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Dr. Andrew Johnson
'%3e%3cpath%20d='M22.1642%2019.0924C21.7317%2018.068%2021.1041%2017.1375%2020.3163%2016.3527C19.5309%2015.5656%2018.6006%2014.9381%2017.5766%2014.5048C17.5674%2014.5002%2017.5582%2014.4979%2017.5491%2014.4933C18.9774%2013.4616%2019.9059%2011.7811%2019.9059%209.88504C19.9059%206.74408%2017.3611%204.19922%2014.2201%204.19922C11.0792%204.19922%208.53429%206.74408%208.53429%209.88504C8.53429%2011.7811%209.46282%2013.4616%2010.8912%2014.4956C10.882%2014.5002%2010.8728%2014.5025%2010.8636%2014.5071C9.83652%2014.9404%208.91487%2015.5617%208.1239%2016.355C7.33685%2017.1404%206.70933%2018.0707%206.276%2019.0947C5.85031%2020.0972%205.62072%2021.172%205.59967%2022.2609C5.59905%2022.2853%205.60335%2022.3097%205.61229%2022.3325C5.62123%2022.3553%205.63465%2022.376%205.65174%2022.3935C5.66883%2022.4111%205.68926%2022.425%205.71182%2022.4345C5.73437%2022.444%205.7586%2022.4489%205.78308%2022.4489H7.15868C7.25956%2022.4489%207.3398%2022.3686%207.3421%2022.2701C7.38795%2020.5001%208.09868%2018.8425%209.35506%2017.5861C10.655%2016.2862%2012.3814%2015.5709%2014.2201%2015.5709C16.0588%2015.5709%2017.7852%2016.2862%2019.0852%2017.5861C20.3415%2018.8425%2021.0523%2020.5001%2021.0981%2022.2701C21.1004%2022.3709%2021.1807%2022.4489%2021.2815%2022.4489H22.6571C22.6816%2022.4489%2022.7058%2022.444%2022.7284%2022.4345C22.751%2022.425%2022.7714%2022.4111%2022.7885%2022.3935C22.8056%2022.376%2022.819%2022.3553%2022.8279%2022.3325C22.8369%2022.3097%2022.8412%2022.2853%2022.8406%2022.2609C22.8176%2021.165%2022.5907%2020.0989%2022.1642%2019.0924ZM14.2201%2013.8284C13.1678%2013.8284%2012.1773%2013.418%2011.4322%2012.6729C10.6871%2011.9278%2010.2767%2010.9374%2010.2767%209.88504C10.2767%208.83271%2010.6871%207.84227%2011.4322%207.09715C12.1773%206.35204%2013.1678%205.94165%2014.2201%205.94165C15.2724%205.94165%2016.2629%206.35204%2017.008%207.09715C17.7531%207.84227%2018.1635%208.83271%2018.1635%209.88504C18.1635%2010.9374%2017.7531%2011.9278%2017.008%2012.6729C16.2629%2013.418%2015.2724%2013.8284%2014.2201%2013.8284Z'%20fill='%238590A2'/%3e%3c/g%3e%3c/svg%3e)
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11Years (2016-Present)
(Calculated once Scilit publication data is synced: current year − year of first publication + 1)
Representative Publications
View All Publications1 December 2019 in Florida Entomologist
Journal Article
DGDemian Gomez
Demian GomezAJAndrew Johnson
Andrew JohnsonPGPaloma Carton de Grammont
Paloma Carton de GrammontJAJanet Alfonso-Simonetti
Janet Alfonso-SimonettiJMJanelim Montaigne
Janelim MontaigneJHJiri Hulcr
Jiri Hulcr +4
We present a reassessment of the diversity of bark and ambrosia beetles in Cuba. For the first time in decades, an official Cuban-American binational collaboration allowed us to re-visit all known entomology collections in Cuba, and collect in the field. There are at least 94 species of scolytine beetles in Cuba. We report a new species, Xylosandrus aurinegro Gomez & Hulcr (Coleoptera: Curculionidae), and 7 new species records, including the first genus record for Dryocoetoides Hopkins and Tricolus Blandford (both Coleoptera: Curculionidae) for the island. In terms of species with potential concern to the USA, we corroborate a subspecies of Ips calligraphus Wood & Bright (Coleoptera: Curculionidae) that acts as a pine pest in Cuba and is not yet present in North America.
