Opuntia Leaf Miner
Common NameOpuntia Leaf Miner
Scientific NameMarmara opuntiella
FamilyGracillariidae
SubfamilyGracillariinae
Wingspan (mm)7
Wing Patterncryptic
Primary Colorssilvery-white, brown
HabitatDeserts, arid grasslands, and areas where Opuntia cacti are prevalent
Geographic RangeSouthwestern United States, Mexico
Host PlantsOpuntia spp.
Flight PeriodMultiple generations, typically spring to fall
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesEggs are laid on Opuntia cactus pads, and the larvae tunnel within the pad tissue, creating the characteristic serpentine mines. Pupation occurs either within the mine or on the plant surface.
Identification TipsThe most distinctive identification feature is the serpentine mine on Opuntia cactus pads, which appears as a raised, pale, winding trail. Identifying the adult moth requires close examination due to its small size and cryptic coloration.
Description
The image displays the distinctive, winding, pale green to white serpentine mine created by the larva of the Opuntia Leaf Miner moth within the pad of a prickly pear cactus. The adult moth is a tiny, slender micro-moth, typically silvery-white to brownish with darker markings.
