Larva a small plumosus-type; posterior pair ventral tubules slightly longer. Gular and frontoclypeus pale. Mentum with somewhat rounded teeth; c1 tooth relatively narrow with very short diverging sides, then rounded; c2 teeth moderately separated Type I-II).
Cytology: 4 pairs of relatively short chromosomes with the thummi arm combination AB, CD, EF, G. Arm G short and usually unpaired with a subterminal nucleolus. No nucleolus in longer chromosomes. Arm E often unpaired. Puff with distal dark bands just near the 4 characteristic bands of arm B. Found: Minnesota - Eagle Creek, Eagle Bend, Todd Co.