Orius insidiosus

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Orius insidiosus
Orius insidiosus from USDA 2 (cropped).jpg
Orius insidiosus feeding on white fly nymphs
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hemiptera
Family: Anthocoridae
Genus: Orius
Species:
O. insidiosus
Binomial name
Orius insidiosus
(Say, 1832) [1]

Orius insidiosus, common name the insidious flower bug, [2] is a species of minute pirate bug, a predatory insect in the order Hemiptera (the true bugs). They are considered beneficial, as they feed on small pest arthropods and their eggs. [3] [4] They are mass-reared for use in the biological control of thrips. [5]

Contents

Description

Orius insidiosus adults are approximately 3 mm in length. This oval-shaped insect is black with white patches on the wings. [6] Nymphs of this species are teardrop-shaped and wingless. They range from yellow-orange to brown in colour. [6]

Distribution

This species is common throughout the United States, and extends into Canada, Mexico, Central and South America. It also occurs in Cuba, Puerto Rico, and other islands of the West Indies. [7]

Life cycle

The female lays her eggs inside plant tissues, where they hatch into nymphs. Growth time from egg to mature adult takes at least 20 days. It is possible for several generations to occur during a single growing season. [7]

Diet

Orius insidiosus prey on plant-eating (phytophagous) mites and their eggs, various insect eggs, and other soft-bodied arthropods such as thrips, spider mites, and small caterpillars. [6] They also feed on the eggs and new larvae of the bollworm, spotted tobacco aphids, corn earworm, European corn borers (Ostrinia nubilalis), corn leaf aphids (Rhopalosiphum maidis), potato aphids (Macrosiphum euphorbiae), and potato leafhopper (Empoasca fabae) nymphs. [6] [7]

They are used in orchards to help control the European red mite ( Panonychus ulmi ), the twospotted spider mite (Tetranychus urticae), and most species of aphids. [3] [4] Orius insidiosus can also feed on plants and pollen. [4]

Behaviour

Orius insidiosus feeding Orius insidiosus from USDA 1.jpg
Orius insidiosus feeding

Both nymphs and adults feed. The adults are voracious predators and exhibit efficient searching behaviour. They congregate in areas where the density of prey is high. They are also able to propagate more rapidly in environments where prey is abundant. [4]

Orius insidiosus seizes its prey using its front legs and then inserts its long beak into its victim's body. It usually reinserts its beak several times until the soft body of the host has been emptied, leaving behind the drained exoskeleton. [6]

Orius insidiosus occasionally bites humans. Although the bite can be considered disproportionately painful relative to the size of this species, it is not harmful. [8]

Habitat

This species can be found on numerous crops, including most deciduous fruits, grapes, alfalfa, cotton, corn, and soybeans. [4]

See also

Related Research Articles

Hemiptera Order of insects often called bugs

Hemiptera or true bugs are an order of insects comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, bed bugs and shield bugs. They range in size from 1 mm (0.04 in) to around 15 cm (6 in), and share a common arrangement of sucking mouthparts. The name "true bugs" is often limited to the suborder Heteroptera. Many insects commonly known as "bugs", especially in American English, belong to other orders; for example, the lovebug is a fly and the May bug and ladybug are beetles.

<i>Helicoverpa zea</i> Species of moth

Helicoverpa zea, commonly known as the corn earworm, is a species in the family Noctuidae. The larva of the moth Helicoverpa zea is a major agricultural pest. Since it is polyphagous during the larval stage, the species has been given many different common names, including the cotton bollworm and the tomato fruitworm. It also consumes a wide variety of other crops.

Thrips Order of insects

Thrips are minute, slender insects with fringed wings and unique asymmetrical mouthparts. Different thrips species feed mostly on plants by puncturing and sucking up the contents, although a few are predators. Entomologists have described approximately 6,000 species. They fly only weakly and their feathery wings are unsuitable for conventional flight; instead, thrips exploit an unusual mechanism, clap and fling, to create lift using an unsteady circulation pattern with transient vortices near the wings.

Leafhopper Family of insects

A leafhopper is the common name for any species from the family Cicadellidae. These minute insects, colloquially known as hoppers, are plant feeders that suck plant sap from grass, shrubs, or trees. Their hind legs are modified for jumping, and are covered with hairs that facilitate the spreading of a secretion over their bodies that acts as a water repellent and carrier of pheromones. They undergo a partial metamorphosis, and have various host associations, varying from very generalized to very specific. Some species have a cosmopolitan distribution, or occur throughout the temperate and tropical regions. Some are pests or vectors of plant viruses and phytoplasmas. The family is distributed all over the world, and constitutes the second-largest hemipteran family, with at least 20,000 described species.

Blissus leucopterus, also known as the true chinch bug, is a small North American insect in the order Hemiptera and family Blissidae. It is the most commonly encountered species of the genus Blissus, which are all known as chinch bugs. A closely related species is B. insularis, the southern chinch bug.

Cimicomorpha Order of true bugs

The Cimicomorpha are an infraorder of insects in the order Hemiptera, the true bugs. The rostrum and other morphology of all members apparently is adapted to feeding on animals as their prey or hosts. Members include bed bugs, bat bugs, assassin bugs, and pirate bugs.

Mandible (insect mouthpart)

Insect mandibles are a pair of appendages near the insect’s mouth, and the most anterior of the three pairs of oral appendages. Their function is typically to grasp, crush, or cut the insect’s food, or to defend against predators or rivals. Insect mandibles, which appear to be evolutionarily derived from legs, move in the horizontal plane unlike those of vertebrates, which appear to be derived from gill arches and move vertically.

