Larva a plumosus-type larva, although ventral tubule length and shape could not be determined. Posterior of gular region and the frontoclypeus darkened. Centre tooth of mentum relatively wide with well separated c2 teeth (type II); 4th laterals not visibly reduced (type I). 3rd inner tooth of mandible clearly demarcated (type III).
Cytology: 4 pairs of relatively short chromosomes with the thummi arm combination AB, CD, EF, G. Arm G partly unpaired with a subterminal nucleolus; only about a dozen visible bands. Nucleolus in arm B and possibly a smaller one in arm F. Polymorphic in arm B.
Arm A1: 1 - 2c, 10 - 12, 3 - 2d, 9 - 4, 13 - 19
i.e. as in holomelas, cucini, tardus, major, etc.
Arm B1: differs from longistylus by a distal inversion.
Arm C1: 1 - 6b, 11c - 8, 15 - 11d, 6gh, 17a - 16, 7d -
6c, 17b - 22 as aberratus,
pilicornis, etc.
Arm D1: proximally similar to longistylus
Arm E1: 1 - 3e, 5 - 10b, 4 - 3f, 10 - 13
i.e as in cingulatus and tardus.
Arm F1: 1 - 23
i.e. Standard as in
piger.
Click here for the polytene chromosomes
Found: California - Spring Valley Lake, nr. Hesperia, Apple Valley, San Bernadino Co.
High altitude lake.
Cytology described as 'C. species Apple Valley' by Wülker (1980) some information on
Arm F given in Fig. 3 of Martin
(1979) and a photo of arm C with an incorrect sequence given in
Devai et al. (1989). Was Species 24
of Wülker.
The adult associated with this larva is not known.