University of Belgrade - Faculty of Biology: Open Journal Systems
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EFFECT OF DIFFERENT LIGHT SPECTRA ON FECUNDITY OF EPHESTIA KUEHNIELLA ZELLER (LEPIDOPTERA: PYRALIDAE)
Get PDFThis paper examines the effects of different light spectra on the number of eggs of Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) as a general host of biological control agents. Six distinct spectra of light, ranging from 395 nm to 625 nm, were examined in laboratory conditions. Green and red spectra with ranges of 520-525 nm and 620-625 nm caused the highest and the lowest numbers of eggs, respectively. Additionally, the effects of time on the mean egg load of E. kuehniella were also found to be significant at five days. The implications of the current results are discussed below and suggest that the application of a green spectrum in insectariums could help in increasing egg production
CONTRIBUTIONS TO THE DOLICHOPODIDAE (DIPTERA) FAUNA OF THE MARMARA REGION OF TURKEY WITH NEW RECORDS
Get PDFField surveys were carried out in the provinces of Balıkesir, Bilecik, Bursa, Çanakkale, Edirne, İstanbul, İzmit, Kırklareli, Sakarya, Tekirdağ and Yalova in the Marmara region of Turkey between 2009 and 2010. As a result of identification of the collected specimens, 17 genera and 31 species, belonging to Diaphorinae, Dolichopodinae, Hydrophorinae, Rhaphininae, Sciapodinae, Sympycninae, Xanthochlorinae subfamilies, were determined. Two species (Hercostomus plagiatus Loew, 1857 and Poecilobothrus nobilitatus Linnaeus, 1767) are new records for Turkey dolichopodid fauna
INSECTICIDAL AND ANTIOXIDANT ACTIVITIES OF AQUEOUS EXTRACTS OF TWO ALGERIAN MEDICINAL PLANTS
Get PDFIn this work, we determined the insecticidal activity and antioxidant activity of aqueous extracts of Nerium oleander (Apocynaceae) leaves and Peganum harmala (Zygophyllaceae) seeds, two well-known Algerian medicinal plants. Four concentrations of each extract were applied in total randomization by spraying directly on the eggs and larvae of Ectomyelois ceratoniae (Zeller, 1879) (Lepidoptera: Pyralidae) under laboratory conditions. Our findings revealed that eggs hatching after four days were not affected by the aqueous extract, with a rate of 54% of hatching eggs in both control and treated eggs. Additionally, toxicity by contact on larvae was not evident and the mortality percentage did not exceed 8%, regardless of the extract plant and concentration. Phytochemical screening showed a slight presence of terpenes and saponins and an absence of alkaloids. However, polyphenols were present in medium concentrations in the aqueous extracts of both plants. The antioxidant activities of N. oleander and P. harmala extracts were found to be 71.80 and 72.94%, respectively. Total phenolic content (TPC) and total flavonoid content (TFC) of the studied extracts were 50.69 mg gallic acid equivalent (GAE)/100 g dry weight (DW) and 3.55 in terms of quercetin equivalent (QE)/100 g DW, respectively, in N. oleander. In P. harmala, the TPC and TFC were 52.30 mg GAE/100 g DW and 3.49 mg QE/100 g DW, respectively. Our study clearly shows the limited insecticidal effect of the aqueous extracts, although they showed an interesting antioxidant potential, which could help to decrease the incidence of oxidative stress-induced damage
CHEILOSIA HERCULANA BRĂDESCU, 1982, A NEW HOVERFLY (DIPTERA: SYRPHIDAE) SPECIES FOR THE FAUNA OF SERBIA
Get PDFDISTRIBUTION OF THE GENUS GASTERUPTION LATREILLE (HYMENOPTERA: EVANIOIDEA: GASTERUPTIIDAE) IN TURKEY
Get PDFThe present study is based on gasteruptiid samples collected in various parts of Turkey since the 1990s. Together with literature sources, a total of 36 species of the genus Gasteruption Latreille, 1797 are compiled for the country. In addition, the European species Gasteruption boreale (Thomson, 1883) is newly recorded for Turkey and Asia. Moreover, the recently described G. brevibasale van Achterberg & Saure, 2014, G. ischnolaimum van Achterberg, 2014, and G. smitorum van Achterberg, 2014, are recorded for the first time from Erzurum after the original description. Gasteruption henseni van Achterberg, 2014 is, together with the abovementioned four species, confined to eastern Anatolia. Gasteruption hastator (Fabricius, 1804), G. merceti Kieffer, 1904 and G. tournieri Schletterer, 1885, are found to be the most widespread and abundant species throughout Turkey. On the contrary, G. aciculatum van Achterberg, 2014, G. boreale and G. nigritarse (Thomson, 1883) are so far rarely collected in Turkey, recorded from one province each. The first was described after a single female from Van and apart from the holotype no other specimens are known. The eastern part of Turkey proved to be an important center of diversity for Gasteruption species. Distribution maps are presented for the indigenous, rarely, sparsely, widely and frequently recorded species
