Try for Free
tab list
Picture Insect
English
arrow
English
繁體中文
日本語
Español
Français
Deutsch
Pусский
Português
Italiano
한국어
Nederlands
العربية
Home Application Download FAQ
English
English
繁體中文
日本語
Español
Français
Deutsch
Pусский
Português
Italiano
한국어
Nederlands
العربية
Icon about
About
Icon about
General Info
Icon about
Search Tips
Icon about
Harmful or Not
Icon about
Harmful Effects
Icon about
Beneficial Effects
Icon about
Common FAQs
Icon about
Similar Insects
Icon about
Popular Insects
Cobalt milkweed beetle

Cobalt milkweed beetle

Chrysochus cobaltinus

A species of Chrysochus, Also known as Chrysochus_cobaltinus

The cobalt milkweed beetle (Chrysochus cobaltinus) is named from the beautiful cobalt-blue color that covers its body. Females will lay their eggs on the bottom of milkweed leaves, which is where it gets the other half of the name. In some cases, the larva can skeletonize the plant, which causes its growth to stagnate. In the worst-case scenario, it can even destroy the root systems of the milkweed.

General Info About Cobalt milkweed beetle
Instantly identify insects with a snap
Snap a photo for instant insect ID and risk assessment, gaining quick insights on bite assessment, toxicity, pest control, behavior, habitat, and safe interaction tips, etc.
Download the App for Free
Rectangle
Attributes of Cobalt milkweed beetle
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Cobalt milkweed beetle is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
The Cobalt milkweed beetle is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Pest-Eating Predatory
Not reported
Phytophagous
The Cobalt milkweed beetle feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
qrcode
Img download isoImg download android
Rectangle
Appearance of Cobalt milkweed beetle
Chrysochus cobaltinus has an iridescent cobalt-blue exoskeleton. Both sexes range from 6 - 9 mm in length, with clubbed antenna. The body is oval, although the ventral is not prominently convex.
ImageImageImageImageImage

How to Identify Cobalt milkweed beetle?

Rectangle
Life Cycle of Cobalt milkweed beetle
Egg The eggs of cobalt milkweed beetle are typically oval and may vary in color but are often white or pale. They serve as the protective enclosure for the developing insect and are usually laid in clusters.
Larva Larvae of cobalt milkweed beetle emerge from eggs, resembling small, segmented worms with a distinct head and chewing mouthparts, specialized for feeding voraciously on host plants.
Pupal During the pupal stage, cobalt milkweed beetle undergoes a complete transformation within a protective case, transitioning from larva to adult. The creature inside is largely immobile and vulnerable.
Adult Emerging from the pupa, the adult cobalt milkweed beetle’s development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction.
Rectangle
Adult Size of Cobalt milkweed beetle
6 - 9 mm
Rectangle
Predators of Cobalt milkweed beetle Larvae
Birds, small mammals, reptiles, amphibians, spiders, predatory insects
Rectangle
Predators of Adult Cobalt milkweed beetle
Birds, rodents, small mammals, reptiles, spiders, predatory insects
Rectangle
Interesting Facts About Cobalt milkweed beetle
Cobalt milkweed beetle can emit a squeaking sound when threatened, produced by the friction of its body parts, a behavior known as stridulation.
Rectangle
Scientific Classification of Cobalt milkweed beetle
Tips for Finding Cobalt milkweed beetle
Your ultimate guide to understanding insects
Unlock the secrets of insect life cycles, habitats, behaviors and observation tips!!
Download the App for Free
Rectangle
How Can You Attract Cobalt milkweed beetle
Since cobalt milkweed beetle is known to feed on specific plants, using these as a lure in a trap would be an effective attractant.
Rectangle
Habitat Preferences of Cobalt milkweed beetle Through Different Life Stages
Adult cobalt milkweed beetle are typically found on leaves of milkweed or dogbane during late spring to early fall in various locales across the U.S., such as the eastern states and the Midwest. The larvae prefer the undersides of these host plants' leaves, where they can discretely feed and develop. If searching for them, one should inspect the mentioned plant species in areas such as meadows, fields, and along roadsides. Checking these leaf surfaces and turning them over gently during the appropriate season increases the chances of encountering various stages in their life cycle.
Rectangle
When is the Best Time to Observe Cobalt milkweed beetle
The ideal time to find cobalt milkweed beetle is when they are most active, which is typically during the day, especially in the late morning and early afternoon when temperatures are warmer.
Rectangle
What is the Best Weather to Observe Cobalt milkweed beetle
Mild, sunny weather with low wind is generally best for finding cobalt milkweed beetle as they are more likely to be active and visible on the host plants they feed upon.
Rectangle
How and Where Can You Find Cobalt milkweed beetle at Different Life Stages
Egg Cobalt milkweed beetle eggs are typically laid on the underside of host plant leaves. To find them, inspect these plants, looking closely for small clusters of eggs.
Larva Larval cobalt milkweed beetle are found on or near their host plants. Search the leaves and stems of these plants for the larvae, which may be feeding and are usually more noticeable than the eggs.
Pupal Pupae of cobalt milkweed beetle often form on or in the soil near their host plants. To locate them, scout around the base of these plants, checking for pupae among leaf litter or just beneath the soil surface.
Adult Adult cobalt milkweed beetle are typically found on their host plants. The best way to find them is by directly observing the plants during the day, as adults are likely to be feeding on leaves or mating.
Are Cobalt milkweed beetle harmful?
Your Complete Pest Control Guide
Discover effective tips for preventing and eliminating pest infestations to keep bugs away from your home.
Download the App for Free

Usually, the cobalt milkweed beetle won't threaten or hurt humans. But remember that even a worm will turn. Remember to still be cautious.

