Most physical descriptions on Troutnut are direct or slightly edited quotes from the original scientific sources describing or updating the species, although there may be errors in copying them to this website. Such descriptions aren't always definitive, because species often turn out to be more variable than the original describers observed. In some cases, only a single specimen was described! However, they are useful starting points.
A rather pale reddish brown species.
Head reddish brown; median carina and bases of antennae yellow. An oblique black line on each side of the face. Thorax reddish; mesonotum bright reddish brown. Mid-dorsal line of prothorax black; posterior margin white. Sternum and pleural sutures yellow with reddish brown marginings. Legs pale yellowish white; femora tinged with yellow. Wings hyaline. Longitudinal veins of the costal border yellowish; all others pale, except at extreme base, which are yellow. Stigmatic cross veins simple, curved, a few forked near the costal margin.
Segment 1 of abdomen largely opaque; 2-7 semi-hyaline; pale yellowish brown with smoky markings. Tergites 6 and 7, and segments 8-10, opaque reddish brown. Posterior margins of all segments smoky brown, this band darkest in the postero-lateral angles. Two oblique streaks on each side of each tergite, from the antero-lateral and postero-lateral angles. Mid-dorsal line pale, bordered by purplish submedian streaks. A dark line on the pleural fold.
Genitalia golden brown; tips of penes purplish brown. Forceps widened gradually toward the base. Penes separated by a rounded notch, into which projects a short blunt process from each division of the penes. Reflexed spur widest at base, its tip acute (see fig. 134). Tails pale smoky, darker at base.