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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Coccinelloidea » Coccinellid group » Lady Beetles (Coccinellidae) » Scymninae » Hyperaspidini » Thalassa » Montezuma Lady Beetle (Thalassa montezumae)
Photo#102625
Montezuma Lady Beetle - Thalassa montezumae - female
Copyright © 2007 Graham Montgomery

Montezuma Lady Beetle - Thalassa montezumae - Female
Houston, Harris County, Texas, USA
April 10, 2007
Size: ~6 mm

Images of this individual: tag all
Twice- stabbed ladybeetle? - Thalassa montezumae - female Montezuma Lady Beetle - Thalassa montezumae - female
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Contributed by Graham Montgomery on 10 April, 2007 - 8:25pm
Last updated 23 October, 2014 - 9:05pm

convincing ID
. . . new guide page installed!

cheers, Boris
… Boris Büche, 11 April, 2007 - 4:25am login or register to post comments

 
Sweet
Thanks for the ID. 2 new species(for bugguide)in 1 day! Thanks again for the ID Tim, and thanks for creating a guide page, Boris
… Graham Montgomery, 11 April, 2007 - 4:27pm login or register to post comments

something much more exciting!
I don't believe this is a twice-stabbed Chilocorus. The blue eyes say Hyperaspini tribe. The elytra color looks too "gun blue" for Chilocorus. And Chilocorus stigma typically looks circular from the top, including shoulders that follow the circle (see the following where the shadow helps to see this shape)

Rather, I believe this is most likely Thalassa montezumae. Gordon (1) describes it as "4.5 to 5.8mm. Form rounded, convex. Female pronotum entirely bluish black. Elytron bluish black with reddish yellow spot in apical." From AZ and Texas (and Mexico and points south). "Only species of Thalassa known north of Mexico".

Unfortunately I couldn't find any web photos, but here is a link that restates some of the info from Gordon.

Another new species for BugGuide :)
… Tim Moyer, 10 April, 2007 - 10:28pm login or register to post comments

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