Sternorrhyncha
Guides
Toumeyella pini
Striped Pine Scale
Toumeyella pini, commonly known as the Striped Pine Scale, is a soft scale insect native to North America. It is a significant pest of pine trees, particularly two- and three-needle pine species. The species exhibits pronounced sexual dimorphism in both morphology and feeding location: females are larger, highly convex, and develop on terminal twigs, while males are smaller, more elongate, and develop on needles. The species secretes copious honeydew, which attracts ants, wasps, bees, and flies, and can lead to sooty mold growth that inhibits photosynthesis. In southern Georgia, it completes three generations per year, with crawler activity peaking in May, mid-July to early August, and late October to early November.
Tramini
Tramini is a tribe of aphids within the family Aphididae, subfamily Lachninae. Members are medium to large aphids characterized by robust bodies, long antennae, and siphunculi that are either absent or reduced to small pores. The tribe includes conifer-feeding aphids, with many species associated with pine (Pinus) hosts.
Trialeurodes
greenhouse whitefly, whitefly
Trialeurodes is a large genus of whiteflies in the family Aleyrodidae, containing economically significant agricultural pests. The genus includes species such as the greenhouse whitefly (T. vaporariorum) and the bandedwinged whitefly (T. abutiloneus), which infest hundreds of host plant species including vegetables, cotton, and ornamental plants. Members are tiny phloem-feeding insects, typically measuring 1–3 mm, with distinctive waxy wings and piercing-sucking mouthparts. Several species are subjects of intensive biological control research using parasitoid wasps.
Trialeurodes pergandei
Trialeurodes pergandei is a species of whitefly in the family Aleyrodidae. Whiteflies are tiny sap-sucking insects closely related to aphids. This species belongs to a genus that includes several economically significant agricultural pests, though specific information about T. pergandei's biology and impact appears limited in available sources.
Trioza
psyllids, jumping plant-lice
Trioza is the type genus of psyllids in the family Triozidae, comprising sap-sucking insects with worldwide distribution. Species in this genus exhibit diverse host associations, ranging from agricultural crops to native trees. Several species are economically significant: Trioza erytreae transmits citrus greening disease (Huanglongbing), T. apicalis is a major pest of carrot in northern Europe, and T. brevigenae is an invasive pest of ornamental Ficus in California. The genus is characterized by distinct morphological features and complex life cycles involving seasonal migration between summer hosts and overwintering sites.
Trioza magnoliae
Red Bay Psyllid
Trioza magnoliae, commonly known as the Red Bay Psyllid, is a gall-forming psyllid native to eastern North America. This species induces characteristic galls on the leaves of native Persea bay trees, particularly red bay (Persea borbonia) and related species. The insect has a wide distribution across the eastern and central United States. While primarily an ecological curiosity due to its gall-forming habit, it has gained attention in relation to the decline of red bay populations caused by the invasive laurel wilt disease, as the psyllid's host trees face significant mortality.
Trioza obtusa
Trioza obtusa is a species of psyllid (jumping plant louse) in the family Triozidae, described by Patch in 1911. It belongs to a genus known for species that feed on various host plants and often induce gall formation. The species is documented in multiple North American distribution records but specific biological details remain limited in available literature.
Trioza phoradendri
Trioza phoradendri is a psyllid species in the family Triozidae, described by Tuthill in 1939. It is currently recognized as a synonym of Trioza phorodendrae. The species belongs to the diverse genus Trioza, which includes numerous psyllids associated with various host plants. Information on its biology, ecology, and distribution remains limited in the available literature.
Tuberculatus pallidus
pale oak aphid
Tuberculatus pallidus is a species of aphid in the family Aphididae, described by Davidson in 1919. It belongs to the genus Tuberculatus, which comprises aphids primarily associated with oak trees (Quercus spp.). The species name "pallidus" refers to its pale coloration. Like other members of its genus, it is likely a specialist feeder on oak foliage, though specific biological details remain poorly documented in accessible literature.
Uroleucon adenocaulonae
Uroleucon adenocaulonae is a species of aphid in the family Aphididae, described by Essig in 1936. As a member of the genus Uroleucon, it shares characteristics with other large aphids that feed on plants in the Asteraceae family. The specific epithet suggests an association with Adenocaulon, a genus of plants commonly known as trailplant. Like other Uroleucon species, it likely exhibits parthenogenetic reproduction during favorable seasons.
Uroleucon taraxaci
Bronze-brown Dandelion Aphid
Uroleucon taraxaci is a species of aphid in the family Aphididae, commonly known as the Bronze-brown Dandelion Aphid. As a member of the genus Uroleucon, it shares characteristics with related species that exhibit parthenogenetic reproduction during spring and summer, forming all-female colonies. The species is associated with plants in the Asteraceae family, particularly dandelion (Taraxacum). Like other Uroleucon aphids, it produces honeydew that attracts predators and parasitoids. The species has been documented across parts of Europe and Asia.
Utamphorophora crataegi
Four-spotted Hawthorn Aphid
Utamphorophora crataegi is an aphid species in the family Aphididae, commonly known as the Four-spotted Hawthorn Aphid. The species was originally described as Amphorophora crataegi by Monell in 1879 and later transferred to the genus Utamphorophora. It is associated with hawthorn (Crataegus) as a host plant, as indicated by its specific epithet. The species has been recorded in Hawaii and the conterminous United States.
Wahlgreniella nervata
Strawberry Tree Aphid
Wahlgreniella nervata is an aphid species in the family Aphididae, commonly known as the Strawberry Tree Aphid. The species has been documented in Europe and South America, with observations concentrated on cultivated and ornamental plants. It is associated with plants in the genus Arbutus, particularly Arbutus unedo (strawberry tree). The species was first described by Gillette in 1908.
Xylococcidae
Xylococcidae is a small family of scale insects within the order Hemiptera. The family contains approximately 11 described species across four genera: Xylococcus, Xylococculus, Jansenus, and the extinct genus †Baisococcus. Members of this family are classified within the superfamily Coccoidea, which encompasses scale insects and mealybugs. The family was established by Pergande in 1898.