FIRST RECORD OF THE SUBGENUS PLANEMPIS FREY (DIPTERA, EMPIDIDAE: EMPIS LINNAEUS) FROM VIETNAM, WITH DESCRIPTIONS OF THREE NEW SPECIES AND A KEY TO SPECIES OF THE ORIENTAL REGION

Shamshev, I. V. (2020): FIRST RECORD OF THE SUBGENUS PLANEMPIS FREY (DIPTERA, EMPIDIDAE: EMPIS LINNAEUS) FROM VIETNAM, WITH DESCRIPTIONS OF THREE NEW SPECIES AND A KEY TO SPECIES OF THE ORIENTAL REGION. Far Eastern Entomologist 409: 1-13, DOI: 10.25221/fee.409.1, URL: http://dx.doi.org/10.25221/fee.409.

Figs 5, 6 in FIRST RECORD OF THE SUBGENUS PLANEMPIS FREY (DIPTERA, EMPIDIDAE: EMPIS LINNAEUS) FROM VIETNAM, WITH DESCRIPTIONS OF THREE NEW SPECIES AND A KEY TO SPECIES OF THE ORIENTAL REGION

Figs 5, 6. Empis (Planempis) laichauensis sp. n. 5 – male habitus, holotype, lateral view;Published as part of Shamshev, I. V., 2020, FIRST RECORD OF THE SUBGENUS PLANEMPIS FREY (DIPTERA, EMPIDIDAE: EMPIS LINNAEUS) FROM VIETNAM, WITH DESCRIPTIONS OF THREE NEW SPECIES AND A KEY TO SPECIES OF THE ORIENTAL REGION, pp. 1-13 in Far Eastern Entomologist 409 on page 7, DOI: 10.25221/fee.409.1, http://zenodo.org/record/716553

New data on the genera Allanthalia Melander, Chvalaea Papp & Földvári and Leptodromiella Tuomikoski (Diptera: Hybotidae) from the Palaearctic

New data on distribution in the Palaearctic Region for three species of flies of the family Hybotidae are provided. Allanthalia pallida (Zetterstedt, 1838) is recorded for the first time from Yakutia (Eastern Siberia) and Leptodromiella crassiseta (Tuomikoski, 1932) — from the Russian Far East (Amurskaya Province). The following new synonym is proposed: Chvalaea  rugosiventris (Strobl, 1910) = Chvalaea sopianae Papp et Földvári, 2002, syn.n. Chvalaea rugosiventris is recorded for the first time from Eastern Siberia (Krasnoyarskiy Territory) and from the Russian Far East (Primorskiy Territory). The latter species is re-described and illustrated. All distributional data on these species are mapped

Behavioural responses of western flower thrips, Frankliniella occidentalis (Pergande), to volatiles from three aromatic plants

The behavioural responses of adult female western flower thrips, Frankliniella occidentalis (Pergande) to volatiles from meadow-sweet (Filipendula ulmaria), bay laurel (Laurus nobilis) and sage (Salvia officinalis) were investigated in laboratory bioassays. Volatiles collected by entrainment of a solvent extract of F. ulmaria were more attractive than was the original extract. Frankliniella occidentalis was also significantly attracted to volatiles from L. nobilis and S. officinalis. Analysis by gas chromatography and mass spectrometry identified 1,8-cineole (eucalyptol) as one of the main volatile components of all three plant species. In coupled gas chromatography-electroantennography studies with F. ulmaria, both 1,8-cineole and methyl salicylate elicited responses from F. occidentalis. Eucarvone was identified as the major component of F. ulmaria volatiles, but showed no electrophysiological activity. Behavioural responses of thrips to a range of concentrations of 1,8-cineole and methyl salicylate were tested using a modified Pettersson 'star' olfactometer. 1,8-cineole showed some attractant activity for the thrips at 0.01 mg, but methyl salicylate was repellent at all the concentrations tested. RÉSUMÉ La réponse comportementale de femelles adultes de thrips (Frankliniella occidentalis) aux émissions volatiles de trois plantes aromatiques, la filipendule (Filipendula ulmaria), le laurier-sauce (Laurus nobilis) et la sauge (Salvia officinalis), a été étudiée dans des essais au laboratoire. Les produits volatils obtenus par collecte d'effluves d'un extrait par solvant de F. ulmaria se sont montrés plus attractifs que l'extrait original. Frankliniella occidentalis a aussi été attiré significativement par les émissions volatiles de L. nobilis et S. officinalis. Des analyses par chromatographie en phase gazeuse et spectrométrie de masse ont permis d'identifier le 1,8-cineole (eucalyptol) comme l'un des composés volatils majeurs des trois espèces végétales. Dans des études par couplage chromatographie en phase gazeuse-électroantennographie, avec un extrait de F. ulmaria, le 1,8-cineole et le methyl salicylate ont tous deux induit des réponses chez F. occidentalis. L'eucarvone a été identifié comme le composé majoritaire des émissions volatiles de F. ulmaria, mais n'a induit aucune activité électrophysiologique. Les réponses comportementales des thrips à une gamme de concentrations de 1,8-cineole et de methyl salicylate ont été évaluées dans un olfactomètre de Pettersson modifé. Le 1,8-cineole a induit une certaine attraction chez les thrips à la concentration de 0,01 mg, mais le methyl salicylate a été répulsif à toutes les concentrations testées