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Gravid Leaf Beetle

Family Chrysomelidae

Photo by LaurenZarate
Published on Project Noah
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16.73, -92.93

Field Notes

Description:

A very small Leaf Beetle, normally about 3-4 mm long. The elytra are a dark metallic green or blue and the thorax is orange-red. The females of these beetles can become so engorged with eggs that their abdomens reach up to 5 times their normal size and are often brightly colored. The elytra on this beetle are the small dark flaps at the upper edge of the abdomen. They often look superficially like stink bugs from a distance. Family Chrysomelidae. The last picture was taken in the same place on 27 July 2016.

Habitat:

Common on bushes along the Highway between San Cristobal and Tuxtla Gutierrez, Km 18.5, 1164 meters.

Species ID Suggestions

Gravid Leaf beetle

Metacycla sp.

Comments (10)

Very close to M. marginata female (fig. 2): http://www.sil.si.edu/DigitalCollections/bca/navigation/bca_12_06_01s/bca_12_06_01sshowplate.cfm?id=418 Species not listed for Mexico, known from Guatemala. As you see in the plates, males do not differ that much and probably are flightless as well.
congrats Lauren... pretty amazing looking abdomen !
Thank you so much for this honor from our hardworking Noah Rangers!
Congratulations Lauren! This quite remarkable beetle has been chosen as our Spotting of the Week! https://www.facebook.com/projectnoah/photos/a.10150595289465603.674700.10150120463815603/10157208924360603/?type=3&theater https://twitter.com/projectnoah/status/757727235608604672
Thank you Dan, yes way too big for the whole beetle. I wonder if the abdomen returns to a normal size after egg laying.
Woah! Kinda crazy looking beetle, that abdomen looks way too big for its head!

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