A survey for insects of material and stored products in Sana'a and Hodeidah region, Yemen " was conducted during the period of March, 2004 until February, 2012. Thirty four specimens of the collected insects were monitored, 28 of them were completely identified to the species, 5 to the genus and 1 specimen to the family. All of them belong to 16 families and 5 orders. The data obtained revealed that two insects namely, Anthrenus museorum (Linné) and Carpophilus hemipterus (L.) represent  new record for Yemen. The levels of alteration in structure of coffee insect communities in sana'a region during 2004 and 2009 were studied. ]  Seven species of coffee insects were recorded during the first period (2004) belonging to six families and compared with eight species of coffee insects during the second period (2009), belonging to six families. It was found that, the period length did not affected the general equilibrium level of structure or fauna of coffee insect communities in Sana'a region. The number of fauna species in this region increased after six years, by  Oryzaephilus mercator Fauv. and Lasioderma serricorne (F.).