Rearing method of Oryzaephilus surinamensis (L.) (Coleoptera, Silvanidae) on various wheat granulometry 503 Revista Brasileira de Entomologia 51(4): 501-505, dezembro 2007 Considering all treatments, the number of larvae was higher than the number of adults emerged, what can be justified by Common Name: Grain beetle Scientific Name: Oryzaephilus surinamensis Linnaeus Order: Coleoptera Description: The adult beetle is a small (1/10 inch long), very flattened and brown with the segment just behind the head (pronotum) having characteristic “sawtoothed” outer margins, bearing six “teeth” on each side. This insect prefers milled cereal products.

Oryzaephilus surinamensis are about 1/10 inch long, slender, flattened, and brownish-red to almost black. 11th International Working Conference on Stored Product Protection 128 Biology of the sawtoothed grain beetle, Oryzaephilus surinamensis (Linnaeus) on different stored products and its host associated genetic variability Govindaraj, R.*#1, Mohankumar, S.2, Rajasekaran, B.1, Mohan, S.1 1Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore - 641 003, Tamilnadu, India The sawtoothed grain beetle, Oryzaephilus surinamensis (L.), is an important pest of packaged consumer foods, yet little is known of its behavioral response to food odors. More Information. They are commonly found throughout Missouri. Newly hatched larvae of Oryzaephilus surinamensis (L.) developed quickest on untreated flour plus 3% of wheat germ, but survived best on commercial vitamin-enriched flour. There can be several generations per year. The body is about 3mm in length and it … Larvae are cream-colored, slender, and about 1/8 inch long. Antennal segments nine and ten are distinctly transverse. Scientific Name: Oryzaephilus surinamensis Sawtoothed grain beetles are a species of stored product pest. Larva mempunyai bagian kepala yang jelas dan menarik perhatian.

Abstract. In warm, humid conditions, the entire life cycle, from egg to mature adult, takes about two months.

Males lack the toothed hind femora and tuberculate clypeus seen in O. surinamensis. Telur oryzaephilus surinamensis diletakkan satu per satu atau dalam suatu kelompok pada biji-bijian komoditi atau pada celah atau retakan. Compared with O. surinamensis, O. mercator (Fauvel, 1899) is on average smaller, 2.5-3.0mm, the eyes are larger and the temples, about a quarter of the diameter of the eyes in length, are sharply pointed.

Larva Oryzaephilus surinamensis. When the larvae are ready to change to adult beetles, they make a cocoon from food particles. These pests feed on and destroy dry goods, grains, and cereals and can infest both homes and commercial facilities alike. Larva berukuran sampai 2.5 mm, berwarna putih sampai kuning pucat dengan bulu-bulu kasar. Sawtoothed grain beetle (Oryzaephilus surinamensis) The sawtoothed grain beetle is the second most common insect pest that infests kitchens and pantries in Michigan (the Indian meal moth is the most common). They developed as quickly on a synthetic casein diet containing 1.25 γ of biotin per gram as on vitamin-enriched flour, and survived as well on the synthetic casein diet as on untreated flour plus 3% of wheat germ. Adult sawtoothed grain beetles are slender insects about 1/8 inches long.

The sawtoothed grain beetle’s scientific name is Oryzaephilus surinamensis (L.).

Saw-toothed Grain Beetle, Oryzaephilus Surinamensis The Saw-Toothed Grain Beetle larvae feeds on and infests broken kernels from food such as rice, cereals, seeds, nuts and spices and can get into small cracks and crevices with its flat body.

They are found in many different food items, including dried fruit, cereals, nuts, dried meat, macaroni and seeds. They are identified by the saw-like teeth on each side of the thorax.