New species of genus Dinogamasus Kramer (Mesostigmata, Laelapidae) associated with large carpenter bees (Hymenoptera: Apidae) in Egypt, with new concepts of the genus
  In vivo evaluation of toxic effects of avermectin, Citrus sinensis var Balady and C. limon on female Hyalomma dromedarii (Acari: Ixodidae)