The Antlion Pit (click to go home)
About AntlionsEducational ResourcesAntlions in CultureBestiary: Creatures of Myth and Psyche

Advertisements (not necessarily endorsed by The Antlion Pit):

Metamorphosis

The antlion larva moves deeper into the sand to build its cocoon. It extends its heavy abdomen lengthwise and from it, extrudes white silken threads which form a hollow sphere
cocoon

Figure 1. The cocoon of an antlion (Myrmeleon sp.).

© 2005 Mark Swanson
held in place by the surrounding sand. (Some of the larva's stored waste matter is used to produce this silk.)
young adult

Figure 2. An antlion adult (Myrmeleon sp.), recently emerged from its cocoon.

© 2005 Mark Swanson
Inside this hollow sphere, it undergoes metamorphosis into a pupa. Near the end of the pupal stage, the antlion eliminates the rest of its accumulated feces in the form of a pellet called a meconium. After a pupation period of about three weeks, a tiny-winged imago (adult) emerges from the cocoon, leaving a small hatch at the opening (Figure 1), and climbs to the surface.

The adult antlion usually emerges from its cocoon in the evening. It is not yet able to fly, so it climbs up the nearest plant or tree where it waits for its wings to expand and harden (Figure 2). After about 20 minutes the adult's wings are fully formed. An adult antlion may eat small flies or water, but its real purpose now is reproduction, not feeding. Its remaining life lasts less than a month on average—enough time for it to mate and lay eggs.

Click to see video Video: "Metamorphosis" (0:21)

References

Arnett, Jr., Ross H. 1985. American Insects: A handbook of the insects of America north of Mexico. New York: Van Nostrand Reinhold Co.

Grzimek, Bernard. 1979. Grzimek's Animal Life Encyclopedia. New York: Van Nostrand Reinhold Co.

Klausnitzer, Bernhard. 1987. Insects: Their Biology and Cultural History. New York: Universe Books.

Meyer, John R. 1997. "Neuroptera: Lacewings / Antlions / Dobsonflies / Alderflies / Snakeflies" (North Carolina State University). http://www.cals.ncsu.edu/course/ent425/compendium/neurop~1.html.




Go to next topic: Reproductive Behavior

larva iconGo home


About AntlionsEducational ResourcesAntlions in CultureBestiary: Creatures of Myth and Psyche

What's New? | Doodlebug Oracle | The Antlion Pit Store | Videos | Awards
FAQ | Terms of Use | Privacy Policy | Contact | Support The Antlion Pit! | Credits


Search :

Antlion Pit: A Doodlebug Anthology — http://www.antlionpit.com/
Copyright © 1996-2016 Mark Swanson. All rights reserved.

 
Advertisements: