Bombyliidae (Insecta: Diptera) of Quilamula in the reserve area Sierra de Huautla, Morelos, Mexico.

摘要

Mexico is a diversity centre for Bombyliidae, the seventh most diverse family within Diptera. Bombilids are important because some species are pollinators and others are parasitoids. This study describes the diversity of Bombyliidae in Quilamula, Morelos, located in the reserve Sierra de Huautla. The field work was made during 12 months between 2003 and 2004, using aerial net and Malaise trap. Methods for species richness estimation were applied, like species accumulation curves and non-parametric models. Ninety-seven species were captured, from which 5 are new records for Mexico and 12 are new for Morelos. Clench's is the species accumulation model which best fits to the data, compared with exponential and logarithmic models. Clench model estimates 113 species in the study area, accounting for 85.7% of the total. The non-parametric models ICE, ACE, and Chao2 subestimates diversity and Jack-Knife 2 gives and estimates close to the Clench model estimate. ICE and Chao2 are the non-parametric models which best perform. The species richness is greater in rainy season with the maximum in October, although abundance is greater in dry season with the maximum in March. Temporal distribution and habitat preference of species agrees with parasitoids and flower-loving habits of Bombyliidae. Some behaviours observed during the field work are described, in particular what appears to be territorial and mate behaviours. An illustrated key for the genera and some species found are presented. The study area is recognized as a diversity centre for Bombyliidae.