Hemiptera is an order of insects, commonly called true bugs, comprising over 80,000 species within groups such as the cicadas, aphids, planthoppers, leafhoppers, assassin bugs, 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 piercing-sucking mouthparts. The name "true bugs" is often limited to the suborder Heteroptera.
Mites are small arachnids. Mites span two large orders of arachnids, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari. However, most recent genetic analyses do not recover the two as each other's closest relative within Arachnida, rendering the group non-monophyletic. Most mites are tiny, less than 1 mm (0.04 in) in length, and have a simple, unsegmented body plan. The small size of most species makes them easily overlooked; some species live in water, many live in soil as decomposers, others live on plants, sometimes creating galls, while others are predators or parasites. This last type includes the commercially destructive Varroa parasite of honey bees, as well as scabies mites of humans. Most species are harmless to humans, but a few are associated with allergies or may transmit diseases.
The small tortoiseshell is a colourful Eurasian butterfly in the family Nymphalidae. Adults feed on nectar and may hibernate over winter; in warmer climates they may have two broods in a season. While the dorsal surface of the wings is vividly marked, the ventral surface is drab, providing camouflage. Eggs are laid on the common nettle, on which the larvae feed.
Tetranychus urticae is a species of plant-feeding mite generally considered to be a pest. It is the most widely known member of the family Tetranychidae or spider mites. Its genome was fully sequenced in 2011, and was the first genome sequence from any chelicerate.
Spider mites are members of the Tetranychidae family, which includes about 1,200 species. They are part of the subclass Acari (mites). Spider mites generally live on the undersides of leaves of plants, where they may spin protective silk webs, and can cause damage by puncturing the plant cells to feed. Spider mites are known to feed on several hundred species of plants.
Withania somnifera, known commonly as ashwagandha or winter cherry, is an evergreen shrub in the Solanaceae or nightshade family that grows in India, the Middle East, and parts of Africa. Several other species in the genus Withania are morphologically similar.
The Acariformes, also known as the Actinotrichida, are the more diverse of the two superorders of mites. Over 32,000 described species are found in 351 families, with an estimated total of 440,000 to 929,000 species, including undescribed species.
Feltiella acarisuga is a species of predatory gall midges which will feed on various species of spider mites. It is especially common when spider mites occur in colonies. It requires a high spider mite density and high humidities to become established.
Prostigmata is a suborder of mites belonging to the order Trombidiformes, which contains the "sucking" members of the "true mites" (Acariformes).
Trombidiidae, also known as red velvet mites, true velvet mites, or rain bugs, are small arachnids found in plant litter and are known for their bright red color.
Trombidium holosericeum is a species of mite in the genus Trombidium. It occurs in Europe, Asia, and Africa and is commonly confused with other red mite species.
Orius insidiosus, common name the insidious flower bug, is a species of minute pirate bug, a predatory insect in the order Hemiptera. They are considered beneficial, as they feed on small pest arthropods and their eggs. They are mass-reared for use in the biological control of thrips.
Neoseiulus californicus is a predatory mite that feeds on Tetranychid mites. This species was first described on lemons from California under the name Typhlodromus californicus in 1954.
Macrodinychus multispinosus is a mite that lives as an ectoparasitoid on the invasive Paratrechina longicornis. These mites complete their development on a single host, sucking all of its body content and therefore killing it. This is the ninth species of Macrodinychus reported as ant parasite, and the third known as parasitoid of invasive ants, confirming a unique habit in the evolution of mite feeding strategies and suggesting that the entire genus might be parasitic on ants.
Isaria fumosorosea is an entomopathogenic fungus, formerly known as Paecilomyces fumosoroseus. It shows promise as a biological pesticide with an extensive host range.
Pyemotidae is a family of mostly parasitic mites that feed on the larvae and other developmental stages of various insects but some species are herbivorous or fungivorous.
Dinothrombium is a genus of mites belonging to the family Trombidiidae, which are commonly known as red velvet mites. As suggested by the name, Dinothrombium are covered in fine hairs and they are bright red, sometimes with markings in paler colors. Their bright colours appear to be aposematic, hinting at their unpleasant taste and smell. They are generally fairly large for their family and the African D. tinctorum, where adults typically are 12–14 mm (0.47–0.55 in), is one of the largest known species of red velvet mites. Dinothrombium are found in all the world's continents, except Antarctica, often in dry areas, where they spend most of the time underground in the soil or sand, emerging after heavy rain. During this time, they can be conspicuous and numerous.
Oligonychus pratensis, the Banks grass mite, is a species of mite in the spider mite family. They are considered a pest and often infest corn and turf grasses.
