Bombycoidea

Definition

A superfamily of moths (order Lepidoptera) comprising approximately ten families, including the giant silk moths (Saturniidae), sphinx or hawk moths (Sphingidae), true silkworm moths (Bombycidae), and relatives such as the lappet moths and emperor moths. Members are typically medium to large in size, often with robust bodies, reduced mouthparts in adults, and larvae that frequently possess conspicuous tubercles or horns. Bombycoidea represents a major lineage within the ditrysian subsection Bombycina and is closely allied with the superfamily Lasiocampoidea.

Etymology

From Latin Bombyx (silkworm) + -oidea (resembling), referring to the silkworm moths that typify the group.

Example

The domesticated silkmoth Bombyx mori (family Bombycidae) and the luna moth Actias luna (family Saturniidae) both belong to Bombycoidea, though the former has lost its flight ability through millennia of cultivation while the latter retains the strong, broad-winged flight characteristic of many bombycoid moths.

Related Terms

• Saturniidae
• Sphingidae
• Bombycidae
• Lasiocampoidea
• Ditrysia
• Bombycina
• Lepidoptera

Usage Notes

The circumscription of Bombycoidea has shifted historically; Lasiocampoidea was sometimes merged into this group. Current classifications recognize ten constituent families, though phylogenetic studies continue to refine relationships among the bombycoid lineages. The superfamily is distinguished from Noctuoidea and other macrolepidopteran groups by larval and adult morphological characters, though definitive field identification to superfamily level often requires examination of wing venation, tympanal organ structure, or genitalia.