The way fleas reproduce depends on their species and environmental conditions, states "Flea Control: How to Get Rid of Fleas Naturally." For example, the water flea reproduces asexually under normal conditions. These fleas only produce females until abnormal conditions, such as overcrowding or a limited food supply, cause them to asexually produce only males. The male fleas then mate with the females to continue reproduction until conditions change again.
Fleas lay a cluster of up to 20 eggs or more, but this can only occur if a flea has fed on blood after emerging from its cocoon. If a flea is unable to feed, it dies without reproducing. After the eggs are laid, they hatch into worm-like larvae in approximately 12 days.The larval period lasts through three separate stages, with molting occurring after each stage is complete. The larval stage lasts approximately 2 weeks.
After the third larval stage, the fleas spin cocoons and become pupae. After this stage, they emerge as adult fleas in approximately a week if food is plentiful. If no food is available, pupae can stay inside their cocoons for up to a year until food is once again available. Pupae use vibrations, sound, carbon dioxide and heat to determine whether a food source is nearby.Learn More
Crickets are insects that reproduce by mating and laying eggs. The female cricket carries and deposits the eggs, but she must mate with a male cricket to have her eggs fertilized before she deposits them.Full Answer >
Adult lightning bugs, or fireflies, usually live on nectar or pollen, although some species do not eat once they have reached adulthood. Firefly larvae typically eat worms and slugs. The larvae numb their prey by injecting it with special digestive fluids.Full Answer >
Stink bugs generally do not bite humans, as most species are herbivorous and have mouth parts designed for sucking juices from plants. Other species of stink bug are carnivorous and feed on insect pests such as caterpillars and Japanese beetles.Full Answer >
Millipedes are not poisonous, but some species produce fluids that may cause allergic reactions in some people. The fluids may contain hydrochloric acid, which can react on the skin and cause long-term discoloration.Full Answer >