Anthocoridae Family of true bugs

Anthocoridae is a family of bugs, commonly called minute pirate bugs or flower bugs. Worldwide there are 500-600 species.

<i>Orius</i> Genus of true bugs

The genus Orius consists of omnivorous bugs in the family Anthocoridae. Adults are 2–5 mm long and feed mostly on smaller insects, larva and eggs, such as spider mites, thrips, jumping plant lice, and white fly, but will also feed on pollen and vascular sap.

Soybean aphid Species of true bug

The soybean aphid is an insect pest of soybean that is exotic to North America. The soybean aphid is native to Asia. It has been described as a common pest of soybeans in China and as an occasional pest of soybeans in Indonesia, Japan, Korea, Malaysia, the Philippines, and Thailand. The soybean aphid was first documented in North America in Wisconsin in July 2000. Ragsdale et al. (2004) noted that the soybean aphid probably arrived in North America earlier than 2000, but remained undetected for a period of time. Venette and Ragsdale (2004) suggested that Japan probably served as the point of origin for the soybean aphid's North American invasion. By 2003, the soybean aphid had been documented in Delaware, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New York, North Dakota, Ohio, Pennsylvania, South Dakota, Virginia, West Virginia, and Wisconsin. Together, these states accounted for 89% of the 63,600,000 acres (257,000 km2) of soybean planted in the United States in 2007.

<i>Myzus persicae</i> Aphid of peach, potato, other crops

Myzus persicae, known as the green peach aphid, greenfly, or the peach-potato aphid, is a small green aphid belonging to the order Hemiptera. It is the most significant aphid pest of peach trees, causing decreased growth, shrivelling of the leaves and the death of various tissues. It also acts as a vector for the transport of plant viruses such as cucumber mosaic virus (CMV), potato virus Y (PVY) and tobacco etch virus (TEV). Potato virus Y and potato leafroll virus can be passed to members of the nightshade/potato family (Solanaceae), and various mosaic viruses to many other food crops.

<i>Gargaphia solani</i> Species of true bug

Gargaphia solani is a subsocial species of lace bug commonly known as the eggplant lace bug. The species was described by Heidemann in 1914 after it aroused attention a year earlier in the United States as an eggplant pest around Norfolk, Virginia. Fink found that the species became an agricultural pest when eggplant is planted on a large scale.

Neoseiulus cucumeris, the cucumeris mite, is a species of predatory mite in the family Phytoseiidae. It is used in biological pest control of western flower thrips in cucumber and some other greenhouse crops.

<i>Zelus renardii</i> Species of true bug

Zelus renardii, the leaf hopper assassin bug, is a predacious insect contained within tribe Harpactorini. Diurnal and found on both wild and crop plants, Z. renardii has spread from its native habitats in western North and Central America into three other biogeographic regions across the globe.

<i>Coleomegilla maculata</i> Species of beetle

Coleomegilla maculata, commonly known as the spotted lady beetle, pink spotted lady beetle or twelve-spotted lady beetle, is a large coccinellid beetle native to North America. The adults and larvae feed primarily on aphids and the species has been used as a biological control agent. Based on name connotation and to avoid confusion with other species also called "spotted ladybeetle", spotted pink ladybeetle is probably the most appropriate common name for this species.

Dicyphus hesperus is a species of true bug in the family Miridae. It is a generalist predator of other insects and also feeds on plant tissues. It is native to North America and has been used there in biological control of agricultural pests, especially whitefly on tomatoes.

Macrolophus caliginosus is a species of true bug in the family Miridae. It is omnivorous and both preys on insects and feeds on plant tissues. It is used in Europe in the biological control of whitefly in tomatoes grown under glass.

<i>Anthocoris nemoralis</i> Species of true bug

Anthocoris nemoralis is a true bug in the family Anthocoridae. The species is native to Europe and is introduced in North America. It is a predator of aphids, spider mites and jumping plant lice, and is therefore used as a biological pest control agent.

Typhlodromips swirskii, the Swirski mite, is a species of predatory mite in the family Phytoseiidae. It is used in biological pest control of western flower thrips in greenhouse or indoor grown crops.

Deraeocoris brevis is a species of predatory plant bug in the family Miridae. It is native to North America where it feeds on plant pests in apple and pear orchards.

References

  1. "Orius insidiosus (Insidious Flower Bug)". Zipcodezoo.com. Archived from the original on 2010-07-17. Retrieved 2010-09-14.
  2. "insidious flower bug, Orius insidiosus (Hemiptera: Anthocoridae)". Insectimages.org. 2010-05-04. Retrieved 2010-09-14.
  3. 1 2 "Minute Pirate Bugs | Iowa Insect Information Notes". Ipm.iastate.edu. Retrieved 2010-09-15.
  4. 1 2 3 4 5 "Orius". Virginiafruit.ento.vt.edu. Retrieved 2010-09-15.
  5. On intra-guild predation and cannibalism in Orius insidiosus and Orius laevigatus (Rhynchota Anthocoridae): laboratory experiments
  6. 1 2 3 4 5 "Orius tristicolor and O. insidiosus". Cornell University . Retrieved 2010-09-15.
  7. 1 2 3 "Midwest Biological Control News". Entomology.wisc.edu. Archived from the original on 2010-07-07. Retrieved 2010-09-15.
  8. "Have a thick skin when it comes to Insidious Flower Bugs - What's Hot at the P&PDL! - Plant & Pest Diagnostic Laboratory, Purdue University". Ppdl.purdue.edu. 2010-09-02. Archived from the original on 2010-06-24. Retrieved 2010-09-15.

Further reading