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).
Lightning Bug. Lightning Bugs are in the beetle family. They are commonly called fireflies and are actually attempting to call a mate when they blink. The technical name for their blinking is bioluminescence.I think Iâd rather call it blinking, itâs easier to pronounce. Fireflies make what is called cold light.ightning Bugs are in the beetle family. They are commonly called fireflies and are actually attempting to call a mate when they blink. The technical name for their blinking is bioluminescence. I think Iâd rather call it blinking, itâs easier to pronounce.