Seed-bug
Guides
Lamprodema maura
Lamprodema maura is a species of true bug in the family Rhyparochromidae, a group commonly known as seed bugs or ground bugs. The species was originally described as Lygaeus maurus by Fabricius in 1803 and later transferred to the genus Lamprodema. It has a broad geographic distribution spanning multiple continents including North America, Europe, Africa, and southern Asia. As a member of the Megalonotini tribe within the Rhyparochrominae subfamily, it belongs to a lineage of ground-dwelling heteropterans.
Leptoglossus
leaf-footed bugs
Leptoglossus is a genus of true bugs in the leaf-footed bug family Coreidae, tribe Anisoscelini. Species are characterized by leaflike dilations of the hind tibia, a diagnostic trait of the genus. The genus is distributed throughout the Americas, with some introduced populations in Europe and Asia. Several species are economically significant agricultural pests, notably L. occidentalis, which has become invasive in multiple continents.
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nchanmoss-bugarchaeorrhynchanfulgoromorphancicadomorphanmembracoidtreehopperleafhopperplanthopperpsyllidjumping-plant-lousewhiteflyaleyrodidscale-insectcoccoidmealybugaphidadelgidphylloxeransternorrhynchanthysanopteranthripspsocopteranbarklousebooklousephthirapteranlousesucking-lousechewing-lousemallophagananoplurandermapteranearwigblattodeancockroachtermiteisopteranmantodeanmantidphasmidstick-insectleaf-insectorthopterangrasshopperlocustkatydidcricketmole-cricketpygmy-mole-cricketcamel-cricketcave-cricketwetaensiferancaeliferangryllotalpidmyrmecophilidtettigoniidgryllidacrididpamphagidpneumoridlentulidtristirideumastacidproscopiidtridactylidtetrigidgrouse-locustpygmy-grasshopperplecopteranstoneflyembiopteranwebspinnerzorapteranangel-insectdictyopteranLeptoglossus occidentalis
Western Conifer Seed Bug, WCSB
Leptoglossus occidentalis, commonly known as the Western Conifer Seed Bug, is a leaf-footed bug native to western North America that has undergone dramatic range expansion. Originally confined to the Pacific coast region from California to British Columbia, it began spreading eastward in the 1950s, reaching the Atlantic coast by the 1990s. The species has also become invasive in Europe (first detected in Italy in 1999), Asia, South America, and elsewhere. Adults are notable for their loud, droning flight and tendency to seek shelter indoors during autumn, where they become nuisance pests. They feed on conifer seeds and developing cones, particularly of pines, and can cause significant damage in seed orchards.
Ligyrocoris barberi
Ligyrocoris barberi is a species of seed bug in the family Rhyparochromidae, described by Sweet in 1986. It belongs to the tribe Myodochini within the subfamily Rhyparochrominae. The genus Ligyrocoris comprises small to medium-sized true bugs commonly known as seed bugs, though specific ecological details for L. barberi remain poorly documented.
Ligyrocoris delitus
Ligyrocoris delitus is a seed bug in the family Rhyparochromidae, first described by Distant in 1882. The species is recorded from the southern United States through Mexico to Guatemala. As a member of the Myodochini tribe, it belongs to a group of ground-dwelling seed bugs with documented associations with fallen seeds and plant debris. Available records indicate limited observation effort, with 16 iNaturalist observations documented.
Ligyrocoris depictus
dirt-colored seed bug
Ligyrocoris depictus is a seed bug species in the family Rhyparochromidae, described by Barber in 1921. It is part of a complex of closely related northeastern North American species that includes L. diffusus, L. sylvestris, and a subsequently described species. These four species are sympatric in New England but differ markedly in overall distribution.
Ligyrocoris latimarginatus
dirt-colored seed bug
Ligyrocoris latimarginatus is a dirt-colored seed bug in the family Rhyparochromidae, described by Barber in 1921. It belongs to the tribe Myodochini within the subfamily Rhyparochrominae. The species has been documented in the United States and is considered part of the North American fauna.
Ligyrocoris obscurus
dirt-colored seed bug
Ligyrocoris obscurus is a species of dirt-colored seed bug in the family Rhyparochromidae, described by Barber in 1921. The species is known from North America, with records primarily from the United States. As a member of the Lygaeoidea superfamily, it belongs to a diverse group of seed-feeding true bugs.
