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The sole species, Rhyzopertha dominica, is known commonly as the lesser grain borer, American wheat weevil, Australian wheat weevil, and stored grain borer. [3] It is a beetle commonly found within store bought products and pest of stored cereal grains located worldwide. [4] It is also a major pest of peanuts.
Prostephanus truncatus is commonly referred to as larger grain borer (LGB) with reference to the related Rhyzopertha dominica, which is relatively smaller, and referred to as the lesser grain borer. P. truncatus is about 6 mm (0.24 in) long as compared to 3 mm (0.12 in) long in R. dominica.
Rhyzopertha dominica (Fabricius) - lesser grain borer; Sinoxylon anale (Lesne) Xylion cylindricus Macleay; Xylobosca bispinosa (Macleay) Xylodeleis obsipa Germar; Xylopsocus gibbicollis (Macleay) Xylothrips religiosus (Boisduval) Xylotillus lindi (Blackburn) Species found in the United Kingdom. Bostrichus capucinus; Bostrychoplites cornutus ...
The lesser grain borer has a dark coloured cylindrical structure with the head concealed. [4] When lesser grain borer eggs are laid, they are laid outside the grain, however they mature inside the shell of the seed which can take up to 6 weeks if the temperature is cooler, with the adult borers not living for longer than two months.
Elasmopalpus lignosellus, the lesser cornstalk borer, was described by Philipp Christoph Zeller in 1848. [1] It is found from the southern United States to Mexico, Central America and South America (Colombia, Venezuela, Brazil, Peru, Argentina and Chile).
The beetles that are most likely to infest stored grains are Sitophilus zeamais (maize weevil), Rhyzopertha dominica (lesser grain borer), and Prostephanus truncatus (larger grain borer). Studies suggest that the maize weevil is able to detect the scent of methyl salicylate and tends to avoid it.
Historically, Liposcelis bostrychophila has been considered a minor pest of stored commodities, perhaps because the small size of the insect made them seem insignificant in comparison with more noticeable pests such as the rice weevil (Sitophilus oryzae), the maize weevil (Sitophilus zeamais), and the lesser grain borer (Rhyzopertha dominica ...
It is known commonly as the lesser mealworm and the litter beetle. It has a cosmopolitan distribution , occurring nearly worldwide. It is known widely as a pest insect of stored food grain products such as flour , and of poultry-rearing facilities and it is a vector of many kinds of animal pathogens .