The Chrysididae are a group of cleptoparasitic and parasitoid aculeate wasps with a large number of rare and endangered species. The taxonomy of this group has long been confusing due to the similarity of species and extensive intraspecific variation. We present for the first time a comprehensive dichotomous key for all 74 species found in the Nordic and Baltic countries. In addition to diagnos...

How geographically widespread biological communities assemble remains a major question in ecology. Do parallel population histories allow sustained interactions (such as host-parasite or plant-pollinator) among species, or do discordant histories necessarily interrupt them? Though few empirical data exist, these issues are central to our understanding of multispecies evolutionary dynamics. Here...

Two new species, namely Ancistrocerus transpunctatus You and Li, sp. n. and Ancistrocerus deqinensis You and Li, sp. n. are described and illustrated from Yunnan, China. A key to the Oriental species of the genus Ancistrocerus is provided.

In this study, commercial sea cucumber identification and some biological characteristics were investigated between Ayvalık and Çeşme. Ayvalık, Aliağa, Foça, Şakran and İzmir were selected as main stations. In the investigation where 70 stations were studied between 0 and 50 m depth 6 sea cucumber species were found. These were Holothuria tubulosa, Holothuria polii, Holothuria mammata, Holothur...

Moreira da Silva I, Oliveira Silva R, Santos Andrade G, Zanuncio JC, Pereira FF, Pastori PL. 2009. Reproduction of Palmistichus elaeisis Delvare and LaSalle, 1993 (Hymenoptera: Eulophidae) in pupae of Zophobas confusa Gebien, 1906 (Coleoptera: Tenebrionidae). Entomotropica 24(3): 141-144. Zophobas confusa Gebien, 1906 (Coleoptera: Tenebrionidae) is a new alternative host for mass laboratory rea...

Danh-Tai Hoang,1, 2 Juyong Song,3, 4 Vipul Periwal,1, ∗ and Junghyo Jo3, 4, † Laboratory of Biological Modeling, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA Department of Natural Sciences, Quang Binh University, Dong Hoi, Quang Binh 510000, Vietnam Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 37...

The oriental aphid Schizaphis piricola (Matsumura) is recorded for the first time in Europe, on the ornamental pear tree Pyrus calleryana in landscaped areas in Madrid (Spain). Data on the morphology of the forms on primary host (apterous and alate fundatrigeniae and fundatrices), and their biology and distribution are given. The keys for identifying species of Schizaphis (Schizaphis) in the Ib...

The predator and parasitoid fauna associated with cereal aphids is described, emphasizing the fauna associated with classical biological control efforts against the greenbug and Russian wheat aphid. We focus on literature from North America and include work from Europe and elsewhere when it is desirable to draw contrasts between approaches that affect cereal aphid biological control. Effects on...

To determine the number and distribution of exposures among workers exposed to silica dust in Vietnam, a cross-sectional study was conducted of the provincial Preventive Medicine Centers (PMCs) of 61 provinces, and data were collected from medical centers (MCs) of the Ministries of Construction, Industry, and Transportation. The PMC survey identified 112,956 exposed workers in 31 provinces. Min...

1. Propagule pressure, i.e. the number of individuals introduced, is thought to be a major predictor of the establishment success of introduced populations in the field. Its influence in laboratory experimental systems has however been questioned. In fact, other factors involved in long-term population persistence, like habitat size, were usually found to explain most of the dynamics of experim...