What are Antlions?

Nov. 25, 2024

Researchers recently spotted a large-sized adult antlion, Palpares contrarius, that resembles a dragonfly for the first time in Tamil Nadu on the Madras Christian College (MCC) campus.

About Antlions:

  • Antlions are insects belonging to the order Neuroptera. They are classified in the family Myrmeliontidae. 
  • They are named for the predatory nature of the larvae, which commonly trap ants and other small insects in pits dug into the ground.
  • Antlions are found throughout the world, primarily in dry, sandy regions.
  • It is very difficult to spot them during the day and can be spotted at night near illuminated spots. 
  • Features:
  • Adult antlions resemble damselflies, but they have softer bodies, a lacy wing pattern, and long clubbed antennae.
  • The bodies of antlions are long and slender and grayish in color. 
  • The wings are generally clear, but some species have spots on their wings. 
  • Antlions are weak fliers and can be found at night near lights. 
  • They come in various shapes and sizes, with larvae typically measuring from a few millimeters to several centimeters, depending on the species. 
  • Antlion larvae have rounded bodies with long sickle-shaped jaws. The larvae are found at the base of cone-shaped pits in sandy areas.
  • They usually remain in the larval stage for one to two years, depending on the species. 
  • Once they pupate, they require up to one month to complete their development. Adult antlions survive for one to two months.
  • Antlions are harmless and cause no damage to flowers, people, or structures. 
  • They are highly beneficial and feed on ants and other insects that fall into their traps. 

What is Palpares contrarius?

  • It is a large-sized adult antlion.
  • Though it looks like a dragonfly, it has an antenna and a distinct fluttering flight, which separates it from them. 

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