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    Bioacoustic of Cohnia andeana (Hebard, 1924) comb. nov (Insecta: Orthoptera: Tettigoniidae)

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    Buzzetti, F. M., Fontana, P., Carotti, G. (2010): Bioacoustic of Cohnia andeana (Hebard, 1924) comb. nov. (Insecta: Orthoptera: Tettigoniidae). Zootaxa 2661 (1): 59-68, DOI: 10.11646/zootaxa.2661.1.4, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.2661.1.

    FIGURES 3–8 in Bioacoustic of Cohnia andeana (Hebard, 1924) comb. nov. (Insecta: Orthoptera: Tettigoniidae)

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    FIGURES 3–8. Cohnia andeana (Hebard, 1924). 3: male lateral view; 4: female lateral view; 5: male pronotum lateral view; 6: male pronotum dorsal view; 7: female pronotum lateral view; 8: female pronotum dorsal view.Published as part of Buzzetti, F. M., Fontana, P. & Carotti, G., 2010, Bioacoustic of Cohnia andeana (Hebard, 1924) comb. nov. (Insecta: Orthoptera: Tettigoniidae), pp. 59-68 in Zootaxa 2661 (1) on page 63, DOI: 10.11646/zootaxa.2661.1.4, http://zenodo.org/record/530259

    Effects of irrigation on Empoasca vitis populations

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    The effect of irrigation on the incidence of pests was investigated in two vineyards located in north-eastern Italy in 2006. Irrigation was performed 2-3 times during the experimental season by a micro-spray system. The leafhopper Empoasca vitis Göthe was the most frequent pest in the two vineyards. Its seasonal abundance was monitored by examining leaf samples. Empoasca vitis population densities were affected by irrigation, and higher levels of this pest were recorded on irrigated vines in particular

    Cohnia Buzzetti & Fontana & Carotti 2010, g. nov.

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    Cohnia g. nov. Type species: Cohnia andeana (Hebard, 1924) comb. nov. Cohnia andeana (Hebard, 1924) comb. nov. (Fig. 1) was described as Dichopetala from Loja, Ecuador. Since its description C. andeana has been no more collected and it was only mentioned by Rehn (1955); being to date known only for type material and from type locality. C. andeana was finally collected in two recent expeditions in the neighborhood of Loja, in the village of Catamayo, Southern Ecuador (Fig. 2). Diagnosis: Pronotum (Fig. 5–8) of both sexes with typical sulcus behind the second third and consequently metazona long less than half of prozona, without humeral sinus. Male cerci (Fig. 9, 11–13) simply tapering to the apex, curved inward in the distal third. Male titillators (Fig. 18–19) toothless and well sclerotized. Genicular lobes unarmed. Female subgenital plate (Fig. 21, 24) entire, subhexagonal, apically truncated and longitudinally carinated in the middle. Ovipositor (Fig. 15) regularly upward curved in its middle portion with distal half coarsely serrulated. Derivatio nominis: Named after Theodore J. Cohn of Ann Arbour University in USA, who inspired our investigations and allowed us to have a wide overview on the genus Dichopetala. Distribution: Known for type locality and surroundings in Ecuador. Adopting the biogeographic arrangement of Latin America by Morrone (2006), the genus is Neotropical occurring in the Nortwestern Southamerican Dominio.Published as part of Buzzetti, F. M., Fontana, P. & Carotti, G., 2010, Bioacoustic of Cohnia andeana (Hebard, 1924) comb. nov. (Insecta: Orthoptera: Tettigoniidae), pp. 59-68 in Zootaxa 2661 (1) on page 61, DOI: 10.11646/zootaxa.2661.1.4, http://zenodo.org/record/530259
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