The Metztitlán river basin, in Hidalgo, Mexico, was characterized on the basis of its aquatic insect fauna and limnological parameters. Sampling was done quarterly along a year cycle and 75 Km of river length. Principal Component Analysis ordered sampling sites and separated corresponding stations into high, median, and low zones....
The neuropterans are depredatory insects as larval stage as adult, they are considered natural biological controllers. In Mexico are reported 349 species, at present in the state of Tlaxcala only there are two species. A faunistic study and analysis of diversity of the species of Coniopterygidae and Hemerobiidae of the...