Hieroglyphic Moth

Diphthera festiva (Fabricius, 1775) belongs to Nolidae, within Diphtherinae. Molecular and morphological analyses placed this lineage alongside the remaining nolid subfamilies. [2][3]

Adults span approximately 37–48 mm. Metallic bluish-grey lines cross lemon-yellow forewings, with three rows of dots near the outer margin. The thorax is similarly yellow and patterned; the abdomen is black and the hindwings dark grey with pale fringes. [1]

The range includes tropical and subtropical parts of the Americas and the Caribbean. In the United States the principal distribution runs from South Carolina to Texas along the Gulf region, with occasional more northerly strays. [1]

Females lay clusters of rounded white eggs. Larvae form a cocoon of silk and plant debris before pupation. [4]

Recorded larval hosts include Melochia, Waltheria, Lespedeza, soybean and several other plant genera. [1]

Young larvae scrape leaf surfaces; later instars consume the blades, leaving veins exposed. In Guanacaste, Costa Rica, dense groups can rapidly defoliate host plants. [4]

Caterpillars are cream with black dorsal bands, an orange-red head and anal plate, and a black lateral stripe. The dorsal bands end at this stripe. [1]

Older names include Diphthera elegans and Noropsis fastuosa. The modern placement in Nolidae followed the 2013 phylogenetic treatment of Diphtherinae. [2][3]

Keep the enclosure closed and display it in indirect light, away from heat and damp conditions. Handle the frame by its edges and clean only its exterior according to the maker’s instructions.