Rectangle

Are Cobalt milkweed beetle harmful to humans?

Some colorful leaf beetles are actually toxic, and their beautiful appearance is warning predators: I am very dangerous, do not eat me! However, just observing with your eyes and touching the leaf beetle with your hand will not be poisoned.
Harmful Effects of Cobalt milkweed beetle
Reveal the harmful impacts of diverse insects
Explore the dangers of insects related to toxicity, lethality, human biting, human stinging, pathogenicity, hematophagy, allergenicity, parasitism, etc.
Download the App for Free
Rectangle
Hurt Plant

The cobalt milkweed beetle inflicts damage on host plants through feeding on the leaves, specifically by chewing plant tissues. This results in visible marks and defoliation, which can disrupt the plant's ability to photosynthesize, ultimately leading to reduced plant vigor and growth.

More Effects of Cobalt milkweed beetle

Beneficial Effects of Cobalt milkweed beetle
Discover the hidden benefits of insects
Explore how insects help as pollinators, pest predators, and biocontrol agents. From seed dispersal to decomposition, they play vital roles in our ecosystem.
Download the App for Free
Pollinator
Pollinator
Attract Plant Feature
Color, Smell
Pollination Behavior Reason
Eat Pollen Or Nectar
Cobalt milkweed beetle is drawn to the vivid colors and alluring scents of flowering Asteraceae. It's a mutualistic relationship, where cobalt milkweed beetle consumes pollen while inadvertently transferring it from one flower to another, aiding in plant reproduction.
Common Questions People Also Ask
Get Quick Insect Answers with a Snap
Snap a photo for instant insect ID and answers on bites, toxicity, pest control, behavior, habitat, and safety tips!
Download the App for Free
Other Popular Insects
Western honey bee
Western honey bee

Western honey bee(Apis mellifera) is the most common species of honeybee in the world. Among the first domesticated insects, its cultural and economic impact on humanity has been vast and far-reaching, providing honey, wax and its services as a pollinator. Western honey bee faces challenges worldwide, such as colony collapse disorder, and populations are thought to be decreasing.

Read More
Arrow
Monarch butterfly
Monarch butterfly

The monarch butterfly (Danaus plexippus) is the most recognizable butterfly in North America. It is best known for its appearance, but should be better known for the fact that it has a 3000-mile migration that takes the butterfly 4 generations to complete. Their diet is also a natural deterrent for predators, as they eat milkweed, a poison that induces vomiting.

Read More
Arrow
Japanese rhinoceros beetle
Japanese rhinoceros beetle

The japanese rhinoceros beetle (Trypoxylus dichotomus) is a massive beetle about the size of the palm of a hand. It's distinguished by its long Y-shaped horn, which it uses to fight other males with. It's a nocturnal bug that feeds on sap and sweet fruits. This species is sometimes kept as a pet due to its unique appearance and simple care requirements.

Read More
Arrow
Silkworm
Silkworm

The silken threads produced by silkworm during its larval stage have been highly coveted for millennia, manifesting as a luxurious fabric in human society. Remarkably, this creature has a singular diet, feeding exclusively on the leaves of its primary host plant from which it extracts the necessary nutrients to facilitate its transition into a non-feeding, winged adult.

Read More
Arrow
Menelaus blue morpho
Menelaus blue morpho

Menelaus blue morpho (Morpho menelaus) is a gorgeous butterfly with large, royal blue wings. Linnaeus named the genus Morpho the Aphrodite-Ancient Greek goddess of love and beauty for its extreme beauty. It is native to tropical rainforests. Though many butterfly gardens now cultivate them in captivity, there are still many people who never get a chance to see them.

Read More
Arrow
Atlas moth
Atlas moth

While the atlas moth (Attacus atlas) can't tell you where to find your country on the map, it does earn its name through other means. It is one of the largest moths in the world, with a wingspan that is far larger than its body, creating an abnormal comparison. In India, their silk is gathered in a non-commercial capacity and is considered to be more durable than the domestic silkworm.

Read More
Arrow
Flying peacock spider
Flying peacock spider

Both sexes reach about 5 mm in body length. Females and immatures of both sexes are brown but have color patterns by which they can be distinguished from related species. Also, the males dance to attract females.

Read More
Arrow
Multicolored asian ladybeetle
Multicolored asian ladybeetle

Often confused for the ladybug, multicolored asian ladybeetle (Harmonia axyridis) is a separate species that, unlike the ladybug, is a household pest. It is considered particularly annoying for its habit of returning to places from which it is removed. One of the most variable species in the world, there are many different colors and patterns multicolored asian ladybeetle may display, making identification potentially difficult.

Read More
Arrow