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What Do Katydids Eat: The Best Foods for These Mysterious Insects!

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Katydids are insects that belong to the family Tettigoniidae and are known for their signature call resembling “Katy did, Katy did, Katy did”. They are commonly found in natural areas such as forests, meadows, and gardens, and are easily recognizable by their long antennae and large hind wings.

They feed mainly on plants and play a crucial role in the ecosystem, serving as a food source for predators and helping pollinate vegetation. Found all around the world, except in Antarctica, katydids play an essential part in maintaining a healthy and balanced ecosystem.

This blog post will delve into the optimal diet for katydids and explore fascinating facts about these insects. Get ready to expand your knowledge!

Biological Characteristics of Katydids

katydid on a tree
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1. Taxonomy

Katydids belong to the family Tettigoniidae and are part of the order Orthoptera, which also includes grasshoppers and crickets.

2. Appearance

They have a distinctive appearance, characterized by their long antennae and large, triangular hind wings. Their bodies are typically green or brown, which helps them blend in with their surroundings and avoid predators.

3. Habitat

Katydids are typically found in forests, meadows, and gardens. They are distributed worldwide except in Antarctica and are known to thrive in a wide range of habitats.

These insects prefer environments with lush vegetation and plenty of moisture, as they feed primarily on plants and need a source of water to survive. They can be found in tropical and temperate regions, wooded areas, fields, and along streams and rivers.

Some species of katydids are also known to inhabit urban areas, where they can often be seen on trees and bushes in parks and residential areas.

4. Reproduction

Katydids reproduce through a process called oviposition, where the female lays eggs in a specific location, such as on leaves, stems, or soil. The eggs typically hatch into nymphs, which resemble small versions of adult katydids.

The nymphs undergo a series of molts as they grow, eventually reaching maturity and undergoing metamorphosis to become adult katydids.

In some species of katydids, males produce a characteristic mating call, which is used to attract a female. The calls are often species-specific and can be heard at night, particularly in the late summer and early fall. Mating between katydids usually involves the transfer of sperm from the male to the female during copulation.

After mating, the female lays eggs in a specific location, which she may protect by covering them with a protective substance or by placing them in a sheltered location. The eggs then develop and hatch into nymphs, which will grow and mature over several molts.

The life cycle of katydids can range from several months to several years, depending on the species and environmental conditions.

5. Role in the ecosystem

Katydids play an important role in the ecosystem as they are part of the food chain. They are a food source for predators, such as birds, reptiles, and other insects, and their presence helps to maintain the balance of the ecosystem.

Katydids also play a role in pollination as they feed on plants, thereby spreading pollen and helping plants to reproduce. Additionally, they help to control the growth of plants by eating leaves and other parts of the plant, which can prevent overgrowth and promote a healthier ecosystem.

Katydids are also important indicators of the health of an ecosystem. The presence of katydids and other insects is an indicator of a healthy environment, as these insects require a clean and stable environment in order to survive.

The absence or decline of katydids can indicate environmental problems, such as pesticide use or habitat destruction, and can serve as an alarm signal for conservation efforts.

The Diet of Katydids

Katydids are primarily herbivores and feed on plants, including leaves, stems, flowers, and fruits. Their sharp mandibles are adapted for cutting and chewing tough plant material, and they are known to feed on a wide range of plant species, including grasses, shrubs, trees, and crops.

Some species of katydids are known to be generalist feeders and will eat a variety of different plant species, while others are more specialized and feed on specific types of plants.

In addition to plant material, some species of katydids are known to feed on small insects and other arthropods, such as spiders, mites, and aphids. These katydids are considered to be omnivores and are capable of switching between plant and animal food sources depending on availability.

The diet of katydids is an important factor in their role in the ecosystem, as they play a role in controlling the populations of plants and other insects.

By feeding on leaves, stems, and flowers, katydids can help control the growth and spread of certain plant species, and by feeding on other insects, they can help regulate the populations of pests and other herbivores.

Types of Leaves Katydids Consume

Some common plant species that katydids have been observed feeding on include:

  1. Oak leaves
  2. Maple leaves
  3. Elm leaves
  4. Rose leaves
  5. Grass leaves
  6. Fern leaves
  7. Bean leaves
  8. Pea leaves
  9. Corn leaves
  10. Alfalfa leaves

Types of Flowers Katydids Consume

Here is a list of some of the most frequently observed flowers that katydids feed on:

  1. Clover
  2. Goldenrod
  3. Sunflowers
  4. Daisies
  5. Asters
  6. Roses
  7. Lilies

Types of Fruits Katydids Consume

It has been noted that katydids feed on a diverse range of fruits, some of which include:

  1. Apples
  2. Pears
  3. Grapes
  4. Berries (such as strawberries, raspberries, and blackberries)
  5. Citrus fruits (such as oranges, lemons, and limes)
  6. Melons (such as watermelon and cantaloupe)
  7. Stone fruits (such as peaches, cherries, and plums)
  8. Tomatoes

Different Species of Katydids and Their Feeding Habits

There are many different species of katydids, each with its own unique characteristics, habitats, and behaviors. Some of the most well-known species include:

1. Greater Angle-Wing Katydid

The Greater Angle-Wing Katydid, found in North America, is recognized by its unique, angular-shaped wings.

