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Limothrips angulicornis Jablonowski, 1894 is newly recorded for the fauna of China. The genus Limothrips Haliday, 1836 (Thysanoptera: Thripidae) now includes three species in China. In addition, two previously recorded Limothrips species were also distributed in Palaearctic region of China, and there is no record in south and east of China, Oriental region. A key is provided to identifying of Chinese species of the genus Limothrips.

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The genus Thrips Linnaeus (Thripidae: Thripinae) is one of the largest groups of thrips in Iran, which include some important pests. Majority species of the genus Thrips are herbivorous living on leaves and flowers on different plant families. In this paper, a key to 31 Iranian Thrips species is provided, along with additional new distribution information of 17 species in Iran.

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Four genera and five species of Idolothripinae are recorded in Iran: Allothrips Hood, Compsothrips Reuter and Pseudocryptothrips Priesner each with one species, and Megathrips Targioni-Tozzetti with 2 species. In this paper, the genus Nesothrips Kirkaldy, with one species N. brevicollis (Bagnall) collected on grasses in Marivan, Kurdistan Province, is recorded in Iran for the first time. A key is provided to distinguish five Idolothripinegenera from Iran. Diagnostic morphological characters and geographical distribution of the newly recorded species are briefly discussed.    

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The distribution of Dendrothrips aspersus Bhatti, a leaf-feeding thrips species, has so far been confined to India and Iran. Both sexes of the species were collected from olive suckers from Fars province, south of Iran. The male sex of Dendrothrips aspersus is recorded and described. The females had been previously collected on grasses in the same place, so the host association for this species is discussed briefly.

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The grass-living thripid species, Bregmatothrips willcocksi (Priesner) is recorded for the first time from Iran on the basis of materials of both sexes collected on Johnson grass, Sorghum halepense (family Poaceae). This is the second member of the genus Bregmatothrips from Iran and in contrast to most species in the genus has forked sense cones on antennal segments III and IV. An Illustrated key is provided for distinguishing B. willcocksi and B. bournieri Pelikan.

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Taeniothrips inconsequens (Uzel) of the subfamily Thripinae (Thysanoptera: Thripidae) collected on flowers from Doha is reported in this paper, which represents the first record of both the genus and the species from Qatar. Morphological characters and geographical distribution of the newly recorded thrips are given.  

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The objective of this study was to identify the species of thrips associated with rice crops in order to determine population fluctuation of the dominant species. Studies were conducted during the month of April to August in the year 2017 form different growth stages of rice in Babolsar city, Mazandaran Province (Northern Iran). Samplings were done from four fields located at two sites, KeyxaMahalle and MirBazar. A total of seven species of thrips belonging to four genera and two families (Thripidae and Phlaeothripidae) were identified. Amongst them, Haplothrips eragrostidis Priesner was the dominant species accounting for 75.47% in abundance. This was followed by Thrips hawaiiensis Morgan comprising 6.47%. The other species include Anaphothrips sudanensis Trybom, Frankliniella intonsa (Trybom), F. tenuicornis (Uzel), Thrips tabaci Lindeman and Haplothrips flavicinctus (Karny) which comprised of4.85%, 4.32%, 4.31%, 4.04% and 0.54% respectively. The maximum number of thrips species was found in the middle of July and minimum in the month of May. Assessment of thrips abundance in rice fields were started at the beginning of dough stage and were continued until complete maturity.

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The genus and species, Sinuothrips hasta Collins, was identified based on specimens of both sexes collected from Phragmites and an unkown species of Asteraceae in Fars province. This genus is known previously only from England, Turkey and China. A brief diagnostic characters for the genus and species is provided and illustrated.
 

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The Western flower thrips Frankliniella occidentalis, an important greenhouse pest, has acquired rapid resistance to the chemical pesticides. Therefore, biological control is worth consideration as an alternative control method. Among the biological control agents, entomopathogenic fungi showed to be quite successful in some occasions. In this study, three Iranian isolates of Metarhizium anisopliae (‘DEMI001’, ‘DEMI002’ and ‘DEMI003’) were bioassayed for their lethal effects on the adults of the F. occidentalis, in vitro. The ‘DEMI002’ and ‘DEMI003’ had the lowest and highest LC₅₀ at concentrations of 3.06 ´ 10⁴ and 1.90 ´ 10⁵ conidia/ml, respectively. Also, the isolate ‘DEMI002’ had the lowest LT₅₀ of 4.39 ± 2.13 days at the concentration of 10⁶ conidia/ml. The mean comparison showed that there was a significant difference between DEMI002 and DEMI003 in terms of virulence at most of the concentrations. Consequently, the ‘DEMI002’ can be considered as a promising tool in biological control programs of the F. occidentalis.

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Three species of the genus Helionothrips Bagnall, namely Helionothrips cephalicus Hood, H. mube Kudo and H. unitatus Chen were collected and identified for the first time from India. Geographical distribution and diagnostic characters for the newly recorded species and a key to identify all the species of Helionothrips recorded so far from India is also provided.

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The genus Taeniothrips Amyot & Serville is belonging in the subfamily Thripinae with only one species in Iran. Here, the second species, T. eucharii (Whetzel) is newly recorded from the country. Male and female specimens of this species have been collected on the flowers of Ixiolirion tataricum (Amaryllidaceae) from Ilam province (west of Iran).

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Adult Thysanoptera occur within plant galls for various reasons and use of the term “gall-thrips” without defining the particular relationship is uninformative and misleading. Apart from inducing a gall, a thrips may be found in a gall as a predator feeding on the galler, as a kleptoparasite feeding on plant cells and usurping the protective space induced by the galler, as a phytophagous inquiline breeding in low numbers in a gall without disturbing the galler, or as a casual visitor seeking protection from desiccation. These various relationships are discussed in the light of how little is known about the phylogenetic relationships amongst the Phlaeothripidae, the thrips family that includes most of the galling thrips species. Host associations amongst thrips, including the galling habit, are largely opportunistic, with few examples of a close relationship between thrips and plants above the level of genus in either group.

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Two species, Thrips golili sp. nov. and Thrips silybum sp. nov. are described from flowering plants of northeastern Iran. The color forms of T. golili sp. nov. are discussed. Thrips apicatus Priesner is reported for the first time from Kish Island in the Persian Gulf. Published record as of T. coloratus Schmutz and T. juniperinus Linnaeus from Iran are not confirmed and description of T. alavii Mirab-balou, Tong & Chen is considered doubtful here. The checklist of Iranian Thrips is updated to contain 37 species.

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The genus Thrips Linnaeus (Thysanoptera: Thripidae) with 37 species, is the largest genus in Thripinae from Iran. However, Thrips coloratus Schmutz was excluded from Iranian thrips because of its misidentification. Here, this species is recorded from Iran for the first time based on two specimens collected on the flowers of clover (Fabaceae) from Ilam province.

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The genus and species of fungus-feeding thrips, Tylothrips osborni (Hinds), are newly recorded from Turkey based on two apterous females collected from wheat. Taxonomic characterization of the genus and species is provided and illustrated. This is the sixth record in Europe of this American species, and the significance of this disjunct distribution is discussed.

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Thrips species injurious to grapes are known as pests in vineyards all over the world and belong to the main pests of grapes in West Azarbaijan, Iran. In this study, thrips species occurring in West Azarbaijan vineyards were identified and the predominant species documented according to their relative abundance at different growth stages. The seasonal abundance of predominant species was investigated by means of yellow sticky trap catches and weekly sampling from vegetative and reproductive organs of vines. Five species including: Rubiothrips vitis (Priesner), Thrips tabaci Lindeman, Tenothrips discolor (Karny), Tenothrips reichardti (Priesner), and Limothrips angulicornis Jablonowski, were collected and identified. R. vitis, constituting 92 and 66 percent of the thrips population on vegetative and reproductive organs, respectively, was found to be predominant. T. tabaci was not found on vegetative organs, but it was found to constitute 32 percent of the thrips found on reproductive organs (flowers). The two species R.vitis and T. reichardti are new records for the Iranian fauna. The number of adult thrips caught by sticky traps was positively correlated with the density of the adults on vegetative (buds and leaves) and reproductive (flower) organs in the first and second generations, respectively.

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The American species, Tylothrips osborni (Hinds) is reported for the first time from Iran and presented with detailed photos. The single macropterous female, which has been collected in the Ilam province, shows an unusual variation regarding the number of sense cones on antennal segment III. This variation affects both antennae in form of a reduction of the number of sense cones.

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The monotypic genus Fulmekiola Karny of Thrips genus-group (Thripidae: Thripinae) is recorded in Iran for the first time. This is the sixth member of this group recorded from Iran after Microcephalothrips (one species), Sphaerothrips (one species), Stenchaetothrips (2 species), Stenothrips (one species) and Thrips (35 species). Diagnostic characters and the geographical distribution of the newly recorded thrips, Fulmekiola serrata (Kobus) are provided along with an updated key to genera of the Iranian Thrips-group.

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Montpellier maple Acer monspessulanum L. is one of the trees in Zagros forests (Iran) which is host to several economically important thrips species. The purpose of this study was to find the fauna of thrips on Montpellier maple trees in Ilam province, western Iran, during 2015-2016. The abundance and species diversity of thrips were examined twice a month via standard sweep net and shaking flowers and leaves to white plastic tray at two location sites including Gachan and Manesht Mountains. Out of the 7062 thrips specimens that were collected, 16 thrips species were identified, which belonged to 10 genera and four families. The estimated domination coefficient showed that in both sites Taeniothrips inconsequens Uzel was eudominant and onion thrips, Thrips tabaci Lindeman was dominant species. There were 5 and 4 species classified as subdominant for Gachan and Manasht, respectively. Four predatory thrips were found on Montpellier maple trees including Aeolothrips intermedius Bagnall, Scolothrips longicornis Priesner, Haplothrips flavitibia Williams and H. globiceps. Of these, A. intermedius was the most abundant predator in both collection sites, whereas others showed a low population density. According to diversity index calculations, the Shannon diversity, Pielou’s evenness and Margalef’s species richness indices were 1.83, 0.68 and 1.67 for Gachan, and 1.48, 0.62 and 1.26 for Manesht, respectively. 

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The fungus feeding genus Preeriella Hood is reported first time based on Preeriella armigera Okajima, collected on leaf litter from West Bengal, India. Another phlaeothripid species Hoplandrothrips ochraceus Okajima & Urushihara is recorded from India for the first time. Specimens of H. ochraceus were collected on Curcuma species (rhizomatous annual or perennial herb) belonging to family Zingiberaceae. Notes on the material examined, distribution, diagnostic characters and illustration for the new records are presented.