Mesene Doubleday (Lepidoptera: Riodinidae) from Parque Nacional da Serra do Divisor, Acre, Brazil, with taxonomic notes and the description of a new species
Dolibaina, Diego Rodrigo
Dias, Fernando Maia Silva
Siewert, Ricardo Russo
Mielke, Olaf Hermann Hendrik
Casagrande, Mirna Martins
Zootaxa
2016
4175
5
463
472
Bates, 1868
Bates
1868
[151,504,1077,1103]
Insecta
Lycaenidae
Mesene
Animalia
Lepidoptera
6
469
Arthropoda
species
eupteryx
A single female was collected in 2014 flying on the hilltop three meters from the ground around 16:00h. Themale illustrated in the figures 9–10 is from Reserva Catuaba, Senador Guiomard, Acre, Brazil, 700 Kmsoutheast from PNSD. Mesene eupteryx, originally described as a species, was placed by Stichel (1923)as a subspecies of M. nolaHerrich-Schäffer, [1853] ( Figs 13–14). Specimens deposited at the DZUPrevealed these two taxa in sympatry in Ilhade Maracá, Alto Alegre, Roraima, Brazil. The male genitalia of M. nola( Fig. 37) differs from that of M. eupteryx( Fig. 36) by the shorter proximal area of the valva, by the valva distally pointed instead of rounded, and the absence of a short and narrow projection in the inner surface of the valva. Based on these differences we recognize M. eupteryx stat. rest.as a valid species. Taxonomic comments on M. nolaand related species.The examination of M. nolaand other taxa during the taxonomic assessment of M. eupteryxprovided support for some further taxonomic changes. Hall & Harvey (2002)cited the additional patch of CASin the tergite 7 observed in M. margaretta(White, 1843)as unique among the species of Mesene. The study of the abdomen of M. eupteryxand M. nolarevealed the presence of the typical Mesenedistribution of CASin M. eupteryx( i.e. CASin tergites 4, 5, and 6), however, an additional patch of CASin the tergite 7 was observed in M. nola. In additional dissections of specimens of Meseneavailable at the DZUP, an additional patch of CASin the tergite 7 was also observed in M. philonisHewitson, 1874, a species placed in the “ phareus” species group by Hall & Harvey (2002). Those authors probably mistook the identity of M. philoniswith an undescribed taxon with similar wing pattern, but with the genitalia and CASpattern typical of members of the “ phareus” species group (Dolibaina & Dias, pers. obs.). Disregarding M. philonis, a species widely distributed from the Amazonbasin to eastern Brazil, Jauffret& Jauffretdescribed M. lecointrei Jauffret & Jauffret, 2008from Pará, Brazil. The distribution, wing pattern and morphology of the male genitalia of M. lecointreiand M. philonisare identical, and therefore we recognize M. lecointreias a junior subjective synonym of M. philonis( syn. nov.). Nevertheless, Jauffret & Jauffret (2008)recognized the similarity between the male genitalia of M. lecointrei( i.e., M. philonis) and M. nola, suggesting a close relationship between those species. The morphology of the male genitalia of M. margaretta( Hall & Lamas 2007, fig. 7), M. nola( Fig. 37) and M. philonis,with an entire triangular valva, distally narrow, long and pointed, with a slightly upturned tip, projecting over the aedeagus; the presence of two groups of robust spine-like cornuti, one of which divided in two subgroups, with a small patch of tiny spines in the middle; and the presence of an additional patch of CASin tergite 7 indicates that these species are closely related, belonging in the same species group. Incontrast, further studies are necessary to access the phylogenetic affinities of M. eupteryx.
1323867421
PNSD
Brazil
Km
The
Senador Guiomard
6
469
1
Acre
1323867422
DZUP
Iceland
Alto Alegre
6
469
1
Roraima
1323867420
CAS, DZUP
Brazil
Disregarding
Jauffret
Amazon
6
469
1
Para
1323867426
CAS
Brazil
7
470
In
6
469
1