FIRST REPORT OF THE GENUS AETHIOPELLA HANDSCHIN, 1942 AND SPECIES FOLSOMIA INOCULATA STACH, 1947 (HEXAPODA, COLLEMBOLA) FROM IRAN
Get PDFCollembola are a widespread and abundant group of arthropods with distribution all over the world. Collembola fauna is less well-known in the northern districts of Iran. This study was conducted to investigate the Collembola fauna in the forests of Mazandaran province, North Iran, during 2016. During this study, 13 genera and 9 species belonging to 6 families were found. The genus Aethiopella Handschin, 1942 and the species Folsomia inoculata Stach, 1947 are reported for the first time from Iran, with the genus Arrhopalites Börner, 1906 recorded for the first time from Mazandaran province
PHYLOGENETIC ANALYSIS OF RED COTTON BUG SPECIES (HEMIPTERA: PYRRHOCORIDAE) IN PUNJAB, PAKISTAN
Get PDFTraditional techniques for identifying the red cotton bugs Dysdercus koenigii and Dysdercus cingulatus (Pyrrhocoridae: Hemiptera) depend on phenotypic and morphological data. These methods are suitable when species have well-defined structures and when huge taxonomic knowledge is at hand. In this study, the mitochondrial cytochrome oxidase I (COI) gene was selected for the molecular identification of D. koenigii and D. cingulatus. The sequence data showed that one species of the red cotton bug sample was identified as Dysdercus koenigii with 35-100% similarity to other Dysdercus species present in the NCBI database, while the other species was identified as Dysdercus cingulatus with 88-94% similarity to other red cotton bugs species present in the NCBI database. The phylogenetic analysis revealed that our D. koenigii Seq (>180319003-A02-102-DK-.ab1) shares the same cluster with four D. koenigii isolates (ZSI/SRC_I.28B, ZSI/SRC_I.28, GQ306227.1, KJ459924.1). While the D. cingulatus Seq (>180319003-A02-103-DC-.abl) shares a cluster with D. cingulatus voucher (RO_DC2015). This is the first molecular identification of red cotton bugs (D. koenigii and D. cingulatus) reported in Pakistan. Thus, in the current study, molecular identification has been accepted as a reliable method for the identification of these agriculturally important insect pests
THE IMPORTANCE OF SOIL IN THE SPREAD OF THE PINE PROCESSIONARY MOTH IN CENTRAL BULGARIA
Get PDFAvailable geo-referenced data about the pine processionary moth (PPM) attacks in Stara Zagora province in Central Bulgaria were used to study the relationships between the frequency of attacks and soil conditions. It was established that the PPM prefers fresh, deep and fertile soils
NEW DATA ON THE DISTRIBUTION OF PHLOEMO-XYLOPHAGOUS INSECTS OF SMOOTH-LEAVED ELM (ULMUS MINOR MILL.) AND THEIR PARASITOIDS AND PREDATORS IN SERBIA
Get PDFIn a study of the fauna of phloemo-xylophagous insects on Ulmus minor and their parasitoids and predators in Serbia, new data were obtained on the distribution of the recorded species. Some of these data have been published, but many have not. These unpublished data are presented in this paper, which contains a list of 45 species from two orders, 13 families and 41 genera (16 phloemo-xylophagous species, 24 species of parasitoids and five species of predators). For each of them, data are presented regarding the place and time of their finding
THREE MONTANE GRASS MOTHS (LEPIDOPTERA: CRAMBIDAE) NEW TO THE FAUNA OF CROATIA
Get PDFThree species of grass moths (Crambidae) were recorded for the first time in the country. Udea alpinalis and Crambus ericella were recorded on the peaks Guslica and Snježnik in Gorski kotar region, while Catoptria pyramidellus was recorded on several different mountain chains across the country. The record of three montane species in Croatia shows the lack of Microlepidoptera surveys and the need for further visits to those areas