1 July 2020 in Zootaxa
Journal Article
RRRobert J. Rabaglia
Robert J. RabagliaRBRoger Beaver
Roger BeaverAJAndrew Johnson
Andrew JohnsonMSMark A. Schmaedick
Mark A. SchmaedickSSSarah M. Smith
Sarah M. SmithA survey of five of the islands of American Samoa was conducted from 2016–2018 utilizing multi-funnel traps baited with ethanol and quercivorol (attractants for xyleborine ambrosia beetles). Specimens of Scolytinae and Platypodinae from this survey, as well as specimens in the American Samoa Community College Collection were identified. A total of 53 species of Scolytinae and two species of Platypodinae are reported. Fourteen species of Scolytinae and one species of Platypodinae are reported as new to American Samoa. The following new synonymy and new combinations are proposed: Xyleborinus artelineatus (Beeson, 1929) (=Xyleborinus cinctipennis (Schedl, 1980) syn. nov.; Ambrosiophilus wilderi (Beeson, 1929) comb. nov. from Ambrosiodmus; Beaverium swezeyi (Beeson, 1929) comb. nov. from Xyleborus; and Debus fallaxoides (Schedl, 1955) comb. nov. from Xyleborus. The distribution on the islands of American Samoa and taxonomic history of each species is provided.
1 October 2018 in Molecular Phylogenetics and Evolution
Journal Article
AJAndrew Johnson
Andrew JohnsonDMDuane Mckenna
Duane MckennaBJBjarte Jordal
Bjarte JordalACAnthony Cognato
Anthony CognatoSSSarah M. Smith
Sarah M. SmithJHJiri Hulcr
Jiri Hulcr +2
1 May 2020 in Insect Systematics and Diversity
Journal Article
AJAndrew Johnson
Andrew JohnsonJHJiri Hulcr
Jiri HulcrMKMiloš Knížek
Miloš Knížek
TAThomas H Atkinson
Thomas H Atkinson
MMMichail Yu Mandelshtam
Michail Yu Mandelshtam
BJBjarte H Jordal
Bjarte H Jordal
+4
Cryphalini Lindemann, 1877 are a speciose group of mostly miniscule beetles. The tribe Cryphalini is reviewed here which resulted in taxonomic and nomenclatural changes. This revision follows a recent molecular phylogenomic re-analysis focused on the tribe and related scolytine taxa. The analysis demonstrated that the tribe is polyphyletic, as found in other molecular phylogenies. To ensure monophyletic classification, we present a revision of the former tribe with two tribes resurrected, one described, and several genera transferred to other existing tribes. Additionally, extensive generic synonymy, and new combinations are presented. A key, photographs, and illustrations are provided to enable an accurate determination of genera. The revised Cryphalini contains only CryphalusErichson, 1836 (=Hypocryphalus Hopkins, 1915 syn. nov.; Margadillius Hopkins, 1915 syn. nov.). Coriacephilini Johnson trib. nov. contains only Coriacephilus Schedl, 1939. Ernoporini Nüsslin, 1911 stat. res. contains EidophelusEichhoff, 1876 (=Scolytogenes Eichhoff, 1878 syn. nov.; PtilopodiusHopkins, 1915,syn. nov.; ErnoporicusBerger, 1917,syn. nov.; CryphalogenesWood, 1980,syn. nov.); ErnoporusThomson, 1859 (=ErnocladiusWood, 1980,syn. nov.; AllothenemusBright and Torres, 2006,syn. nov.); Hemicryphalus Schedl, 1963; and ProcryphalusHopkins, 1915. Trypophloeini Nüsslin, 1911 stat. res. includes the genera Afrocosmoderes Johnson and Jordal gen. nov.; AtomothenemusBright, 2019; Cosmoderes Eichhoff, 1878 (=AllernoporusKurentsov, 1941,syn. nov.); HypothenemusWestwood, 1834 (=PeriocryphalusWood, 1971,syn. nov.); MacrocryphalusNobuchi, 1981,stat. res.; Microcosmoderes Johnson and Jordal gen. nov.; MicrosomusBright, 2019; PygmaeoborusBright, 2019; and TrypophloeusFairmaire, 1864. Xyloterini LeConte, 1876 is maintained, containing Indocryphalus Eggers, 1939; TrypodendronStephens, 1830 and XyloterinusSwaine, 1918. AcorthylusBrèthes, 1922, CryptocarenusEggers, 1937, Neocryphus Nunberg, 1956, Stegomerus Wood, 1967, and TrypolepisBright, 2019 are transferred to Corthylini LeConte, 1876. Stephanopodius Schedl, 1963 is transferred to Xyloctonini Eichhoff, 1878. As a consequence of generic synonymy, the following new or resurrected combinations are proposed: Cosmoderes euonymi (Kurentsov, 1941) comb. nov.; Cryphalus aciculatus (Schedl, 1939) comb. nov.; Cryphalus afiamalus (Schedl, 1951) comb. nov.; Cryphalus angustior Eggers, 1927 comb. res.; Cryphalus asper (Broun, 1881) comb. nov.; Cryphalus bakeri (Eggers, 1927) comb. nov.; Cryphalus basihirtusBeeson, 1929,comb. nov.; Cryphalus bidentatus (Browne, 1980) comb. nov.; Cryphalus brevior (Schedl, 1943) comb. nov.; Cryphalus carinatus (Browne, 1980) comb. nov.; Cryphalus confusus (Hopkins, 1915) comb. nov.; Cryphalus corpulentus (Schedl, 1942) comb. nov.; Cryphalus cylindripennis (Schedl, 1959) comb. nov.; Cryphalus cylindrus (Browne, 1950) comb. nov.; Cryphalus densepilosus (Schedl, 1942) comb. nov.; Cryphalus dilutus Eichhoff, 1878 comb. res.; Cryphalus discrepans (Schedl, 1965) comb. nov.; Cryphalus discretus Eichhoff, 1878 comb. res.; Cryphalus erythrinae (Hopkins, 1915) comb. nov.; Cryphalus fici (Browne, 1986) comb. nov.; Cryphalus glabratus (Schedl, 1959) comb. nov.; Cryphalus granulatus (Schedl, 1942) comb. nov.; Cryphalus imitans (Schedl, 1951) comb. nov.; Cryphalus interponens (Schedl, 1953) comb. nov.; Cryphalus kalambanganus (Schedl, 1943) comb. nov.; Cryphalus laevis (Browne, 1980) comb. nov.; Cryphalus laticollis (Browne, 1974) comb. nov.; Cryphalus longipennis (Browne, 1970) comb. nov.; Cryphalus longipilis (Browne, 1981) comb. nov.; Cryphalus magnus (Browne, 1984) comb. nov.; Cryphalus malayensis (Schedl, 1942) comb. nov.; Cryphalus mangiferaeStebbing, 1914,comb. res.; Cryphalus margadilaonis (Hopkins, 1915) comb. nov.; Cryphalus mindoroensis (Schedl, 1943) comb. nov.; Cryphalus minor (Schedl, 1943) comb. nov.; Cryphalus minutus (Hopkins, 1915) comb. nov.; Cryphalus mollis Schedl, 1955 comb. res.; Cryphalus moorei (Schedl, 1964) comb. nov.; Cryphalus nigrosetosus (Schedl, 1948) comb. nov.; Cryphalus nitidicollis (Schedl, 1975) comb. nov.; Cryphalus obscurus (Hopkins, 1915) comb. nov.; Cryphalus ovalicollis (Schedl, 1942) comb. nov.; Cryphalus papuanus (Schedl, 1973) comb. nov.; Cryphalus piliger (Schedl, 1975) comb. nov.; Cryphalus polynesiae (Schedl, 