Most commonly reported as a pest on St. Augustine but also infests most other turfgrasses.
Chinch bug infestations frequently occur in turfgrass with thick thatch that is exposed to full sunlight during periods of hot, dry weather. Chinch bug damage is often less noticeable during the spring and early summer. Damage frequently appears from early July through late August when the insects are actively feeding.
Information from: www.fisoutdoor.com