Grishin, Zhang & Cong & Shen & Grishin, 2022

Zhang, Jing, Cong, Qian, Shen, Jinhui & Grishin, Nick V., 2022, Taxonomic changes suggested by the genomic analysis of Hesperiidae (Lepidoptera), Insecta Mundi 2022 (921), pp. 1-135 : 97

Oz Grishin , new genus

http://zoobank.org/ 48DA2281-9ED8-4962-A6BA-BB2A8E060F20

Type species. Astictopterus ozias Hewitson, 1878 .

Definition. Superficially very similar to Lychnuchoides saptine (Godman and Salvin, 1879) , the type species of Lychnuchoides Godman, 1901 and was placed in it. However, not monophyletic with L. saptine ( Fig. 17 ) and instead forms a clade of its own closer to the base of the tree. Keys to K. 29.3 in Evans (1955). Distinguished from its relatives by the following combination of characters: apiculus of antennae obtuse (not angled); nudum of about 13 segments; mid-tibiae without spines; males with a narrow stigma on forewing, no brands; gnathos developed, not as broad as in many relatives, arms converging, separated from uncus in lateral view; harpe expanded in the middle, longer than valva. See comments below about wing pattern characters. In DNA, a combination of the following base pairs is diagnostic: aly291.6.1:G208T, aly971.19.1:T1347C, aly207.8.6:A119G, aly207.8.6:A118C, and aly423.15.3:A165T.

Etymology. The name is a masculine noun in the nominative singular, the first syllable of the type species name.

Species included. The type species and Lychnuchoides sebastiani Salazar and Constantino, 2013 .

Parent taxon. Tribe Pericharini Grishin, 2019 .

Comments. The lack of monophyly between O. ozias and L. saptine took us by surprise due to close similarity in their wing patterns, for example, a nearly perfect agreement in the outline of forewing yellow patch and the resemblance in pale stripes separating darker patches on ventral hindwing. In the field, the best character to distinguish between the two genera is the pattern on the forewing apex below. In Oz, new genus, the wing is mostly brown past the yellow discal band, and the pale overscaling starts near the apex, at more than half the distance from the yellow band and apex. In Lychnuchoides , the wing is with a smaller brown patch (less than half of the distance from the yellow band to apex along costa) past the yellow discal band, and the rest of the apical area is occupied by pale overscaling, typically with several elongated brown spots inside it.

Figures

Figure 17. Genomic tree of Carystina, Pericharini, Megathymini and relatives. Clades corresponding to new subtribes described in this work are highlighted in green. See Fig. 1 legend for other notations.