Square Necked Grain Beetle
Cathartus quadricollins. Adults are about 2 mm long, and the oval body is shiny, reddish brown, and somewhat flattened.
This grain beetle is native to American continent, is noted as a pest of corn both in field and silo.
This species is similar in appearance to the sawthoothed grain beetle, Oryzaephilus surinamenis, but lacks the six projections on the lateral margins.
Cathartus quadricollins often common in United States. It is also common in the humid parts of West Africa.
This beetle is chiefly abundant in the South of United States, where it is found in great numbers outdoors infecting the seed pods of a great variety of plants.
The larvae have a bad habit of devouring the germ of the seed in which they breed.
Laval development at 80% RH is 24-26 days at 25 degree C and 20 days or less at 30 degree C.
This species is cosmopolitan and has been found in wheat, rolled barley, rice, dried fruits, cocoa, tobacco, and oil palms.
Square Necked Grain Beetle
Cathartus quadricollins. Adults are about 2 mm long, and the oval body is shiny, reddish brown, and somewhat flattened.
This grain beetle is native to American continent, is noted as a pest of corn both in field and silo.
This species is similar in appearance to the sawthoothed grain beetle, Oryzaephilus surinamenis, but lacks the six projections on the lateral margins.
Cathartus quadricollins often common in United States. It is also common in the humid parts of West Africa.
This beetle is chiefly abundant in the South of United States, where it is found in great numbers outdoors infecting the seed pods of a great variety of plants.
The larvae have a bad habit of devouring the germ of the seed in which they breed.
Laval development at 80% RH is 24-26 days at 25 degree C and 20 days or less at 30 degree C.
This species is cosmopolitan and has been found in wheat, rolled barley, rice, dried fruits, cocoa, tobacco, and oil palms.
Square Necked Grain Beetle
