3Cutler J R, Hosie G. Birds nests as sources of infestations of Pti- nus tectus Boieldieu ( Coleoptera, Ptinidae) and the distribution of this insect in stacks of bagged flour. Journal of Stored Products Research, 1966, 2 ( 1 ) :27 - 34 .
4Coombs C W,Woodroffe G E. Some factors affecting the longevi- ty and oviposition of Ptinus tectus Boieldieu ( Coleoptera, Ptini- dae) which have relevance to succession among grain beetles. Journal of Stored Products Research , 1965, 1 ( 2 ) : 111 - 127 .
5Zuzana Kucerovat, Vaclav Stejskal. External egg morphology of common stored -product pests from the families Anobiidae( Ptini- nae) and Dermestidae (Coleoptera). Journal of Stored Products Research,2010, 46 ( 3 ) :202 - 205.