Abstract

MOSQUERA MURILLO, Zuleyma  and  SANCHEZ VAZQUEZ, Sandra Patricia. PRELIMINARY INVENTORY OF THE GENERIC RICHNESS AND DISTRIBUTION OF THE AQUATIC COLEOPTERS OF THE CHOCÓ DEPARTMENT, COLOMBIA. rev.udcaactual.divulg.cient. [online]. 2018, vol.21, n.1, pp.155-165. ISSN 0123-4226.  https://doi.org/10.31910/rudca.v21.n1.2018.674.

A preliminary record on the richness and distribution of aquatic Coleoptera in the Department of Chocó is presented. The report is made from 1824 specimens (larvae and adults) found in the Limnological Collection of Chocó «CLCH-Insec» of the Technological University of Chocó, collected in 20 municipalities at altitudes between 5m and 3202m, in 40 water streams of different order and 17 lentic ecosystems of the Atrato, San Juan and Baudó river basins. This collection includes 16 families (4 Adephaga and 12 Polyphaga) and 40 genera. Four families and 20 genera are register for Chocó for the first time. The family Psephenidae is the most abundant and most widely distributed, while Hydraenidae is of lowest abundance and distribution. The highest taxonomic richness is register for elmids with 12 genera. Rocks are the substrate with greatest abundance and specific richness. The largest taxonomic record occurs in the Atrato river basin with 16 families and 33 genera. These results show the enormous diversity of aquatic and semi aquatic beetles in the department of Chocó and the need to carry out new research to increase their taxonomic and ecological knowledge in the region.

Keywords : Limnological Collection; Coleoptera; aquatic ecosystems; Insecta..

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