Algarobius bottimeri
Kingsolver, 1972
Kiawe Bean Weevil, Bottimer's Texas Bruchid
Algarobius bottimeri is a small seed-feeding in the Chrysomelidae, Bruchinae. Commonly called the kiawe bean weevil or Bottimer's Texas bruchid, it is associated with legume seeds, particularly those of mesquite and related plants in the Prosopis. The has been documented across Central America, North America, and Oceania, likely facilitated by human transport of plant seeds. Like other bruchine beetles, its larvae develop inside seeds.
Pronunciation
How to pronounce Algarobius bottimeri: //ˌæl.ɡəˈroʊ.bi.əs ˌbɒt.ɪˈmɛr.aɪ//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
As a member of Bruchinae, A. bottimeri can be recognized by the 's characteristic compact, oval body form, short that may expose part of the , and with a distinct club. -level identification requires examination of male genitalia and comparison with related Algarobius species, particularly A. prosopis. The specific epithet honors American entomologist Thomas J. Bottimer.
Images
Habitat
Associated with dry, warm environments where legumes (Prosopis and related mesquites) grow. Often found in stored seeds and in field conditions where seed pods are available.
Distribution
Recorded from Central America, North America, and Oceania. The Oceania distribution likely reflects human-mediated introduction via imported Prosopis seeds.
Diet
Larvae feed internally on seeds of leguminous plants, particularly Prosopis (mesquites). may feed on pollen or not feed at all; specific adult diet unconfirmed for this species.
Host Associations
- Prosopis - larval food sourceprimary ; larvae develop inside seeds
Life Cycle
are laid on or near seed pods. Larvae bore into seeds and complete development inside, feeding on cotyledons. occurs within the seed. emerge through round exit holes. Multiple per year possible in favorable conditions.
Ecological Role
As a seed , reduces viability of Prosopis seeds. May influence plant in native ranges and contribute to or seed bank depletion where Prosopis is .
Human Relevance
Considered a pest of stored mesquite seeds and potentially of value as a biocontrol agent against Prosopis . The "kiawe bean weevil" reflects its association with kiawe (Prosopis pallida), an important tree in Hawaii.
Similar Taxa
- Algarobius prosopisCongeneric with similar associations and ; distinguished by genitalic characters and subtle body proportions
- Acanthoscelides obtectusCommon bean weevil with similar seed-feeding ; differs in range (Phaseolus beans) and geographic origin
More Details
Taxonomic Note
Formerly placed in Bruchidae, now treated as Bruchinae within Chrysomelidae based on molecular and morphological evidence.
Etymology
named for Thomas J. Bottimer (1905–1980), entomologist who worked extensively on bruchid beetles of Texas and the southwestern United States.