Idaho’s high desert plains and mountainous river valleys are home to grasshoppers that can handle dry conditions. When you are trying to identify the different types of grasshoppers in Idaho, you need to look at their size, color, and where they live. This guide will help you spot the most common species in the Gem State.
Grasshoppers are everywhere in Idaho, from the sagebrush steppe to the wheat fields. They can be a big problem for farmers, but they are also a key part of the ecosystem. Knowing what you are looking at is the first step to understanding these insects.
Types Of Grasshoppers In Idaho
There are over 100 species of grasshoppers in Idaho, but only a few are really common. The main groups you will see are the spur-throated grasshoppers, the band-winged grasshoppers, and the slant-faced grasshoppers. Each group has its own look and behavior.
Spur-Throated Grasshoppers
These are the largest and most destructive grasshoppers in the state. They have a small bump (spur) on the underside of their throat. You can find them in crops and rangelands.
Differential Grasshopper
This is one of the biggest grasshoppers you will see. It is yellow or brown with black markings on its legs. It likes to eat alfalfa, corn, and wheat. You will see it in southern Idaho’s farmlands.
Two-Striped Grasshopper
This grasshopper has two pale stripes running from its eyes to the tips of its wings. It is a strong flyer and can move into new areas quickly. It eats a wide range of plants, including grasses and crops.
Red-Legged Grasshopper
As the name says, its back legs are red or orange. It is medium-sized and common in grassy areas. It can be a pest in hay fields and pastures.
Band-Winged Grasshoppers
These grasshoppers have bright bands on their hind wings. They use these colors to startle predators. They are often found in dry, open areas.
Carolina Grasshopper
This is a large, grayish-brown grasshopper. It has black wings with a yellow border. It is common on bare ground and gravel roads. It makes a loud crackling sound when it flies.
Red-Shanked Grasshopper
It has bright red or pink hind legs. The wings are dark with a pale band. It lives in sagebrush and shortgrass prairies. You can see it in the high desert areas.
Pallid-Winged Grasshopper
This one is smaller and pale brown. Its wings are clear with a faint band. It blends in well with dry soil and rocks. It is common in the Snake River Plain.
Slant-Faced Grasshoppers
These grasshoppers have a slanted face and a narrow body. They mostly eat grasses. They are not usually a big problem for crops.
Clear-Winged Grasshopper
This is a small, slender grasshopper. It is green or brown. It lives in grasslands and along roadsides. It is one of the most common grasshoppers in Idaho.
Meadow Grasshopper
This one is bright green with a brown stripe on its back. It likes moist meadows and irrigated fields. It is not a major pest.
White-Lined Bird Grasshopper
This is a large, long-winged grasshopper. It has a white line on its side. It eats grasses and can be found in rangelands.
Where To Find Different Grasshoppers
Different grasshoppers live in different parts of Idaho. The type of land and the plants there decide which species you will see. Here is a breakdown by region.
Snake River Plain
This is the dry, flat area in southern Idaho. You will find many band-winged grasshoppers here. The Carolina grasshopper and the red-shanked grasshopper are common. The soil is sandy or rocky, which helps them hide.
- Carolina grasshopper
- Red-shanked grasshopper
- Pallid-winged grasshopper
- Differential grasshopper (in irrigated fields)
Mountain Valleys
In the forested valleys of central and northern Idaho, you will see different species. The clear-winged grasshopper and the meadow grasshopper are common here. They like the cooler, wetter conditions.
- Clear-winged grasshopper
- Meadow grasshopper
- Two-striped grasshopper
- Red-legged grasshopper
Rangelands And Sagebrush
These areas are home to many native grasshoppers. The white-lined bird grasshopper and the slant-faced species are common. They eat the native grasses and sagebrush.
- White-lined bird grasshopper
- Slant-faced grasshoppers
- Red-shanked grasshopper
- Carolina grasshopper
How To Identify Grasshoppers
Identifying grasshoppers takes practice. You need to look at several features. Here is a step-by-step guide to help you.
