Aphid
Guides
Hyalopterus
Mealy Plum-Reed Aphids
Hyalopterus is a genus of aphids in the family Aphididae, commonly known as mealy plum-reed aphids. Species in this genus are cosmopolitan pests of stone fruit trees in the genus Prunus, causing damage through direct feeding and virus transmission. The genus has undergone recent taxonomic revision, with molecular and morphometric analyses supporting at least three distinct species: H. pruni, H. amygdali, and H. persikonus (the latter described in 2006). Species boundaries are strongly correlated with host-plant associations.
Hyalopterus pruni
Mealy Plum Aphid
Hyalopterus pruni, the mealy plum aphid, is a sap-feeding aphid in the family Aphididae with a cosmopolitan distribution. It exhibits a complex life cycle involving multiple generations of wingless adults followed by the production of winged migrants that disperse to secondary hosts. The species is notable for its waxy covering and seasonal host alternation between Prunus species and grasses or reeds.
Hyperomyzus
Currant-Daisy Aphids
Hyperomyzus is a genus of aphids in the family Aphididae, established by Börner in 1933. The genus comprises more than 20 described species, commonly known as Currant-Daisy Aphids. The best-studied species, Hyperomyzus lactucae (the sowthistle aphid), is a significant agricultural pest and plant virus vector. Members of this genus exhibit typical aphid characteristics including phloem-feeding habits and complex life cycles involving both sexual and asexual reproduction.
Hyperomyzus lactucae
Sowthistle Aphid, Blackcurrant-sowthistle Aphid
Hyperomyzus lactucae is a European aphid species in the family Aphididae, commonly known as the sowthistle aphid or blackcurrant-sowthistle aphid. The species exhibits a host-alternating life cycle, utilizing Sonchus species (sowthistles) as primary hosts and Ribes nigrum (blackcurrant) as a secondary host. It is a known vector of lettuce necrotic yellows virus and has been introduced to Australia as a pest of lettuce crops. Development, survival, and reproduction are strongly influenced by temperature and photoperiod, with faster development at higher temperatures within a range of approximately 12.5–24°C.
Hyperomyzus pallidus
Gooseberry-Sowthistle Aphid
Hyperomyzus pallidus is a species of aphid in the family Aphididae, first described by Hille Ris Lambers in 1935. It is commonly known as the Gooseberry-Sowthistle Aphid, reflecting its association with host plants in the genera Ribes (gooseberries and currants) and Sonchus (sowthistles). The species exhibits the typical aphid life cycle with alternating hosts, though specific details remain incompletely documented. It has been recorded from parts of Europe and North America.
Hysteroneura setariae
Rusty Plum Aphid
Hysteroneura setariae is a cosmopolitan aphid species known primarily as the Rusty Plum Aphid. It feeds on grasses and fruit trees, with documented associations including Muhlenbergia capillaris and various Prunus species. The species has been recorded across six continents, with particularly dense populations observed in urban park settings in Japan. It serves as prey for generalist predators including Coccinella septempunctata.
Illinoia
Illinoia is a genus of aphids (Aphididae: Aphidinae: Macrosiphini) established by Wilson in 1910. The genus contains multiple economically and ecologically significant species, including the tuliptree aphid (I. liriodendri), a notable pest of ornamental Liriodendron tulipifera, and the blueberry aphid (I. pepperi). Species in this genus are phloem-feeding insects associated with specific host plants, with some having become invasive outside their native ranges.
Illinoia crystleae
Pale-streaked Honeysuckle Aphid
Illinoia crystleae is a species of aphid in the family Aphididae, commonly known as the Pale-streaked Honeysuckle Aphid. It belongs to the genus Illinoia, which comprises aphids primarily associated with woody shrubs and trees. The species was described by Smith and Knowlton in 1939. Very few observations of this species have been documented, with only three records in iNaturalist, indicating it is either genuinely rare, underreported, or restricted to specific host plants or geographic regions.
Illinoia liriodendri
tuliptree aphid, tulip tree aphid
Illinoia liriodendri is a sap-feeding aphid native to eastern North America that specializes on tuliptree (Liriodendron tulipifera). It has become an invasive pest in Europe, where it was first recorded in the early 2000s and has since spread to multiple countries. The species exhibits a monoecic-holocyclic life cycle, with peak populations occurring in late spring. It is considered the most significant insect pest of tuliptree in urban landscapes, capable of reaching high densities that produce substantial honeydew and impact young trees.
