Mayfly Species Paracloeodes lugoi

Source: Review of continental North and Central American Paracloeodes Day 1955 (Ephemeroptera: Baetidae), including description of a new species from Minnesota, U. S. A.

Diagnosis. Male imago. Unknown. Mature nymph. 1) frons with two convergent keels, fused near clypeus (Fig. 10); 2) labrum with a pair of subapical setae near the middle that are distinguishable from others dorsal setae; 3) one row of five simple setae near distolateral margin of labrum; 4) distal margin of labrum with bifid setae; 5) distolateral margin of labrum with bifid and strong pectinate setae; 6) right mandible incisors cleft; 7) outer incisor of right mandible without vestigial denticle; 8) maxillary palp 1.40 × the length of galea-lacinia; 9) apical half of paraglossa without an abrupt decrease in width (rounded condition) (Figs. 21 and 24); 10) angle between inner margin of labial palp segment III and distal margin of segment II greater than 90 °; 11) lobe of labial palp segment II relatively angulate (Fig. 18); 12) base of labial palp segment III 0.40 × the width of labial palp segment II (Fig. 18); 13) labial palp with length of segment III 0.70 × the width of its base (Fig. 18); 14) hind wing pads absent; 15) anterior surface of forefemur with one row of blunt setae near dorsal margin (Fig. 15); 16) medial row of setae on anterior surface of forefemur absent (Fig. 15); 17) anterior surface of forefemur without row of setae near the ventral margin (Fig. 15); 18) fore tarsal claw 0.60 × the length of the tarsus, with minute denticles (Fig. 15); 19) abdominal color pattern as in Figure 2; 20) length of gills less than 2.0 × the subsequent abdominal segment (Fig. 2).