"instars"

#12602758

1 August 2025

The Brushlegged Mayfly (Ephemeroptera) is in Old Quebec City, Quebec, Canada, on June 26, 2025. Mayflies are unique among insects in that they moult one more time after acquiring functional wings; this is also known as the alate stage. This last-but-one winged instar usually lives a very short time, often a matter of hours, and is known as a subimago or, to fly fishermen, as a dun. Mayflies in this stage are a favorite food of many fish, and many fishing flies are modeled to resemble them. The adult mayflies are short-lived, from a few minutes to a few days depending on the species. About 2,500 species of mayflies are known worldwide, including about 630 species in North America.

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#12523777

3 July 2025

The Brushlegged Mayfly (Ephemeroptera) is in Old Quebec City, Quebec, Canada. Mayflies are unique among insects because they moult one more time after acquiring functional wings, known as the alate stage. This penultimate winged instar usually lives a very short time, often a matter of hours, and is known as a subimago or, to fly fishermen, as a dun. Mayflies in this stage are a favorite food of many fish, and many fishing flies are modeled to resemble them. The adult mayflies are short-lived, from a few minutes to a few days, depending on the species. About 2,500 species of mayflies are known worldwide, including about 630 species in North America.

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#11616811

28 September 2024

The ''Bamboo Bug'' or ''Bamboo Coreid,'' Cloresmus modestus, is a species of diurnal true bug in the leaf-footed bug family. It is considered a serious pest of bamboo shoots in China, India, Myanmar, Vietnam, and Singapore. This true bug feeds on the sap of bamboo, potentially causing damage by extracting nutrients and hindering growth. The antennae of the nymphal instars and adults play a role in communication among individuals and in locating host plants. This photo was taken in a house at Tehatta, West Bengal, India, on 28th September 2024.

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#11616815

28 September 2024

The ''Bamboo Bug'' or ''Bamboo Coreid,'' Cloresmus modestus, is a species of diurnal true bug in the leaf-footed bug family. It is considered a serious pest of bamboo shoots in China, India, Myanmar, Vietnam, and Singapore. This true bug feeds on the sap of bamboo, potentially causing damage by extracting nutrients and hindering growth. The antennae of the nymphal instars and adults play a role in communication among individuals and in locating host plants. This photo was taken in a house at Tehatta, West Bengal, India, on 28th September 2024.

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#11616816

28 September 2024

The ''Bamboo Bug'' or ''Bamboo Coreid,'' Cloresmus modestus, is a species of diurnal true bug in the leaf-footed bug family. It is considered a serious pest of bamboo shoots in China, India, Myanmar, Vietnam, and Singapore. This true bug feeds on the sap of bamboo, potentially causing damage by extracting nutrients and hindering growth. The antennae of the nymphal instars and adults play a role in communication among individuals and in locating host plants. This photo was taken in a house at Tehatta, West Bengal, India, on 28th September 2024.

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#11616817

28 September 2024

The ''Bamboo Bug'' or ''Bamboo Coreid,'' Cloresmus modestus, is a species of diurnal true bug in the leaf-footed bug family. It is considered a serious pest of bamboo shoots in China, India, Myanmar, Vietnam, and Singapore. This true bug feeds on the sap of bamboo, potentially causing damage by extracting nutrients and hindering growth. The antennae of the nymphal instars and adults play a role in communication among individuals and in locating host plants. This photo was taken in a house at Tehatta, West Bengal, India, on 28th September 2024.

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#11616818

28 September 2024

The ''Bamboo Bug'' or ''Bamboo Coreid,'' Cloresmus modestus, is a species of diurnal true bug in the leaf-footed bug family. It is considered a serious pest of bamboo shoots in China, India, Myanmar, Vietnam, and Singapore. This true bug feeds on the sap of bamboo, potentially causing damage by extracting nutrients and hindering growth. The antennae of the nymphal instars and adults play a role in communication among individuals and in locating host plants. This photo was taken in a house at Tehatta, West Bengal, India, on 28th September 2024.

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#11616819

28 September 2024

The ''Bamboo Bug'' or ''Bamboo Coreid,'' Cloresmus modestus, is a species of diurnal true bug in the leaf-footed bug family. It is considered a serious pest of bamboo shoots in China, India, Myanmar, Vietnam, and Singapore. This true bug feeds on the sap of bamboo, potentially causing damage by extracting nutrients and hindering growth. The antennae of the nymphal instars and adults play a role in communication among individuals and in locating host plants. This photo was taken in a house at Tehatta, West Bengal, India, on 28th September 2024.

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#11616820

28 September 2024

The ''Bamboo Bug'' or ''Bamboo Coreid,'' Cloresmus modestus, is a species of diurnal true bug in the leaf-footed bug family. It is considered a serious pest of bamboo shoots in China, India, Myanmar, Vietnam, and Singapore. This true bug feeds on the sap of bamboo, potentially causing damage by extracting nutrients and hindering growth. The antennae of the nymphal instars and adults play a role in communication among individuals and in locating host plants. This photo was taken in a house at Tehatta, West Bengal, India, on 28th September 2024.

