Wings are small and broad, divergent or slightly upheld. Legs are short and swollen, particularly the posterior pair, with the swelling most pronounced in the tibial and tarsal regions. Males are fertile with approximately 20% wild-type viability. Eye colour: browner than normal. Body colour: dusky.

Body colour:lightly dusky. Eye colour: somewhat brownish. Viability about 20% wild type. Legs short and swollen, particularly posterior pair; swelling most pronounced in tibial and tarsal regions. Wings small and broad, divergent or slightly upheld. RK3.