Mayfly Species Neoleptophlebia adoptiva (Blue Quills)

This is a blackish species with a brown abdomen that is only a little paler in the middle. Top of head and thorax shining black, only the sutures on the sides paler; dorsum of the first abdominal segment also blackish. Legs brown including the tarsi, paler brown beyond the knees. Wings sub-hyaline with brown veins and darker brown wing roots. Costal cross veins faint and rather numerous; those of the stigmatic region long, sinuate and crowded, but little conjoined. The abdomen is nearly uniform brown, only the base of segments 3-5 showing a suggestion of pale rings; and the apical segments are only a little darker on the dorsum. Forceps yellowish brown; the 2nd joint twice as large as the 3rd. Penes appressed, half as long as the first joint of the forceps. The sperm ducts terminate before the apex between a rounded inner lobe and an outer triangular tooth that is turned sharply laterally; below this the outer margin of the penis is suddenly widened and the basal portion parallel-sided (see fig. 135). Tails uniform pale brown.