Journal of Entomological and Acarological Research 2020-07-05T21:07:20+00:00 Emanuela Fusinato Open Journal Systems <p>The <strong>Journal of Entomological and Acarological Research</strong> (JEAR), formerly the Bollettino di Zoologia Agraria e di Bachicoltura of the Institute of Entomology of the Università degli Studi, Milano, was founded in 1928 by Remo Grandori. Thereafter, Minos Martelli and Luciano Süss hold the direction of the Journal until December 2011. In January 2012 the Editor decided for the new open-access on-line version of JEAR.</p> <p>The Journal publishes original research papers concerning Arthopods, but reviews, editorials, technical reports, brief notes, conference proceeding, letters to the Editor, book reviews are also welcome.</p> <p>JEAR has four main areas of interest:</p> <ul> <li class="show"><strong>Entomology</strong> (systematics; morphology; biology; biotechnology; agriculture, ornamental and forest entomology; applied entomology; integrated pest management; biological control; apiculture and apidology; medical, urban and veterinary entomology; etc.)</li> <li class="show"><strong>Stored product pests</strong> (biology; integrated pest management; etc.)</li> <li class="show"><strong>Insect Ecology</strong> (behaviour; biodiversity; taxonomy; plant insect interaction and ecosystems; biological control; alien species; etc.)</li> <li class="show"><strong>Acarology</strong> (systematics; morphology; biology; parasitology; control; etc.)</li> </ul> <p>The publication of manuscripts is subject to the approval of the Section Editor who has knowledge of the field discussed in the manuscript in accordance with the principles of Peer Review; referees will be selected from the Editorial Board or among qualified scientists of the international scientific community. Articles must be written in English and must adhere to the guidelines and details contained in the Instructions to Authors.</p> Biology and life table parameters of <em>Metaphycus marensis</em> Chirinos & Kondo, 2019, an encyrtid parasitoid of guava cottony scale in Venezuela 2020-07-05T21:07:14+00:00 D.T. Chirinos R. Castro J. Castro I. Perez-Almeida T. Kondo <p>The guava cottony scale, <em>Capulinia linarosae</em> (Hemiptera: Eriococcidae) is an important pest of guava, <em>Psidium</em> <em>guajava</em>, in Venezuela and northern Colombia. <em>Metaphycus marensis</em> (Hymenoptera: Encyrtidae) is a new primary parasitoid species recently described associated with this pest. Studies were conducted on oogenesis, life cycle, survival, daily fecundity and life table parameters of <em>Metaphycus marensis</em> Chirinos &amp; Kondo (Hymenoptera: Encyrtidae): intrinsic rate of natural increase (rm), generation time (T) and net reproductive rate (Ro). Females of <em>M. marensis</em> are synovigenic and this parasitoid goes through four larval instars and completes its life cycle in about 12.7 days. Survival was of type I, where mortality was initially detected by encapsulation of eggs and larvae. <em>Metaphycus marensis</em> was able to multiply its population 28.7 times (Ro) with rm of 0.242 in 13.9 days (T). The short generation time of the parasitoid in relation to its eriococcid host could represent a desirable attribute as a natural enemy. However, the low fecundity and the encapsulation by the host must be analyzed through field experiments in order to evaluate its effectiveness as a biological control agent for <em>C. linarosae</em>.</p> 2020-06-01T08:07:26+00:00 ##submission.copyrightStatement## Associations between the larval-pupal parasitoids Erycia furibunda and E. festinans (Diptera: Tachinidae) and respectively, the sympatric and syntopic butterflies Euphydryas aurinia provincialis and Melitaea cinxia (Lepidoptera: Nymphalidae) 2020-07-05T21:07:16+00:00 M. Pinzari M. Pinzari D. Cesaroni <p>Several studies on butterfly ecology and biology of Melitaeini butterflies have been carried out in the past, however the factors affecting butterfly mortality and the role of natural enemies on population dynamics are not yet fully known. Larval survival plays a key role in determining butterfly population size and distribution range; thus, knowing the sources and variation in larval mortality is essential understanding and predicting population dynamics. Butterfly larval mortality is generally ascribed to abiotic factors, predators and parasitoids (mainly Diptera and Hymenoptera). Among Diptera, tachinids parasitize primarily larval Lepidoptera. In this paper, we report the results of 5-year observations in the wild and captivity on the tachinids,<em> Erycia furibunda</em> and <em>E. festinans</em>, parasitoids of caterpillars of a population of <em>Euphydryas</em> aurinia spp. provincialis and <em>Melitaea cinxia</em> in Central Italy revealing their host specifity. The hosts,<em> E. aurinia</em> and <em>M. cinxia</em>, and parasitoids, <em>E. furibunda</em> and <em>E. festinans</em>, inhabit the same habitat and their life cycles highly overlap, nevertheless, the parasitoids maintain their host specifity: E. furibunda as parasitoid of <em>E. aurinia; E. festinans</em> as parasitoid of <em>M. cinxia</em>. This was confirmed by our findings during the butterfly breeding activities carried out for over five years. Although the role of chemical cues in host finding requires further research, according to our observations the presence of only<em> E. furibunda</em> on larval webs of <em>E. aurinia</em> let us suppose that the mechanism by which <em>E. furibunda</em> locates its host could be based on olfactory cues emitted by feeding damage to host plants that act from afar. Similarly, the mechanism of host finding used by <em>E. festinans</em> could act to select its host, <em>M. cinxia</em>. Furthermore, we illustrate some diagnostic features of adults for the identification of the studied parasitoids.</p> 2020-06-01T07:38:35+00:00 ##submission.copyrightStatement## New records on some Tetrastichinae (Hymenoptera: Eulophidae) from Italy, with description of a new species of <em>Aprostocetus</em> 2020-07-05T21:07:18+00:00 G. Viggiani <p>New records of Tetrastichinae from Italy are given. The Italian species of <em>Aprostocetus (Ootetrastichus)</em> are revised, a new species is described, and a key to their identification is given.</p> 2020-06-01T06:58:12+00:00 ##submission.copyrightStatement## First record from Calabria (southern Italy) of the “bronze bug” <em>Thaumastocoris peregrinus</em> Carpintero & Dellapé, 2006, alien <em>Eucalyptus </em>pest native to Australia (Hemiptera: Heteroptera: Thaumastocoridae) 2020-07-05T21:07:20+00:00 E. Castiglione F. Manti C.P. Bonsignore <p>The occurrence in Calabria (southern Italy) of <em>Thaumastocoris peregrinus</em> Carpintero &amp; Dellapé, 2006, alien pest on various species of <em>Eucalyptus,</em> native to Australia, is reported for the first time. The first specimens were collected in September 2019; later the authors found feeding damage on the leaves, eggs batches and the various stages of the insect in various localities in Reggio Calabria (Italy). Notes on its distribution and biology are reported.</p> 2020-05-29T12:57:02+00:00 ##submission.copyrightStatement##