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).
White grubs are the larval stage ofinsects commonly known as Mayor June beetles (or Junebugs).Almost 100 species live in Texas,most of which do not cause signif-icant economic damage to crops orhorticultural plantings. A fewspecies, however, commonly dam-age turfgrass and other cultivatedplants.