Daniel Burckhardt

• Research Associate at Natural History Museum Basel

Even after decades of research on diversification in the Neotropics, our understanding of the evolutionary processes that shaped Neotropical clades is still incomplete. In the present study, we used different divergence times and likelihood-based methods to investigate the influence of biogeography and host plant associations on the diversification...

Psylloidea (Hemiptera—Sternorrhycha) is a superfamily of over 4000 species of plant-sap-sucking insects, many of which induce galls. While there have been numerous studies on neotropical psyllid galls, further research is needed to clarify their structural complexity and nutritive roles. Initial studies on psyllid galls began in Argentina in 1945,...

The predominantly tropical tribe Paurocephalini of jumping plant-lice currently consists of seven genera and 94 described species worldwide, of which the genera Klyveria Burckhardt et al. and Melanastera Serbina et al. have been recorded from Brazil with two and one species, respectively. Here we review the taxonomy of the Brazilian species based o...

Lilaoshia psorospermi Burckhardt, Aléné and Serbina, sp. n. (Psylloidea: Liviidae: Liviinae: Paurocephalini), developing on Psorospermum glaberrimum (Hypericaceae), is described from the Western Highlands of Cameroon. Adults, fifth-instar immatures and eggs are diagnosed and illustrated, and relationships to other Lilaoshia species are discussed. I...

Epipsylla Kuwayama, 1908, constitutes an Old World genus of psyllids with 15 described species. Based on characters of immatures, Epipsylla was recently assigned to Ciriacreminae (Psyllidae). The genus is morphologically well circumscribed but species are currently difficult to identify as many descriptions lack detail and precision. Eight species...

Among the most important sap-sucking insect pests (Hemiptera) of eucalypts are psyllids (Sternorrhyncha) and true bugs (Heteroptera). Damage inflicted to trees by these insects may include significant leaf area loss, to weakening or tree death. High pest populations may affect a significant proportion of trees within commercial stands, leading to l...

Even after decades of research on diversification in the Neotropics, our understanding of the evolutionary processes shaping Neotropical clades is still incomplete. In the current study, we used different divergence times and likelihood-based methods to investigate the influence of biogeography and host associations on the diversification of the mo...

Confirmation of the presence of Strophingia proxima Hodkinson, 1981, in metropolitan France (Hemiptera, Liviidae). The presence of the psyllid Strophingia proxima Hodkinson, 1981, is confirmed in Metropolitan France by recent collections in the Pays de la Loire and Centre-Val de Loire regions. We also report older collections from the Nouvelle-Aqui...

The predominantly tropical tribe Paurocephalini of jumping plant-lice currently consists of seven genera and 94 described species worldwide, of which the genera Klyveria Burckhardt et al. and Melanastera Serbina et al. have been recorded from Brazil with two and one species, respectively. Here we review the taxonomy of the Brazilian species based o...

The North American Bactericera minuta (Crawford) is recorded for the first time from Colombia and South America. It develops on Salix humboldtiana, a previously unknown host species. Trees infested with psyllids show symptoms of a disease caused by phytoplasmas. Adults and immatures of Bactericera minuta are described and illustrated, and some info...

The genus Diaphorina encompasses more than 70 described and about as many undescribed psyllid species, inhabiting the continents of the Old World. Although probably originated in China or India where it is widely distributed, some species of this genus were introduced to the countries of the Americas and Africa. Its most famous representative, D. c...

Psyllids (Hemiptera: Psylloidea) are plant sap-sucking insects whose identification is often difficult for non-experts. Despite the rapid development of DNA barcoding techniques and their widespread use, only a limited number of sequences of psyllids are available in the public databases, and those that are available are often misidentified. Here,...

Cui and huo, in huo and Shu (1985) erected the genus Liella (type-species Liella luonanensis yi, Cui and huo, in huo and Shu 1985, by original designation) for two species of bradoriid crustaceans (Crustacea, Bradoriida, Alutidae) from the Cambrian. Liella Cui and huo and six other Chinese genera are morphologically close to Alutella kobayashi and...

In a survey of the arthropod fauna of 33 Urban Green Spaces (UGS) in Bogotá, Colombia, between 2017 and 2019, 21 species (3,825 specimens) of Psylloidea were collected. These represent all seven recognised families of jumping plant-lice and include seven species identified only to genus. The specimens, all adults, were collected on 30 plant species...

