Poaceae
Guides
Amphipogon
greybeard grasses
Amphipogon, commonly known as greybeard grasses, is a genus of perennial grasses endemic to Australia. The genus belongs to the grass family Poaceae and is characterized by its distinctive inflorescences with hairy or bearded spikelets. Species within this genus are adapted to Australian temperate and Mediterranean climates, often occurring in woodland and forest understories.
Astictoneura
Astictoneura is a genus of gall midges (family Cecidomyiidae) containing at least two described species. The genus was established by Gagné in 1969. Species in this genus are associated with grasses in the family Poaceae.
Balclutha jafara
Balclutha jafara is a leafhopper species native to Africa that was introduced to the Western Hemisphere by 2019. First detected in southern Florida in 2020 and in Colombian shipments entering the United States in 2019, it was previously known only from the Seychelles and Aldabra Islands. The species has since been documented across a broader African range including Kenya, South Africa, South Sudan, Zambia, and Zimbabwe. Molecular analysis using COI barcodes confirmed its identity and revealed connections between populations on multiple continents.
Collaria
grass bugs
Collaria is a genus of grass-feeding plant bugs (Miridae: Mirinae: Stenodemini) established by Provancher in 1872. The genus comprises 14 recognized species distributed across the Neotropical and Afrotropical regions, with several species documented as agricultural pests of forage grasses and wheat. Species such as C. scenica and C. columbiensis have been studied extensively in Colombia, where they impact dairy production in the Bogotá plateau region. The genus is characterized by its association with Poaceae (grasses) and its potential for significant population increases under favorable climatic conditions, particularly during El Niño events.
Miridaegrass-bugpasture-pestagricultural-pestNeotropicalAfrotropicalColombiaclimate-sensitivityEl-NiñoEPGelectrical-penetration-graphspatial-distributionaggregated-distributionPoaceaewheat-pestdairy-productionintegrated-pest-managementStenodeminiProvancher-1872taxonomygenitalic-morphologyheat-unitsthermal-amplitudeprecipitation-dependentBogotá-plateauAltiplano-CundiboyacenseC.-scenicaC.-columbiensisC.-schwartziC.-oleosaC.-bolivianaC.-villiersiC.-improvisaC.-obscuricornisCrambini
Grass-Veneers
Crambini is a tribe of moths within the subfamily Crambinae, commonly known as Grass-Veneers. The tribe includes over 1,800 species worldwide. Larvae are predominantly root feeders or stem borers, with many species associated with grasses. The tribe is distinguished by tympanal organ structure and the phallus attached medially to the juxta.
Diplocolenus
Diplocolenus is a genus of leafhoppers (Cicadellidae: Deltocephalinae) established by Ribaut in 1946. The genus comprises at least two subgenera: Diplocolenus s. str. and Verdanulus Emeljanov. Species within this genus are associated with steppe habitats and grassland ecosystems. Some species exhibit host-plant specificity, with at least one species documented as monophagous on a particular grass species.
Elachista freyerella
Elachista freyerella is a small moth in the family Elachistidae, described by Hübner in 1825. The species is widespread across Europe (excluding the Balkan Peninsula) and occurs in North America. It is a grass-mining species whose larvae develop within the leaves of various Poaceae hosts.
Elachistinae
grass-miner moths
Elachistinae is a subfamily of small moths in the family Elachistidae, superfamily Gelechioidea. The subfamily contains approximately 805 valid species placed in 10 genera, with the genus Elachista being the most diverse. Species are predominantly leaf miners, with larvae feeding on monocotyledonous plants, especially sedges (Cyperaceae) and grasses (Poaceae). The subfamily has a worldwide distribution with significant diversity in the Holarctic region. Many species show narrow host plant associations and some exhibit vicariant distribution patterns.
Elymana
Elymana is a genus of leafhoppers (Cicadellidae) established by DeLong in 1936. Species occur in Europe and North America, with at least one European species (E. sulphurella) introduced to North America. The genus includes grass-feeding species with documented host plant associations in Poaceae. Taxonomic revisions have synonymized several previously described species.
Labops
grass bugs, black grass bugs
Labops is a genus of plant bugs in the family Miridae containing approximately 13 described species. Species within this genus are commonly known as grass bugs or black grass bugs and are associated with grassland habitats. Labops hesperius, the most studied species, is a significant pest of rangeland grasses in western North America. The genus is characterized by its association with Poaceae hosts and its economic impact on seed production in range and forage grasses.
Metopolophium dirhodum
rose-grain aphid, rose-grass aphid
Metopolophium dirhodum is a globally distributed aphid species with a heteroecious life cycle alternating between rose (Rosa) as primary host and grasses, particularly cereal crops, as secondary hosts. It is a significant agricultural pest and vector of barley yellow dwarf virus (BYDV), causing yield reductions in wheat, barley, oats, and rye. The species exhibits wing dimorphism with both apterous and alate morphs, and shows genetic variability in host plant adaptation among populations.
Opomyzidae
Grass Flies
Opomyzidae is a family of acalyptrate Diptera commonly known as grass flies. Adults are small, slender flies ranging from yellow to brown, reddish, or black. Larvae are stem-borers in grasses (Poaceae), including cereal crops, with some species causing significant agricultural damage. The family is distributed primarily in temperate regions of the boreal hemisphere, with an autumn-spring life cycle adapted to grass phenology.
