Mosquitoes, in addition to being a biting nuisance, are vectors of several pathogenic viruses and parasites. As a continuation of our work identifying abundant and/or invasive plant species in ...Vietnam for use as ecologically friendly pesticidal agents, we obtained the essential oils of Blumea lacera, Blumea sinuata, Emilia sonchifolia, Parthenium hysterophorus, and Sphaeranthus africanus; analyzed the essential oils using gas chromatographic techniques; and screened the essential oils for mosquito larvicidal activity against Aedes aegypti and Aedes albopictus. The most active larvicidal essential oils were B. sinuata, which was rich in thymohydroquinone dimethyl ether (29.4%), (E)-β-caryophyllene (19.7%), α-pinene (8.8%), germacrene D (7.8%), and α-humulene (4.3%), (24-h LCsub.50 23.4 and 29.1 μg/mL) on Ae. aegypti and Ae. albopictus, respectively, and Emilia sonchifolia, dominated by 1-undecene (41.9%) and germacrene D (11.0%), (24-h LCsub.50 30.1 and 29.6 μg/mL) on the two mosquito species. The essential oils of P. hysterophorus and S. africanus were also active against mosquito larvae. Notably, B. sinuata, P. hysterophorus, and S. africanus essential oils were not toxic to the non-target water bug, Diplonychus rusticus. However, E. sonchifolia essential oil showed insecticidal activity (24-h LCsub.50 48.1 μg/mL) on D. rusticus. Based on these results, B. sinuata, P. hysterophorus, and S. africanus essential oils appear promising for further investigations.
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In order to document the diversity and distribution of mosquitoes inhabiting the Querétaro State of México, collection trips were conducted in all physiographic regions and sub-regions of the state ...(Sierra Madre Oriental, Central Plateau, and Neo-Volcanic Axis). In addition, mosquito specimens collected in Querétaro and deposited in the Collection of Arthropods of Medical Importance (CAIM) were re-examined. A total of 2718 specimens (570 larvae, 384 larval exuviae, 537 pupal exuviae, 30 pupae, 807 females, 368 males, and 22 male genitalia) were analyzed. In total, 2 subfamilies, namely Anophelinae and Culicinae, 5 tribes, 12 genera, 20 subgenera, and 50 species were found. Of these, 3 tribes, 8 genera, 11 subgenera, and 33 species are new records for the mosquito fauna of Querétaro. Two undescribed species were found, and one of them, Shannoniana huasteca Ortega n. sp., is described here using morphology and Cytochrome oxidase subunit 1 (COI) DNA barcoding. Taxonomic notes, new distribution limits, comments about the medical importance of species, and a key to identify adult females of Shannoniana species are provided.
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Seasonal activity of mosquito larvae (Diptera, Culicidae) was studied in the period from April to September of 2016, 2017 and 2018 in the Berezinsky Biosphere Reserve (Vitebsk Province, Belarus). We ...studied the larvae of 19 mosquito species: Aedes cinereus, A. vexans, A. annulipes, A. cantans, A. cataphylla, A. communis, A. cyprius, A. euedes, A. excrucians, A. flavescens, A. intrudens, A. leucomelas, A. mercurator, A. punctor, A. riparius, A. sticticus, Anopheles maculipennis, A. messeae, and Culex territans.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Seasonal activity of nine mosquito species (Diptera, Culicidae): Aedes cinereus, A. cantans, A. annulipes, A. excrucians, A. communis, A. punctor, A. intrudens, A. sticticus, and A. vexans was ...investigated in the period from May to September of 2016, 2017 and 2018 in the Berezinsky Biosphere Reserve (Vitebsk Province, Belarus). According to the type of seasonal dynamics, these species are classified in four phenological groups.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
Geographic variability of the thoracic chaetome in females of Coquillettidia richiardii (Ficalbi, 1889) and Culex modestus Ficalbi, 1890 was revealed for the first time. We found statistically ...significant differences in the number of setae between populations from various regions. In particular, Coquillettidia richiardii females from Romania and Moldova have on average a greater number of postpronotal and prealar setae as compared with conspecific females from St. Petersburg and Leningrad Province of Russia. Culex modestus females from Uzbekistan, Kyrgyzstan, and Leningrad Province have on average fewer postpronotal, prealar, mesepisternal, and upper mesepimeral setae than the females from Rostov Province of Russia.
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EMUNI, FIS, FZAB, GEOZS, GIS, IJS, IMTLJ, KILJ, KISLJ, MFDPS, NLZOH, NUK, OBVAL, OILJ, PNG, SAZU, SBCE, SBJE, SBMB, SBNM, UKNU, UL, UM, UPUK, VKSCE, ZAGLJ
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