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Alphitobius diaperinus
''Alphitobius diaperinus'' is a species of beetle in the family Tenebrionidae, the darkling beetles. It is known commonly as the lesser mealworm. 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. It is a vector of many kinds of animal pathogens.
==Description==
The adult lesser mealworm beetle is roughly 6 millimeters long and widely oval in shape. It is shiny black or brown with reddish brown elytra, the color variable among individuals and changing with age. Much of the body surface is dotted with puncture-like impressions. The antennae are paler at the tips and are covered in tiny, yellowish hairs. The elytra have shallow longitudinal grooves.〔Dunford, J. C. and P. E. Kaufman. (Lesser mealworm, ''Alphitobius diaperinus''. ) Entomology and Nematology. University of Florida, IFAS. 2006.〕
The eggs are narrow, whitish or tan, and about 1.5 millimeters long. The larva somewhat resembles other mealworms, such as the common mealworm (''Tenebrio molitor''), but it is smaller, measuring up to 11 millimeters long at its final sub-adult stage. It is tapering and segmented, with three pairs of legs toward the front end. It is whitish when newly emerged from the egg and it darkens to a yellow-brown. It becomes pale when preparing to molt between instar stages. There are 6 to 11 instars.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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