Further contributions to the spatulate clawed Baetidae (Ephemeroptera)

摘要

The formal new name, Camelobaetidius kickapoo, n.sp.,is given for Camelobaetidus sp. 1 of McCafferty and Davis. The species is described from the lower Rio Grande between Texas and the Mexican states of Chihuahua and Coahuila, but it has also been taken inorthwestern Colorado and the Gila River in Arizona. It is unique in North and Central America in having an intermediate number of denticles on thespatulate claws in both early and late instar larvae. Camelobaetidius warreni is shown to possess larval forecoxal osmobranchiae, and C. sinaloa is shown to be a new junior synonym of C. musseri, A revised key to the known larvae of the species of Camelobaetidius in North and Central America is given toexpress new and recent findings.