Stenocephalidae

Definition

A family of true bugs (Hemiptera) characterized by a single recognized genus, Dicranocephalus, comprising approximately 30 described species. Members of this family are typically associated with host plants in the family Boraginaceae and related families, with adults and nymphs feeding on seeds. The family is distinguished morphologically by an elongated head capsule and specific wing venation patterns typical of certain lygaeoid lineages.

Etymology

From Greek stenos (narrow) + kephale (head) + -idae (family suffix), referring to the narrow, elongated head capsule characteristic of members.

Example

Dicranocephalus agilis, a species in Stenocephalidae, is found on borage (Borago officinalis) and related Boraginaceae, where nymphs and adults feed on developing seeds.

Related Terms

• Dicranocephalus
• Hemiptera
• Lygaeidae
• Boraginaceae
• seed bug
• Heteroptera

Usage Notes

Stenocephalidae is a small, monogeneric family whose taxonomic placement within the Lygaeoidea has been revised in recent phylogenetic studies; some classifications have treated it as a subfamily of Lygaeidae, but current treatments generally recognize it at family rank. The family is primarily Palearctic in distribution. When encountering specimens, the combination of an elongate head and association with Boraginaceae hosts is diagnostic.