Lesser waxmoth, achroia grisella, are a nuisance to beekeepers as they destroy comb, the life cycle can help us pin point methods of control or avoidance of this. In this note we report Achroia grisella F. (Lepidoptera: Pyralidae), a beehive pest, for the first time in Argentina. In addition, we report. Request PDF on ResearchGate | On Jan 1, , Olga Inés Cepeda-Aponte and others published Lesser Wax Moth Achroia Grisella: First Report for Stingless.

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The following other wikis use this file: Achroia grisella Fabricius Adults are a silver, grey, or beige with a yellow head.

Generally, males are smaller than females Figure 4. The most important aspect of managing lesser wax moths is to maintain healthy, robust honey bee colonies. Even though the bats do not exist in some of the areas where moths are currently found, the lesser wax moth has retained its evolutionary mode of defense from its native land.

Adults live approximately one week and are most active at night.

Lesser Wax Moth Achroia grisella (Fabricius, ) | Butterflies and Moths of North America

Female lesser wax moths can produce up to eggs and prefer to lay them in close proximity to used brood comb. Photos are at the same scale. If a box of combs that is infested with larvae is banged smartly on to paved ground and then removed, the larvae that are dislodged will set off, in a radial fashion, all in different directions like an expanding star.

They cover the silk with their frass. The moths can often be observed vibrating, but otherwise immobile. Retrieved 16 October Worker bees find the damaged cappings and chew away what remains of the cap, exposing the developing honey bee pupae.


Achroia grisella caterpillars, length mm Nederlands: By eating the combs, the moths can reduce the harm to insects of that region and provide a clean space for other organisms to inhabit. Achroia grisella Fabricius Insecta: The bronze colour becomes more apparent if you squash one with a finger. A female lays on average eggs in her lifetime.

File:Achroia grisella caterpillars, kleine wasmot rupsen.jpg

The larvae cause most of the damage grieslla comb, the spinning stage causes the damage to woodwork and finally the adults cause further damage by mating and propagating the species. The two species are similar in appearance with the major difference being size. Journal of Insect Behavior. This may be energy saving. Males are slightly smaller than females and have a scalloped leading edge to the wings.

Therefore, the amount of food that the larvae can eat depends on the amount of material that the bee colony produced, as well as the number of moth generations that have persisted on the same comb since the initial infestation began.

Bald brood caused by a wax moth infestation. In order to avoid being captured by bats, the moths fly erratically, fall to the ground, or fly away from the source of the sound.

The eggs are similar to those of greater wax moths. Articles with ‘species’ microformats. The cocoon is cemented into a boat shaped cavity the larva chews in the wood. Lesser wax males produce ultrasonic pulses in order to attract females. Note that the male is smaller than the female. The lesser wax moth mating system is based on sound. Note how the wax cappings have been removed from selected cells and the pupae within those cells are visible.


lesser wax moth – Achroia grisella

They are spherical and creamy white in color. The eggs are creamy white and spherical Figure 2. This page was last edited on 29 Decemberat Adults are about 0. Adult Breeding Stage Adult Wax Moths cause no direct comb damage because their mouth parts are atrophied.

Smithsonian Contributions acnroia Zoology. Females also lay their eggs at night. Lesser wax moths are also raised commercially as animal feed, fish bait, and models for scientific research.

Eggs left and a first instar right of the greater wax moth, Galleria mellonella L. They are not usually noticed unless specifically looked for.

Lesser wax moth

The larval stage is the only life stage that eats. I do not know. This can be avoided by beekeepers if they freeze hive products to be used for human consumption for at least 24 to 48 hours. Larvae typically consume comb containing bee brood honey bee larvae and pupaeyrisella, and honey.

Females deposit their eggs in crevices in or near bee hives so that a food source will be close to the emerging larvae. The larvae can detect each other somehow acrhoia smell or CO2 emission.

Good ventilation and direct light can reduce lesser wax moth populations in stored products. Adult females typically lay eggs in protected crevices near a food source.