This species primarily feeds on plants, consuming leaves, stems, flowers, and fruits of various plant species, including grasses, shrubs, trees, and crops.

In certain situations, they may also consume small insects and other arthropods, classifying them as omnivores.

2. Katydid Tree Cricket

Katydid tree crickets are known for their distinct high-pitched chirping calls produced by males. These insects are primarily herbivorous and feed on a range of plant materials including leaves, stems, flowers, and sometimes fruits.

Some species of katydid tree crickets may also feed on small insects and other arthropods, thus they can be classified as omnivores. The specific diet of katydid tree crickets varies based on the species and the food sources available in their habitat.

3. Mealybug Destroyer

The Mealybug Destroyer katydids are famous for their consumption of mealybugs, which are harmful to plants. These katydids have an omnivorous diet and consume a variety of food sources including mealybugs, scale insects, aphids, and other small insects.

In addition to insects, they also feed on plant nectar and honeydew produced by other insects, as well as plant matter and pollen.

As natural predators of plant-damaging insects, Mealybug Destroyer katydids play a crucial role in controlling their populations in agricultural and horticultural systems.

4. Snowy Tree Cricket

The Snowy Tree Cricket, found in North America, is characterized by its light and fuzzy appearance. As herbivores, they feed on the sap and juices of various plants, such as shrubs, trees, and herbaceous plants.

With their sharp mandibles, they pierce the plant material and extract the sap for consumption. Some commonly observed plants for Snowy Tree Cricket feeding include oak, maple, elm, and birch.

Although they may also feed on small insects and arthropods, such as aphids and mites, these are considered to be a minor component of their diet.

5. Lance-Leaved Katydid

The Lance-Leaved Katydid, native to North America, is characterized by its distinctive long and slender antennae. As a herbivore, it mainly feeds on plant material such as leaves, stems, and flowers from various plant species, including grasses and shrubs.

Its diet can vary based on the food sources available in its habitat, but it is known to consume a diverse range of plants. Although less frequent, some individuals of this species may also feed on small insects and other arthropods.

6. Sword-Bearing Katydid

The Sword-Bearing Katydid is a herbivorous species found in South America, distinguishable by its long, sword-like antennae.

Its diet primarily consists of plant material, such as leaves, stems, and flowers, from a range of plant species including grasses, shrubs, trees, and crops.

7. Great Green Katydid

The Great Green Katydid is a large species of katydid found in North America, with some individuals reaching up to 3 inches in length.

As herbivores, they primarily feed on the leaves and stems of various plants, including trees, shrubs, grasses, and crops such as corn, soybeans, and alfalfa. This species has been observed feeding on a diverse range of plant species.

Interesting Facts About Katydids

Katydids are intriguing insects that possess a range of remarkable traits and habits. Here are some interesting facts about these fascinating creatures:

  1. Chirping: Katydids are well-known for their distinctive, chirping calls, which males produce to attract females.
  2. Camouflage: Many katydids are highly camouflaged, blending in with their surroundings to avoid predators. They use their wings and body shape to resemble leaves, twigs, and other parts of plants.
  3. Mating: Katydids have a unique mating behavior, where the male produces a long, complex call to attract a female. This call is species-specific, and only females of the same species will respond to it.
  4. Echolocation: Some species of katydids use echolocation to locate food, mate, and navigate their environment.
  5. Diversity: There are over 6,400 species of katydids, found in almost every part of the world. They come in a variety of shapes, sizes, and colors.
  6. Life Cycle: Katydids go through complete metamorphosis, with four stages in their life cycle: egg, nymph, adult, and reproduction.
  7. Predator Defense: Some species of katydids have developed defense mechanisms, such as producing a foul-smelling odor or producing a loud, piercing sound to deter predators.


In conclusion, I have explored the unique biological features, diet, and diverse species of katydids, as well as shared some interesting facts about these fascinating insects.

Thank you for taking the time to learn about katydids, and I hope the information shared in this article has been insightful.

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