Ligyrocoris probably-unnamed
Ligyrocoris probably-unnamed is a seed bug in the family Oxycarenidae. The specific epithet "probably-unnamed" indicates this is an undescribed or provisionally recognized species within the genus Ligyrocoris. Members of this genus are typically small, ground-dwelling bugs associated with herbaceous vegetation. This entry documents a taxon awaiting formal description.
Ligyrocoris sylvestris
dirt-colored seed bug
Ligyrocoris sylvestris is a dirt-colored seed bug in the family Rhyparochromidae, widespread across multiple continents including North America, Europe, Africa, and Asia. The species name 'sylvestris' (meaning 'of the forest') reflects its association with wooded habitats. It belongs to a genus of closely related species that exhibit marked differences in habitat preferences and life cycles, with some species adapted to relatively dry fields while others occupy wetter marginal habitats.
Lygaeospilus fusconervosus
Lygaeospilus fusconervosus is a species of seed bug in the family Lygaeidae, described by Barber in 1948. It belongs to a genus of small to medium-sized lygaeid bugs. The species is known from the United States, with records documented in the mid-20th century. Like other members of Lygaeidae, it is presumed to be associated with seeds, though specific biological details remain poorly documented.
Lygaeospilus tripunctatus
Lygaeospilus tripunctatus is a seed bug species in the family Lygaeidae, first described by Dallas in 1852 under the basionym Aphanus tripunctatus. The species is distributed across Central America and North America, with confirmed records from the United States and Mexico. It belongs to the subfamily Lygaeinae within the true bug infraorder Pentatomomorpha.
Lygaeus
seed bugs, milkweed bugs
Lygaeus is a genus of seed bugs in the family Lygaeidae, containing over 60 described species. Members are characterized by aposematic coloration—typically combinations of red, black, gray, and white—that advertises chemical defenses. Several species, notably L. kalmii (small milkweed bug), sequester cardiac glycosides from host plants, rendering them unpalatable to predators. The genus exhibits diverse feeding strategies ranging from seed-feeding specialization to opportunistic scavenging.
Lygaeus analis
Lygaeus analis is a seed bug in the family Lygaeidae, distributed from Mexico through Central America to tropical South America. The species belongs to a genus that includes several milkweed-associated bugs, though specific ecological details for L. analis itself remain poorly documented. It is a true bug with typical lygaeid morphology, but published studies have not examined its biology in detail.
Lygaeus kalmii
Small Milkweed Bug, Common Milkweed Bug
Lygaeus kalmii is a seed bug in the family Lygaeidae known for its bright orange-red and black aposematic coloration. Adults measure 10–12 mm and feed primarily on milkweed seeds and flower nectar, though they exhibit dietary flexibility including scavenging on dead insects and feeding on seeds of other plants such as composites. The species sequesters cardiac glycosides from milkweed, making it unpalatable to predators. Unlike the migratory large milkweed bug (Oncopeltus fasciatus), L. kalmii is non-migratory and overwinters as adults. Two subspecies are recognized: L. k. kalmii in western North America and L. k. angustomarginatus in the east, distinguished by differences in the white markings on the membranous portion of the forewings.
Lygaeus truculentus
Lygaeus truculentus is a seed bug species in the family Lygaeidae, first described by Stål in 1862. Records indicate a distribution spanning from western North America through Central America to northern South America, with confirmed presence in California, USA. The species belongs to a genus containing several milkweed-associated bugs, though specific ecological relationships for this particular species remain poorly documented.
Lygaeus turcicus
False Milkweed Bug, Heliopsis Bug
Lygaeus turcicus, commonly known as the false milkweed bug or heliopsis bug, is a seed bug in the family Lygaeidae native to eastern North America. Despite its common name, it does not feed on milkweeds but rather specializes on false sunflower (Heliopsis helianthoides). The species is frequently confused with the small milkweed bug (Lygaeus kalmii) and the large milkweed bug (Oncopeltus fasciatus) due to similar orange and black coloration.
Macroscytalus chisosensis
Macroscytalus chisosensis is a species of seed bug in the family Lygaeidae. It is endemic to the Chisos Mountains of Big Bend National Park in Texas, USA. The species is known from a limited number of specimens collected at high elevations in this isolated mountain range. Its restricted distribution makes it a notable example of localized endemism in the Chihuahuan Desert region.
