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Mecoptera

life science Maturity 5-7 Next article →

Mecoptera is a special group of insects with about six hundred species. You might know them as scorpionflies. This name comes from the Panorpidae family. In this family, the males have parts that look like a scorpion's stinger.

Skorpionsfliege Panorpa communis male genital
Skorpionsfliege Panorpa communis male genital

These insects have long, slender bodies and narrow wings. They also have a long, beak-like mouth called a rostrum.

Panorpa communis V
Panorpa communis V

Most mecopterans live in moist places like moss or damp leaves. A few special types are snow scorpionflies. These adults can even be seen walking on snowfields.

Boreus hyemalis male
Boreus hyemalis male

Life for a mecopteran follows a very specific way it works. It all begins when a female lays eggs in wet spots. These eggs often soak up water to grow larger. Some eggs wait for the wet season before they hatch.

Nannochorista philpotti (cropped)
Nannochorista philpotti (cropped)

When they do hatch, the larvae look like caterpillars. These young insects mostly eat vegetable matter. Later, they become pupae that do not eat. These pupae may stay still in a state called diapause. This helps them wait for better weather before becoming adults.

British Entomologycutted Plate114
British Entomologycutted Plate114

Scientists have studied these insects for a long time. In 1758, Carolus Linnaeus named the European scorpionfly Panorpa communis. Later, in 1891, Alpheus Hyatt and Jennie Maria Arms named the whole Mecoptera group. The name comes from Greek words for "long" and "wing."

Panorpa communis copula
Panorpa communis copula

We also have many fossils to tell us about their past. Fossil species are much more diverse than the ones living today. There are about four hundred known fossil species in eighty-seven different genera. These old fossils help us see how insects changed over time.

Many different families make up this group. The Panorpidae and Bittacidae are the largest families. Hangingflies, or Bittacidae, have very interesting mating habits.

Bittacidae fg1
Bittacidae fg1

A male hangingfly will catch a gift of prey, like a fly or caterpillar. He presents this meal to a female to win her over. If she eats the gift, they mate while she hangs upside down. In some species, a large gift can lead to mating for up to 29 minutes.

Hylobittacus apicalis Michigan
Hylobittacus apicalis Michigan

This helps the male ensure he has many offspring.

Mecoptera are very important to the history of life on Earth. Long ago, they may have helped pollinate early plants. These plants were called gymnosperms. Before bees existed, these insects used their long mouths to feed on nectar and pollen.

Panorpa communis with prey Diogma glabrata glabrata
Panorpa communis with prey Diogma glabrata glabrata

Today, most adults are scavengers that eat dead things. They are even useful to forensic entomology. This is a science that uses insects to help solve mysteries. Some mecopterans are the very first insects to arrive at a dead animal. This helps experts learn about what happened there.

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🖼️ Images & Media (17)
File:Common house fly, Musca domestica.jpg
Common house fly, Musca domestica.jpg
File:Gunzesrieder Tal Insekt 3.jpg
Gunzesrieder Tal Insekt 3.jpg
File:Nannochorista philpotti (cropped).jpg
Nannochorista philpotti (cropped).jpg
File:British Entomologycutted Plate114.png
British Entomologycutted Plate114.png
File:Boreus hiemalis2 detail.jpg
Boreus hiemalis2 detail.jpg
File:Pulex irritans female ZSM.jpg
Pulex irritans female ZSM.jpg
File:Boreus hyemalis male.jpg
Boreus hyemalis male.jpg
File:Notiothauma reedi.jpg
Notiothauma reedi.jpg
File:Merope tuber dorsal view - ZooKeys-269-051-g007A.jpeg
Merope tuber dorsal view -...
File:Chorista australis Gundaroo NSW Australia.jpg
Chorista australis Gundaroo NSW Australia.jpg
File:Hylobittacus apicalis Michigan.jpg
Hylobittacus apicalis Michigan.jpg
File:Panorpa communis V.jpg
Panorpa communis V.jpg

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