Flattoides Grishin, new genus

http://zoobank.org/ 9D7A5387-08F8-4C25-B584-B67F90EEC43A

Type species. Codatractus amazonensis Bell, 1947 .

Definition. A sister genus to Oileides Hübner, [1825] (type species Oileides vulpinus Hübner, [1825]), where C. amazonensis was placed previously (Fig. 2). However large genetic distance between O. vulpinus and O. amazonensis (COI barcodes differ by 12.3%, the difference is typically smaller than 10% for species within a genus) argues for their distinction. Keys to D. 9.4 in Evans (1952). Genitalia illustrated by Bell in his fig. 2 (Bell 1947). Distinguished from its relatives by the following combination of characters: shorter than tegumen and broad uncus with small (not longer than wide) arms; prominent gnathos not shorter than uncus; valva gradually curved dorsad, ending with two pointed teeth; tuft of apricot-colored modified scales in a groove along the vein near the base of ventral hindwing in males; forewing with a macular white band from mid-costa to tornus. In DNA, a combination of the following base pairs is diagnostic: aly8661.4.1:A916G, aly10226.44.1:C1975G, aly709.1.2: T194 C, aly36556.1.1: T2416 T (not A), aly274.33.1:A188A (not G), aly82.28.5: T398 T (not G).

Etymology. The name is a masculine noun in the nominative singular, for the type species that resembles butterflies from the genus Celaenorrhinus known as “Flats” in some English-speaking countries.

Species included. Only the type species.

Parent taxon. Subtribe Oileidina Grishin, 2019.