Four new species of jumping plant lice (Hemiptera, Sternorrhyncha, Psylloidea) are described from Dominican amber: Diclidophlebia venosa Burckhardt & Drohojowska sp. nov., Klyveria sucina Burckhardt & Drohojowska sp. nov., Melanastera casca Burckhardt & Drohojowska sp. nov. and M. vetus Burckhardt & Drohojowska sp. nov. (Liviidae, Liviinae, Pauroce...

Melanastera sinica He & Burckhardt, sp. nov., a new psylloid species developing on Grewia sp., is described from Hainan, China. It is the first Melanastera species reported from Asia and China, and the second species from the Old World. While New World species of Melanastera are mostly associated with the plant families Melastomataceae and Annonace...

The small family Passandridae (Cucujoidea) or parasitic flat bark beetles occurs predominantly in the tropics and subtropics with four genera restricted to the Old and another four genera to the New World and only one pantropical genus. The fauna of the Indian subcontinent consists of 13 species of three genera. Five of the six Ancistria species ar...

Fossils can document the morphological diversification through time and date lineages, providing relevant characters are preserved. Primascena Klimaszewsi, 1997 was erected for P. subita Klimaszewsi, 1997 on the basis of a single, partly damaged male from Dominican amber. Originally assigned to Rhinocolidae: Paurocephalinae, the genus was subsequen...

Catálogo Taxonômico da Fauna do Brasil: se ng the baseline knowledge on the animal diversity in Brazil

Five species of Psyllinae are recognised from Gunung Kinabalu, all previously unknown, and are formally described and named: Cacopsylla graciliforceps sp. nov. , C. kinabaluensis sp. nov. , C. myrsines sp. nov. , C. photiniae sp. nov. and Psylla cirrita sp. nov. Another species similar to P. cirrita remains undescribed due to lack of sufficient mat...

Esta segunda edição segue a mesma linha da primeira, dando base para o incremento do conhecimento científico relativo à entomologia brasileira nos seus mais diversos aspectos, com informações gerais sobre morfologia, biologia, classificações, relações filogenéticas, importância agrícola, médica, veterinária, métodos de coletas e chaves de identific...

Using molecular (COI, Cytb, H3, wg, 12S, 16S, and 28S) and morphological data (61 characters of adults and immatures), the phylogenetic relationships of the 20 nominal genera of Liviinae were analysed, and the monophyly of the subfamily was tested relative to the other two subfamilies of Liviidae. The analyses of the molecular, morphological, and c...

The psyllid fauna of the Canary Islands is reviewed on the basis of recent field work on Tenerife, La Gomera, La Palma Gran Canaria and Lanzarote, as well as the examination of material deposited in several collections. Two new genera and 16 new species are described: Drepanoza Bastin, Burckhardt & Ouvrard gen. nov., Percyella Bastin, Burckhardt &...

A new psyllid species, Anoeconeossa exsul Burckhardt, sp. nov., is described based on material from Australia (Victoria) and South Africa (Western Cape). The new species is morphologically similar to A. bullata Taylor, 1987 from which it differs in details of the parameres. Immatures of A. exsul develop on the leaves of eucalypt species under the l...

Agonoscena pistaciae is a serious pest of pistachio in the Middle East and the Eastern Mediterranean. In this paper the presence of the species in Spain and Western Europe is confirmed. It is widespread in the regions of Castilla–La Mancha and Extremadura in Central Spain, where it develops mostly on Pistacia terebinthus, in contrast to the Middle...

R E S U M O O psilídeo-das-ponteiras do eucalipto Blastopsylla occidentalis Taylor, 1985 (Hemiptera: Psylloidea) é um inseto originário da Austrália e foi introduzido em vários outros continentes, incluindo as Américas. As colônias se concentram nas ponteiras apicais do eucalipto, onde adultos e imaturos sugam a seiva da planta, causando distorçõ...

Some psyllids transmit 'Candidatus Liberibacter solanacearum' (Lso), the causal agent of devastating plant diseases of cultivated Solanaceae and Apiaceae. The recent detection of Bactericera cockerelli and Lso in Ecuador seriously threatens these crops in South America. There, neither the role of native psyllids in the Lso epidemiology nor the psyl...

Acizzia convector Burckhardt & Taylor, sp. nov., a psyllid originating from Australia, is described from material from Australia (NT), South and Southeast Asia (Brunei, Cambodia, India, Laos, Malaysia [Sabah], Singapore and Thailand) and North America (USA [Florida from six counties]). The new species is diagnosed and illustrated, and a key is prov...