- Look at the size. Is it big (over 1.5 inches) or small (under 1 inch)?
- Check the color. Is it green, brown, or yellow? Are there any stripes or markings?
- Look at the legs. Are the back legs red, yellow, or plain? Are there black bands?
- Check the wings. Do the hind wings have bright colors or bands?
- Look at the face. Is it slanted or blunt? Is there a spur on the throat?
- Note the habitat. Are you in a field, a meadow, or a desert?
Use these steps to narrow down the species. A field guide or a phone app can also help. Remeber that some grasshoppers change color as they grow.
Grasshopper Life Cycle In Idaho
Grasshoppers have a simple life cycle. They go through three stages: egg, nymph, and adult. Understanding this cycle helps you know when to look for them.
Egg Stage
Female grasshoppers lay eggs in the soil in late summer or fall. They put them in a pod that can hold 20 to 100 eggs. The eggs stay in the ground all winter. They hatch in the spring when the soil warms up.
Nymph Stage
When the eggs hatch, tiny nymphs come out. They look like small adults but have no wings. They molt (shed their skin) several times as they grow. Each stage is called an instar. Most grasshoppers have 5 to 6 instars.
Adult Stage
After the last molt, the grasshopper becomes an adult with full wings. It can now fly and reproduce. Adults live for several weeks to a few months. They mate and lay eggs before dying in the fall.
Grasshopper Behavior And Habits
Grasshoppers are active during the day. They need warm temperatures to move around. Here are some common behaviors you might see.
Feeding
Most grasshoppers eat plants. They use their strong jaws to chew leaves and stems. Some species prefer grasses, while others like broad-leaf plants. They can eat a lot of food each day.
Flying
Grasshoppers use their wings to escape predators and find food. Band-winged grasshoppers make a clicking or crackling sound when they fly. This is called crepitation. It helps them communicate.
Camouflage
Many grasshoppers are colored to match their environment. This helps them hide from birds and other predators. Some can change color slowly over time.
Migration
Some grasshoppers, like the two-striped grasshopper, can move in large groups. They fly to new areas when food runs out. This can cause problems for farmers.
Impact On Idaho Agriculture
Grasshoppers can be a serious pest in Idaho. They eat crops and rangeland grasses. In bad years, they can cause millions of dollars in damage. Farmers and ranchers need to manage them carefully.
Crops Affected
Grasshoppers eat many different crops. The most common ones are:
- Alfalfa
- Wheat
- Barley
- Corn
- Potatoes
They also eat garden vegetables and flowers. If you have a garden, you might see them on your plants.
Rangeland Damage
On rangelands, grasshoppers eat the grasses that cattle need. This reduces the amount of food for livestock. It can also lead to soil erosion if the plants are eaten too much.
Management Methods
There are several ways to control grasshoppers. The best method depends on the situation.
- Biological control. Use natural enemies like birds, spiders, and parasitic flies.
- Cultural control. Keep fields healthy so plants can recover from feeding.
- Chemical control. Use insecticides when grasshopper numbers are high.
- Mechanical control. Use traps or barriers to protect small areas.
It is important to monitor grasshopper numbers early in the season. If you catch them when they are nymphs, it is easier to control them.
Beneficial Grasshoppers
Not all grasshoppers are bad. Some play a helpful role in the ecosystem. They provide food for wildlife and help recycle nutrients.
Food For Wildlife
Many animals eat grasshoppers. Birds, lizards, snakes, and small mammals all rely on them. They are an important source of protein. Without grasshoppers, these animals would struggle to find food.
Nutrient Cycling
When grasshoppers eat plants, they break down the plant material. Their droppings add nutrients to the soil. This helps plants grow.
Pollination
Some grasshoppers visit flowers for nectar. While they are not as important as bees, they can help with pollination. This is more common in native grasslands.
Common Misconceptions
There are many myths about grasshoppers. Here are a few facts to clear things up.
