Acta Entomologica Serbica 2020-04-02T12:51:01+02:00 Ljiljana Protić Open Journal Systems Acta entomologica Serbica is a peer-reviewed scientific journal covering entomology published by the Entomological Society of Serbia. It publishes mainly original research papers. INSECTICIDAL AND ANTIOXIDANT ACTIVITIES OF AQUEOUS EXTRACTS OF TWO ALGERIAN MEDICINAL PLANTS 2020-02-10T14:45:31+01:00 Billal Nia Adel Lekbir Mohamed Kamel Ben Salah <p>In this work, we determined the insecticidal activity and antioxidant activity of aqueous extracts of <em>Nerium oleander</em> (Apocynaceae) leaves and <em>Peganum harmala</em> (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 <em>Ectomyelois ceratoniae</em> (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 <em>N. oleander</em> and <em>P. harmala</em> 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 <em>N. oleander</em>. In <em>P. harmala</em>, 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.</p> 2020-02-10T14:45:31+01:00 ##submission.copyrightStatement## NINE SPECIES OF APHIDS (HEMIPTERA: APHIDIDAE) NEW TO THE FAUNA OF SERBIA 2020-03-06T16:07:01+01:00 Olivera Petrović Obradović Marijana Ilić Milošević Saša S. Stanković Vladimir A Žikić <p>Nine aphid species (Hemiptera: Aphididae), mainly found in the southeastern part of the country, were determined as new records for Serbia. They belong to three subfamilies: <em>Aphis passeriniana</em> (Del Guercio, 1900); <em>A. podagrariae</em> Schrank, 1801; <em>A. salviae</em> Walker, 1852; <em>Brachyunguis tamaricis</em> (Lichtenstein, 1885); <em>Smiela fusca</em> Mordvilko, 1948; <em>Staticobium limonii</em> Contarini, 1847 and <em>Uroleucon pseudobscurum</em> (Hille Ris Lambers, 1967) from the subfamily Aphidinae; <em>Drepanosiphum oregonensis</em> Granovsky, 1939 from the subfamily Drepanosiphinae and <em>Pterocomma jacksoni</em> Theobald, 1921 from the subfamily Pterocommatinae. With the inclusion of these nine records, a total of 383 aphids have been found so far in Serbia. This represents about 70% of the species of the total aphid fauna expected to be found on plants in Serbia. All species are of Palearctic distribution and seem to be monoecious.</p> 2020-03-06T16:07:00+01:00 ##submission.copyrightStatement## THREE MONTANE GRASS MOTHS (LEPIDOPTERA: CRAMBIDAE) NEW TO THE FAUNA OF CROATIA 2020-03-31T23:24:39+02:00 Toni Koren <p>Three species of grass moths (Crambidae) were recorded for the first time in the country. <em>Udea alpinalis</em> and <em>Crambus ericella </em>were recorded on the peaks Guslica and Snježnik in Gorski kotar region, while <em>Catoptria pyramidellus </em>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.</p> 2020-03-31T23:23:56+02:00 ##submission.copyrightStatement## EFFECT OF DIFFERENT LIGHT SPECTRA ON FECUNDITY OF EPHESTIA KUEHNIELLA ZELLER (LEPIDOPTERA: PYRALIDAE) 2020-04-02T12:51:01+02:00 Fatemeh Farsi Ahmad Ashouri Seyed Hossein GOLDANSAZ <p>This paper examines the effects of different light spectra on the number of eggs of <em>Ephestia kuehniella </em>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 <em>E. kuehniella</em> 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.</p> 2020-04-02T12:48:34+02:00 ##submission.copyrightStatement## CHEILOSIA HERCULANA BRĂDESCU, 1982, A NEW HOVERFLY (DIPTERA: SYRPHIDAE) SPECIES FOR THE FAUNA OF SERBIA 2020-02-10T14:29:07+01:00 Mihailo Vujić 2020-02-10T14:27:56+01:00 ##submission.copyrightStatement##