1979) comb. nov.; Cryphalus quadrituberculatus (Schedl, 1963) comb. nov.; Cryphalus reflexus (Browne, 1980) comb. nov.; Cryphalus robustus Eichhoff, 1872 comb. res.; Cryphalus rotundus (Hopkins, 1915) comb. nov.; Cryphalus sandakanensis Schedl, 1937 comb. res.; Cryphalus spathulatus (Schedl, 1938) comb. nov.; Cryphalus striatulus (Browne, 1978) comb. nov.; Cryphalus striatus (Hopkins, 1915) comb. nov.; Cryphalus sumatranus (Schedl, 1939) comb. nov.; Cryphalus triangularis (Schedl, 1975) comb. nov.; Cryphalus tutuilaensis (Schedl, 1951) comb. nov.; Eidophelus absonus (Schedl, 1975) comb. nov.; Eidophelus afer (Schedl, 1970) comb. nov.; Eidophelus africanus (Schedl, 1977) comb. nov.; Eidophelus aitutakii (Beaver and Maddison, 1990) comb. nov.; Eidophelus alniphagus (Nobuchi, 1975) comb. nov.; Eidophelus alternans (Schedl, 1975) comb. nov.; Eidophelus amanicus (Eggers, 1919) comb. nov.; Eidophelus ankius (Schedl, 1979) comb. nov.; Eidophelus apicalis (Schedl, 1971) comb. nov.; Eidophelus approximatus (Schedl, 1975) comb. nov.; Eidophelus aspericollis (Eichhoff, 1878) comb. nov.; Eidophelus ater (Eggers, 1923) comb. nov.; Eidophelus australis (Schedl, 1942) comb. nov.; Eidophelus badius (Nobuchi, 1975) comb. nov.; Eidophelus bambusae (Browne, 1983) comb. nov.; Eidophelus bangensis (Eggers, 1927) comb. nov.; Eidophelus basilaris (Wood, 1960) comb. nov.; Eidophelus birosimensis (Murayama, 1958) comb. nov.; Eidophelus braderi (Browne, 1965) comb. nov.; Eidophelus brimblecombei (Schedl, 1972) comb. nov.; Eidophelus buruensis (Eggers, 1926) comb. nov.; Eidophelus camelliae (Nobuchi, 1975) comb. nov.; Eidophelus candidus (Nobuchi, 1975) comb. nov.; Eidophelus capucinus (Schedl, 1971) comb. nov.; Eidophelus caucasicus (Lindemann, 1877) comb. nov.; Eidophelus ceylonicus (Schedl, 1959) comb. nov.; Eidophelus cicatricosus (Schedl, 1942) comb. nov.; Eidophelus coccotrypanoides (Schedl, 1939) comb. nov.; Eidophelus communis (Schaufuss, 1891) comb. nov.; Eidophelus confragosus (Sampson, 1914) comb. nov.; Eidophelus corni (Kurentsov, 1941) comb. nov.; Eidophelus corpulentus (Schedl, 1965) comb. nov.; Eidophelus corrugatus (Schedl, 1950) comb. nov.; Eidophelus creber (Schedl, 1975) comb. nov.; Eidophelus crenatus (Sampson, 1914) comb. nov.; Eidophelus cylindricus (Schedl, 1959) comb. nov.; Eidophelus darwini (Eichhoff, 1878) comb. nov.; Eidophelus devius (Schedl, 1975) comb. nov.; Eidophelus dubiosus (Wood, 1960) comb. nov.; Eidophelus eggersi (Schedl, 1962) comb. nov.; Eidophelus euphorbiae (Wood, 1980) comb. nov.; Eidophelus excellens (Schedl, 1979) comb. nov.; Eidophelus exiguus (Wood, 1980) comb. nov.; Eidophelus exilis (Yin, 2001) comb. nov.; Eidophelus eximius (Schedl, 1942) comb. nov.; Eidophelus expers (Blandford, 1894) comb. nov.; Eidophelus fagi (Fabricius, 1798) comb. nov.; Eidophelus fijianus (Schedl, 1950) comb. nov.; Eidophelus formosanus (Browne, 1981) comb. nov.; Eidophelus fugax (Schedl, 1975) comb. nov.; Eidophelus fujisanus (Nobuchi, 1975) comb. nov.; Eidophelus fulgens (Schedl, 1975) comb. nov.; Eidophelus fulgidus (Schedl, 1975) comb. nov.; Eidophelus fulvipennis (Nobuchi, 1975) comb. nov.; Eidophelus ghanaensis (Schedl, 1977) comb. nov.; Eidophelus glabratus (Yin, 2001) comb. nov.; Eidophelus gracilis (Schedl, 1950) comb. nov.; Eidophelus granulatus (Wood, 1960) comb. nov.; Eidophelus grobleri (Schedl, 1962) comb. nov.; Eidophelus hirtus (Wood, 1974) comb. nov.; Eidophelus hobohmi (Schedl, 1955) comb. nov.; Eidophelus hylesinopsis (Schedl, 1975) comb. nov.; Eidophelus incultus (Yin, 2001) comb. nov.; Eidophelus indicus (Wood, 1989) comb. nov.; Eidophelus insularis (Nobuchi, 1975) comb. nov.; Eidophelus insularum (Krivolutskaya, 1968) comb. nov.; Eidophelus jalappae (Letzner, 1849) comb. nov.; Eidophelus javanus (Schedl, 1942) comb. nov.; Eidophelus kanawhae (Hopkins, 1915) comb. nov.; Eidophelus landolphiae (Schedl, 1961) comb. nov.; Eidophelus leprosulus (Browne, 1974) comb. nov.; Eidophelus longipennis (Eggers, 1936) comb. nov.; Eidophelus magnocularis (Yin, 2001) comb. nov.; Eidophelus marquesanus (Beeson, 1935) comb. nov.; Eidophelus mauritianus (Schedl, 1965) comb. nov.; Eidophelus micans (Eggers, 1927) comb. nov.; Eidophelus minor (Eggers, 1927) comb. nov.; Eidophelus minutissimus (Schedl, 1943) comb. nov.; Eidophelus mus (Schedl, 1975) comb. nov.; Eidophelus nanulus (Wood, 1960) comb. nov.; Eidophelus nigellatus (Schedl, 1950) comb. nov.; Eidophelus nubilus (Wood, 1960) comb. nov.; Eidophelus ocularis (Schedl, 1965) comb. nov.; Eidophelus onyanganus (Schedl, 1941) comb. nov.; Eidophelus opacus (Schedl, 1959) comb. nov.; Eidophelus pacificus (Schedl, 1941) comb. nov.; Eidophelus papuanus (Schedl, 1974) comb. nov.; Eidophelus papuensis (Wood, 1989) comb. nov.; Eidophelus paradoxus (Wood, 1992) comb. nov.; Eidophelus parvus (Hopkins, 1915) comb. nov.; Eidophelus pityophthorinus (Schedl, 1943) comb. nov.; Eidophelus pleiocarpae (Schedl, 1957) comb. nov.; Eidophelus polisquamosus (Yin, 2001) comb. nov.; Eidophelus praeda (Browne, 1978) comb. nov.; Eidophelus puerarae (Choo and Woo, 1989) comb. nov.; Eidophelus pumilionides (Schedl, 1977) comb. nov.; Eidophelus pumilus (Wood, 1960) comb. nov.; Eidophelus punctatulus (Nobuchi, 1976) comb. nov.; Eidophelus punctatus (Schedl, 1951) comb. nov.; Eidophelus puncticollis (Schedl, 1950) comb. nov.; Eidophelus pygmaeolus (Schedl, 1971) comb. nov.; Eidophelus quadridens (Browne, 1983) comb. nov.; Eidophelus ramosus (Beeson, 1935) comb. nov.; Eidophelus robustus (Schedl, 1955) comb. nov.; Eidophelus rugosus (Schedl, 1943) comb. nov.; Eidophelus rusticus (Wood, 1974) comb. nov.; Eidophelus semenovi (Kurentsov, 1941) comb. nov.; Eidophelus separandus (Schedl, 1965) comb. nov.; Eidophelus setifer (Wood, 1974) comb. nov.; Eidophelus sodalis (Schedl, 1965) comb. nov.; Eidophelus spessivtzevi (Berger, 1917) comb. nov.; Eidophelus spirostachius (Schedl, 1958) comb. nov.; Eidophelus splendens (Schedl, 1975) comb. nov.; Eidophelus squamatilis (Schedl, 1977) comb. nov.; Eidophelus squamosus (Schedl, 