scholarly journals Pheromone races of Cydia splendana (Lepidoptera, Tortricidae) overlap in host plant association and geographic distribution

2014 ◽  
Vol 2 ◽  
Author(s):  
Marie Bengtsson ◽  
Anne Boutitie ◽  
Julia Jósvai ◽  
Miklos Toth ◽  
Stefanos Andreadis ◽  
...  
Keyword(s):  
Host Plant ◽  
Geographic Distribution ◽  
Plant Association

Ecological constraints and distribution of the primitive and enigmatic endemic Mexican butterflyBaronia brevicornis(Lepidoptera: Papilionidae)

2014 ◽  
Vol 147 (1) ◽  
pp. 71-88 ◽  
Author(s):  
Luc Legal ◽  
Oscar Dorado ◽  
Salima Machkour-M’Rabet ◽  
Roxanne Leberger ◽  
Jérôme Albre ◽  
...  
Keyword(s):  
Host Plant ◽  
Geographic Distribution ◽  
Potential Distribution ◽  
Average Density ◽  
Ecological Constraints ◽  
Abiotic Conditions ◽  
Occurrence Data ◽  
The World ◽  
Ancient Lineage ◽  
Close Relatives

AbstractBaronia brevicornisSalvin (Lepidoptera: Papilionidae) is one of the most enigmatic butterflies in the world and possibly represents the most ancient lineage among the superfamily Papilionoidea. Its geographic distribution is remote from that of all its potential close relatives and many of its biological and ecological characteristics are unique among the suborder Rhopalocera. One of its particularities is that the occurrence plots of this species seem to be independent, each representing individual populations, despite the fact that the host plant:Acacia cochliacanthaHumboldt and Bonpland ex Willdenow (Fabaceae), is one of the most common Mexican Fabaceae species. Our results show that noB. brevicornispopulations occur if the host plant does not cover at least two-thirds of the locality. Even in the most favourable zones, the landscape occupancy of the butterfly does not exceed 2.5% of the available habitat even when its host plant covers 50% of the area. The average density of adults was 840 individuals/ha in favourable habitats, frequently on areas of around 3 ha, below of 1400 m. Using the BIOMOD2 package and the largest available set of abiotic conditions for Mexico implemented in the WorldClim database, we propose a revised potential distribution and discuss the results of our model with field occurrence data. Evolutionary and conservation issues are discussed in the light of our results.

scholarly journals Phenology, Seasonal Abundance, and Host-Plant Association of Spittlebugs (Hemiptera: Aphrophoridae) in Vineyards of Northwestern Italy

Insects ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1012
Author(s):  
Nicola Bodino ◽  
Stefano Demichelis ◽  
Anna Simonetto ◽  
Stefania Volani ◽  
Matteo Alessandro Saladini ◽  
...  
Keyword(s):  
Host Plant ◽  
Late Summer ◽  
Common Species ◽  
Seasonal Abundance ◽  
Cultivated Plants ◽  
Plant Association ◽  
Egg Hatching ◽  
Field Surveys ◽  
One Year ◽  
Cover Up

Spittlebugs (Hemiptera: Aphrophoridae) are the vectors of the bacterium Xylella fastidiosa (Xf) in Europe. Xf may cause severe epidemics in cultivated plants, including grapevines. To assess the threat represented by the bacterium to grapevines, detailed information on the vectors’ phenology, density, and ecology in vineyards is needed. The aim of the present work was to describe spittlebug diversity, phenology, and host-plant association in the vineyard agroecosystem. Two separate field surveys of nymphal and adult spittlebug populations, i.e., a two-year survey of a single site and a one-year survey of three sites, were performed in vineyards of northwestern Italy in three consecutive years. Philaenus spumarius was the most common species, reaching average nymph densities on herbaceous cover up to 60–130 nymphs/m2. Adults were sampled on grapevines from May to September, with a peak in June (up to 0.43 insects/sweep). Herbaceous cover was colonized after egg hatching and in late summer for oviposition, while wild woody hosts represented a refuge during summer. The results show that spittlebugs can reach high population levels in vineyards, at least in the areas where the ground is covered by herbaceous plants for the whole season and the use of insecticides is moderate. The extended presence of P. spumarius adults on grapevines represents a serious risk factor for the spread of Xf. The scenarios of Xf establishment in vineyards in northwestern Italy and Europe are discussed in relation to the abundance, phenology, and plant association of spittlebugs.

scholarly journals New geographic records of four species of Asphondyliini (Insecta, Diptera, Cecidomyiidae)

Check List ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 859-864
Author(s):  
Valéria Cid Maia ◽  
Ismael Cividini Flor
Keyword(s):  
Host Plant ◽  
Geographic Distribution ◽  
Rio De Janeiro ◽  
New Records ◽  
Gall Midge ◽  
The Other

The geographic distribution of four gall-inducing species, Asphondylia cordiae Mohn, 1959, A. serrata Maia, 1994, Bruggmanniella byrsonimae Maia & Couri, 1993 and B. doliocarpi Maia, 2010 (Diptera, Cecidomyidae) is widened based on the examination of galled exsiccates of two Brazilian herbaria, one in Museu Nacional (Rio de Janeiro) and the other in Jardim Botânico do Rio de Janeiro. New records include one country, one phytogeographic domain, eigth states and five municipalities. The distributional area of each gall midge species is compared with that of its host plant.

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