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Keywords: Agamomermis termitivoratus n. sp.; collective genus; description; Isoptera; Mermithidae; new species; Reticulitermes flavipes; Rhinotermitidae; subterranean termite; taxonomy Susceptibility of damp wood termites and soil and wood dwelling termites to the entomogenous nematode Neoaplectana carpocapsae. Mites and nematodes associated with three subterranean termite species (Isoptera: Rhinotermitidae). Agamomermis termitivoratus n. sp., collective genus, description, Isoptera, Mermithidae, new species, Reticulitermes flavipes, Rhinotermitidae, subterranean termite, taxonomy. [Extracted from the article]

• Black fly–parasite interactions (asymmetries) were quantified in stream ecosystems. • Blastocladiomycota, Mermithid nematodes and Microsporidia parasites were found. • The continental distributions for the most common parasite taxa were similar. • Host-parasite interactions (asymmetry) were generally weak. • Nestedness indicated specialized parasites tend to occur in common hosts. We examined the general architecture of interactions between stream-dwelling larval black flies (Diptera: Simuliidae) and their common parasites in 1736 collections across North America. Mermithid nematodes (family Mermithidae), microsporidia (phylum Microsporidia), and the fungus Coelomycidium simulii Debaisieux (phylum Blastocladiomycota) infected larval black flies. We found similar continental distributions for these three parasite taxa across North America. At least one of these taxa was represented in 42.2% of all black fly collections. Species interactions in ecological networks typically imply that each link between species is equally important. By employing quantitative measures of host susceptibilities and parasite dependencies, we provide a more complete structure for host–parasite networks. The distribution of parasite dependencies and host susceptibilities were right-skewed, with low values indicating that most dependencies (parasites) and susceptibilities (hosts) were weak. Although regression analysis between host frequency and parasite incidence were highly significant, frequency analysis suggested that the distributions of parasites differ significantly among the four most common and closely related (same subgenus) species of hosts. A highly significant pattern of nestedness in our bipartite host–parasite network indicated that specialized parasites (i.e., those that interact with few host species) tend to occur as subsets of the most common hosts. [ABSTRACT FROM AUTHOR]