Xenochironomus ceciliae Roque et Trivinho-Strixino, 2005

Xenochironomus ceciliae Roque and Trivinho-Strixino 2005: 232

Material examined. Holotype: BRAZIL, São Paulo/Mato Grosso do Sul state, Paraná River, 20°45”S 51°40’W, 09.vii.2002. 1 male, leg.: Roque, F. O. Paratypes: 4 males, 5 females, 5 pupal exuviae and 5 larvae, same data of holotype.

Diagnosis. Xenochironomus ceciliae can be separated from other species in the genus by the following characteristics: male, apex of anal point not surpassing apex of inferior volsella; setae on the median portion of the anal tergite divided into two areas; inferior volsella with several setae and superior volsella pediform; apex of inferior volsella rounded. Pupa, sternites I and II with posterior bands of clear spines; pedes spurii A present on segment IV and prealar tubercle present. Larva, labral sclerite 1 undivided; mentum with odd number of teeth and median tooth of mentum simple.

Comments. Larvae of X. ceciliae were collected in the Paraná River, São Paulo associated with Oncosclera navicella (Carter, 1881) and Corvospongilla seckti (Bonetto et Ezcurra de Drago, 1966).