Eryngiofaga perrara sp. nov. is described, diagnosed and illustrated from two adult specimens found on Mount Pilatus (Switzerland, Obwalden). The new species is morphologically most similar to E. matura (Loginova, 1972), a species from Mongolia, from which it differs in the light genal processes and in details of the terminalia. Eryngiofaga consist...

Nothotrioza is a small genus of jumping plant lice comprising three described species in Brazil and one in the USA (Florida) that induce galls on the leaves of their myrtaceous hosts. The galls of the Brazilian species are globoid and associated with Psidium spp.; those from Florida are pouch galls on Mosiera. Here we describe two new species from...

An updated check list of Psylloidea from the Korean Peninsula is provided with information on the distribution of each species within the Peninsula and host plants based on published records and our own extensive field surveys. Five species (Calophya phellodendri Loginova, Calophya rhopenjabensis Li, Cacopsylla initialis (Loginova), Cacopsylla sibi...

Cacopsylla nasuta (Horváth), which is newly recorded from Iran, is redescribed based on specimens collected on Hippophae rhamnoides. The species is morphologically similar to but distinct from Cacopsylla hippophaes (Foerster). Morphological characters are discussed for separating the two taxa. It is concluded that C. nasuta is restricted to the mou...

Während einer dreitägigen Untersuchung verschiedener Tiergruppen auf der Alp Flix vom 2. bis 4. Juli 2021 wurden 281 Arten nachgewiesen. Darunter sind 114 Erstnachweise für die Alp Flix, zwei Neufunde für Graubünden und sogar drei Erstnachweise für die Schweiz. Diese Funde zeigen eindrücklich, dass auch 20 Jahre nach dem GEO-Tag der Artenvielfalt i...

Permoridium fresenaci gen. et sp. nov., the oldest putative representative of the bug suborder Coleorrhyncha is described from the lower Permian of Germany, in the new family Permoridiidae. The main autapomorphies of the new taxon are the separation of M+CuA from R at extreme wing base and the veins CuP and PCu strongly appressed. Its position in t...

INTRODUÇÃO A qualidade sanitária da plantação florestal deve ser mantida desde a fase de produção de mudas. O bom manejo do viveiro e o controle de pragas e doenças garantem uma maior sobrevivência e qualidade das mudas, o que certamente melhora o rendimento do empreendimento florestal. Vários insetos podem estar associados ao eucalipto na fase de...

Distributional records in Brazil are provided for two psyllid species, Auchmerina limbatipennis Enderlein, documented for the states of Paraná, Rio de Janeiro, Santa Catarina and São Paulo, and A. tuthilli Klimaszewski, for Paraná and Santa Catarina. Host plants for these species are reported for the first time. A. limbatipennis develops on Inga la...

Gunung Kinabalu is famous for its exceptionally diverse fauna and flora, rich in endemism. An example is the psyllid genus Ctenarytaina that is represented by four, apparently endemic species. Here two new Ctenarytaina species, C. lienhardi sp. nov. and C. smetanai sp. nov. , are described from Gunung Kinabalu. The new taxa are diagnosed, illustrat...

The psyllid fauna of the Parque Estadual Caminho dos Gerais and its surroundings is described based on a recent survey. Twenty three species are recorded from the municipalities of Gameleiras, Mamonas, and Monte Azul from where no previous records are known. Ten of the species are described, three are provisionally referred to described species due...

Cacopsylla permixta and Cacopsylla bidens are major pests of pears in Iran. They are commonly sprayed with various insecticides up to 12 times a year but control by these means is no longer reliable, suggesting the evolution of resistance. Here, we report about 60-fold variation in diazinon susceptibility both among five geographic populations of C...

Mitrapsylla rupestris sp. nov. , associated with Poiretia bahiana C. Mueller (Fabaceae, Faboideae, Dalbergieae), is described, diagnosed and illustrated. The new species is morphologically similar to M. aeschynomenis , M. aurantia , M. cubana and M. didyma from which it differs in details of the terminalia and the host plant. Poiretia constitutes a...

en During regular inspections of plants in the Latakia Governorate, Syria, two psyllid species previously unknown from Syria were discovered. These are Phylloplecta trisignata (Löw) from Rubus sp. and Trioza brevigenae Mathur from Ficus microcarpa. Both are new records for Syria. For T. brevigenae this is also only the second record of this species...

