Several katydid species, which are related to crickets and grasshoppers, inhabit Georgia. The loudest is the so-called common true katydid, which is seldom seen because it is nocturnal. It is also a master of camouflage, looking like oak leaves, shiny and dark green with simulated leaf veins.
Its song, heard only at night, sounds something like “ka-ty-DID.”
Both male and female katydids “sing” by rubbing their wings together, probably to help find each other in the dark. Females lay eggs on tree bark and leaf stems. Come fall and cooler temperatures, katydids will stop singing. Adults won’t survive the winter.
Dog day cicadas, heard only during the day, are so-named because they emerge each year from the ground during the dog days of July and August. After laying their eggs, adult cicadas also will perish, come winter.
In the sky: From David Dundee, Tellus Science Museum astronomer: The famous Perseid meteor shower, one of the year's best meteor showers, will be visible all next week, reaching a peak of 50 meteors per hour Wednesday night. Look to the northeast from 2 a.m. until dawn.
The moon will be new Friday. Mercury is low in the west at dusk. Saturn is in the southwest at dusk and sets in the west around midnight. The other planets are not easily visible.