[Prodiplosis] citrulli. USA (Arizona). Citrullus sp., Cucumis sp.; Cucurbita spp. (Cucurbitaceae).
Itonida citrulli Felt 1935e: 79. USA: Arizona, Tucson; LT, des. Gagné 1973c: 879; ♂; USNM.

I. citrulli, an Arizona species that is not yet known from California, is regarded as an important localized pest of watermelon. The larvae infest the tips of the vines causing them to curl and die.

Curled leaf buds and rolled leaves...Prodiplosis citrulli (Felt)

[notes also that Contarinia setigera (Lintner) and Aphidoletes aphidimyza, two midges reared by Lintner (1897) from melon tips were probably not the gall inducers in that instance.]

Larvae are white, gregarious, and develop rapidly....

Hosts: cultivated Citrullus, Cucumis, and Cucurbita...