Edited by Neusa Hamada -INPA Neotropical Entomology 39(4):486-495 (2010) Necrophilous Coleoptera (Scarabaeidae, Silphidae y Trogidae) of Malinalco, State of Mexico, Mexico ABSTRACT -Collections were made during one year, between August 2005 and July 2006, in Malinalco, State of Mexico, in three sites of tropical deciduous forest, a pasture and a induced forest of pine-oak, established in a altitudinal gradient ranging from 1,253 m to 2,300 m. The total of 7,680 specimens Scarabaeidae, Silphidae and Trogidae were captured through NTP-80, representing 18 genera and 38 species. Onthophagus and Canthon contained 46% of the richness of Scarabaeidae. The more distant sites were complementary in their species composition. The lowest complementarity occurred between sites with tropical deciduous forest. It revises the material collected through pitffal traps and light traps funnel type, increasing the list of 38 to 50 species in the study area. Between 40% and 50% of the species in Malinalco are distributed in localities of the province of the basin Balsas and localities of the province of the Sierra Madre del Sur, and 30% in the localities of the province of Pacifi ca coast. For the fi rst time 17 species of Scarabaeidae and three Trogidae were reported for the State of Mexico.KEY WORDS: Diversity, complementarity, faunistic similarity Para el Estado de México se han registrado 86 especies de Scarabaeidae Laparosticti de 33 géneros; cinco de Silphidae de tres géneros y tres de Trogidae incluidas en dos géneros

Necrophilous beetles diversity (Coleoptera: Scarabaeidae, Silphidae, Staphylinidae and Trogidae) in a semiarid area of Zapotitlán de las Salinas valley, Puebla, Mexico. Mexico is constituted of arid and semiarid areas in more than half of its land extension, where most of their resources are available only during the rainy season. For those species that recycle resources, such as the carrion fauna, this represents a highly active season; however, the biological and diversity patterns of carrion fauna are poorly understood in these areas. Here, we studied the abundance, diversity and richness of the Scarabaeidae, Silphidae, Staphylinidae and Trogidae families in the Zapotitlán de las Salinas Valley in Puebla, Mexico. Over a one-year period, monthly samples were collected from five different vegetation systems that included the scrublands, a columnar cactus landscape, and altered vegetation. Samples were collected with the use of NTP-80 traps baited with squid, and data on abundance and richness were obtained and evaluated, with respect to monthly precipitation and sampling site location. We collected a total of 613 insects from 12 genera and 15 species. Across systems, Staphylinidae showed the greatest richness (nine species) and abundance (74.2%), followed by Scarabaeidae (21.9%), Silphidae (2.9%) and Trogidae (1%). Significant differences were observed between sites and months; nevertheless, no relationship was observed between abundance and temperature or precipitation. Across taxonomic groups, abundance and richness were most evident for scrub sites, while a greater abundance during the dry season was obtained. The results of this study indicated that the carrion faunal community composition is closely related to the type of vegetation and did not depend on the rainy season. In spite that lesser carrion fauna was observed in this area when compared to other regions of Mexico, this report constitutes a significant contribution to our understanding of the ecological role of this fauna in arid areas.

The ensembles of beetles and the seasonal distribution of diversity attracted to carrion in an artificial forest result of the urbanization of the Protected Natural Area Sierra de Guadalupe in central Mexico was studied. Monthly samples were collected from June 2017 to May 2018 using four carrion traps type NTP-80. A total of 3,434 individuals belonging to 17 families and 58 species were collected, of which 13 were identified to the species level and 45 to morphospecies. The species estimators suggest that was registered between 77.3% (Chao 1) and 80.5% (ACE) of the species. The families Staphylinidae, Silphidae, Carabidae, Leiodidae, Histeridae and Nitidulidae grouped 95.8% of the total abundance and 67.2% of the species. The family Staphylinidae was the higher richness with 21 species, the remaining had less than five species, of which the family Silphidae was the most important with four species, and represented the necrophagous guilt which was the second most abundant making up 21% of all beetles collected after the predators (62%). The diversity was higher in rainy than in drought season, the faunistic similarity between seasons was low (J=0.37), with 32 species exclusive of rainy and four of drought season. In the area inhabit wide-ranging species adapted to perturbation conditions, an endemic species, and converge montane elements with species of semiarid environments, therefore, is important to maintain the connection of the artificial forest with the forest area in upper parts of the Sierra de Guadalupe, and conserve the fragments of xeric shrubland that are scarce in the basin of Mexican Valley, so as to mitigate the impact of the urbanization in the diversity of beetles associated to carrion

Las cañadas de Coatepec Harinas, ubicadas al sur del Nevado de Toluca, son de interés para la conservación por su integridad biológica. En este estudio se presenta la composición de Scarabaeidae, Geotrupidae, Hybosoridae, Trogidae y Silphidae, además se analizan aspectos como abundancia, riqueza, diversidad y estacionalidad. Esta información servirá para el desarrollo de estudios comparativos posteriores realizados fuera de las cañadas. Los muestreos fueron mensuales durante un año con trampas tipo NTP-80 cebadas con calamar, en un bosque de encino con elementos de mesófilo de montaña. Se obtuvieron 1,513 individuos pertenecientes a 9 especies y 8 géneros. Silphidae (94.3%) fue la familia más abundante, seguida por Scarabaeidae (4.7%), ambas con 3 especies cada una; las restantes, una especie y menos de 10 ejemplares. Nicrophorus mexicanus Matthews, 1888 (Silphidae), Nicrophorus olidus Matthews, 1888 (Silphidae), Oxelytrum discicolle (Brullè, 1840) (Silphidae) y Oniticellus rhinocerulus Bates, 1889 (Scarabaeidae) agruparon el 99%. Germarostes Paulian, 1982 (Hybosoridae) se registró por primera vez para el Estado de México. La estacionalidad fue marcada: el 87.5% de la abundancia y las 9 especies obtenidas se registraron en las lluvias. La diversidad y la cobertura de la vegetación, así como la presencia de arroyos, propiciaron condiciones favorables para las 4 especies más abundantes. Derechos Reservados © 2016 Universidad Nacional Autónoma de México, Instituto de Biología. Este es un artículo de acceso abierto distribuido bajo los términos de la Licencia Creative Commons CC BY-NC-ND 4.0.

Se realizó el estudio de fauna de la escolitinos y platipodinos en una zona semiárida de Zapotitlán de las Salinas, Puebla, México. Se realizaron muestreos mensuales durante un año, de abril de 1998 a marzo de 1999, empleando trampas de tipo NTP-80 cebadas con calamar. El líquido conservador compuesto de ácido acético y alcohol, sirvió como atrayente para estos grupos. Las trampas fueron distribuidas en cinco localidades (cactáceas columnares, mezquital de terrazas, mezquital ribereño,  mezquital no fragmentado y una vegetación no alterada). Se capturaron 328 individuos, cinco especies de Scolytinae y una de Platypodinae. Se registraron por primera vez para el estado de Puebla a Premnobius cavipennis Eichhoff, 1878, Xyleborus posticus Eichhoff, 1869, Monarthrum pennatum Wood y Bright, 1992 y Euplatypus parallelus (Fabricius, 1801). La mayor abundancia y riqueza de especies fue observada en el mezquital ribereño y la presencia de estos grupos de Curculionidae de forma abundante al final de la época de lluvias, lo que podría estar asociado con la disponibilidad de recursos en tiempo y espacio. Este estudio contribuye de manera importante al conocimiento de los escolitinos y platipodinos del estado de Puebla, México.