Tessaratomidae

Definition

A family of large true bugs (Hemiptera) comprising approximately 240 species in 56 genera and three subfamilies (Natalicolinae, Oncomerinae, Tessaratominae). Members are typically robust, often exceeding 20 mm in length, and are commonly known as giant shield bugs or sometimes as lychee stink bugs in reference to economically significant species. The family is distinguished within the Pentatomoidea superfamily by features including a large triangular scutellum and particular arrangements of abdominal trichobothria.

Etymology

From the genus Tessaratoma (Greek tessares 'four' + aratos 'sewn, joined' + toma 'mouth, cutting') + -idae family suffix

Example

Tessaratoma papillosa (lychee giant stink bug), a pest of litchi and longan orchards in Asia, exemplifies the family's tendency toward large body size and agricultural significance.

Related Terms

• Hemiptera
• Pentatomoidea
• Pentatomidae
• Dinidoridae
• scutellum
• trichobothria
• true bugs
• Shield bugs

Usage Notes

Tessaratomidae is treated as plural when referring to the family as a collective group ('the Tessaratomidae are distributed primarily in tropical regions'), though the family name itself is technically singular. The family is sometimes confused with the more speciose Pentatomidae (stink bugs); Tessaratomidae are generally larger and less diverse. The three subfamilies show distinct biogeographic patterns: Natalicolinae in Africa, Oncomerinae in Australia and the Pacific, and Tessaratominae across tropical Asia.