Oecanthus dulcisonans is a species of cricket sparsely but widely distributed in the Mediterranean Basin and in the Middle East.

The species can be found in several Thyrrhenian coastal regions of Italy, as well as in Sardinia and Sicily.

According to some studies, O. dulcisonans sings preferentially from trees while O. pellucens seems to prefer high grass such as the vegetation growing along the small streams.

It can be distinguished from O. pellucens by its bigger size, by the different shape of the sternal plate, and by the male genitalia.

The morphological differences were investigated by Cordero et al. [2] Its namesake song is among the most useful characters to recognize O. dulcisonans form O. pellucens: the strong and melodious trill of the former is continuous, as opposed to the equal, discrete 0.5sec - 1sec trills of O. pellucens.