Diaphorina (Psyllidae: Diaphorininae) is a large Old World genus with an unusually wide range of host plants. Its most prominent member is undoubtedly the Asian citrus psyllid, Diaphorina citri, one of the most devastating citrus pests in tropical Asia and the New World where it is adventive. Recently, the species also was discovered in Africa wher...

The purpose of this application, under Article 23.9.3 of the Code, is to conserve the usage of the generic name Ctenarytaina Ferris & Klyver, 1932 for a genus of psyllids (Insecta, Hemiptera) from tropical and subtropical regions around the world. This name, which has been used in hundreds of works in recent decades, is threatened by a purported se...

The Psylloidea (Hemiptera) comprise ~4,000 species of small sap-feeding insects known as psyllids or jumping plant-lice. We summarize species composition of the nonnative psyllid fauna in North America and review detection records, current distributions, host use, life histories, and geographical sources. Forty-six species are considered to be nonn...

Homotoma chlamydodora Hollis & Bromfield, 1989 (Homotomidae) and Pauropsylla tatrichea Hollis, 1984 (Triozidae) are two poorly known psyllid species that develop on Ficus vallis-choudae. Based on material collected within the framework of biodiversity studies of psyllids (Hemiptera: Psylloidea) associated with Ficus spp. (Moraceae) in Cameroon, the...

Blastopsylla occidentalis Taylor,1985 (Hemiptera: Aphalaridae) é um psilídeo que tem como hospedeiro o eucalipto, originário da Austrália, foi introduzido no Brasil em meados da década de 1990. Devido à escassez de informações a respeito da biologia desse inseto, este trabalho teve como objetivo conhecer o efeito da temperatura no desenvolvimento e...

The classification of the superfamily Psylloidea is revised to incorporate findings from recent molecular studies, and to integrate a reassessment of monophyla primarily based on molecular data with morphological evidence and previous classifications. We incorporate a reinterpretation of relevant morphology in the light of the molecular findings an...

Queiroziella gen. nov., a new genus of Psylloidea (Psyllidae, Ciriacreminae), is erected for five new species developing on the multipurpose tree Mimosa scabrella (Leguminosae, Caesalpinioideae, mimosoid clade): viz. Queiroziella erato sp. nov., Q. euterpe sp. nov., Q. melpomone sp. nov., Q. terpsichore sp. nov. and Q. thalia sp. nov. Another speci...

Diaphorina is a species-rich genus, native to the tropics and subtropics of the Old World, particularly of more arid regions. One of the species, Diaphorina citri, is the economically most important pest of citrus. Diaphorina species are morphologically similar which makes their identification difficult. In this study, the accuracy of DNA barcoding...

Twelve Ctenarytaina species with confirmed or suspected associations with Syzygium are revised. The following six new species are diagnosed, described and illustrated: Ctenarytaina baliota Burckhardt sp. nov. (from Malaysia: Sabah), C. daleae Burckhardt sp. nov. (Malaysia: Sabah), C. loebli Burckhardt sp. nov. (Malaysia: Sabah), C. melanota Burckha...

The introduction of Australian psyllids to non-native ranges across the globe is continually increasing. This is due to an increase in global trade and human movement, exacerbated by climate change. Several psyllids have been recorded as pests of eucalypts in the native range of these trees. With the current trend of eucalypt pest introductions, th...

The Brazilian species of Mitrapsylla, a Neotropical genus of jumping plant-lice, are reviewed. Twenty-seven species are described as new, and one species originally described from Panama is recorded for the first time from Brazil. This brings the number of Brazilian species from 12 to 40 and for the Neotropical region to 51. The new species are ill...

Apple proliferation is an economically important disease and a threat for commercial apple cultivation. The causative pathogen, the bacterium ‘Candidatus Phytoplasma mali’, is mainly transmitted by Cacopsylla picta, a phloem-feeding insect that develops on the apple tree (Malus spp.). To investigate the feeding behavior of adults of the phytoplasma...

The Neotropical species of the predominantly north temperate genus Aphalara are reviewed. Four species are recorded here from this region, two of which are described as new. Aphalara ritteri sp. nov. occurs in southern Brazil (Paraná, Rio Grande do Sul, Santa Catarina) and represents the first and only species reported from South America. A second...

Amecephala pusilla gen. et sp. nov. is described and illustrated on the basis of a well-preserved female psyllid (Liadopsyllidae) in a piece of Cretaceous Myanmar amber. The new genus differs from other members of Liadopsyllidae in details of the antennae and forewings. For the first time, the presence of a circumanal ring is documented for Mesozoi...