Paromius
dirt-colored seed bugs
Paromius is a genus of seed bugs in the family Rhyparochromidae containing approximately 15 described species. Members are elongate, parallel-sided bugs with glabrous integument and distinctive pronotal structure. The genus has broad geographic distribution spanning the Afrotropical region and subtropical Eurasia, with at least one species extending into temperate Europe. Some species are associated with grasses (Poaceae) and can be agricultural pests, while others occupy dry, xerothermic habitats.
Pemphigus populiglobuli
poplar bullet gall aphid
Pemphigus populiglobuli is a Nearctic aphid species known for forming bullet-shaped galls on poplar leaves during its primary generation. The Svalbard High Arctic population represents a remarkable secondary generation that has lost its primary host association and adapted to year-round root-feeding on grasses. Molecular analyses confirmed these specimens belong to P. populiglobuli rather than the historically assumed P. groenlandicus. The study proposes synonymizing P. groenlandicus and its subspecies crassicornis under P. populiglobuli based on morphometric similarity across Arctic and European populations.
Plateumaris
spade reed beetles
Plateumaris is a genus of aquatic leaf beetles in the family Chrysomelidae, subfamily Donaciinae, distributed across the Holarctic region. The genus comprises approximately 27 species globally, with 17 described in North America and 10 in the Palaearctic. Adults are found along margins of water bodies on emergent aquatic plants, while larvae develop submerged on plant roots. Species are recognized by diagnostic morphological features including the lack of pubescence above the procoxa and rounded, declivous elytral apices with a sinuate sutural area. Females possess a strongly sclerotized, shovel-like ovipositor that often protrudes from the abdomen, giving rise to the common name "spade reed beetles".
Simplicia
Simplicia is a genus of monocotyledonous plants in the grass family (Poaceae), first described by Thomas Kirk in 1896. The genus is accepted in botanical nomenclature and is classified within the order Poales. It is native to New Zealand, where it represents a distinctive element of the native grass flora.
Stenispa metallica
Black Smooth Hispine
Stenispa metallica is a species of hispine beetle in the family Chrysomelidae. Adults are characterized by a shining black body with an obscure metallic tinge. The species has been recorded from a broad range of states in the eastern and central United States, as well as from Mexico. Larval development is associated with sedges and grasses, with Scirpus atrovirens documented as a confirmed host plant.
Stenotus
plant bug
Stenotus is a genus of plant bugs in the family Miridae, comprising species that are primarily associated with grasses and cereal crops. The genus includes notable agricultural pests, particularly Stenotus rubrovittatus (sorghum plant bug or pecky rice bug), which causes significant damage to rice and other Poaceae. Species in this genus exhibit specialized host plant relationships and distinct reproductive behaviors tied to plant phenology.
Tetramesa
Tetramesa is a genus of minute phytophagous wasps in the family Eurytomidae comprising over 200 described species. Members are exclusively associated with grasses (Poaceae), where they typically induce stem or inflorescence galls. The genus exhibits pronounced host specificity, with most species restricted to a single grass species or closely related congeners. Several species have been deployed as biological control agents against invasive grasses, including T. romana for giant reed (Arundo donax) and candidate agents for medusahead (Taeniatherum caput-medusae) and African lovegrass (Eragrostis curvula). Adults feed on nectar. Recent phylogenomic studies have synonymized the genera Aiolomorphus and Cathilaria within Tetramesa.
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nigriabdominalis
Tetraneura nigriabdominalis is a holocyclic, heteroecious gall-forming aphid native to East Asia that has expanded its range globally and is now established in Europe and North America. The species alternates between primary hosts (elm trees, genus Ulmus) and secondary hosts (roots of grasses in the family Poaceae, including maize). On elms, fundatrices induce characteristic galls on leaves, with development rates and fecundity strongly influenced by spring temperatures. The species has been documented as a potential agricultural pest due to its association with cultivated maize.
Trigonotylus
rice leaf bug
Trigonotylus is a genus of plant bugs in the family Miridae, tribe Stenodemini, containing approximately 18 described species. The genus has a cosmopolitan distribution with species in North America, Europe, Asia, and Hawaii. Several species are associated with grasses (Poaceae), with T. caelestialium being a significant agricultural pest of rice in Japan. The genus exhibits variation in host plant use, oviposition behavior, and seasonal life history strategies.
Trigonotylus caelestialium
Rice Leaf Bug
Trigonotylus caelestialium is a mirid plant bug known as the rice leaf bug, native to Europe, Northern Asia (excluding China), and North America. It is a multivoltine pest of rice in Japan, where it causes pecky-rice damage by feeding on developing grains. The species has a broad host range within Poaceae, utilizing various grasses as alternative hosts before invading rice paddies during the flowering stage.
Triraphis
Needlegrass, Triraphis grasses
Triraphis is a genus of grasses (Poaceae: Triraphideae) native to Africa, Arabia, Australia, and Brazil. Commonly called needlegrass, species in this genus inhabit diverse environments from tropical to arid regions. The genus serves as host for specialized smut fungi in the genera Tilletia and Ustilago.
Troyus
Troyus is a genus of skipper butterflies in the family Hesperiidae, subtribe Moncina. The genus was established in 2012 and contains Neotropical species distributed from the Caribbean to the Amazon basin. At least two species are recognized: T. turneri from Jamaica and T. phyllides from the Peruvian Amazon.