Cladotanytarsus muricatus Bilyj

Cladotanytarsus muricatus Bilyj, 1989: Bilyj & Davies 1989: 956 (adult male and female, pupa; Canada, Ontario).

Material examined. Adult male specimen dissected and mounted under 6 cover slips, labelled as follows: Can. Nat. Coll., Type No. 19724, Cladotanytarsus muricatus B. Bilyj, Ƌ PARATYPE, Slide No. 1, E.L.A. 70 km ESE Kenora, On, Lake 223 no. X1025.A3, 30.VI.-1.VII.1976 (leg. I. Davies). Deposit in CNC.

Remarks. The examined specimen shows an anal point with a strong spine-like elongation, similar to that shown in figure 7 by Bilyj and Davies (1989) but slightly longer. Adult males of this species are also distinct in the shape of the superior volsella, narrowed in distal half, and the median volsella with a few weak lamellae placed distally on a long stem. Due to the latter character, the species falls into the couplet 13 of the present key (see below).