Neomaenas Wallengren, 1858

Matz, Jess & Brower, Andrew V. Z., 2016, The South Temperate Pronophilina (Lepidoptera: Nymphalidae: Satyrinae): a phylogenetic hypothesis, redescriptions and revisionary notes, Zootaxa 4125 (1), pp. 1-108 : 32-33

Neomaenas Wallengren, 1858

Type species: Neomaenas servilia Wallengren, 1858 = Stibomorpha Butler, 1874

Type species: Stibomorpha decorata Butler, 1874 = Spinantenna Hayward, 1953 syn. nov.

Type species: Argynnis tristis Guérin-Ménéville, [1830] = Quilaphoetosus Herrera, 1966 syn. nov.

Type species: Satyrus monachus Blanchard, 1852

Diagnosis. Like Auca , Neomaenas bears a well-developed M1-M3 ocellus on the ventral side of the forewing and a trapezoidal hindwing, barely crenate at the termen with the wing excavated between 1A+2A and the anal vein. Though specimens were unavailable to study more thoroughly, the holotype of N. inornata fits this profile of Neomaenas , its VHW patterning similar to that of N. simplex , but with a single white ocellus ringed in black in each cell between Rs and M2 and lacking the white M3 triangle. With the exception of N. simplex and N. inornata , Neomaenas exhibits a clearly defined postmedian band on the ventral side of the hindwing or a strongly contrasting pattern as in N. edmondsii . Antennae terminate in a spatulate club and eyes may be naked as in N. servilia and N. simplex , sparsely hairy as in N. poliozona , N. coenonymphina , and N. wallengrenii , or hairy as in N. monachus . All except N. monachus lack androconia on the male forewings. Most have unsegmented foreleg tarsi, N. fractifascia with both males and females having three tarsal segments and N. servilia females with four tarsal segments. N. wallengrenii exhibits unarticulated pseudosegmentation in the females. Palps are usually striped longitudinally, except N. poliozona and N. wallengrenii , all species with the terminal segment cylindrical. Male genitalia with the uncus narrow and finger-like, N. monachus slightly wider at the base, and with the aedeagus usually unadorned, except N. tristis which has miniscule serrations at the distal end.

Remarks. This genus is distributed in Chile from southern Valparaiso to northern Los Lagos province with many species that can be found in the vicinity of Termas de Chillán in Bío-Bío province.