Camelobaetidius janae Dominique & Thomas, 2001

Boldrini, R., Pes, A. M. O., Francischetti, C. N. & Salles, F. F., 2012, New species and new records of Camelobaetidius Demoulin, 1966 (Ephemeroptera: Baetidae) from Southeastern Brazil, Zootaxa 3526, pp. 17-30 : 23

Camelobaetidius janae Dominique & Thomas, 2001

(Fig. 10)

Camelobaetidius janae Dominique et al., 2001a: 44 ; Dominique et al., 2001b: 97; Dominique & Thomas 2002: 27; Dominique et al., 2002b: 39; Thomas et al., 2003b: 130; Salles et al., 2004b: 5; Salles et al., 2004c: 15; Salles & Serrão, 2005: 275; Domínguez et al., 2006: 131; Falcão et al., 2011: 528; Nieto et al., 2011: 8 ; Boldrini et al., 2012: 93 .

Diagnoses. Nymphs: 1) Segment II of labial palp with distomedial projection rounded and strongly projected; 2) maxillary palp segment II bifid; 3) thoracic gill absent at base of forecoxa; 4) tarsal claws with 8 – 21 denticles; 5) paraproct with 4 pointed marginal spines; 6) terminal filament as long as cerci.

Comments. This species was described based on nymphs from French Guyana ( Dominique et al., 2001a). Salles et al. (2004b) recorded it for the first time from Brazil from the state of Mato Grosso. Later, this species was recorded from the states of Rondônia ( Salles et al., 2005), Roraima ( Falcão et al. 2011) and Piauí ( Boldrini et al., 2012). Nieto et al. (2011) recorded this species for the first time from Venezuela.

As in Falcão et al. (2011), we found differences in relation to the number of denticles on the tarsal claws as originally described by Dominique et al. (2001), with 21 denticles on tarsal claws. Falcão et al. (2011) found one nymph with 8 – 9 denticles, and we have also found the same variation in two nymphs in the material from states of Minas Gerais and Espírito Santo. As in Falcão et al. (2011), we are considering this as an intra-specific variation.

Distribution. FRENCH GUIANA; VENEZUELA; BRAZIL: states of Mato Grosso, Piauí, Rondônia and Roraima. NEW RECORDS: Espírito Santo and Minas Gerais.

Material examined. Three nymphs mounted on slides, BRAZIL, Minas Gerais, Pingo da Água, Rio Sacramento , 19º49’S / 42º18’W, 29.x.2005, Francischetti, C. N. & Salles, F.F. leg ( CZNC). One nymph, BRAZIL, Espírito Santo, Sooretama, Rio São José , 19°07’33.1’’S / 40°14’26.1’’, 23.i.2012, W, Nascimento, J.M.C. leg. ( CZNC) .