An annotated checklist of terrestrial flatworms (Platyhelminthes: Tricladida: Geoplanidae) from Mexico, with new records of invasive species from a citizen science platform and a new nomen dubium Author Luna, Manuel De 0000-0002-0746-0507 Universidad Autonoma de Nuevo Leon, Ciudad Universitaria, P. C. 66451, San Nicolas de los Garza, Nuevo Leoon, Mexico scolopendra 94 @ gmail. com; https: // orcid. org / 0000 - 0002 - 0746 - 0507 scolopendra94@gmail.com Author Boll, Piter Kehoma Universidade do Vale do Rio dos Sinos, Avenida Unisinos, 950, 93022 - 750, São Leopoldo, RS, Brazil text Zootaxa 2023 2023-06-06 5297 4 518 532 http://dx.doi.org/10.11646/zootaxa.5297.4.3 journal article 10.11646/zootaxa.5297.4.3 1175-5326 8009087 92A93902-69B9-4B4E-8FBA-79714AF43FFB Bipalium kewense Moseley, 1878 Figs. 1, 2 . Winsor (1983 : figs. 1–11; MEXICO : State Unspecified). Ogren & Kawakatsu (1998: 442 ; MEXICO : Tamaulipas ). Kawakatsu et al . (2002: 6–7 ; MEXICO : Queretaro , San Luis Potosi ). de Luna et al . (2022: 925–935 ; figs. 1B, 2–3, 4; MEXICO : Baja California , Chiapas , Ciudad de Mexico , Coahuila , Colima , Durango, Estado de Mexico, Guanajuato, Hidalgo, Jalisco, Michoacan, Morelos, Nayarit, Nuevo Leon, Oaxaca, Puebla , Queretaro, San Luis Potosi, Tamaulipas, Tlaxcala, Veracruz , and Zacatecas ). External diagnosis ( de Luna et al . 2022 ). An elongate species, up to 80 cm . Head laterally expanded into a semilunate head plate with recurved lappets. Dorsal ground color light brown; head with the same color as the dorsum or slightly darker. Dorsum with five longitudinal black to dark-gray or dark-brown stripes: one median, a lateral pair, and a marginal pair. Median stripe black, narrow, and well-marked; it starts behind the neck and broadens over the pharyngeal area. Lateral stripes lighter, broader, and with diffuse margins. Marginal stripes narrow, dark, and well-marked. Lateral and marginal stripes of each side unite behind the neck to form an incomplete collar. Ventral surface light-ochre, with white creeping sole distinct, ridged, and delineated by paired, narrow, diffuse grayish, longitudinal stripes which extend from the ventral portion of the collar to the posterior end; collar interrupted on each side of creeping sole. Given its semilunate head plate, Bipalium kewense can only be confused with Bipalium vagum . This species is much larger than Bipalium vagum and lacks the complete black collar in the neck region that Bipalium vagum has. Remarks . Previously, de Luna et al . (2022) overlooked the work of Ogren & Kawakatsu (1998) which has a record for Tamaulipas as well as the work of Kawakatsu et al . (2002) which has records for Queretaro and San Luis Potosi .