Heterozygotes are semi-Dpy and segregate semi-Dpy, Vul, early larval lethals and dead eggs. Maintain by picking semi-Dpy. This strain was generated by the Genetic Toolkit project, which should be acknowledged in any publications resulting from its use: The Genetic Toolkit is funded by the NIH National Center for Research Resources (NCRR) (USA) to Ann M. Rose, David L. Baillie, and Donald L. Riddle. Report all experimental results to Don Riddle.