1942) comb. nov.; Eidophelus squamulosus (Eggers, 1936) comb. nov.; Eidophelus stephegynis (Hopkins, 1915) comb. nov.; Eidophelus takahashii (Nobuchi, 1975) comb. nov.; Eidophelus tarawai (Beaver, 1990) comb. nov.; Eidophelus tonsus (Schedl, 1969) comb. nov.; Eidophelus tricolor (Lea, 1910) comb. nov.; Eidophelus trucis (Wood, 1974) comb. nov.; Eidophelus uncatus (Schedl, 1971) comb. nov.; Eidophelus usagaricus (Eggers, 1922) comb. nov.; Eidophelus varius (Schedl, 1975) comb. nov.; Eidophelus venustus (Schedl, 1953) comb. nov.; Eidophelus yunnanensis (Yin, 2001) comb. nov.; Eidophelus zachvatkini (Krivolutskaya, 1958) comb. nov.; Ernoporus corpulentus (Sampson, 1919) comb. nov.; Ernoporus exquisitus (Bright, 2019) comb. nov.; Ernoporus guiboutiae (Schedl, 1957) comb. nov.; Ernoporus minutus (Bright and Torres, 2006) comb. nov.; Hypothenemus attenuatus (Eggers, 1935) comb. nov.; Hypothenemus loranthus (Schedl, 1942) comb. nov.; Hypothenemus novateutonicus (Schedl, 1951) comb. nov.; Hypothenemus pullus (Wood, 1971) comb. nov. Following assessment of diagnostic characters, the following species were transferred to a different genus: Afrocosmoderes madagascariensis Schedl, 1961 comb. nov.; Afrocosmoderes caplandicus (Schedl, 1965) comb. nov.; Afrocosmoderes grobleri (Schedl, 1961) comb. nov.; Afrocosmoderes niger (Schedl, 1961) comb. nov.; Afrocosmoderes pellitus (Schedl, 1953) comb. nov.; Afrocosmoderes pennatus (Schedl, 1953) comb. nov.; Eidophelus concentralis (Schedl, 1975) comb. nov.; Eidophelus inermis (Browne, 1984) comb. nov.; Eidophelus insignis (Browne, 1984) comb. nov.; Eidophelus kinabaluensis (Bright, 1992) comb. nov.; Eidophelus philippinensis (Schedl, 1967) comb. nov.; Eidophelus podocarpi (Bright, 1992) comb. nov.; Ernoporus imitatrix (Schedl, 1977) comb. nov.; Ernoporus minor (Schedl, 1942) comb. nov.; Ernoporus parvulus (Eggers, 1943) comb. nov.; Indocryphalus sericeus (Schedl, 1942) comb. nov.; Macrocryphalus elongatus (Schedl, 1965) comb. nov.; Macrocryphalus punctipennis (Schedl, 1965) comb. nov.; Microcosmoderes shoreae (Schedl, 1953) comb. nov.; Stegomerus parvatis (Wood, 1974) comb. nov.; Stephanopodius dubiosus (Schedl, 1970) comb. nov. Twenty-nine secondary homonyms were created following genus synonymy, and are designated replacement names: Afrocosmoderes schedli Johnson nom. nov. (=Euptilius madagascariensis Schedl, 1963 syn. nov.); Cryphalus amplicollis Johnson nom. nov. (=Cryphalus laticollis Browne, 1984 syn. nov.); Cryphalus eggersi Johnson nom. nov. (=Cryphalus confusus Eggers, 1927 syn. nov.); Cryphalus fuscus Johnson nom. nov. (=Cryphalus cylindrus Browne, 1984 syn. nov.); Cryphalus gracilis Johnson nom. nov. (=Cryphalus laevis Browne, 1984 syn. nov.); Cryphalus luteus Johnson nom. nov. (=Margadillius fulvus Browne, 1984 syn. nov.); Cryphalus minusculus Johnson nom. nov. (=Hypocryphalus minutus Browne, 1980 syn. nov.); Cryphalus ozopemoides Johnson nom. nov. (=Hypocryphalus montanusSchedl, 1974,syn. nov.); Cryphalus pellicius Johnson nom....
