Four species of Laboulbeniales collected from Java Island, Indonesia between August and September in 2006 are described. These species, which belong to the genus Coreomyces and were found on the family Corixidae of the order Hemiptera, were as follows; Coreomycus corixae Thaxter, Coreomyces micronectae Thaxter and Coreomyces orientalis Thaxter, which were found on Micronecta sedula Horvath, and...

The present study is a cladistic analysis of morphological characters focusing on the file of the mandible, the apices of the maxillae, the rupturing device on the maxillae, the internal structures of the mouthparts, and the external morphology of the labial segments as well as the distribution of labial sensilla in true water bugs (Hemiptera: Heteroptera, infraorder Nepomorpha). The study is b...

Residents of Vietnam living in areas with water shortages and/or poor tap water maintain water storage containers, such as jars, in and around their domiciles in order to store water used in daily life. Although these water jars are known to be important breeding sources of the Aedes mosquito, use of chemical larvicides in such containers is legally prohibited in Vietnam. In this study, we iden...

Les Hémiptères aquatiques constituent un groupe de macro-invertébrés très diversifié possédant des sensibilités diverses aux variations spécifiques l’environnement induites par la pollution ou modification l’habitat. La diversité taxonomique a été étudiée dans les plans d’eau urbains Daloa à partir d’un échantillonnage benne et au filet troubleau sur 12 stations cours deux saisons hydrologiques...

In the course of research conducted on Procambarus clarkii (Girard, 1852) in Colombia, Ramphocorixa rotundocephala Hungerford, 1927 was collected Güitoque Lake, outside town Gachantivá, Boyacá. The species identified from adult males found there. This aquatic insect occurs mostly Central and North America, but there are also two records Venezuela South America. is...