Galleriinae

wax moths, snout moths

The Galleriinae are a of () with approximately 306 described distributed worldwide. This subfamily includes the commercially significant , whose (waxworms) are mass-produced as pet food and fishing . Several species are economically important pests: wax moths (Achroia and Galleria) damage honeybee colonies, while others such as the rice moth (Corcyra cephalonica) infest stored food products. The subfamily exhibits notable morphological diversity, with five recognized tribes including the recently described Joelminetiini (2007).

Identification

possess a sclerotised ring around the base of SD1 on the first abdominal . are distinguished from other by a prominent midline ridge along the and . males have a reduced or absent gnathos in the . Adults may lack and —unusual for Pyralidae—but retain the -characteristic large labial forming a 'snout'.

Habitat

Diverse including colonies and , stored food product facilities, and natural environments. Some are in nests, particularly (bees and relatives).

Distribution

Essentially worldwide; distribution in many cases facilitated by human-mediated introduction.

Host Associations

Apis mellifera - pest in honeycombsprincipal for including Galleria mellonella and Achroia grisella
Cassia fistula - larval reported for Galleria mellonella in India; previously unknown association
stored food products - pestCorcyra cephalonica (rice ), Paralipsa, and related
beeswax combs - larval food sourceAchroia grisella and related -feeding

Life Cycle

with , , , and stages. In Galleria mellonella: egg incubation 4–10 days (mean 7.2 days), eight larval lasting ~39 days, pupal period ~9 days, adult lifespan up to 8 days. Total approximately 39 days under laboratory conditions (28°C, 76% RH). occurs in spun within the substrate.

Behavior

Males produce high-frequency chirping sounds using their , with some generating structured 'mating songs' detectable only with specialized bioacoustic equipment. In Achroia grisella, males produce ultrasonic advertisement signals (70–100 kHz) via -fanning; females exhibit to these calls. Males engage in through acoustic jamming and physical displacement of rivals. Post-copulatory mate guarding occurs, with duration positively correlated with female . Some species are in nests, tolerated to varying degrees by colonies.

Ecological Role

and consumers of , , pollen, and stored materials. Some function as or in nests. Significant pests of and stored product industries. Corcyra cephalonica are used commercially to rear Trichogramma for of lepidopteran pests in over 30 countries.

Human Relevance

Major economic importance in as pests of honeybee colonies (Galleria mellonella, Achroia grisella). Waxworms are commercially mass-reared as food for pets (reptiles, birds, small mammals) and as fishing . Stored product pests cause agricultural and food industry losses. Used in scientific research: Galleria mellonella serves as a model organism for studying and as an alternative for nematodes. Corcyra cephalonica supports industries through Trichogramma production.

Similar Taxa

ChrysauginaeMay be closest living relatives; shares many plesiomorphic traits including convergent reduction or loss of the male gnathos. Distinguished by different larval and pupal .
PhycitinaeMost -rich ; Galleriinae has fewer species but greater tribal diversity (5 vs. fewer tribes in Phycitinae). Phycitinae lack the characteristic sclerotised ring on abdominal 1.
PyralinaeCore ; typically retain well-developed and , unlike many Galleriinae.