Lubber grasshopper

Definition

Any of several large, heavy-bodied, flightless grasshoppers in the family Romaleidae (subfamily Romaleinae), characterized by bright aposematic coloration, sluggish movement, and chemical defenses that advertise their unpalatability to predators. The common name derives from 'lobber,' an archaic term for a clumsy or sluggish person, reflecting their slow, walking locomotion and inability to fly. Lubber grasshoppers are classic examples of Müllerian mimicry and chemical defense in orthopterans, sequestering toxic compounds from host plants or synthesizing noxious secretions.

Etymology

From Middle English 'lobre' or 'lobber,' meaning a clumsy, heavy, or slow-moving person; applied to these grasshoppers due to their ponderous, ground-dwelling habits and inability to leap or fly effectively

Example

The plains lubber grasshopper (Brachystola magna) ranges across the southwestern United States and northern Mexico, reaching lengths over 5 cm; its vivid black-and-yellow patterning warns vertebrate predators of its defensive regurgitations and noxious froth.

Synonyms

• lobber grasshopper
• Romaleid grasshopper

Related Terms

• Romaleidae
• aposematic coloration
• chemical defense
• Müllerian mimicry
• Brachystola
• Taeniopoda
• flightlessness
• Orthoptera

Usage Notes

In North American entomological usage, 'lubber' most often refers specifically to Romaleinae, though the term occasionally appears more broadly for any large, slow grasshopper. Contrast with 'locust' (migratory, highly mobile acridids) and typical Acrididae (slender, jumping, flying grasshoppers). The eastern lubber grasshopper (Romalea microptera, formerly R. guttata) of the southeastern United States is the most frequently encountered species in educational and pest-management contexts. Not to be confused with 'lobster,' despite similar etymological roots.