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).
The name June beetle is applied in Europe to beetles closely related and similar in habits to the June beetles of the northern United States. Scientific classification: June bugs belong to the family Scarabaeidae of the order Coleoptera.May bugs are classified in the genus Phyllophaga. The green June beetle is classified as Cotinis nitida. European June beetles are classified in the genus Rhizotrogus.he name June beetle is applied in Europe to beetles closely related and similar in habits to the June beetles of the northern United States. Scientific classification: June bugs belong to the family Scarabaeidae of the order Coleoptera.