Codons that are used more frequently than expected (RSCU >1) among the dipteran and hymenopteran insects.

The number of species (out of 15 Diptera and 7 Hymenoptera) in which the codon is frequently used (RSCU >1) is shown. Also shown are Chi square significance levels for the number of species where the codon is frequently used (RSCU >1) compared to the number of species where the same codon is rarely used (RSCU <1) between the two species groups.