Xantholinini, Erichson, 1839

Márquez, Juan & Asiain, Julieta, 2021, New Country and State Records of Uncommon Species of Staphylinids (Coleoptera: Staphylinidae) from Mexico and Guatemala, The Coleopterists Bulletin 75 (4), pp. 871-881 : 877-879

Tribe Xantholinini

Agerodes amethystinus ( Sharp, 1885)

First Records for the States of Puebla and Querétaro ( Fig. 2a ). “ Mexico: Puebla , Honey , Chila de Juárez, San Marcos River, 20°17ʹ40.3ʹʹN, 98°13ʹ36.6ʹʹW, 1500 m, cloud forest, fermented fruit trap, 8 to 15-VIII-2019, J. D. Silva Hurtado col.” (1♂, 6♀) . Same data, except: “ carrion trap ” (1♀) . Same data, except: “on log mushrooms ( Pleurotus sp. ), 5-VIII-2019, J. Márquez col.” (1♀) . “ Mexico: Querétaro , Cadereyta de Montes , Reserva de la Biósfera Sierra Gorda , El pilón, 2 km S de Valle Verde, 21°30.7ʹN, 99°10.2ʹW, bosque mesófilo de montaña, en tronco podrido, 20-VII-2007, P. Reyes- Castillo col.” (1♂) .

Previous Records ( Fig. 2a ). Mexico: Hidalgo (without locality data), Oaxaca (without locality data) and Veracruz (Córdoba, Xalapa); Venezuela ( Navarrete-Heredia et al. 2002; Sharp 1885).

New Localities for the States of Hidalgo and Veracruz ( Fig. 2a ). “ Hidalgo, Tepehuacán de Guerrero, Chilijapa , bosque mesófilo de montaña, 1401 m, 21°01.2ʹ1ʹʹN, 98°51.8ʹ2.1ʹʹW, trampa de intercepción de vuelo #2, 27-VIII a 10-IX-2011, J. Márquez col. ” (1♀). “ Veracruz: Córdoba, camino a Plan de Ayala, Loma Chica , bosque mesófilo de montaña, 1329 m, NTP-80 (calamar), 10- V a 18-VI-1999, Q. J. Santiago, J. Asiain y J. Márquez cols.” (1♂, 3♀). “ Veracruz: Huatusco, Coxcontla ,

bosque mesófilo de montaña perturbado, 1250 m, NTP-80 (calamar), 03- VI a 01-VII-1995, M. A. Pensado y Q. J. Santiago cols.” (1♀). “ Veracruz: Huayacocotla, San Antonio , 20°40ʹ23.4ʹʹN, 98°23ʹ39.6ʹʹW, bosque mesófilo de montaña, 1434 m, NTP-80 (calamar), 28- V a 2-VII-2006, F. Ramírez col.” (1♀). “ Veracruz: Ilamatlán, Xoxocapa , 20°48ʹ19.4ʹʹN, 98°20ʹ31.6ʹʹW, bosque tropical subcaducifolio, 380 m, NTP-80 (calamar), 1 a 29-VII-2006 , F. Ramírez col.” (1♀). “ Veracruz: Misantla, Salvador Díaz Mirón , bosque mesófilo de montaña, NTP-80 (calamar), 4 a 9-VII-1997, Q. Santiago, V . Saynez, J. Márquez cols.” (5♂, 12♀). “ Veracruz, Zongolica, Amatitla , carpotrampa, 22-VI-2012, E. Mora y L. Delgado cols.” (1♂, CE-IEXA) .

Biogeographic Comment. The distribution of this species shows a geographic disjunction from Mexico to Venezuela. We have two possible explanations. The first is that records are lacking in most Central American countries and in some northern countries of South America, and the second alternative is that there are two different species: one in Mexico and the other in Venezuela. A similar situation was observed in the study of the Homalolinus Sharp species, in which Homalolinus canaliculatus (Erichson) presented a distribution like A. amethystinus , but when studying in detail all the available specimens and the type, it was recognized as two species, one new ( Homalolinus mexicanus Márquez ) and one already described ( H. canaliculatus ) (Márquez 2003). A distribution pattern cannot be clearly established until the aforementioned problem is resolved.

Homalolinus affinis Sharp, 1885

First Record for the State of Oaxaca ( Fig. 2a ). “ Oaxaca, San Miguel Chimalapa, San Antonio-El Retén , direct collection, 16 to 22-VII-2019, A. Ramírez-Ponce col.” (1♂, 1♀) .

Previous Records ( Fig. 2a ). Mexico: Chiapas (Chilil, San Cristóbal de las Casas, Tenejapa, Tapalapa, Tuxtla Gutiérrez, Unión Juárez: Tacaná volcano) ; Guatemala (Baja Verapaz: 4 km S Purulhá, 8 km NE San Lorenzo, Izabal:Sto.Tomás- Cerro San Gil, S. P. Yepocapa-Chimaltenango, San Marcos between Sivinal and Unión Juárez-W slope Tacana volcano, Zacapa: El Progreso- Estancia de la Virgen) (Márquez 2003; Márquez and Morrone 2003) .

Biogeographic Comment. The distribution of this species was previously analyzed by Márquez and Morrone (2003), and this new state record confirms its distributional pattern limited to the Chiapas highlands province ( Morrone et al. 2017), which extends to the north up to Chimalapas Mountains in the state of Oaxaca.

Homalolinus mexicanus Márquez, 2003

First Record for the State of Puebla ( Fig. 2b ). “ Mexico: Puebla , Honey , Chila de Juárez, San Marcos river, 20°17ʹ40.3ʹʹN, 98°13ʹ36.6ʹʹW, 1500 m, cloud forest, on decaying trunk, 12-VI-2019, J. D. Silva-Hurtado col.” (1♂, 1♀). Same data, except: “ 8-VIII-2019, J. Márquez col.” (1♂, 2♀) .

Previous Records ( Fig. 2b ). Mexico: Chiapas (Berriozábal, Ocozocoautla), Hidalgo (Rancho Viejo), Oaxaca (Pluma Hidalgo, Portillo del Rayo ) and Veracruz (Banderilla: La Martinica, Córdoba, Fortín de las Flores, Orizaba, Santiago Tuxtla, Totutla: Mata Oscura, San Martín volcano, Xalapa) (Márquez 2003; Márquez and Morrone 2003) .

Biogeographic Comment. In the paper of Márquez and Morrone (2003), this species was recorded with some doubt for the state of Hidalgo since Rancho Viejo is a town name known also in other states, such as Veracruz, and because its distribution pattern was apparently limited to southeastern Mexico, not including the Sierra Madre Oriental province. However, the new state record presented here increases the chances that the record in Hidalgo is correct and that this species will extend its distribution from the Chiapas highland province, the Sierra Madre del Sur province and the confluence of the Sierra Madre Oriental province to the Veracruzana province. This species is endemic to Mexico; however, the possibility of recording it also in Guatemala is not ruled out, which would show more clearly that it may correspond with the Mountain Mesoamerican distribution pattern and cenocron ( Halffter 2017; Morrone 2015).

Figures

Fig. 2. Geographic distribution in Mexico and Guatemala. A) Agerodes amethystinus (red circles) and Homalolinus affinis (blue squares), B) Homalolinus mexicanus (red circles) (arrow indicates that the distribution extends south of Mexico and Guatemala; maps modified from INEGI 2018).