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Eastern Firefly

Photinus pyralis

Description:

This is one of several Firefly species in San Cristobal de Las Casas and the first to begin it's nightly show. This one is close to the wetlands, about 1.5 cm long and flashes while flying low to the ground (rarely over 6 feet) between 8 and 9 at night. After 9 PM, it settles on plants or the ground and remains there until the next night. Beetle Family Lampyridae.

Habitat:

Garden.

Notes:

The last 3 pictures of the ventral side show the light producing organ which occupy the abdominal segments 5 and 6. These two segments are enlarged for greater light distribution. This species produces a very bright greenish-yellow light. The elytra of the beetle are very thin and soft (meaning very little chiton) and the prothorax is extended forward over the head. In pictures 2, 3 and 4, the beetle is in the process of turning itself over and you can see how it uses its third hind tarsus to grip the substrate and pull itself upright. http://www.critterzone.com/animal-pictur....

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8 Comments

LaurenZarate
LaurenZarate 10 years ago

Sorry bayucca for the slang, it just means that it looks just like mine.

bayucca
bayucca 10 years ago

What you mean by "dead match"?

LaurenZarate
LaurenZarate 10 years ago

Thank you bayucca, it is a dead match for Photinus pyralis.

bayucca
bayucca 10 years ago

Photinini?? Phontinus sp.?? Please, note the "?" ;-)...
Just a hint...

LaurenZarate
LaurenZarate 10 years ago

Please see the added pictures of the ventral side of this beetle showing the light producing segments.

LaurenZarate
LaurenZarate 10 years ago

Thank you Mayra and Hayden :))

HaydenG
HaydenG 10 years ago

Great quality!

MayraSpringmann
MayraSpringmann 10 years ago

Beautiful!!!

LaurenZarate
Spotted by
LaurenZarate

Chiapas, Mexico

Spotted on May 3, 2013
Submitted on May 13, 2013

Spotted for Missions

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