The development of different approaches to use agricultural residues as a source of high value-added products, become a must, especially after the problems emerged due to their accumulation. This contribution demonstrates the potential of agricultural residues, Linuim usitatissium (flax seed) and Nigella sativa (black seed) peels, as raw materials for the production of bioactive products, botanical insecticides, against Cx. pipiens , with deep analysis to their chemical constituents by gas chromatography-mass spectrometry, the larvicidal efficacies of the three crude extracts (methylene chloride, petroleum ether and methanol 70%) from the two plant waste peels were evaluated for the first time against the late third instar larvae of Cx. pipiens . Results indicated different lethal doses in larvae depending on the efficacy of organic solvent used. For both compounds methanol 70% extracts produced the highest dry yield. The most efficient solvent is petroleum ether in case of both flax and Black seed peels. Petroleum ether extract exhibited the highest toxicity against Cx. pipiens with an LC50 of 69.6383 ppm. The same results for black seed indicated that petroleum ether was the most efficient against Cx. pipiens with an LC50 of 40.7748 ppm. The study revealed for the first time the type of phytochemical constituents presents in peels of flax and black seeds using GC–MS analysis which revealed twenty-eight constituents among extracts of flax and black seed peels ranging from to 58.8711% to 99.99% of the total extracts. GC–MS profiling showed that a five constituents, 9-2-Methyl-Z, Z-3, 13 octadecadienol (terpenoid), 9,17-Octadecadienal, (Z)-, Nonanoic acid, 9-oxo-, methyl ester, 9,12-Octadecadienoic acid Z,Z and Octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl- have insecticidal activity beside many other biological activities as recorded from a variety of botanical extracts. While the constituents like Hexadecanoic acid, methyl ester and cis -9-Hexadecenal, both of them are larvicidal, cis -Vaccenic acid and 9-Oxononanoic acid showing only an insecticidal activity beside Undecanoic acid the mosquito repellent. The other six constituents Linoelaidic acid, Oleic Acid, Z-2-Octadecen-1-ol, 1-Methoxy-3-hydroxymethylheptane, Cis-11,14–Eicosadieonic acid-methyl ester and Heptasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13-tetradecamethyl- are constituents of other plant extracts which showed as a whole an insecticidal activity.

Survey of the insect pests and their natural enemies associated with faba bean was conducted at El-Kharga Oasis, New Valley Governorate (Egypt) during the months of mid-October to April of 2015 and 2017. In total 15614 insects belonging to 7 orders and 16 families were collected and identified. The most abundant orders were Hymenoptera (7 families) and followed by Hemiptera (3 families). The most common pest species were cowpea aphid, Aphis carccivora Koch, leafhoppers, Empoasca sp., and black cutworm, Agrotis ipsilon (Huf.) Beneficial insects collected included several predatory families (Coccinelidae, Chrysopidae and Sphecidae) but only low numbers of parasitoids (Pteromalidae) and pollinators (Apidae and Halictidae). The results of this study represent an important baseline data for the design and implementation of strategies for faba bean protection in Egypt.

The family Tabanidae is one of the important families of superfamily Tabanoidea, having medical and veterinary importance. In Egypt, there is no strict cladistic approach on tabanid flies phylogeny yet. The 20 available Egyptian tabanids under 2 subfamilies are analyzed cladistically. Cladistic analysis is based on 91 morphological characters depending on Single linkage, UPGMA, Complete linkage clustering methods (Cophenetic correlation value). This produces a well-resolved and firmly supported phylogenetic hypothesis on the generic relationships. Based on our phylogenetic results, the revised classification of examined taxa is consistent with the conventional classification.

The Egyptian fauna of the genus Tabanus Linnaeus is reviewed. Only seventeen species are recognized instead of the previous 21. This is because six species have been removed as doubtful records, and an additional two species have been added (T. leucostomus Loew, 1858 (new record) and T. arenivagus Austen, 1920). A key to Egyptian species of Tabanus is included together with illustrations. Specimens examined and distributions are given for each species. The status of the six species doubtful to occur in Egypt is discussed.

Museums are the main sources of cultural, political, economic, scientific and historic information in the communities. Pests in a museum, library or archive environment can cause serious damage to highly valuable and irreplaceable materials. A survey was conducted in the Manuscripts Library of the Coptic Museum (Egypt) to determine the biodiversity of insect pests infest the place. Sampling were done monthly for a year (from October 2018 to September 2019) using sticky traps with a nontoxic sticky substance. The sticky traps were placed at the corners of the library, behind doors and on the windows edges. A total of 1047 specimens belonging to nine species under six families and five orders were collected and identified. The most abundant species was Monomorium pharaonic with a total of 639 collected specimens followed by Ochetellus glaber , Thermobia domestica , Gibbium psylloides , Anthrenus verbasci , Periplaneta Americana , Lasioderma serricorne , Liposcelis bostrychophila , Attagenus fasciatus with total number of 193, 62, 45, 39, 23, 21, 13, 12 collected specimens, respectively. The traps which sited in the corners of the library trapped 60% of the total recorded specimens.