- Myth: Grasshoppers only eat crops. Fact: Most species eat native plants and are not pests.
- Myth: All grasshoppers can fly. Fact: Some species have short wings and cannot fly.
- Myth: Grasshoppers are dangerous to humans. Fact: They do not bite or sting. They are harmless.
- Myth: Grasshoppers live for years. Fact: Most live for only a few months.
How To Observe Grasshoppers
Watching grasshoppers can be fun and educational. Here are some tips for observing them in Idaho.
- Go out in the morning. Grasshoppers are most active when it is warm but not too hot.
- Walk slowly. They will jump away if you move too fast.
- Look on the ground. Many species hide in the grass or on bare soil.
- Use binoculars. This helps you see details without getting too close.
- Take photos. This helps you identify them later.
Be patient. Grasshoppers are fast and hard to catch. With practice, you will get better at spotting them.
Grasshopper Species To Watch For
Some grasshoppers are more common than others. Here is a list of the ones you are most likely to see in Idaho.
- Differential grasshopper
- Two-striped grasshopper
- Red-legged grasshopper
- Carolina grasshopper
- Red-shanked grasshopper
- Pallid-winged grasshopper
- Clear-winged grasshopper
- Meadow grasshopper
- White-lined bird grasshopper
These nine species cover most of what you will find. If you see something different, it might be a less common species.
Seasonal Activity
Grasshoppers are most active from late spring to early fall. The exact timing depends on the weather. Here is what to expect each season.
Spring
Nymphs start hatching in April or May. They are small and hard to see. They eat a lot as they grow.
Summer
Adults appear in June and July. This is the best time to see them. They are active and easy to spot.
Fall
Adults start to die off in September and October. Females lay eggs in the soil. The cycle starts again next spring.
Grasshopper Predators In Idaho
Many animals eat grasshoppers. Here are some of the main predators in Idaho.
- Birds: Horned larks, meadowlarks, and hawks
- Reptiles: Sagebrush lizards and garter snakes
- Mammals: Coyotes, badgers, and ground squirrels
- Insects: Robber flies and praying mantises
- Spiders: Wolf spiders and jumping spiders
These predators help keep grasshopper numbers in check. Without them, grasshoppers would be even more common.
Climate Change And Grasshoppers
Climate change is affecting grasshoppers in Idaho. Warmer temperatures can lead to more grasshoppers. They hatch earlier and grow faster. This can make pest problems worse.
Drought also helps grasshoppers. Dry conditions reduce the food for their predators. This allows grasshopper populations to grow. Farmers may need to adapt their management strategies.
Frequently Asked Questions
What is the most common grasshopper in Idaho?
The clear-winged grasshopper is one of the most common. You can find it in grasslands and along roadsides all over the state.
Are there any poisonous grasshoppers in Idaho?
No, there are no poisonous grasshoppers in Idaho. Some species can be toxic to birds if they eat a lot of them, but they are not dangerous to humans.
How can I tell a grasshopper from a cricket?
Grasshoppers have short antennae and make sounds by rubbing their legs against their wings. Crickets have long antennae and make sounds by rubbing their wings together.
Do grasshoppers bite?
Grasshoppers can bite if you handle them, but it is rare. Their jaws are strong enough to chew plants, but they usually do not bite people.
What should I do if I have a grasshopper infestation?
If you have a lot of grasshoppers in your garden or field, you can use insecticidal soap or neem oil. For large areas, you may need to contact your local extension office for advice.
Final Thoughts On Idaho Grasshoppers
Grasshoppers are a big part of Idaho’s natural landscape. They are fascinating to watch and study. By learning about the different types of grasshoppers in Idaho, you can better understand the environment around you.
Whether you are a farmer, a gardener, or just someone who enjoys nature, knowing these insects helps. You can identify them, understand their role, and manage them if needed. Next time you are outside, take a moment to look at the grasshoppers around you. You might be surprised by what you see.