnoi, Diego E. Author Rodríguez, José S. Author Bedano, José C. Author Molineri, Carlos text Check List 2019 2019-04-19 15 2 327 337 http://dx.doi.org/10.15560/15.2.327 journal article 10.15560/15.2.327 1809-127X Micrathyria hypodidyma Calvert, 1906 Figure 16 Material examined. 1 male Site 3, R.E. Principe col. 20-XII-2017 ( UNRC-ZIIO 0126) and 2 males Site 4, J.A. Márquez col. 6-III-2018 ( UNRC-ZIIO 0130, 0131). Identification. This species can be distinguished from other Micrathyria species by having 2 cells between the anal angle of the triangle and the Cuspl in the hind wing, Figure 16. New records of Odonata species for Argentine provinces. New record from Córdoba: Micrathyria hypodidyma , habitus. Male from site 3. the arculus located at level of the second antenodal, or very close to it, and 2 linear wide pale stripes at the sides of the pterothorax. In males, the hamule projects anteri- orly, not surpassing the proximal margin of the anterior lamina, and the cercus in lateral view is approximately linear ( Calvert 1906 ). The 3 specimens collected in Córdoba presented variations in wing venation, especially noticeable in the fore wing triangles ( Fig. 17 ). Specimen UNRC-ZIIO 0130 displayed free triangles in its fore wings, whereas specimen UNRC-ZIIO 0131 displayed crossed triangles in its fore wings. The last specimen UNRC-ZIIO 0126 presented asymmetry in fore wing triangles, displaying the left fore wing triangle crossed and the right fore wing triangle free.