The Egyptian fauna of the genus Nemotelus Geoffroy was revised. We recognize 9 species (compared to 5 species recognized about 40 years ago). As a result of this revision N. matrouhensis sp. nov. is described as new. N. anchora Loew, 1846; N. candidus Becker, 1906 and N. oasis Becker, 1906 are newly recorded from the Egyptian fauna. The female of N. albifacies Becker, 1902 is described for the first time and both sexes of N. niloticus Olivier, 1811 are redescribed and illustrated for the first time. N. punctiventris Becker, 1902 is removed from synonymy with N.

In this study, numerical phenetic method and RAPD-PCR technique were carried out on the species Coccinella undecimpunctata L. and its 13 aberrations which were collected from 10 localities in Egypt. The morphometric analysis and phenotypic features were determined for the aberrations to reveal the phenetic relationships among them. The resulted phenogram showed high degree of variations and affinities (Similarity coeffeciant ranged from 44.7 to 85.7%). RAPD fingerprint profiles were generated by using 5 random primers on genomic DNA to evaluate their phenetic relationships and to investigate the molecular markers among the aberrations genotypes. The similarity coefficient of the produced DNA fragments ranged from 40% to 93.75%. Cluster analysis based on both morphometric and RAPD data showed that the 14 morphs are grouped into 9 clusters against 8 clusters respectively. In addition, PCA plot allowed differentiating three groups from morphometric data against four groups from RAPD data.

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.

An unusual new genus (Salwaea burgensis gen. n., sp. n.) of phycine stiletto flies is described from Egypt. A key to Palaearctic genera of Phycinae is presented.

The Egyptian fauna of the genus Ruppellia Wiedemann, 1830 is revised based on new material from Egypt, Israel, Oman, Tunisia, United Arab Emirates (UAE) and Yemen and on reexamination of the types in Egyptian collections. We recognize two distinct species: Ruppellia semiflava Wiedemann, 1830 and Ruppellia thoracica (Macquart, 1840). Ruppellia pallida Kröber, 1929 and Ruppellia apicalis Kröber, 1929 (new name = subapicalis Lyneborg, 1983) are synonymized with R. semiflava based on examination of the female type specimen of the former and the male type specimen of the latter species. Also, Thereva nuda Loew, 1856 is removed from synonymy with R. semiflava and placed as a new synonym to R. thoracica. Cataclinoneurum alexandrinum (Becker, 1912) is confirmed as a synonym to R. thoracica after we obtained pictures of the types. Ruppellia semiflava is recorded in Oman, UAE and Yemen for the first time. Ruppellia is redefined based on the number of dorsocentral setae. Illustrations, key, specimens examined and distributions are given for each species, along with color images of type specimens.