Mesquite Webworm Moth
Common NameMesquite Webworm Moth
Scientific NameEctomyelois goliath
FamilyPyralidae
SubfamilyPhycitinae
Wingspan (mm)25
Wing Patterncryptic
Primary Colorsbrown, tan, dark brown
HabitatArid and semi-arid regions, deserts, scrublands, areas with mesquite trees
Geographic RangeSouthwestern United States (Arizona, California, Nevada, Texas, Utah) and Mexico
Host Plantsmesquite (Prosopis spp.), acacia
Flight PeriodMultiple generations, typically spring through fall, year-round in warmer climates
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are webworms that feed on the pods and seeds of mesquite trees, creating silken webs. Pupation typically occurs within the web or in the soil.
Identification TipsLook for the characteristic mottled brown forewings with darker spots and its strong association with mesquite trees. Its size and general appearance are typical of the Phycitinae subfamily.
Description
A small to medium-sized moth with mottled brown and tan forewings, featuring irregular darker brown spots and markings. Its body is slender, and it has relatively long antennae.
