author(s)
Nassima Serradj, Fatiha Bendali-Saoudi and Noureddine Soltani

abstract
The present study is an update of fauna biodiversity of the Lake of Birds (El Taref Algeria Wilaya). The study was conducted in five selected stations at the level of the shore of the lake. Our sampling reported 3 685 individuals harvested. According to the decreasing order of their abundance, we have the Crustacea class: the Cladocera (Daphnia magna, Simocephalus vetulus and Simocephalus expinosus). Invertebrates are represented by five taxa. Three families of Coleoptera: Noteridae (Hydrocanthus iricolor); Dytiscidae (Dytiscus semisulcatus, Dytiscus circumflexue, Dytiscus marginalis, Dytiscus dimidiates, Agabus brunneus, Agabus binaries, Laccophylus poecilus, Laccophilus minitus, Hydroporus pubescens,); Hydrophilidae (Berosus frontifoveatus, Berosus luridu, Berosus affinis, Hydophylus piceus, Berosus signaticollis, Enochrus halophiles) have been systematically identified. However, the diagnosis of Hemiptera gave rise to four families, with five species: Notonectidae (Notonecta glauca, Anisops sardea); pleidae (Plea minutissima), Corexidae (Corixa punctata) and the Nepidae family (Nepa cinerea). Diptera follows them with the following species: (Culex pipien, Culex modestus, Culex thieleri, Culiseta morsitans and Anopheles sacharovi. Hydrachnidia reveals the presence of four species belonging to three families: Eylaidae (Eylais hamata), Pionidae (Piona nodata, Piona uncata); Hydryphantidae (Eupatra rotunda). Aeshnidae has only one species Boyeria irene.