Callosobruchus

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Coleopterida
Ordo: Coleoptera
Subordo: Polyphaga
Infraordo: Cucujiformia
Cladus: Phytophaga
Superfamilia: Chrysomeloidea

Familia: Chrysomelidae
Subfamilia: Bruchinae
Tribus: Bruchini
Subtribus: Bruchidiina
Genus: Callosobruchus
Species: C. aethiopicus – C. analis – C. anjaliae – C. antennifer – C. bhutanicus – C. cherenensis – C. chinensis – C. dolichosi – C. gibbicollis – C. imitator – C. latealbus – C. latitarsis – C. maculatus – C. montanus – C. multinigrus – C. nigripennis – C. nigritus – C. phaseoli – C. rhodesianus
Name

Callosobruchus Pic, 1902
References

Anton, K.-W. 2000. Five new species of the Callosobruchus chinensis group from the Oriental Region and Australia (Coleoptera: Bruchidae: Bruchinae). Genus 11(1): 13–28. PDF.

Links

Callosobruchus Taxon details on Fauna Europaea
Atlas of seed beetles (Bruchidae) of Russia and adjacent countries

Callosobruchus is a genus of beetles in the family Chrysomelidae, the leaf beetles. It is in the subfamily Bruchinae, the bean weevils.[1] Many beetles in the genus are well known as economically important pests that infest stored foodstuffs.[1]

Biology

These beetles specialize on legumes of the tribe Phaseoleae, which includes many types of beans used for food. Host plants include mung bean (Vigna radiata), adzuki bean (V. angularis), rice bean (V. umbellata), cowpea (Vigna unguiculata), Bambara groundnut (V. subterranea), pigeon pea (Cajanus cajan), lablab (Lablab purpureus), and common bean (Phaseolus vulgaris).[1] They can also be found in peas, lentils, chickpeas, and peanuts.[2]

Most species in the genus are native to Asia. They can be found in warm regions in the Old World. They occur in places outside of their native range as introduced species. At least 11 species of legumes are natural hosts for these beetles, including wild and domesticated plants. Some are considered pests because they invade stores of legume foods, such as beans and lentils. They lay eggs on the seeds and the larvae consume them as they develop. They emerge from the seeds as adults.[2] C. maculatus in particular is well adapted to living in dry beans and seeds because it does not require food or water to reproduce. It can invade a store of chickpeas and infest 100% of the seeds.[3]

C. maculatus has also been studied in the field of reproductive biology because of the sexual conflict that occurs between mating male and female. The genitalia of the male is covered in hard spines that injure the female during copulation, and the female has a habit of kicking the male during the process.[4]
Species

There are at least 20 species in genus Callosobruchus.[2]

Species include:[1]

Callosobruchus analis
Callosobruchus chinensis
Callosobruchus dolichosi
Callosobruchus imitator
Callosobruchus latealbus
Callosobruchus maculatus
Callosobruchus nigripennis
Callosobruchus phaseoli
Callosobruchus pulcher
Callosobruchus rhodesianus
Callosobruchus semigriseus
Callosobruchus subinnotatus
Callosobruchus theobromae
Callosobruchus utidai

References

Tuda, M., et al. (2006). Evolutionary diversification of the bean beetle genus Callosobruchus (Coleoptera: Bruchidae): traits associated with stored‐product pest status. Molecular Ecology 15(12), 3541-51.
Tuda, M., et al. (2005). Ecological factors associated with pest status in Callosobruchus (Coleoptera: Bruchidae): high host specificity of non-pests to Cajaninae (Fabaceae). Journal of Stored Products Research 41, 31-45.
Erler, F., et al. (2009). Preliminary results on evaluation of chickpea, Cicer arietinum, genotypes for resistance to the pulse beetle, Callosobruchus maculatus. Journal of Insect Science 9(1), 58.
Crudgington, H. S. and Siva-Jothy, M. T. Genital damage, kicking and early death. Archived 2016-03-04 at the Wayback Machine Nature 407; 19 October 2000.