الفهرس | Only 14 pages are availabe for public view |
Abstract Using a Robinson light-trap, a survey and population studies of Coleopterous and Lepidopterous insects, during two successive years 1984 - 1986, at AI-Arish city North Sinai were carried out. The results revealed the presence of 149 Coleopterous species belonging to 108 genera within 30 families and 132 Lepidopterous species within 102 genera of 16 families, they were alphabetically listed in the text. Of these species 97 Coleopterous and 95 Lepidopterous species were recorded for the first time in this area. The relative atundance and fluctuation of population of all Coleopterous and Lepidopterous families were prese- nted and explained. It was noticed that beetles were most acti ve from May to JI.ugust, while moths were more abundant during spring and st~ar. Beetles and moths were in their minimum population (luring winter period (December-January). Scarabid and staphylinid beetles and noctuid and pyralid moths were the most abundant families, both in number of species and the number of individuals. Also, the popuJ.ation dynamics, approximate number of annual generations nnd the effect of some weather factors on the flight activlty of some Lepidopterous and Coleopter- ous species of econ()mic importance were studied in detailed. |