Malezonotus angustatus
Malezonotus angustatus is a species of seed bug in the family Rhyparochromidae, first described by Van Duzee in 1910. It belongs to the diverse tribe Gonianotini, which contains small to medium-sized ground-dwelling seed bugs. The species is documented from the United States and Canada. Like other members of its family, it is presumed to feed on seeds, though specific ecological details remain poorly documented.
Malezonotus fuscosus
Malezonotus fuscosus is a species of dirt-colored seed bug in the family Rhyparochromidae, described by Barber in 1918. The species belongs to the tribe Gonianotini and is known from the United States. As with other members of Rhyparochromidae, it is likely associated with ground-level habitats and seed-feeding ecology, though specific natural history details remain poorly documented in the accessible literature.
Malezonotus obrieni
Malezonotus obrieni is a species of seed bug described by Ashlock in 1963. It belongs to the family Rhyparochromidae, a diverse group of true bugs commonly known as dirt-colored seed bugs. The species is known from North America. Like other members of its family, it likely occupies ground-level habitats and feeds on seeds.
Malezonotus sodalicius
dirt-colored seed bug
Malezonotus sodalicius is a species of true bug in the family Rhyparochromidae, commonly known as dirt-colored seed bugs. It occurs in North America, with records from the United States and Canada. The species was described by Uhler in 1876. Like other members of its family, it is likely associated with ground-level habitats and seed-feeding ecology.
Mayana
Mayana is a genus of true bugs in the family Oxycarenidae, established by Distant in 1893. The genus comprises at least three described species of small hemipteran insects. Members of this family are typically seed bugs with piercing-sucking mouthparts. Very little is known about the specific biology of Mayana species.
Mayana ramosus
Mayana ramosus is a species of true bug in the family Oxycarenidae, first described by Barber in 1938. The genus Mayana is a small group within the lygaeoid complex, and this species is one of few documented members. Records indicate occurrence in the United States. Like other Oxycarenidae, it is presumed to be a seed-feeding heteropteran, though specific biological details remain poorly documented.
Megalonotus sabulicola
Introduced Dirt-colored Seed Bug
Megalonotus sabulicola is a seed bug in the family Rhyparochromidae, native to Europe and northern Asia. It has been introduced to North America, where it is established and frequently recorded. The species is associated with sandy habitats, as indicated by its specific epithet 'sabulicola' (sand-dwelling). It is one of the more commonly observed dirt-colored seed bugs in its introduced range.
Megalotomus quinquespinosus
Lupine Bug
Megalotomus quinquespinosus, commonly known as the lupine bug, is a broad-headed bug in the family Alydidae. It is found across North America. While many alydids are primarily plant-feeders, this species has been documented feeding on carrion and dung, including the remains of small mammals in predator scat. This behavior represents an unusual expansion of diet beyond typical seed-feeding habits seen in related species.
Melacoryphus admirabilis
Admirable Seed Bug
Melacoryphus admirabilis is a seed bug in the family Lygaeidae, native to the Nearctic region of North America. The species is closely related to other soapberry bugs and shares ecological associations with plants in the family Sapindaceae. It occurs in the southwestern United States and Mexico, typically in warm, arid habitats. Like other members of its genus, it feeds on seeds and plant fluids. The species is occasionally encountered in large aggregations.
Melacoryphus facetus
Melacoryphus facetus is a seed bug in the family Lygaeidae, native to North America with records from the United States and Mexico. As a member of the genus Melacoryphus, it belongs to a group of lygaeid bugs often associated with aggregating behavior in suitable habitats. The species was described by Thomas Say in 1831. Available documentation for this species is limited compared to related taxa such as Melacoryphus lateralis.
Melacoryphus lateralis
Charcoal Seed Bug, Black-and-red Seed Bug
Melacoryphus lateralis is a species of true bug in the family Lygaeidae, commonly known as the charcoal seed bug or black-and-red seed bug. Native to desert regions of western North America, this species is recognized by its distinctive black body fringed with red and gray coloration, resembling a dying ember. Populations are known to appear in large aggregations during late summer. The species is closely related to the small milkweed bug (Lygaeus kalmii) and shares similar coloration patterns with other lygaeid seed bugs.
