Nhambikuara mima ( Butler, 1867 ) Freitas & Barbosa & Zacca & Marín & Beirão & Silva & Casagrande & Espeland & Willmott, 2018

Freitas, André V. L., Barbosa, Eduardo P., Zacca, Thamara, Marín, Mario Alejandro, Beirão, Marina V., Silva, André R. M., Casagrande, Mirna M., Espeland, Marianne & Willmott, Keith R., 2018, Before it is too late: description of a new genus and species of butterfly from a highly threatened Brazilian biome, Revista Brasileira de Entomologia 62 (2), pp. 148-158 : 153-156

Nhambikuara mima ( Butler, 1867) comb. nov. ( Figs. 3–6 )

Euptychia mima Butler, 1867: 500 [no illustration].

Zischkaia mima ; Lamas 2004: 223. – Brévignon & Benmesbah, 2012: 46.

154 Freitas, A. V. L. et al. / Revista Brasileira de Entomologia 62 (2018) 148–158

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Diagnosis. Nhambikuara mima comb. nov. ( Fig. 3 ) differs from Nhambikuara cerradensis sp. nov. by the slightly more elongated ocelli in the VHW, wider lines on the VW, the male genitalia with a truncated uncus, about the same length as the gnathos, the apex of the valva with a developed dorsal serrated projection, the aedeagus with short paired cornuti, the female genitalia with a rectangular lamella antevaginalis, which is ventrally concave at median region in apical portion, the corpus bursae with a sclerotized half-ring at close to ductus region, and latero-ventrally short, paired signa.

Taxonomic comments. Euptychia mima Butler, 1867 was described based on an unstated number of specimens from Tapajós, Pará, Brazil. One of them is designated herein as the lectotype of Euptychia mima to fix the identity of the name; this specimen has the following labels: /Type H.T./ Euptychia mima Butler. Monog [raph]/B.M.TYPE No Rh 3250 Euptychia mima ♂ But’l[er]./Type of Species/Tapajos, Amazonas, H.W. Bates./Goldman-Salvin Coll. 1904 – 1. Euptychia mima, Butl [er]./mima/; and two other labels will be added later: / Lectotypus / Lectotypus Euptychia mima Butler, 1867 . A.V.L. Freitas, E.P. Barbosa, T. Zacca, det. 2018/. Deposited at NHMUK. The last two labels will be sent to the curator later.

Butler (1867) treated this species in “Division VI” of Euptychia , characterized by the absence of ocelli on both DW and VFW, and six black and ovoid ocelli with silvery pupils in VHW. In this division were also included Euptychia saundersii Butler, 1867 , Euptychia fumata Butler, 1867 , Euptychia pacarus Butler, 1867 and Euptychia insignis Butler, 1867 , species currently placed in Zischkaia Forster, 1964 . When describing Zischkaia, Forster (1964) did not include E. mima , E. pacarus or E. insignis , but only E. fumata and E. saundersii . The current taxonomic classification for Zischkaia is that of Lamas (2004), who partially followed Butler’s arrangement (except by treating E. insignis within an Incertae sedis group), but also included E. mima in the genus. An ongoing revision of Zischkaia (Nakahara et al., in prep.) shows that E. mima is not closely related to other Zischkaia , based on morphological and molecular evidence, reinforcing its removal from that genus.

Variation. Sexual dimorphism is not well marked, but, like virtually all euptychines, females are typically larger and paler than males and have more rounded wings. Intraspecific variation is also low, being restricted to the size of VHW ocelli and the irregularity of the VHW median line.

Male genitalia ( Fig. 4 ). Tegumen dorsally flattened, anterior margin concave at median region; gnathos about the same length of uncus and curved upwards; uncus broad and straight, apex curved downwards, basal third wide; appendices angulares reduced; anterior projection of saccus 1/3 length of valva; fultura superior absent; fultura inferior sclerotized in U-shape; valva with a developed costae, dorso-apical region serrated with a small dorsal projection; aedeagus with anterior region curved upwards, posterior region about 2 times longer than anterior region, short paired cornutal patches.

Female genitalia. 8th tergite sclerotized, not fused with the lateral expansions of lamella antevaginalis, spiracle absent; papilla analis developed, sub-squared, basal half strongly sclerotized, setae sparsely at distal region, apophysis posterior absent; lamella antevaginalis fused to lamella postvaginalis forming the squared sterigma which is strongly sclerotized and developed; ductus bursae totally membranous, as long as corpus bursae, weakly sclerotized half-ring between ductus bursae and corpus bursae, paired signa dorsally.

