Symmachia belti, Dias & Dolibaina & Mielke & Casagrande, 2020

Dias, Fernando Maia Silva, Dolibaina, Diego Rodrigo, Mielke, Olaf Hermann Hendrik & Casagrande, Mirna Martins, 2020, Taxonomic review of the “ Probetoriformes ” species group of Symmachia Hübner [1819] (Lepidoptera: Riodinidae), with the description of two new species from the Brazilian Atlantic Forest, Zootaxa 4780 (3), pp. 471-507 : 504

Key to species of Symmachia of the “Probetoriformes” species group

Males

1. HWD with a red band along the costal margin; FWD base of 1A without differentiated scales. (subgroup 1).............. 2

1’. HWD without a red band along the costal margin; FWD with light bluish green scales on the base of 1A................ 6

2. FWD without any translucent white or creamy spots along the costal margin...................................... 3

2’. FWD with translucent, whitish or creamy spots along the costal margin.......................................... 4

3. FWD dark green sheen absent roughly on the submedial areas from the inner margin to the discal cell and along the outer margin; vesica without cornuti. Amazon basin and the Guianas............................................ S. probetor ,

3’. FWD dark green sheen absent on the submedial areas from the inner margin to the discal cell, on the postdiscal area in M 2 –M 3, and M 3 –CuA 1, and along the outer margin; cornuti well-developed. Trans-Andean South America and Central America............................................................................................ S. belti stat. rev.

4. FWD without spots between the discal cell and the costal margin and a small round whitish or creamy spot in the postdiscal area at the costal margin in R 2 –R 3. Central America........................................ S. championi stat. rest.

4’. FWD with a translucent white or creamy sickle-shaped spot between the discal cell and the costal margin............... 5

5. FWD without spots at the postdiscal area. Amazon basin and the Guyanas................................ S. estellina

5’. FWD with a small sub-rectangular whitish or creamy spot in the postdiscal area at the costal margin in R 2 –R 3. Atlantic forest..................................................................................... S. atlantica sp. nov.

6. FW strongly bulged at the costal margin; posterior tergites of the abdomen red. (subgroup 2)......................... 7

6’. FW weakly bulged at the costal margin; posterior tergites of the abdomen black. (subgroup 3)........................ 9

7. FWD with a red band in the submarginal area along the outer margin. Atlantic forest......................... S. praxila

7’. FWD without a red band in the submarginal area along the outer margin.......................................... 8

8. FWD without reddish orange spots in the basal area; HWV submarginal band irregular and broken along the outer margin, with a more developed ocellus between CuA 1 –2A near the tornus. Western Amazon basin......................... S. divisora

8’. FWD with reddish orange spots in the basal area; HWV submarginal band regular and continuous along the outer margin, not outlining ocelli. Atlantic forest............................................................. S. uirassu sp. nov.

9. FWD with a translucent white or creamy sickle-shaped spot between the discal cell and the costal margin and a small round whitish or creamy spot in the postdiscal area at the costal margin in R 2 –R 3. Amazon basin................... S. falcistriga

9’. FWD without translucent white or creamy spots along the costal margin. Amazon basin and the Guyanas.. S. meyi stat. nov.