Melacoryphus nigrinervis
Black-veined Seed Bug
Melacoryphus nigrinervis is a seed bug in the family Lygaeidae, commonly known as the Black-veined Seed Bug. The species has been documented in Colorado during unseasonably warm conditions in mid-November, suggesting adult activity extends later into fall than typical for many temperate insects. It belongs to a genus closely related to soapberry bugs, though specific ecological details remain limited in published sources.
Melacoryphus rubicollis
Melacoryphus rubicollis is a seed bug in the family Lygaeidae, known from the southwestern United States and Mexico. The species belongs to a genus of small to medium-sized seed bugs often found in association with vegetation. Limited published information exists on its biology, though related species in the genus have been documented forming aggregations in suitable habitats.
Melanopleurus belfragei
redcoat seed bug
Melanopleurus belfragei, commonly known as the redcoat seed bug, is a species of true bug in the family Lygaeidae. It is distributed across Central America and North America. The species is a member of the seed bug group within the family, which are generally associated with feeding on seeds. It was originally described as Lygaeus belfragei by Stål in 1874 before being transferred to the genus Melanopleurus.
Melanopleurus fuscosus
Melanopleurus fuscosus is a seed bug in the family Lygaeidae, described by Brailovsky in 1977. The species has been documented from Santa Cruz Island off the coast of California, with 211 observations recorded on iNaturalist. As a member of the Lygaeidae, it belongs to a family of true bugs commonly known as seed bugs, though specific biological details for this species remain limited in published literature.
Melanopleurus tenor
Melanopleurus tenor is a species of seed bug in the family Lygaeidae, described by Brailovsky in 1979. The genus Melanopleurus belongs to the true bugs (Heteroptera), a group characterized by piercing-sucking mouthparts and incomplete metamorphosis. As a member of Lygaeidae, this species is likely associated with seed-feeding habits typical of the family, though specific ecological data remain limited. The species has been recorded in North America.
Myodocha annulicornis
banded long-necked seed bug
Myodocha annulicornis, commonly known as the banded long-necked seed bug, is a species of dirt-colored seed bug in the family Rhyparochromidae. The species was described by Blatchley in 1926. It belongs to the genus Myodocha, which is characterized by elongated neck-like pronota. The species is native to North America.
Myodocha serripes
long-necked seed bug
Myodocha serripes, commonly known as the long-necked seed bug, is a dirt-colored seed bug in the family Rhyparochromidae. It is native to North America, with records from the United States, Canada, and Jamaica. The species feeds on seeds and has been documented as a pest on strawberry crops. Adults hibernate during winter, either solitarily or in small groups, before migrating to fields in spring. Activity peaks in autumn, though populations in Florida remain active year-round without hibernating.
Neacoryphus
Neacoryphus is a genus of seed bugs in the family Lygaeidae, established by Scudder in 1965. The genus contains approximately five to seven described species, with Neacoryphus bicrucis being the most extensively studied. Members of this genus are seed-feeding insects with documented chemical defense mechanisms and complex territorial behaviors.
Neacoryphus bicrucis
Whitecrossed seed bug, Ragwort seed bug, White-crossed seed bug
Neacoryphus bicrucis is a seed-feeding true bug (Hemiptera: Lygaeidae) commonly known as the whitecrossed seed bug or ragwort seed bug. The species is specialized on Senecio species as host plants, from which it sequesters pyrrolizidine alkaloids that render it distasteful to some predators. It exhibits complex territorial and mating behaviors centered on host plant patches, with males defending high-density areas where females preferentially oviposit. The species shows pronounced sexual dimorphism in flight behavior: females conditionally histolyze flight muscles based on resource availability, while males retain flight capability throughout life. It has a broad distribution across the Americas and has been introduced to Oceania.
Neopamera albocincta
Horn-banded Seed Bug
Neopamera albocincta is a seed bug in the family Rhyparochromidae, commonly known as the Horn-banded Seed Bug. It has a broad distribution spanning the Caribbean, Central America, North America, and South America. The species belongs to a diverse group of ground-dwelling seed bugs that feed on fallen seeds. It is relatively well-documented on citizen science platforms with over 1,200 observations.
