Selvasaura evasa ECHEVARRÍA, VENEGAS, GARCÍA-AYACHI & SALES-NUNES, 2021
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Selvasaura evasa
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| Higher Taxa | Gymnophthalmidae (Cercosaurinae), Sauria, Gymnophthalmoidea, Squamata (lizards) |
| Subspecies | |
| Common Names | E: Elusive Microtegus S: Microtegúes elusivo |
| Synonym | Selvasaura evasa ECHEVARRÍA, VENEGAS, GARCÍA-AYACHI & SALES-NUNES 2021 |
| Distribution | N Peru (San Martín) Type locality: San Martín Department, Mariscal Cáceres Province, Huicungo District, Laurel; 06°41'2"S, 77°41'44.3"W; 2,762 m |
| Reproduction | |
| Types | Holotype. CORBIDI 15119, adult male; 02 Nov. 2014; L.Y. Echevarría, A.C. Barboza and J. Briones leg.; (Figs 1, 2). Paratypes. Peru • 2 ♀ adults, 1 ♀ subadult, 2 juveniles, collected with the holotype; CORBIDI 15118 (Fig. 3A, B), 15120, 15117, 15115–16 • 2 ♂ adults; Amazonas Department, Bongará Province, Yambrasbamba District, Copal; 05°46'36.317"S, 77°50'47.197"W; 2,582 m; 22 Jun. 2017; P.J. Venegas and J.C. Chávez-Arribasplata leg.; CORBIDI 18900 (Fig. 3C, D), 18901 • 1 juvenile; Amazonas Department, Chachapoyas Province, Chachapoyas District, Gajmal; 06°16'30.885"S, 77°41'41.896"W; 2,139 m; 13 Oct. 2018; P.J. Venegas and L.A. García-Ayachi leg.; CORBIDI 19955 (Fig. 3E, F) • 1 ♂ adult; San Martín Department, Rioja Province, Pardo Miguel District, Fundo Alto Nieva 05°40'13.919"S, 77°45'45.475"W; 1,938 m; 23 Jan. 2020; L.A. García- Ayachi and J. Ormeño leg.; CORBIDI 22197. |
| Diagnosis | Diagnosis: Selvasaura evasa sp. nov. can be distinguished from S. brava (character states in parentheses) by having 0–3 lateral rows of reduced scales at midbody (6–7); 9–12 femoral pores in males (7–9); keeled dorsal scales, usually flanked by longitudinal striae in adults and juveniles (slightly rugose in adults and slightly keeled in juveniles); ventral surface of tail orange in adult males (yellowish white); and a unilobed hemipenis (bilobed). Selvasaura evasa sp. nov. can be distinguished from S. sp. Ecuador (character states in parentheses) by having a larger size, SVL 41.9–46.1 mm, n = 3, in adult males (maximum SVL 39.7 mm); keeled dorsal scales, usually flanked by longitudinal striae (striated); 33–38 transverse rows of dorsal scales (25–32); 10–12 longitudinal rows of ventral scales at midbody (8–10); 9–10 scales on collar (7–9); a yellow vertebral stripe with broad dark brown stripes on each side in adult males (cream or gray with scattered black marks along sides). |
| Comment | Distribution: see map in Brito-Zampata et al. 2023: 26 (Fig. 2) |
| Etymology | The specific epithet evasa is derived from the Latin adjective ēvāsa meaning scaped and refers to the evasive nature of this species. The first specimens of Selvasaura evasa sp. nov. were collected in 2014 despite continuous surveys, since 2003 in 20 localities along the montane forests of Amazonas and San Martín departments, it is only known from four localities. |
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