Larva a thummi-type, ventral tubules relatively long. Dark gular region (and frontoclypeus?). No ther information available.
Cytology
: 4 pairs relatively short chromosomes with the thummi arm combination AB, CD, EF, G.
Arm G with large subterminal nucleolus
nucleolus also in arm C in region 15-11; homologues often partially unpaired. Polymorphism in arm D.
Arm A1: 1 - 2c, 10 - 12, 13 - 14e. 4a - 9 2d - 3i, 14f - 19 (unclear dividing region 14)
Arm C1: 1 - 6b, 11c - 8a, 15e - 11d, 6gh, 17a - 16a, 7d-e, 6f-c, 17b - 22
Arm E1: 1 - 3e, 10b - 3f, 10c - 13 as pluE1, halophilus, etc.
Arm F1: 1a-I, 15a - 17d, 10d - 2a, 14a - 11a, 18a - 23
Found: Manitoba - Churchill (T. Ekrem)
Alaska - Potters Marsh, Anchorage Co.
Preliminary banding patterns from Kiknadze.