background granit house stone texture wall aggregate chippings crushed fragments railway grey large pavement paving rocks black old square crystals feldspar felsic floor igneous intrusive porphyry quartz rock bloki bruk chodnik duże kamienie kolorowe kostka kształty skała stara tapeta tekstura wzór African-black-beetle African-lawn-beetle appearance beetle black-beetle bug color colour destructive granit-background granite hard hardy hemiptera heteronychus-arator insect lawn-infestations lawns legs persistent pest species surface