The True Bugs. In Great Britain there are around 1800-1850 species of True Bug and we appreciate how under recorded they are likely to be in the Garden. We expect our list of Hemiptera to continue to grow. Aphids are unsurprisingly the most abundant Hemiptera that we are aware of in the Garden. In terms of larger bugs then the Green Shield Bug is probably the most frequently encountered species in the Garden, along perhaps with the Common Froghopper.