Distribution ( Fig. 6). Nhambikuara mima comb. nov. is present in the humid forests both in the Amazon region (including records from French Guiana – Brévignon and Benmesbah, 2012) and in northeastern Brazil (Alagoas and Pernambuco).

Examined material. 9 males and 7 females (4 specimens dissected). VENEZUELA – Bolívar: Canaima, [6 ◦ 14 l 23 llN,62 ◦ 51 l 8 llW], 1 female, 10 Aug 1973, FLMNH-MGCL-278955* (MGCL). GUYANA – Takutu-Upper Essequibo: Kanuku Mts., Nappi Creek, 500–1000 m, 03 ◦ 20.7 lN 59 ◦ 34.2 lW, 1 female, 21.I–10.III.1999, Fratello S., Hanner R., Hendricks S. & Williams R. leg. (USNM), 1500–2700 m, 03 ◦ 18.8 lN 59 ◦ 33.9 lW, 1 female, 21.II–10.III.1999 (DNA voucher LEP-18705), Fratello S., Hanner R., Hendricks S. & Williams R. leg. (USNM). SURINAM – Brokopondo: Bronsweg, 2 males, 8 Mar 1971, FLMNH-MGCL-278952, FLMNH-MGCL-278953, (MGCL). FRENCH GUIANA – St-Laurent du Maroni: Maroni River, 1 male, FLMNH-MGCL-278954 (MGCL). BRAZIL – Amazonas: Nhamundá – Rio Nhamundá, Cuipiranga , 1 ◦ 53 l 58 llS 57 ◦ 02 l 59 llW, 1 male, 20–22.V.2008, Mielke & Casagrande leg., DZ 35.877 (DZUP). Pará: Faro – Co[mpanhia]mi[neradora]sa[ntarém], 1 male, 24.VII.1973, K. S. Brown leg., ZUEC-LEP 10264 (ZUEC). Rondônia: Porto Velho – Abunã, U[sina] H[idr]E[létrica] Jirau, 250 m, 1 female, 15.IX.2012, (DNA voucher MGCL-LOAN-550*), A.V.L. Freitas leg., ZUEC-LEP 10107 (ZUEC). Maranhão: Santa Luzia – Santa Luzia-Açailândia, Fazenda Terrasse road, km 108, 1 male, 3.VIII.1974, Mielke leg., DZ 35.878 (DZUP). Pernambuco: Sirinhaém – Matas da Usina Trapiche,

1 male, 14.VIII.2006, B-834/TPICH, (DNA voucher MGCL-LOAN-406), A.V.L. Freitas leg. ( ZUEC-AVLF). Alagoas: Rio Largo – Utinga , 1 female, 16.VI.1949, ex-coll. A. Cardoso, DZ 34.823* ( DZUP); Ibateguara – Serra Grande , 1 male, 16.XI.2012 (DNA voucher MGCL-LOAN-175*), D.H.A. Melo leg., ZUEC-LEP 10106 ( ZUEC). PERU – Huánuco: Cordillera del Sira , [9 ◦ 25 lS,74 ◦ 45 lW], 800 m , 2 females, Sep 1987 – Aug 1988, Exp. Universidad Vienna, MUSM-LEP-105652, MUSM-LEP-105653 ( MUSM) .

BOLIVIA – La Paz: Zongo [16 ◦ 7 lS,68 ◦ 2 lW], 1 male, Garlepp leg. ( MNHU) .

Figures

Fig. 3. Nhambikuara mima comb. nov. A – male, dorsal (DZ 35.877); B – male, ventral; C – female, dorsal (DZ 34.823); D – female, ventral.

Fig. 4. Nhambikuara mima comb. nov., male (MGCL-LOAN-175) and female genitalia (FLMNH-MGCL-278955). A – lateral; B – dorsal; C – ventral; D – aedeagus, lateral; E – aedeagus, dorsal; F – female lateral; G – female ventral.

Fig. 5. Natural habitats of Nhambikuara cerradensis gen. et sp. nov. in the Cerrado: A – Itirapina, São Paulo; B – Brasília, Distrito Federal and Nhambikuara mima comb. nov.: C – Sirinhaém, Pernambuco; D – an individual in its natural habitat in Guiana, Surama, north Rupuruni (Photo:David Geale).