couple of cereal leaf beetles mating on grass

animal animals beetles beneficial big bug bugs cereal couple creature critter critters daylight daytime detail detailed details during entomology environment europe fauna favorable field fields free grass helpful herb herbs insect insects invertebrate leaf love mate mates mating meadow meadows mediterranean melanopus natural nature oulema outdoors outside pair plant plants pollen pollinating pollinator rare sex small southwestern species springtime strange two useful valuable vegetation weird wild wildlife