...in the buckeye butterfly, Juonia coenia , a lepidoptera, and in the flour beetle, Tribolium castaneum , a coleoptera (Figure 4 ; Galant et al. 1998 ). Duplication, in this case, probably has occurred after the divergence of diptera from other insects. Phylogenetic Relationships of bHLH
Families: A Reappraisal...