Illinoia maxima
Green-striped Thimbleberry Aphid
Illinoia maxima is a species of aphid in the family Aphididae, commonly known as the Green-striped Thimbleberry Aphid. It belongs to the genus Illinoia, a group of aphids associated with various host plants. Information about this species is limited, with only seven observations documented on iNaturalist. The specific epithet 'maxima' suggests relatively large size compared to congeners, though this has not been formally verified.
Illinoia morrisoni
Sequoia Aphid
Illinoia morrisoni is an aphid species in the family Aphididae, first described by Swain in 1918. The species is commonly known as the Sequoia Aphid. It has been recorded from Chile across multiple regions, with additional distribution records from Belgium (doubtful) and France. The species belongs to the genus Illinoia, which comprises aphids primarily associated with coniferous hosts.
Illinoia rubicola
Spot-winged Raspberry Aphid
Illinoia rubicola is an aphid species in the family Aphididae, commonly known as the Spot-winged Raspberry Aphid. The species was described by Oestlund in 1886. It is placed in the genus Illinoia, tribe Macrosiphini, and is associated with raspberry (Rubus) host plants. Taxonomic status varies between sources, with Catalogue of Life listing it as a synonym while GBIF and iNaturalist treat it as accepted.
Illinoia spiraecola
spirea aphid, green citrus aphid
Illinoia spiraecola is a medium-sized aphid species in the family Aphididae. It is primarily associated with Spiraea (spirea) as a host plant and has been documented as a pest of citrus in some regions. The species exhibits the typical aphid life cycle with both sexual and parthenogenetic generations, and produces alate (winged) dispersal morphs.
Kaltenbachiella
Kaltenbachiella is a genus of gall-forming aphids in the family Aphididae, subfamily Eriosomatinae. The genus was established by Schouteden in 1906 and contains at least three described species. Members of this genus are known for inducing closed galls on host plants and exhibit fine-scale genetic adaptation to individual host tree phenologies. The best-studied species, Kaltenbachiella japonica, demonstrates specialized coevolution with elm trees.
Lachninae
Giant Aphids
Lachninae is a subfamily of aphids (Aphididae) notable for containing some of the largest-bodied aphid species, commonly referred to as 'giant aphids.' Members are distinguished by greatly reduced or vestigial cornicles compared to other aphids. The subfamily exhibits a unique dual symbiotic system involving Buchnera and co-obligate secondary endosymbionts, primarily Serratia symbiotica, which compensates for riboflavin biosynthetic deficiencies in the primary symbiont. This group has been historically treated as a separate family (Lachnidae) by some authors. The subfamily includes economically significant species associated with coniferous and broadleaf trees.
Lachnini
Lachnini is a tribe within the aphid subfamily Lachninae, comprising relatively large-bodied aphids. Members feed on green and woody tissues of both coniferous and deciduous plants, with documented associations including Rosaceae, Salicaceae (Salix), and potentially Prunus. The tribe exhibits complex life cycles with high polymorphism and environmental plasticity. Lachnini is one of five recognized tribes in Lachninae and has been subject to recent phylogenetic revision alongside related groups Tuberolachnini and Tramini.
Lachnochaitophorus
Lachnochaitophorus is a genus of aphids in the family Aphididae, tribe Myzocallidini. It was established by Granovsky in 1933. Members of this genus are small, sap-feeding insects that infest woody plants. The genus is poorly documented in scientific literature, with limited species-level information available.
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-insectdictyopteranLiosomaphis
Liosomaphis is a genus of aphids in the family Aphididae. The genus was established by Walker in 1868 and is currently recognized as valid, though some sources list it as a synonym of Elatobium. Species are recorded from Europe and North America, with distribution records from Denmark, Norway, and Sweden. The genus contains at least two described species: Liosomaphis atra and Liosomaphis berberidis.
Lipaphis
Crucifer Aphids
Lipaphis is a genus of aphids in the family Aphididae, commonly known as crucifer aphids. Species in this genus are specialized feeders on plants in the family Brassicaceae, with some species showing broader host ranges within dicotyledons. The genus includes economically significant pests such as Lipaphis erysimi (mustard aphid) and Lipaphis pseudobrassicae, which cause substantial yield losses in rapeseed, mustard, kale, and other cruciferous crops across multiple continents.
