Sunday, August 21, 2011

Moth-2


Location : Palode, Thiruvananthapuram


MY OBSERVATIONS

10-01-2011 – Collected two cocoon


17-01-2011 – One emerged in the night.
Inside the cocoon cover there is one hard brown pupa cover also.








04-03-2011- The second cocoon is not yet emerged. So dissected. 

Inside the cocoon a baby wasp was found dead. So the cocoon is parasited.

Thursday, August 11, 2011

Antlion


Location : Palode, Thiruvananthapuram

Kingdom:       Animalia
Phylum:          Arthropoda
Class:            Insecta
Subclass:      Myrientomata
Section:         Pterygota 
Division:        Neoptilota
Subdivision:  Endopterygota
Superorder:  Neuropteroidea
Order:            Neuroptera
Suborder:      Myrmeleontiformia
Superfamily:  Myrmeleontoidea
Family:           Myrmeleontidae

The larva always moves backwards.

The larva makes a conical shaped pit in the loose sand and waiting for a prey, usually ants and small insects, which passing through the sides of the pit and slipped into the pit. 

The angle of the pit is adjusted so that no prey can escape from it. Simultaneously the antlion flicks sand to the victim and grabs it when it falls near. 

The two powerful jaws of the larva is capable of grabbing the prey and injecting a liquid venom which liquefies the body parts of the victim inside its exoskeleton.
Larval stage takes about 2-3 years to become pupa. Pupation period is about 20 days. 
Adult emerging in the evening and comes to the surface and climbs to the nearby plant and takes nearly half an hour for stretching its wings fully.

Adult antlion fly is having a clubbed antennae. They do not eat ant or insects. Usually they may not eat anything. Its aim is to mate and reproduction. Its life span is only about 20 to 45 days.

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