Fauna de coleópteros lamelicornios de Santiago Xiacui, Sierra Norte, Oaxaca, México

Abstract

A comparative study of the species richness, abundance and phenology of the Scarabaeoidea beetle fauna of the mountains of Santiago Xiacui, Oaxaca, Mexico is presented. Monthly data were obtained during June 2003 to June 2004 in pine-oak forests and cloud florests, located at 1,946-2,363 m of altitude. Records of 74 species, 36 genera, 23 tribes and 11 subfamilies of Melolonthidae, Scarabaeidae and Passalidae, represented by 4,317 specimens, are included. Onthophagus chevrolati retusus Harold, Deltochilum mexicanum Burmeister, Phyllophaga vetula (Horn), P. ravida (Blanchard), Paranomala inconstans (Burmeister), Xyloryctes telephus and Vindex agnoscendus Percheron, were the most abundant species in the samples. Adults of many species are active during May to August. High species richness was found in the forests, where the species of Phyllophaga, Paranomala, Xyloryctes, Deltochilum, Onthophagus and Vindex, are important consumers of roots, leaves, leaflitter, rotten wood, dung and carrion. Five species of Phyllophaga, Paranomala, Peltotrichius, and Copris are recorded by the first time for the state of Oaxaca.Se presenta un estudio comparativo de la fauna de coleópteros lamelicornios (Melolonthidae, Scarabaeidae y Passalidae) establecida en el bosque mesófilo de montaña, y los bosques de pinos y encinos situados entre los 1,946 y 2,363 m de altitud en el municipio de Santiago Xiacui, Sierra Norte del estado de Oaxaca, México. Entre junio de 2003 y junio de 2004 se colectaron 4,317 ejemplares que representan a 74 especies de 36 géneros incluídos en 11 subfamilias y 23 tribus. Onthophagus chevrolati retusus Harold fue la especie mas abundante, equivalente al 67.7 % de la muestra total. Otras especies abundantes fueron Deltochilum mexicanum Burmeister, Phyllophaga vetula (Horn), P. ravida (Blanchard), Paranomala inconstans (Burmeister), Xyloryctes telephus y Vindex agnoscendus Percheron. Los adultos de la mayoría de las especies están activos entre junio y agosto. Se destaca la importancia de las especies de Phyllophaga, Paranomala, Xyloryctes, Deltochilum, Onthophagus y Vindex, como consumidoras de raíces, follaje, hojarasca, madera muerta, excrementos y carroña. Se citan cinco especies de Phyllophaga, Paranomala, Peltotrichius y Copris previamente no registradas en Oaxaca

Similar works

This paper was published in Acta Zoológica Mexicana (nueva serie).

Having an issue?

Is data on this page outdated, violates copyrights or anything else? Report the problem now and we will take corresponding actions after reviewing your request.