Lipaphis pseudobrassicae
Turnip Aphid
Lipaphis pseudobrassicae, commonly known as the turnip aphid, is a Brassicaceae-specialist aphid and significant agricultural pest. It exhibits high biotic potential with rapid population growth rates on host plants. The species shows better adaptation to high temperatures than some congeners, suggesting increasing relevance in warmer growing seasons and regions. It is a target for integrated pest management strategies and biological control programs.
Longicaudus
Longicaudus is a genus of aphids (family Aphididae) established by van der Goot in 1913. The genus belongs to the tribe Macrosiphini and contains at least two described species: Longicaudus cornutus and Longicaudus dunlopi. Species are recorded from Europe and North America.
Longicaudus trirhodus
Rose-Columbine Aphid
Longicaudus trirhodus, commonly known as the Rose-Columbine Aphid, is a species of aphid in the family Aphididae. It belongs to the genus Longicaudus, which is characterized by distinctive long caudal structures. The species has been documented in Europe (Denmark, Norway, Sweden) and the contiguous United States. As a member of the Macrosiphini tribe, it is likely associated with herbaceous host plants, though specific ecological details remain limited in available sources.
Longistigma
giant bark aphid
Longistigma is a genus of giant aphids in the family Aphididae, containing at least three described species. These are the largest aphids in North America, with Longistigma caryae (giant bark aphid) being particularly notable for its size. The genus was established by Wilson in 1909 based on the extremely long, slender stigma that extends around the end of the wing. Members of this genus feed on bark and are associated with trees including oak, hickory, walnut, and beech.
Longistigma caryae
Giant Bark Aphid
Longistigma caryae, commonly known as the giant bark aphid, is the largest aphid species native to the United States. First described in 1841 from pignut hickory in Massachusetts, this species was later placed in its own genus due to its distinctive extremely long, slender stigma that extends around the end of the wing. It feeds on the bark of hickory trees and has been documented across eastern and central North America.
Lysiphlebus
Lysiphlebus is a genus of small parasitoid wasps in the family Braconidae, subfamily Aphidiinae. Species in this genus are endoparasitoids of aphids, with females laying eggs inside aphid hosts where larvae develop and eventually emerge from mummified aphid remains. The genus exhibits remarkable reproductive diversity, including both sexual and asexual lineages, with some species capable of facultative sex. Several species, particularly L. testaceipes, are important biological control agents used in integrated pest management programs worldwide.
Macrosiphini
Macrosiphini is a large tribe of aphids within the subfamily Aphidinae, comprising over 200 genera and numerous species distributed worldwide. Members exhibit diverse life cycles, including both monoecious species that remain on herbaceous plants year-round and heteroecious species that alternate between woody primary hosts and herbaceous secondary hosts. The tribe includes many economically significant agricultural pests, such as Myzus persicae (green peach aphid) and Macrosiphum species. Host plant specificity varies considerably, with some species restricted to single host species and others feeding across multiple plant families.
Macrosiphoniella
Anthemid Aphids
Macrosiphoniella is a genus of aphids in the family Aphididae, comprising at least 150 described species. The genus was established by Giacomo del Guercio in 1911 and is classified within the tribe Macrosiphini. Species in this genus exhibit notable color polymorphism, with body colors ranging from green and red to white, orange, yellow, and intermediate forms. Several subgenera are recognized, including Asterobium, Ramitrichophorus, and Papillomyzus. The genus has been documented across Europe, Asia, and into North Africa.
Macrosiphoniella glabra
Shining Green Tarragon Aphid
Macrosiphoniella glabra, known as the Shining Green Tarragon Aphid, is a species of aphid in the family Aphididae. The species was described by Gillette and Palmer in 1928. It belongs to the genus Macrosiphoniella, a group of aphids associated with various host plants in the Asteraceae family. The specific epithet "glabra" refers to smooth or hairless characteristics, likely describing some aspect of the aphid's morphology. Very few observations of this species have been recorded, with only 5 documented observations in iNaturalist.
Macrosiphoniella ludovicianae
White Sage Aphid
Macrosiphoniella ludovicianae, known as the White Sage Aphid, is a specialist aphid species in the family Aphididae. It is documented from a limited number of observations and appears to be associated with white sage (Salvia apiana) and related Salvia species. The species was described by Oestlund in 1886.
Macrosiphoniella millefolii
Yarrow Aphid
Macrosiphoniella millefolii is an aphid species in the family Aphididae, commonly known as the Yarrow Aphid. It is a specialist herbivore associated with yarrow (Achillea millefolium) and related plants in the Asteraceae family. The species has a broad distribution across Europe and extends into parts of Asia, with two recognized subspecies.
