1 Digitalis medicines control irregular heart rhythms (called arrhythmias) by slowing the signals that start in the sinoatrial (SA) node. 2  This, in turn, reduces the number of signals that travel through the atrioventricular (AV node). 3  Fewer signals mean fewer arrhythmias.
June beetle (genus Phyllophaga), also called May beetle or June bug, genus of nearly 300 species of beetles belonging to the widely distributed plant-eating subfamily Melolonthinae (family Scarabaeidae, order Coleoptera).
What are the tiny red bugs on concrete? A: The tiny red bugs commonly seen on concrete are known as clover mites.. Barely visible to the naked eye, these oval-shaped arachnids measure just 0.75 to 0.85 millimeters long and have an elongated first pair of legs. Continue Reading.