ABSTRACT
A new genus, Iberolygus Kim, Goula Jung, gen. nov. is described from the Iberian Peninsula to accommodate the species Apolygus rubrostriatus (Wagner, 1971) based on re-examination of Iberian specimens. Morphological information such as diagnosis and description of the Iberolygus gen. nov. and redescription of I. rubrostriatus comb. nov. is presented with photographs and illustrations.
Subject(s)
Hemiptera , Heteroptera , Animal Distribution , Animals , EuropeABSTRACT
Genus Perenotus and species Perenotus malobae were recently described as a new genus and species by Roca-Cusachs & Goula (2016). Article 16.4.2 of ICZN (1999) requires a statement of intent that the holotype is deposited in a collection and a statement indicating the name and location of that collection. Unfortunately, it is unclear if this requirement was satisfied.
ABSTRACT
Perenotus gen. nov. is described based on males and females from the Canary Islands, Spain. This new genus is easily recognized by having a myrmecomorphic appearance and a scutellar hump in both sexes. Systellonotus stysi J. Ribes, Pagola-Carte et Heiss, 2008, was described based on females collected in Tenerife and La Palma, but careful examination showed that specimens from each island belong to different species, and can be transferred to the new genus Perenotus. As a result, Perenotus includes two species, P. stysi comb. n. for specimens from Tenerife and P. malobae sp. nov. for specimens from La Palma. In the present publication Perenotus gen. nov. and P. malobae sp. nov. are described, P. stysi female is redescribed, and P. stysi male is described for the first time. Illustrations of male and female general habitus and genitalia are provided.
Subject(s)
Heteroptera/classification , Animals , Female , Heteroptera/anatomy & histology , Male , SpainABSTRACT
With the aim of gaining insight into true bugs assemblages, and of giving tools to enhance environmental manager tasks, an analysis was made of the alpha and beta diversity of true bug assemblages in the NE Iberian Peninsula. The study took place during the years 1999, 2000, and 2001. The diversity of true bug assemblages among four typical Mediterranean plant communities (dry grassland, calcicolous rosemary scrub, kermes oak scrub, and evergreen oak forest) in a protected natural area was compared. In each plant community, a stratified sampling, taking into account plants with highest coverage percentage, was performed. Collections were performed monthly using direct observation plus beating or sweeping of the entomological net. Objectives were 1) to assess whether true bug assemblages are different in each plant community surveyed, by means of the analysis of their alpha and beta diversity, 2) to assess if any of the four true bug assemblages may be prioritized according to the biodiversity parameters studied. In total, 3,071 specimens, belonging to 12 families and 77 species were identified. Fifty percent of specimens collected belonged to only three species, and â¼33% of species was represented by only one or two individuals. In each Heteroptera assemblage, the distribution pattern of species frequency classes followed a lognormal model. Thirty-five percent of species represented by three or more specimens were found in only one plant community. Abundance, species richness, and diversity were found to be different for each true bug assemblage and along the year. Abundance was highest in the evergreen oak forest and in spring. Species richness and diversity were highest in the kermes oak scrub and in early summer. Nonparametric species richness estimators showed that completeness of species inventory was >80%. In the study zone, true bug diversity may be considered low medium. Our results show that true bugs assemblages are characteristic of specific plant communities, and thus, true bugs fit as candidate monitoring group in environmental and conservation management.
Subject(s)
Biodiversity , Ecosystem , Heteroptera/classification , Heteroptera/physiology , Animals , Conservation of Natural Resources , Population Dynamics , Seasons , SpainABSTRACT
Internet photosharing websites is a very recent and powerful tool for the study of biodiversity, and a meeting point of general public fond of nature and professional naturalists. The article discusses when an uploaded picture is scientifically valuable, and the benefits of structured hosting websites for the most fruitful information retrieval. Examples are given of faunistic, biological, ecological and conservation results concerning Hemiptera provided by information download from photosharing websites.
ABSTRACT
Wheat is a very important crop in Italy, and is infested by wheat bugs belonging to the genera Eurygaster (Hemiptera: Scutellaridae) and Aelia (Hemiptera: Pentatomidae). Many wheat bug infestations have been reported in the north, south, and center of Italy, both in the past as well as recently. The present study was carried out in Sardinia, Italy, during two years (2007 and 2008). The objective of this study was to determine the species and distribution of wheat bugs in durum wheat fields in Sardinia, and to estimate their population density in order to know the incidence of the pest on the island. Sampling took place twice a year (May and June) in three zones, representative of durum wheat cropping in the island. Four species of wheat bugs were found; the predominant species was Eurygaster austriaca (Schrank), followed by Aelia germari (Kuster), Eurygaster maura L., and Aelia acuminata L. The average density of wheat bugs was low (1.1 individuals/m²), but in certain areas it was above the damage threshold (4 individuals/m²). For this reason, the conclusion of the study is that this pest should be monitored in order to control outbreaks and prevent their further spread.