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#11351661

22 June 2024

A grasshopper (Melanoplus femurrubrum) (3rd instar nymph) is sitting on a black-eyed Susan flower in Markham, Ontario, Canada, on August 09, 2023.

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#11351662

22 June 2024

A grasshopper (Melanoplus femurrubrum) (3rd instar nymph) is sitting on a black-eyed Susan flower in Markham, Ontario, Canada, on August 09, 2023.

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#11351663

22 June 2024

A grasshopper (Melanoplus femurrubrum) (3rd instar nymph) is sitting on a black-eyed Susan flower in Markham, Ontario, Canada, on August 09, 2023.

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#11103649

28 March 2024

Cabbage loopers (Trichoplusia ni) are members of the Noctuidae family of owlet moths, found throughout the United States, Canada, India, and Mexico. The cabbage looper caterpillar is medium-sized, green, and feeds on leaves. It can grow up to 1.5 inches long and exhibits a distinctive looping movement when mature. Caterpillars initially hatch off-white and become pale green with distinct white stripes down each side and four light stripes down the back. They go through 5-7 instars, reaching 1.5 inches at maturity. Known as a typical ''measuring'' worm, the caterpillar arches its body into a loop as it crawls. Cabbage loopers are a serious pest, mainly affecting cruciferous plants such as cabbage, broccoli, cauliflower, and Brussels sprouts. They create ragged holes in leaves and can bore through, contaminating heads and leaves with their bodies and frass. Early instars scrape the leaf surfaces, while later instars chew progressively larger holes. Cabbage loopers are not toxic and are generally not a threat to human health. A cabbage looper caterpillar was observed sitting and camouflaging on a lemon leaf in the morning at Tehatta, West Bengal, India, on 28/03/2024.

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#11103650

28 March 2024

Cabbage loopers (Trichoplusia ni) are members of the Noctuidae family of owlet moths, found throughout the United States, Canada, India, and Mexico. The cabbage looper caterpillar is medium-sized, green, and feeds on leaves. It can grow up to 1.5 inches long and exhibits a distinctive looping movement when mature. Caterpillars initially hatch off-white and become pale green with distinct white stripes down each side and four light stripes down the back. They go through 5-7 instars, reaching 1.5 inches at maturity. Known as a typical ''measuring'' worm, the caterpillar arches its body into a loop as it crawls. Cabbage loopers are a serious pest, mainly affecting cruciferous plants such as cabbage, broccoli, cauliflower, and Brussels sprouts. They create ragged holes in leaves and can bore through, contaminating heads and leaves with their bodies and frass. Early instars scrape the leaf surfaces, while later instars chew progressively larger holes. Cabbage loopers are not toxic and are generally not a threat to human health. A cabbage looper caterpillar was observed sitting and camouflaging on a lemon leaf in the morning at Tehatta, West Bengal, India, on 28/03/2024.

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#11103651

28 March 2024

Cabbage loopers (Trichoplusia ni) are members of the Noctuidae family of owlet moths, found throughout the United States, Canada, India, and Mexico. The cabbage looper caterpillar is medium-sized, green, and feeds on leaves. It can grow up to 1.5 inches long and exhibits a distinctive looping movement when mature. Caterpillars initially hatch off-white and become pale green with distinct white stripes down each side and four light stripes down the back. They go through 5-7 instars, reaching 1.5 inches at maturity. Known as a typical ''measuring'' worm, the caterpillar arches its body into a loop as it crawls. Cabbage loopers are a serious pest, mainly affecting cruciferous plants such as cabbage, broccoli, cauliflower, and Brussels sprouts. They create ragged holes in leaves and can bore through, contaminating heads and leaves with their bodies and frass. Early instars scrape the leaf surfaces, while later instars chew progressively larger holes. Cabbage loopers are not toxic and are generally not a threat to human health. A cabbage looper caterpillar was observed sitting and camouflaging on a lemon leaf in the morning at Tehatta, West Bengal, India, on 28/03/2024.

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#11070288

12 March 2024

Cabbage loopers (Trichoplusia ni) are members of the Noctuidae family of owlet moths found throughout the United States, Canada, India, and Mexico. The cabbage looper caterpillar is medium-sized, green, and feeds on leaves. It can grow up to 1.5 inches long and has a distinctive looping movement when mature. Caterpillars initially hatch off-white and become pale green with distinct white stripes down each side and four light stripes down the back. They go through 5-7 instars, reaching 1 1/2 inches at maturity. Known as a typical ''measuring'' worm, the caterpillar arches its body into a loop as it crawls. Cabbage loopers are a serious pest mainly affecting cruciferous plants such as cabbage, broccoli, cauliflower, and Brussels sprouts. They create ragged holes in leaves and can bore through, contaminating heads and leaves with their bodies and frass. Early instars scrape the leaf surfaces, while later instars chew progressively larger holes. Cabbage loopers are not toxic and are generally not a threat to human health. An incident involving an insect climbing on a human hand wearing a shakha (white bangle made from a conch shell) and pola (red coral bangle) occurred at Tehatta, West Bengal, India, on March 11, 2024.

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