Neopamera bilobata
dirt-colored seed bug
Neopamera bilobata is a seed bug in the family Rhyparochromidae with a broad distribution across the Americas. It has emerged as a significant pest of strawberry cultivation in high tunnel systems, where it causes catfacing damage to fruits. The species exhibits distinctive reproductive behaviors including male courtship displays and female resistance during copulation. Laboratory studies indicate a lifespan of approximately 45-52 days and egg-laying rates of 2.2 eggs per day.
Neopetissius
Neopetissius is a genus of seed bugs in the family Rhyparochromidae, described by O'Donnell in 2001. It belongs to the tribe Lethaeini within the subfamily Rhyparochrominae. The genus is part of the diverse lygaeoid radiation of Heteroptera. As a relatively recently described taxon, detailed biological information remains limited.
Neopetissius slaterorum
Neopetissius slaterorum is a seed bug in the family Rhyparochromidae, described by O'Donnell in 2001. The species is distributed across Central and South America, with records from Mexico to Brazil. Like other members of Rhyparochromidae, it belongs to a family of true bugs commonly known as dirt-colored seed bugs. The specific epithet honors the Slater family, prominent figures in heteropteran systematics.
Neortholomus arphnoides
Neortholomus arphnoides is a species of seed bug in the family Lygaeidae, first described by Baker in 1906. It belongs to the subfamily Orsillinae, a group commonly associated with feeding on seeds. The species is known from the Pacific region of the United States. Published records are sparse, with only six observations documented on iNaturalist as of the knowledge cutoff.
Neortholomus jamaicensis
Neortholomus jamaicensis is a seed bug in the family Lygaeidae, distributed across the Caribbean, Central and South America, and parts of North America. The species was described by Dallas in 1852 and is the type species of the genus Neortholomus. Records indicate presence in diverse tropical and subtropical habitats including the West Indies, Central America, and northern South America, with isolated records from Oceania (Tahiti).
Neortholomus koreshanus
Neortholomus koreshanus is a seed bug in the family Lygaeidae, originally described as Belonochilus koreshanus by Van Duzee in 1909. The species occurs in the Caribbean and North America, with records from the United States and Isle of Pines (Cuba). As a member of the subfamily Orsillinae, it belongs to a group commonly associated with seed-feeding habits. The genus Neortholomus is relatively small and poorly studied, with limited published information on its biology.
Nysius
false chinch bugs
Nysius is a large genus of seed-feeding true bugs in the family Lygaeidae, commonly known as false chinch bugs. The genus contains approximately 100-106 described species with worldwide distribution. Several species are significant agricultural pests, including N. huttoni (wheat bug) in New Zealand and N. cymoides in Europe and Turkey. A unique Hawaiian radiation contains 26 species, including two flightless, predatory wēkiu bugs (N. wekiuicola and N. aa) that feed on dead and dying insects on high-elevation volcanoes. Most species feed on seeds and plant fluids, though some exhibit atypical feeding behaviors.
Nysius fuscovittatus
Nysius fuscovittatus is a species of seed bug in the family Lygaeidae, described by Barber in 1958. It is found in North America, with distribution records from the United States. Like other members of the genus Nysius, it is likely a seed-feeding true bug, though specific ecological details for this species are poorly documented in the available literature. The species name 'fuscovittatus' refers to dark (fuscous) longitudinal stripes or bands.
Nysius raphanus
False Chinch Bug
Nysius raphanus, commonly known as the false chinch bug, is a small North American seed bug in the family Lygaeidae. Adults measure no more than 1/8 inch (approximately 3 mm) in length. The species undergoes hemimetabolous development with multiple nymphal stages rather than a larval stage; nymphs resemble wingless adults. While recognized as the most serious pest among Nysius species, reports of heavy infestations causing significant crop damage are uncommon. Populations can reach outbreak levels under dry conditions.
Ochrimnus barberi
Ochrimnus barberi is a seed bug species in the family Lygaeidae, first described by Slater in 1964. It belongs to the subgenus Parochrimnus within the genus Ochrimnus. The species has been recorded in both Central America and North America. Available information on this species is limited, with only a small number of observations documented.
Ochrimnus mimulus
Orange-collared Seed Bug
Ochrimnus mimulus is a species of seed bug in the family Lygaeidae, commonly known as the Orange-collared Seed Bug. It has been documented in North America, with specific study in Central Texas examining its host range and oviposition behavior. As a member of the Lygaeidae family, it belongs to a group of true bugs primarily associated with seeds.