ملاحظات أولية عن بعض المفترسات الحشرية و الحيوانية على البرسيم الحجازي Medieago sativa L. بمنطقة الجديدة-طرابلس-ليبيا

الملخص EN

Population of predaceous insects and spiders were studied in alfalfa fields at Jedieda region, Tripoli.

Results showed that the total number of individual insects collected from March until the end of October 1987 was 8913 belonging to seven families and 6 orders; Chrysopidae (Chry-sopa vulgaris L.) 37.03 % for adults and 2.06 % for larvae, the Coccinellidae (Coccinella septumpunctata L.

Coccinella novemnotata H., C.

undecimpunctata L.

and C.

tredecim-punctata L.) 26.5 % for adults and 1.17 % for larvae, the Syrphidae (Syrphus corollae F.) 17.26 %, Nabidae (Nabis ferns L.) 7.74 %; Asilidae (Tripolitanus kruger) 2.85 .

Libeliuiidae 0.24 % and the crabspidcrs Thomisidae 5.15 r’<.