Macrosiphoniella sanborni
Chrysanthemum Aphid, Brown Chrysanthemum Aphid
Macrosiphoniella sanborni, the chrysanthemum aphid, is a phloem-feeding aphid in the family Aphididae. It is an oligophagous pest specialized on Chrysanthemum species and a major economic threat to chrysanthemum cultivation. The species exhibits wing dimorphism, with alate (winged) and apterous (wingless) morphs showing distinct chemosensory gene expression profiles. It vectors chrysanthemum viruses including vein mottle virus and virus B.
Macrosiphoniella tanacetaria
Tansy Aphid
Macrosiphoniella tanacetaria is a small sap-sucking aphid that feeds on tansy (Tanacetum vulgare). Unlike some congeners, it is not attended by ants and produces minimal honeydew. Its gut physiology differs markedly from ant-attended aphids: it lacks significant oligosaccharide synthesis for osmoregulation, instead producing erlose as its primary honeydew sugar.
Macrosiphum badium
false Solomon's-seal aphid
Macrosiphum badium, known as the false Solomon's-seal aphid, is a species of aphid described in 2000 by Andrew Jensen. It is endemic to western North America and feeds on west coast species of Maianthemum. The species is characterized by its reddish brown to reddish green coloration and distinctive siphunculi with black tips.
Macrosiphum californicum
California Willow Aphid
Macrosiphum californicum is a species of aphid in the family Aphididae. Commonly known as the California Willow Aphid, this species belongs to the genus Macrosiphum, which contains many economically significant plant-feeding aphids. The species was described by Clarke in 1903. As with other aphids in this genus, it possesses piercing-sucking mouthparts adapted for feeding on plant phloem.
Macrosiphum clydesmithi
Macrosiphum clydesmithi is a species of aphid in the family Aphididae, described by Robinson in 1980. It belongs to the genus Macrosiphum, a large group of aphids commonly known as potato aphids or rose aphids. The species is listed as a synonym in some sources but accepted in others, indicating taxonomic uncertainty. No specific biological or ecological information has been documented for this species in the available literature.
Macrosiphum coryli
American Hazelnut Aphid
Macrosiphum coryli is an aphid species in the family Aphididae, commonly known as the American Hazelnut Aphid. It is a specialist feeder associated with plants in the genus Corylus (hazelnuts). The species was described by Davis in 1914 and is currently accepted as valid, though it has been placed in the subgenus Neocorylobium within Macrosiphum by some treatments. It belongs to a genus of aphids that includes several economically significant species affecting agricultural crops.
Macrosiphum creelii
Western Vetch Aphid
Macrosiphum creelii is an aphid species in the family Aphididae, first described by Davis in 1914. It is commonly known as the Western Vetch Aphid and is associated with alfalfa (Medicago sativa) as a primary host plant. The species has been studied for its temperature-dependent survival and reproduction patterns.
Macrosiphum euphorbiae
potato aphid
Macrosiphum euphorbiae, commonly known as the potato aphid, is a polyphagous sap-sucking insect in the family Aphididae. It is a globally significant agricultural pest, particularly of potato (Solanum tuberosum), tomato, lettuce, and numerous other crops across more than 20 plant families. The species exhibits complex life cycle strategies including host alternation between primary (Rosa spp.) and secondary hosts, cyclical parthenogenesis in North America, and obligate asexual reproduction in UK populations. It vectors multiple plant viruses including potato leaf roll virus, potato virus Y, and tomato yellow top virus. The aphid demonstrates notable phenotypic plasticity with green and pink color morphs, and possesses distinctive antipredator behaviors including dropping from host plants followed by tonic immobility.
Macrosiphum gaurae
Beeblossom Aphid
Macrosiphum gaurae, commonly known as the beeblossom aphid, is an aphid species endemic to North America. It is distinguished by its unique coloration, including a brilliant rose pink form that is unique among North American aphids. The species is closely associated with evening primrose and beeblossom plants as its primary hosts. Its distribution spans from the east to west coasts of North America, though it becomes increasingly rare in the Pacific Northwest region from British Columbia to Oregon.
Macrosiphum impatientis
Green Jewelweed Aphid
Macrosiphum impatientis is an aphid species in the family Aphididae, first described by Williams in 1911. It is commonly known as the Green Jewelweed Aphid, indicating an association with jewelweed plants (Impatiens species). The species belongs to the genus Macrosiphum, a large group of aphids that feed on a variety of host plants. As with other Macrosiphum species, it likely possesses the characteristic long siphunculi and antennal tubercles typical of the genus.