Psyllids are an economically important group of insects. Several species are serious emerging pests with regulatory significance. About 20 adventive species have been discovered in Florida in the past 20 years, including several pests. Additionally, five species new to science have been found. We provide an annotated checklist of Florida species wi...

Os psilídeos são insetos pequenos que se alimentam do floema e se caracterizam por apresentarem uma pequena faixa de plantas hospedeiras em que se desenvolvem. Este trabalho teve como objetivo prospectar e identificar insetos da superfamília de Psylloidea que ocorrem associados a diferentes biomas no Mato Grosso e que resultou na coleta de 29 gêner...

Trioza turouguei sp. nov., a new species of jumping plant lice (Hemiptera, Triozidae) from Taiwan, is described and illustrated based on adults and immatures. The latter induce pea-shaped galls on the stems of Cinnamomum osmophloeum Kaneh. (Lauraceae). The gall phenology of the new species is described. A list of species of Triozidae associated wit...

Este artigo relata a primeira ocorrência conhecida de Psyllaephagus blastopsyllae Tamesse et al., 2014 (Hymenoptera: Encyrtidae) em Mato Grosso, Brasil. A microvespa parasita imaturos do psilídeo Blastopsylla occidentalis Taylor, 1985 (Hemiptera: Aphalaridae), uma praga em plantações de eucalipto em Sinop, MT. Imaturos de B. occidentalis foram cole...

In a faunistic survey of the jumping plant-lice (Hemiptera: Psylloidea) in the province of Kerman, Iran, in 2016‒2017, one undescribed species, Cacopsylla paraspiculata Lashkari & Burckhardt, sp. nov., and one species new for Iran, Colposcenia orientalis (Klimaszewski, 1970), were collected. Descriptions and illustrations are provided for the two s...

Criação de Blastopsylla occidentalis (Hemiptera: Aphalaridae) - psilídeo das ponteiras do eucalipto, em casa de vegetação

The Detarieae, a small tribe of tropical arborescent Leguminosae, has been reported as host of two species of jumping plant-lice: the Neotropical Macrocorsa beeryi (Caldwell) on Hymenaea courbaril and the Afrotropical Retroacizzia mopanei (Pettey) on Colophospermum mopane. Here we add from Brazil 18 new species of Colophorina, Jataiba gen. nov. and...

Pear psyllids (Hemiptera: Psylloidea: Psyllidae: Cacopsylla spp.) belong to the most serious pests of pear ( Pyrus spp.). They damage pear trees by excessive removal of phloem sap, by soiling the fruits with honeydew which, in turn, provides a substrate for sooty mould, and by transmission of Candidatus Phytoplasma spp., the causal agents of the pe...

For a long time, Dutch entomologists showed limited interest in jumping plant lice (or psyllids). The most recent species list of the Netherlands dates back to 1926. Since then only a few short papers have appeared. This is surprising as some species are important agricultural pests. The pear psyllid causes harvest loss worth several tens of millio...

Species of Agonoscena (Hemiptera: Aphalaridae) are key pests of pistachio in all of the most important pistachio producing countries in the Old World. The efficiency and accuracy of DNA barcoding for the identification of Agonoscena species were tested using mitochondrial cytochrome c oxidase subunit 1 ( mtCO1 ) and cytochrome b ( cytb ) gene seque...

Ceropsylla pouteriae Burckhardt sp. nov. is described and illustrated from Brazil: Minas Gerais. It induces pit galls on the leaves of Pouteria ramiflora (Mart.) Radlk. (Sapotaceae), a characteristic tree of the Cerrado biome. The previously artificial genus Ceropsylla is redefined and six species are transferred from Ceropsylla to Trioza as Trioza...

The fauna of Psylloidea from Madeira Archipelago and Selvagens Islands is updated with the addition of four new records: Acizzia uncatoides, Cacopsylla fulguralis, Ctenarytaina spatulata and Platycorypha nigrivirga. The list of psyllids known from these islands now comprises 21 species. Two species of psyllids are cited for the first time from Selv...

The fifth insect camp of the Entomological Society of Austria (ESA) was conducted from April 27 to May 2, 2018. Many of the 39 participants were recognized experts on different arthropod groups. Fifty-seven localities within and nearby the Donau-Auen National Park were investigated, and a total of 1265 invertebrate species identified: 8 Collembola,...

Biological and geoscience collections form an important part of our rich scientific heritage and provide the basis for much of what we know today about our planet and how we humans have influenced it. Natural history collections help us to understand our past and present better, thereby providing a basis for predicting the future. They also serve a...

