1,721,822 research outputs found
Colour change and habitat preferences in Mantis religiosa
Full text linkA population of praying mantids Mantis religiosa L. was studied in a submontane habitat near Vicenza in Northern Italy. Sixtythree mantids were observed and studied in the field with the mark and recapture method to obtain ecological information about
the coloration patterns, habitat preferences and strategies of this species. Additionally, a population of mantids was housed in artificial conditions to estimate the presence of colour changes in adults. A regular distribution of the coloration of the insects was found in the field during the changing of the season, and partial colour changes not linked to the substrate or the moult process were observed in artificial conditions. The basic structure of the preferred habitat of M. religiosa is described as a pattern of grassland and thorny bushes of the Rosaceae famil
Orthoptera in the far side of the world: the southernmost new genus of Phaneropterinae, and the ecology of some Subantarctic Orthoptera
Full text linkA survey on orthoptera in the transition zone between the Patagonian and Subantarctic regions of Argentina, along the Atlantic coast, was conducted to improve knowledge on these insects, which in these extreme areas have evolved into peculiar species, indicative to understand the biogeographical limits of this order of insects. New data have emerged on highly specialized genera such as Bufonacris and Astroma while other more generalist genera such as Sinipta have shown considerable expansion southwards, probably favoured by warmer climatic conditions. A new genus and species are described here for the first time: Caimanellus gen. nov. with the species Caimanellus australis sp. nov., at present the southernmost representative of the Phaneropterinae ever recorded. More general considerations on the evolution of the distributional limits of this large group of orthopterans are here discusse
The mantids of Caucasus.
No full textThe male of Hierodula trancaucasica Brunner von Wattenwyl, 1878, is described here. The external morphology and shape of genitalia are analysed. A comparison with previous data and some biogeographical considerations on Paramantini are given
Primi dati sulla presenza di Shelfordella lateralis (Walker, 1868) (Blattodea: Blattidae) nell’Italia continentale e possibili scenari di espansione futura in Europa
Full text linkVengono qui presentati i primi dati di presenza di Shelfordella lateralis per l’Italia continentale in Veneto, Lombardia e Lazio, dopo la prima storica segnalazione sarda del 2007. L’osservazione diretta e continua di una popolazione prolifica in un’area industriale di Vicenza (Veneto), probabilmente presente in imballaggi di articoli sportivi confezionati in Romania, unita al vaglio di numerose nuove osservazioni registrate dalla citizen-science (sulla piattaforma iNaturalist), ha permesso di ridisegnare la presenza di questa specie non solo in Italia ma anche nel resto d’Europa. Numerose segnalazioni sono infatti apparse negli ultimi anni in diversi Paesi europei: dopo le già note Cipro e Spagna, è stata registrata anche in Romania, Repubblica Ceca, Lussemburgo, Francia e Portogallo. Queste nuove segnalazioni vengono qui discusse in uno scenario di rapida espansione di questa specie, dovuta a cause antropiche ma ancora poco comprese su scala globale. Questa specie viaggia infatti in imballaggi di merci di vario tipo dove trova riparo, ma è anche ampiamente allevata e venduta come cibo vivo per animali esotici. L’ecologia adattativa ed elusiva di questa blatta sembra trovare ora in Europa condizioni di permanenza particolarmente favorevoli. Infine, vengono fornite le chiavi per l’identificazione dei generi europei di Blattidae, per facilitare il futuro monitoraggio di questi scarafaggi sinantropici.The first occurrence records of Shelfordella lateralis for continental Italy in Veneto, Lombardy and Latium, after the historical Sardinian report in 2007, are presented here. The direct and continuous observation of a prolific population in an industrial area in Vicenza (Veneto), probably originated from packed sport goods coming from Romania, combined with the screening of numerous new observations recorded by citizen science (iNaturalist), allowed to redraw the presence of this species not only in Italy but also in the rest of Europe. Many reports have in fact appeared in recent years in several European countries: after the already known data from Cyprus and Spain, it has been recorded also in Romania, Czech Republic, Luxembourg, France and Portugal. These new occurrence records are discussed here in a scenario of a rapid expansion of this species, due to anthropogenic causes but still not well known on a global scale. Indeed, this species travels in packages of various kinds of goods where it finds shelter, but it is also widely bred and sold as live food for many exotic pets. The adaptive and elusive ecology of this species seems to find now in Europe particularly favorable conditions of permanence. Finally, keys for the identification of the European genera of Blattidae are provided to facilitate future monitoring and expansion of these synanthropic cockroaches
Nuove e ritrovate presenze nell’entomofauna veneta (Insecta: Coleoptera, Orthoptera, Dermaptera), dalle segnalazioni storiche all’epoca dei social network
Full text linkIl presente studio riporta le prime segnalazioni di presenza di Locusta migratoria per la provincia di Vicenza, Anisolabis maritima
per la provincia di Rovigo e Euborellia moesta per l’Ovest Vicentino. La presenza di Saperda octopunctata viene confermata per
il Veneto dopo oltre 150 anni dalla prima e unica segnalazione storica. Questi nuovi dati vengono discussi in relazione alle nuove
modalità di monitoraggio delle specie rare ed elusive tramite l’integrazione di indagini specialistiche e la condivisione di osservazioni nelle comunità digitali e dei progetti di citizen-science.This study presents the first presence-records of Locusta migratoria for the province of Vicenza, Anisolabis maritima for the
province of Rovigo and Euborellia moesta for the western part of the province of Vicenza. The presence of Saperda octopunctata
is here confirmed for the Veneto region, after more than 150 years from the first and only historical record. These new records
are discussed in relation to new ways of monitoring rare and elusive species through the integration of specialist surveys and the
sharing of observations in digital communities and citizen-science projects
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