|Family:|| Noctuidae |
| Noctua pronuba |
|About 11,772 species|
The Noctuidae, commonly known as owlet moths, cutworms or armyworms, are the most controversial family in the superfamily Noctuoidea because many of the clades are constantly changing, along with the other families of the Noctuoidea.It was considered the largest family in Lepidoptera for a long time, but after regrouping Lymantriinae, Catocalinae and Calpinae within the family Erebidae, the latter holds this title now. Currently, Noctuidae is the second largest family in Noctuoidea, with about 1,089 genera and 11,772 species. However, this classification is still contingent, as more changes continue to appear between Noctuidae and Erebidae.
Adult: Most noctuid adults have drab wings, but some subfamilies such as Acronictinae and Agaristinae are very colorful, especially those from tropical regions (e.g. Baorisa hieroglyphica). They are characterized by a structure in the metathorax called the nodular sclerite or epaulette, which separates the tympanum and the conjunctiva in the tympanal organ. It functions to keep parasites (Acari) out of the tympanal cavity. Another characteristic in this group is trifine hindwing venation, by reduction or absence of the second medial vein (M2).
Larva: Commonly green or brown; however, some species present bright colors, such as the camphorweed cucullia moth (Cucullia alfarata). Most are pudgy and smooth with rounded short heads and few setae, but there are some exceptions in some subfamilies (e.g. Acronictinae and Pantheinae).
Pupa: The pupae most often range from shiny brown to dark brown. When they newly pupate they are bright brownish orange, but after a few days start to get darker.
Eggs: Vary in colors, but all have a spherical shape.
The word Noctuidae is derived from the name of the type genus Noctua, which is the Latin name for the little owl, and the patronymic suffix -idae used typically to form taxonomic family names in animals.
The common name "owlet" originally means a small or young owl. The names "armyworms" and "cutworms" are based on the behavior of the larvae of this group, which can occur in destructive swarms and cut the stems of plants.
This family is cosmopolitan and can be found worldwide except in the Antarctic region. However, some species such as the setaceous Hebrew character ( Xestia c-nigrum ) can be found in the Arctic Circle, specifically in the Yukon territory of western Canada, with an elevation 1,702 m above sea level, where the temperature fluctuates between 23/-25 °C (73/-13 °F). Many species of dart moths have been recorded in elevations as high as 4,000 m above sea level (e.g. Xestia elisabetha ). Among the places where the number of species has been counted are North America and northern Mexico, with about 2,522 species. 1,576 species are found in Europe, while the other species are distributed worldwide.
Members of Noctuidae, like other butterflies and moths, perform an important role in plant pollination. However, some species have developed a stronger connection with their host plants. For example, the lychnis moth ( Hadena bicruris ) has a strange mutualistic relationship with pink plants or carnation plants (Caryophyllaceae), in that larvae feed on the plant while the adults pollinate the flowers.
Herbivory: Caterpillars of most Noctuidae feed on plants; some feed on poisonous plants and are unaffected by their chemical defences; for example, the splendid brocade moth ( Lacanobia splendens ) feeds on cowbane ( Cicuta virosa ), a plant that is notoriously toxic to vertebrates.
Predation and cannibalism: During the larval stage, some cutworms readily feed on other insects. One such species is the shivering pinion ( Lithophane querquera ), whose larvae commonly feed on other lepidopteran larvae.Moreover, many noctuid larvae, such as those of the fall armyworm ( Spodoptera frugiperda ) and of genera such as Heliothis and Helicoverpa , aggressively eat their siblings and often other species of caterpillar.
Nectarivory and puddling: Like many Lepidoptera, many species of adult Noctuidae visit flowers for their nectar. They also seek other liquid food resources such as plant juices, honeydew, dung, urea and mud, among others.
As is common in members of the order Lepidoptera, courtship in many Noctuidae includes a set of movements in which the female evaluates the male's reproductive fitness.
Most noctuid moths produce pheromones that attract the opposite gender. Female pheromones that attract males occur widely and have long been studied, but the study of male pheromones has further to go.
Noctuid moths commonly begin the reproductive season from spring to fall, and mostly are multivoltine, such as the eastern panthea moth ( Panthea furcilla ), which reproduces over the year.Nevertheless, some species have just one brood of offspring (univoltine); among the best known is the lesser yellow underwing ( Noctua comes ).
This group has a wide range of both chemical and physical defenses. Among the chemical defenses three types stand out. First, the pyrrolizidine alkaloid sequestration usually present in Arctiinae is also found in a few species of noctuids, including the Spanish moth ( Xanthopastis timais ).Another chemical defense is formic acid production, which was thought to be present only in Notodontidae, but later was found in caterpillars of Trachosea champa . Finally, the last type of chemical defense is regurgitation of plant compounds, often used by many insects, but the cabbage palm caterpillar ( Litoprosopus futilis ) produces a toxin called toluquinone that deters predators.
On the other hand, the main physical defense in caterpillars and adults alike is mimicry. Most owlet moths have drab colors with a variety of patterns suitable to camouflage their bodies.The second physical defense consists in thousands of secondary setae that surround the body. The subfamilies that present this mechanism are Pantheinae and Acronictinae. The third is aposematism, represented by species of Cucullinae. Finally, all adults have another mechanism for defense: a tympanal organ available to hear the echolocation spread out by bats, so the moths can avoid them.
Many species of owlet moths are considered an agricultural problem around the world. Their larvae are typically known as "cutworms" or "armyworms" due to enormous swarms that destroy crops, orchards and gardens every year. The Old World bollworm ( Helicoverpa armigera ) produces losses in agriculture every year that exceed US$2 billion.Additionally, the variegated cutworm ( Peridroma saucia ) is described by many as one of the most damaging pests to vegetables.