Padaukia macrolobii sp. nov. (Psyllidae, Psyllinae) is described from Brazil (states of Amazonas, Mato Grosso and Roraima). Adults were collected in two localities on the fabaceous tree Macrolobium acaciifolium which is a likely host. This is the first find of Padaukia in the Neotropics previously known only from Africa and Asia. The discovery docu...

A checklist comprising information on taxonomy, distribution and host plants is provided for 161 species of jumping plant-lice from the Indian subcontinent (Bangladesh, Bhutan, India, Pakistan, Sri Lanka) based on published records and museum material. In addition there are 15 species recorded in the literature which are identified to genus only. M...

Moriphila furva Burckhardt & Cho, gen. and sp. nov., is described from the mountain region in north eastern South Korea. Adults were collected on Morus australis which is a likely host. We provide morphological evidence that the new monotypic genus constitutes the probable sister group of the afrotropical Phytolyma whose species develop on Milicia...

The eucalypt shoot psyllid, Blastopsylla occidentalis Taylor, 1985 (Hemiptera: Psylloidea), is reported here for the first time from Burundi, Indonesia (Sumatra), Nicaragua, the Philippines and Yemen. The record from Paraguay is shown to be erroneous. New state records are given for the Brazilian states Bahia, Ceará, Piauí and Rio Grande do Sul. Eu...

Brazilian peppertree, Schinus terebinthifolia Raddi (Anacardaceae), native to Argentina, Brazil, Paraguay, and Uruguay, is one of the most invasive weeds in Florida. In its native range, at least 4 psyllid species of the genus Calophya (Hemiptera: Calophyidae) are associated with it. All 4 species are monophagous and constitute a likely monophyleti...

The jumping plant-louse Triozoida limbata is monophagous on guava (Psidium guajava), inducing leaf galls. Guava is planted today in warmer regions around the world but T. limbata is restricted to Central and South America. Recently, the latter has become a key pest in commercial plantations in Brazil (Pernambuco and São Paulo). Modeling of potentia...

Understanding evolutionary relationships in the superfamily Psylloidea is challenging due to the lack of clear morphological synapomorphies for many groups. Some families and many of the genera, including the two largest, Cacopsylla Ossiannilsson and Trioza Foerster, have long been acknowledged as nonmonophyletic and the circumscription of natural...

During a faunistic survey of the jumping plant-lice (Hemiptera: Psylloidea) in the Iranian province of Kerman in spring 2015, Cacopsylla dissimilis (Baeva) comb. nov. was collected on Salix pycnostachya. This species was previously known only from Tajikistan. It is reported here for the first time from Iran. The host species, Salix pycnostachya, is...

The moss bugs of the Peloridiidae, a small group of cryptic and mostly flightless insects, is the only living family in Coleorrhyncha (Insecta: Hemiptera). Today 37 species in 17 genera are known from eastern Australia, New Zealand, New Caledonia and Patagonia, and the peloridiids are thereby a group with a classical southern Gondwanan distribution...

A detailed morphological study of adult and immature Trioza buxtoni Laing, 1924 (Hemiptera: Psylloidea: Triozidae) shows that the species belongs to the tropical and subtropical genus Pauropsylla Rübsaamen, 1899 to which it is transferred. The adult of Pauropsylla buxtoni (Laing, 1924) comb. nov. is redescribed and the previously unknown immatures...

The confused taxonomy of the east Palaearctic pear psyllids, serious pests on cultivated pear, is reviewed. Fifty-six nominal species have been reported from Pyrus, 25 of which we consider valid and ten as not being associated with Pyrus. Our taxonomic revision suggests that, in Korea, four Cacopsylla species develop on pear: the univoltine C. burc...

Jumping plant-lice (Hemiptera: Sternorrhyncha: Psylloidea) are a group of phloem-feeding insects with nearly 4000 described species. Previous records from Colombia comprise 19 genera of all eight known families. The revision of material deposited in six Colombian and three foreign museums yielded another nine genera that constitute new country reco...

Four new Trioza species associated with mistletoes are described, diagnosed and illustrated from Brazil and Chile. They are monophagous on the Loranthaceae Struthanthusuraguensis ( Triozastruthanthisp. n. ), Tripodanthusacutifolius ( Triozatripodanthisp. n. ) and narrowly oligophagous on Tristerix spp. ( Triozatristericissp. n. ). For a fourth spec...