Macrosiphum kiowanepus
Macrosiphum kiowanepus is a species of aphid in the family Aphididae. It belongs to the genus Macrosiphum, a large group of aphids commonly known as potato aphids or rose aphids. The species is known from a single observation record, indicating it is likely rare or poorly documented.
Macrosiphum mentzeliae
blazingstar aphid
Macrosiphum mentzeliae is an aphid species in the family Aphididae, first described by Wilson in 1915. The species is known by the common name 'blazingstar aphid', likely referencing an association with plants in the genus Mentzelia (blazingstars). It belongs to the large genus Macrosiphum, which contains numerous aphid species that feed on various host plants. Very few observations of this species have been recorded, with only a single observation documented on iNaturalist. The species is currently listed as a synonym in the Catalogue of Life, suggesting taxonomic uncertainty or consolidation with another taxon.
Macrosiphum olmsteadi
Northern Green Aster Aphid
Macrosiphum olmsteadi is an aphid species in the family Aphididae, described by Robinson in 1965. It is commonly known as the Northern Green Aster Aphid. Like other members of the genus Macrosiphum, it belongs to a group of aphids characterized by their relatively large size and long siphunculi. The species is placed in the tribe Macrosiphini, which includes many economically important aphid pests of agricultural crops.
Macrosiphum oregonense
Western Skunk-cabbage Aphid
Macrosiphum oregonense is an aphid species described by Jensen in 2000. It belongs to the large genus Macrosiphum within the family Aphididae. The species is commonly known as the Western Skunk-cabbage Aphid, indicating an association with skunk-cabbage plants (Lysichiton species). As a member of the Macrosiphum genus, it shares characteristics with other large aphids in this group, including long antennae and typically having both winged and wingless morphs. The species has been documented through limited observations, with only 3 records in iNaturalist as of the data cutoff.
Macrosiphum parvifolii
Waxy red-huckleberry aphid
Macrosiphum parvifolii is an aphid species in the family Aphididae, first described by Richards in 1967. The species has been assigned the common name "Waxy red-huckleberry aphid" on iNaturalist, though no observations of this species have been recorded on that platform. As a member of the genus Macrosiphum, it belongs to a group of aphids commonly known as "large aphids" or "macrosiphum aphids," many of which are associated with woody plants. The species name "parvifolii" (from Latin "parvus" small + "folium" leaf) suggests an association with small-leaved host plants.
Macrosiphum pseudocoryli
American Hophornbeam Aphid
Macrosiphum pseudocoryli is an aphid species in the family Aphididae, described by Patch in 1919. It is commonly known as the American Hophornbeam Aphid, indicating a likely association with hophornbeam (Ostrya species) as a host plant. The species belongs to the large genus Macrosiphum, which contains numerous aphid species associated with various woody and herbaceous plants.
Macrosiphum ptericolens
Bracken Aphid
Macrosiphum ptericolens, commonly known as the Bracken Aphid, is a species of aphid in the family Aphididae. It was described by Patch in 1919. The species has been recorded from several European countries including the Czech Republic and Great Britain, though some records are marked as doubtful. Like other members of the genus Macrosiphum, it is likely associated with herbaceous host plants.
Macrosiphum rosae
Rose Aphid
Macrosiphum rosae, the rose aphid, is a cosmopolitan pest of cultivated roses. Wingless adults are spindle-shaped, 1.7–3.6 mm long, and variable in color from green to pink to reddish-brown. The species is distinguished from similar aphids by its long, tapered, black siphunculi. It exhibits complex life cycle strategies including both holocyclic (sexual) and anholocyclic (asexual) populations depending on climate. In temperate regions, it alternates between rose primary hosts and secondary hosts such as teasel and valerian; in milder climates like South Australia and Iran, populations remain anholocyclic on roses year-round. The species is a significant horticultural pest causing aesthetic damage through flower and foliage distortion, honeydew production, and sooty mold development.
Macrosiphum rudbeckiarum
Macrosiphum rudbeckiarum is an aphid species in the family Aphididae, originally described by Cockerell in 1903. It belongs to the large genus Macrosiphum, which comprises numerous aphid species associated with diverse host plants. The specific epithet 'rudbeckiarum' indicates an association with Rudbeckia species, suggesting a host relationship with plants in this genus. The species is currently accepted in taxonomic databases, though detailed biological information appears limited in published literature.