No abstract

Nephus incisus has previously been considered to be a species endemic to the Canary Islands. In this note we present data indicating that its range is wider. The newly recorded sites are in northern Algeria, south of mainland Spain and Cape Verde.

Coniopteryx (Metaconiopteryx) tjederi Kimmins, 1934, new species for the Algerian fauna (Neuroptera, Coniopterygidae). Coniopteryx (Metaconiopteryx) tjederi Kimmins, 1934, has been collected during a bioecological study of citrus entomofauna. This is the first mention of this species for Algeria.

Tribolium confusum is a pest of stored produce on many cereals. This study was planned to see quantitative losses and feelings of the equipped grains owed to the infestation by the red genus Tribolium on 2 forms of native durum in Algeria. Selection Puts tire chains S am cultivated within the region of Adrar, underneath associate arid climate; and also the existent selection Vitron of a production of the region of Ain Témounchent underneath a dry Mediterranean climate. Study was accomplished during two months to determine the weight loss of grains, damage caused by T. confusum and the influence of two varieties of hard wheat on growth and reproduction of this vandal. Damage of the couples (5, 10, 15, 20) on grains showed significant difference. A similar tendency was noted for the weight loss of grains Put snow chains S; while Vitron noticed not significant losses. Also, an increase in the consumption of proteins, lipids and starch of grains was noticed with the increase of the length of stocking. The appearance of generations was variable according to the level of density and the variety; nevertheless, it was generally highest on Vitron and low on Chain S. The results show that the quantitative and qualitative losses of stored grains are linked to the storage time, the chemical composition of the grains and the susceptibility to insects of the stored products. These results can be integrated into food safety management to ensure the quality of stored wheat and their stored food derivatives.

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