Fauna de odonatos (Insecta: Odonata) en los ríos del norte de Burgos (Castilla y León, España)

In 2019, rivers in northern Burgos province were surveyed in search of adult odonata by means of 52 points prospected twice in June-July and August-September. Thirty-one species (15 zigoptera and 16 anisoptera) were registered. The number of odonate species was negatively related to river slope, and positively to the presence of helophytes and submerged/floating vegetation. These relationships were basically due to the variation in generalist species richness, as the number of river specialists was only related to the presence of submerged/floating vegetation. Ischnura pumilio and Gomphus vulgatissimus were added as new species for Burgos, and the first records of Coenagrion caerulescens in the current century were obtained as well.