In West Africa, species including Busseola fusca , Heliocheilus albipunctella , Sesamia calamistis , Helicoverpa armigera , and Spodoptera exempta are major pests of staple crops such as pearl millet, sorghum, and maize.
Since molecular analysis began to play a larger role in systematics, the structure of many Lepidoptera groups has been changing and Noctuidae is not an exception. Most recent studies have shown that Noctuidae sensu stricto is a monophyletic group, mainly based on trifine venation. However, there are some clades within Noctuidae sensu lato that have to be studied. This taxonomic division represent the subfamilies, tribes and subtribes considered so far.
Genera with intervening taxonomy not available include:
Noctuoidea is the superfamily of noctuid or "owlet" moths, and has more than 70,000 described species, the largest number of for any Lepidopteran superfamily. Its classification has not yet reached a satisfactory or stable state. Since the end of the 20th century, increasing availability of molecular phylogenetic data for this hugely successful radiation has led to several competing proposals for a taxonomic arrangement that correctly represents the relationships between the major lineages.
The African armyworm, also called okalombo, kommandowurm, or nutgrass armyworm, is a species of moth of the family Noctuidae. The larvae often exhibit marching behavior when traveling to feeding sites, leading to the common name "armyworm". The caterpillars exhibit density-dependent polyphenism where larvae raised in isolation are green, while those raised in groups are black. These phases are termed solitaria and gregaria, respectively. Gregaria caterpillars are considered very deleterious pests, capable of destroying entire crops in a matter of weeks. The larvae feed on all types of grasses, early stages of cereal crops, sugarcane, and occasionally on coconut. The solitaria caterpillars are less active and undergo much slower development. The species is commonly found in Africa, but can also be seen in Yemen, some Pacific islands, and parts of Australia. African armyworm outbreaks tend to be devastating for farmland and pasture in these areas, with the highest-density outbreaks occurring during the rainy season after periods of prolonged drought. During the long dry seasons ("off-season"), the population densities are very low and no outbreaks are seen.
Apamea is a genus of moths in the family Noctuidae first described by Ferdinand Ochsenheimer in 1816.
Agrotis is a genus of moths of the family Noctuidae. The genus was erected by Ferdinand Ochsenheimer in 1816. A number of the species of this genus are extinct.
The Calpinae are a subfamily of moths in the family Erebidae described by Jean Baptiste Boisduval in 1840. This subfamily includes many species of moths that have a pointed and barbed proboscis adapted to piercing the skins of fruit to feed on juice, and in the case of the several Calyptra species of vampire moths, to piercing the skins of mammals to feed on blood. The subfamily contains some large moths with wingspans longer than 5 cm (2 in).
Chytolita is a monotypic litter moth genus of the family Erebidae erected by Augustus Radcliffe Grote in 1873. Its only species, Chytolita morbidalis, the morbid owlet moth or morbid owlet, was first described by Achille Guenée in 1854. It is found in large parts of North America, from coast to coast in the north and south to North Carolina, Texas and Florida in the west. The habitat consists of deciduous woods and edges.
Zanclognatha is a genus of litter moths of the family Erebidae. The genus was erected by Julius Lederer in 1857.
Isogona is a genus of moths of the family Erebidae. The genus was erected by Achille Guenée in 1852.
Drasteria is a genus of moths in the family Erebidae.
Spodoptera is a genus of moths of the family Noctuidae erected by Achille Guenée in 1852. Many are known as pest insects. The larvae are sometimes called armyworms. The roughly thirty species are distributed across six continents.
Spodoptera mauritia, the lawn armyworm or paddy swarming caterpillar, is a moth of the family Noctuidae. The species was first described by Jean Baptiste Boisduval in 1833. Able to eat many types of food, it is a major pest throughout the world.
The Erebinae are a subfamily of moths in the family Erebidae erected by William Elford Leach in 1815. Erebine moths are found on all continents except Antarctica, but reach their greatest diversity in the tropics. While the exact number of species belonging to the Erebinae is not known, the subfamily is estimated to include around 10,000 species. Some well-known Erebinae include underwing moths (Catocala) and witch moths (Thermesiini). Many of the species in the subfamily have medium to large wingspans, up to nearly 30 cm in the white witch moth, which has the widest wingspan of all Lepidoptera. Erebine caterpillars feed on a broad range of plants; many species feed on grasses and legumes, and a few are pests of castor bean, sugarcane, rice, as well as pistachios and blackberries.
The Micronoctuini are a tribe of moths in the family Erebidae that includes about 400 described species. Typical species in the tribe have bifine hindwing venation and are smaller than those in other noctuoid moths. Micronoctua karsholti is the smallest of all species in the superfamily Noctuoidea.
The Rivulinae are a subfamily of moths in the family Erebidae described by Augustus Radcliffe Grote in 1895. Caterpillars in the subfamily typically have long, barbed hairs and have full prolegs on abdominal segments 3 through 6. The adults have a unique microsculpturing proboscis.
Stiriina is a subtribe of owlet moths in the family Noctuidae. There are at least 50 described species in Stiriina.
Stiriini is a tribe of owlet moths in the family Noctuidae. There are at least 120 described species in Stiriini.
Noctuina is a subtribe of cutworm or dart moths in the family Noctuidae. There are at least 170 described species in Noctuina.
Noctuini is a tribe of owlet moths in the family Noctuidae. There are at least 520 described species in Noctuini.
Sympistis infixa, the broad-lined sallow moth, is a moth in the family Noctuidae. It was described by Francis Walker in 1856 and is found in North America.
Spodoptera androgea, the androgea armyworm moth, is a species of cutworm or dart moth in the family Noctuidae. It is found in North America.