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

Calendar
Upcoming Events

Discussion of 2018 gathering

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

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowse
Info
ImagesLinksBooksData

Species Thalassa montezumae - Montezuma Lady Beetle

Montezuma Lady Beetle - Thalassa montezumae - female Thalassa montezumae Mulsant - Thalassa montezumae - male Large Ladybird Beetle - Thalassa montezumae - male Mealybug destroyer - Thalassa montezumae Thalassa montezumae Mulsant - Thalassa montezumae Which Twice Stabbed? - Thalassa montezumae Thalassa montezumae Mulsant - Thalassa montezumae - female Thalassa montezumae Mulsant - Thalassa montezumae - female
Classification
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 Hyperaspidini (Helesius, Hyperaspidius, Hyperaspis, and Thalassa)
Genus Thalassa
Species montezumae (Montezuma Lady Beetle)
Explanation of Names
Thalassa montezumae Mulsant 1850
reference to Moctezuma, or to a place named after him. The genitive ("of") ending -ae is used for feminine nouns, which would make more sense if it referred to a place.
Numbers
1 sp. n. of Mex. (1)
Size
4.5 to 5.8 mm (2)
Identification
Gordon's figures - Elytron bluish black with reddish yellow spot in apical. Female pronotum entirely bluish black. (2)
Range
se AZ, e. to s. TX - Map / south to S. Amer. (3)(2) Introduced into FL. (BG data)
Remarks
Lectotype from Mexico
See Also
Curinus coeruleus - orange markings are on pronotum (hard shell between wings and head), not wing covers.
- Range: FL

Halmus chalybeus - no orange markings.
- Range: coastal so. Cal
Print References
Milléo, J., L.M. de Almeida & R.D. Gordon. 2004. South American Coccinellidae (Coleoptera). Part X: A systematic revision of Thalassa Mulsant (Hyperaspidinae). Revista Brasileira de Entomologia 48(3): 395-400. Full PDF
Mulsant, E. 1850. Species des coléoptères triméres sécuripalpes. Annales des Sciences Physiques et Naturelles de Lyon 2: 1-1104. (p.512)
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.
3.Illustrated Beetle (Coleoptera) Inventory of the Sabal Palm Sanctuary (Cameron County, Texas)
Edward G. Riley & Michael A. Quinn. 2011. Texas A&M University, Dept. Entomology, College Station.