Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa


Species Cryptolaemus montrouzieri - Mealybug Destroyer

Mealybug Destroyer - Cryptolaemus montrouzieri Cryptolaemus montrouzieri - male coccinellid - Cryptolaemus montrouzieri ladybug larva - Cryptolaemus montrouzieri Cryptolaemus montrouzieri  - Cryptolaemus montrouzieri Cryptolaemus montrouzieri Mulsant - Cryptolaemus montrouzieri Mealybug destroyer - Cryptolaemus montrouzieri Cryptolaemus montrouzieri Mulsant - Cryptolaemus montrouzieri
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
No Taxon (Series Cucujiformia)
Superfamily Coccinelloidea
No Taxon (Coccinellid group)
Family Coccinellidae (Lady Beetles)
Subfamily Scymninae
Tribe Scymnini (Dusky Lady Beetles)
Genus Cryptolaemus
Species montrouzieri (Mealybug Destroyer)
Synonyms and other taxonomic changes
Cryptolaemus montrouzieri Mulsant
Orig. Comb: Cryptolaemus montrousieri Mulsant 1853
Explanation of Names
Patronym for Jean Xavier Hyacinthe Montrouzier (1820- 1897), a French priest, explorer, botanist, zoologist and entomologist.
Monotypic genus (1)
Adult 3.4 - 4.5 mm (2)
Larvae to 13 mm (Cornell)

Larva is covered with medium to long waxy curls.

Adult beetle is dark brown to black with orange/tan head and tail, and dark legs (similar colored Scymnus spp. have yellow legs (2)).
Adults can be sexed visually: all the legs of males are dark, while females have light-brown forelegs.
widely dist., esp. so. US (BG data)
Established in IN, MO, FL, CA (1)
mostly: May-Aug (BG data)
Both adults and larvae feed on mealybugs, and are regularly purchased for pest control as beneficial insects.
Life Cycle
Yellow eggs laid among mealybugs hatch to larvae which eventually pupate and emerge as adult beetles.
Imported to the US from Australia in 1891 to control citrus mealybugs in California. Widely used for control of citrus and long-tailed mealybugs, soft scales and related pests. Will not survive cold winters, so it is mostly used in greenhouses or mild-winter areas, or has to be introduced annually.
See Also
Scymnus sp. - smaller (under 2.5mm), and usually with light brown legs, not black. (2)
Print References
Opuscules entomologiques, v.3, p.140 - Mulsant's original description
Internet References
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.The Coccinellidae (Coleoptera) of America North of Mexico
Robert D. Gordon. 1985. Journal of the New York Entomological Society, Vol. 93, No. 1.