“Grubs” are basically just a generic term for moth or beetle larvae, although some varieties are specifically named as grubs, such as White Grubs. They are also called worms, and will do significant damage to landscaping and lawns. Certain wasps will prey upon grubs, circling lawns looking for infestations.
Size & Identifying Characteristics:
• Larvae of some moths, up to 2” long
• Hide in the ground during the day
• Emerge at night to feed on grasses and plants
• Usually most active during the warmer months
JUNE BEETLE
There are many varieties of June Beetles, but none found in Southern California are of the extremely destructive type. They are found primarily in the early summer when they are attracted to lights, and can be a nuisance when you are trying to enjoy your patio on a warm summer night. Adults may be up to 3/4ths inch in size. Some are striped, most are brown or shades thereof. The larvae feed on the roots of many plants. June Beetles are a type of Scarab Beetle—the kind found in Egyptian hieroglypics and jewelry. They were considered sacred and somewhat mystical as some varieties can even make a noise when handled.
1.Antenna- 2 small 4 segmented
2.Eyes- compound
3.Head- head capsule
4.Legs- 3 thoracic legs, no prolegs
5.Wings- none on larva
6.Thorax-body C shape
7.Petiole- none
8.Abdomen- none
9.Color- white to cream color
10.Other- rasters will ID grubs |
Life Cycle
Many of the wide variety of grubs are beetles, which actually burrow into the ground. Eggs are laid, which hatch into larvae, which have a voracious appetite for roots. The adults include the Scarab Beetles and June Beetles, often seen during the summer months attracted to lights. The whole life cycle of some varieties can take up to four years to complete.