Fantastic lizards and where to find them: cis-Andean microteiids (Squamata: Alopoglossidae & Gymnophthalmidae) from the Colombian Orinoquia and Amazonia Author Diago-Toro, María F. Programa de Biología, Facultad de Ciencias Básicas y Tecnologías, Universidad del Quindío, Armenia, Quindío, Colombia. Author García-Cobos, Daniela Subdirección de Investigaciones, Colecciones Biológicas, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, carrera 8 # 15 - 08, Claustro de San Agustín, Villa de Leyva, Boyacá, Colombia. Author Brigante-Luna, Giovanni D. 0000-0001-6823-2383 Grupo de investigación de Biodiversidad del Caribe Colombiano, Semillero de Herpetología, Programa de Biología, Universidad del Atlántico. https: // orcid. org / 0000 - 0001 - 6823 - 2383 Author Vásquez-Restrepo, Juan D. Programa de Posgrado en Ciencias Biológicas, Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad de México, México. text Zootaxa 2021 2021-11-11 5067 3 377 400 journal article 3574 10.11646/zootaxa.5067.3.3 937e9cfe-ea1e-4891-b147-91ab13a31d78 1175-5326 5681919 F64E5226-B4DD-44A3-A83E-E05928B82F4B Alopoglossus bicolor ( Werner, 1916 ) Distribution: Endemic to Colombia , along the upper Magdalena River Valley and the adjacent Cordillera Oriental, including its eastern foothill in the Meta department ( Harris 1994 ; Fig. 4A ). Similar species: Alopoglossus bicolor can be easily distinguished from all other sympatric and similar species of the genus due to the lack of prefrontal scales (present in A. atriventris , A. avilapiresae , A. brevifrontalis , and A. buckleyi ). For a more detailed description see Harris (1994) . Remarks: Harris (1994) suggested that specimens from Portachuelo in the department of Meta may correspond to a hybrid population between " Ptychoglossus bicolor " (= A. bicolor ) and " Ptychoglossus nicefori " (= A. brevifrontalis ), which he called “ Ptychoglossus cf. bicolor ”. However, based on the morphological characters provided by Harris (1994) , the specimen we examined from Portachuelo is in agreement with A. bicolor .