1 September 2018 in Journal of Insect Science
Journal Article
YLYou Li
You LiYRYongying Ruan
Yongying RuanMKMatthew Kasson
Matthew KassonESEdward L Stanley
Edward L StanleyCGConrad Gillett
Conrad GillettJHJiri Hulcr
Jiri Hulcr +2
Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae and Platypodinae) rely on a symbiosis with fungi for their nutrition. Symbiotic fungi are preserved and transported in specialized storage structures called mycangia. Although pivotal in the symbiosis, mycangia have been notoriously difficult to study, given their minute size and membranous structure. We compared the application of novel visualization methods for the study of mycangia, namely micro-computed tomography (micro-CT) and laser ablation tomography (LATscan) with traditional paraffin sectioning. Micro-CT scanning has shown the greatest promise in new organ discovery, while sectioning remains the only method with sufficient resolution for cellular visualization. All three common types of mycangia (oral, mesonotal, and pronotal) were successfully visualized and presented for different species of ambrosia beetles: Ambrosiodmus minor (Stebbing) 1909, Euplatypus compositus (Say) 1823, Premnobius cavipennis Eichhoff 1878, Scolytoplatypus raja Blandford 1893, Xylosandrus crassiusculus (Motschulsky) 1866 and X. amputatus (Blandford) 1894. A reconstruction of the mycangium and the surrounding musculature in X. amputatus is also presented. The advantages of micro-CT compared to the previously commonly used microtome sectioning include the easy visualization and recording of three-dimensional structures, their position in reference to other internal structures, the ability to distinguish natural aberrations from technical artifacts, and the unprecedented visualizations of the anatomic context of mycangia enabled by the integrated software.
Journal Article
ZSZheng Sizhu
Zheng SizhuAJAndrew Johnson
Andrew JohnsonYLYou Li
You LiCCChunrong Chu
Chunrong ChuJHJiri Hulcr
Jiri HulcrA previously unknown bark beetle species, Cryphalus eriobotryae sp. nov. Johnson, 2019 has emerged as a lethal pest of loquat (Eriobotrya japonica) in China. The description of new species has been provided. The new species is distinguished from the other Cryphalus by the weakly aciculate frons, by the antennae, with unevenly spaced procurved sutures, by the short pronotal disc, with hair-like setae, and by the widely spaced mesocoxae. The survey of plantation records from around Suzhou suggests that this beetle was introduced from another area not long before 2017. In the surveyed loquat plantation in 2018, 20–90% of trees showed signs of infestation, and 5% were killed in 2018, resulting in the death of over 1000 trees. Outbreaks of the apparently loquat-specific Cryphalus eriobotryae can be diagnosed by hundreds of cankers on the trunk, and wilted foliage. This pest is of concern as a loquat plantation pest and as a pest of fruit production and ornamental trees within Suzhou, and globally.
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