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El conocimiento de la diversidad de estafilínidos en Colombia es aún escaso, y lo es aún más en ecosistemas de alta montaña que son uno de los hábitats más amenazados. En este estudio se caracterizó la comunidad de Staphylinidae en un paisaje alto andino en proceso de restauración ecológica, sobre los Andes Centrales. Utilizando características ambientales y de vegetación, se diferenciaron cinco elementos del paisaje: pastizal, plantación forestal, plantación forestal en regeneración, bosque secundario y bosque secundario maduro. Se definieron transectos lineales empleando sacos Winkler y necrotrampas como métodos de colecta. Se comparó la abundancia, riqueza y estructura de la comunidad entre los elementos; y se realizó una correlación múltiple para evaluar la relación entre algunas variables ambientales y la riqueza de estafilínidos. Se realizó un análisis de escalamiento multidimensional no métrico basado en la composición de especies de los sitios. El índice de complementariedad se usó como medida de diversidad beta. Se colectaron 3.065 individuos representando, 11 subfamilias, 34 géneros y 122 morfoespecies. Los valores de diversidad alfa fueron diferentes en los cinco elementos del paisaje, siendo mayor en los sitios con mayor regeneración. La abundancia y riqueza de estafilínidos se correlacionó negativamente con la temperatura del suelo y positivamente con la cobertura vegetal. Aunque la composición de especies fue estadísticamente diferente entre los sitios, no se encontró una separación entre los bosques secundarios y la plantación en regeneración. La alta diversidad beta de este paisaje altoandino evidencia su importancia para la conservación biológica.

The intensification of coffee plantations has driven biodiversity loss worldwide, but little is known about how it affects the ecological structure of Andean rove beetle communities. The rove beetle diversity was estimated in a coffee‐intensification gradient located on the western slope of Central Andes (1300–1800 m elevation). Sixteen sampling sites in four land uses were selected: four native forest patches and twelve coffee production systems (four polygeneric shade coffee plantations, four monogeneric shade coffee plantations, and four sun‐grown coffee plantations). We used unbaited pitfall traps and leaf litter extraction and recorded environmental and vegetation variables in each land use. 101 staphylinid species were collected in 12 subfamilies and 45 genera (N = 522 individuals). We recorded for the first time the subfamily Leptotyphlinae in Colombia. Anotylus sp. 1 was the most abundant species with about 16% of the total individuals, while 60% of the remaining species showed <2 individuals. Native forest and polygeneric shade coffee plantations were more diverse than monogeneric shade and sun‐grown coffee plantations (for all qD measures). Monogeneric shade coffee plantations were the least diverse in all studies. Species composition was different between forests and coffee plantations, and the sun‐grown coffee had a low number of exclusive species. The rove beetle diversity did not show a linear reduction with the intensification levels of the coffee plantation, and the sun‐grown coffee did not represent an absolutely hostile environment. We discuss the role of staphylinid as model group for comparative ecological studies in the tropical agricultural landscape.

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The monotypic genus Linoderus Sharp, 1885 was described based on a species from Panama and since the original description nearly nothing has been added to its taxonomical knowledge. The aim of the present paper is to describe a new species of the genus from Colombia and to report the genus for the first time from South America, adding some biological notes of the species.

The genus Megarthrus Curtis 1829 with about 139 species described around the world, is the largest of the subfamily Proteininae (Coleoptera: Staphylinidae) (Cuccodoro 2011). Megarthrus is distributed worldwide (Cuccodoro 1999) but it is apparently more diverse in the Holartic region (Navarrete-Heredia et al. 2002). However, the South American fauna is underestimated because many of the collected specimens are not yet described (Cuccodoro 2011). Newton et al. (2005) cited the genus as probable in Colombia because some species are known from Central America and northern South America, but until now, no species has been published from Colombia. Therefore, M. andinus sp. nov. represents the first record of the genus and subfamily for this country.

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