Comparative virulence and competition between Nosema apis and Nosema ceranae in honey bees (Apis mellifera).

Honey bees (Apis mellifera) are infected by two species of microsporidia: Nosema apis and Nosemaceranae. Epidemiological evidence indicates that N. ceranae may be replacing N.

Review of the genus Endoreticulatus (Microsporidia, Encephalitozoonidae) with description of a new species isolated from the grasshopper Poecilimon thoracicus (Orthoptera: Tettigoniidae) and transfer of Microsporidium itiiti Malone to the genus.

The historic genus Pleistophora (Plistophora) is a highly polyphyletic clade with invertebrate Microsporidia reassigned to several new genera since the 1980s. Two genera, Endoreticulatus and Cystosporogenes, clearly separate into distinct but closely related clades based on small subunit ribosomal RNA analysis but are included in different families that are each polyphyletic. A microsporidium with morphology resembling the Endoreticulatus/Cystosporogenes clade was isolated from the grasshopper Poecilimon thoracicus from a site in Northwest Bulgaria.

A new microsporidian species, Vairimorpha ocinarae n. sp., isolated from Ocinara lida Moore (Lepidoptera: Bombycidae) in Taiwan.

A new microsporidium was isolated from Ocinara lida Moore (Lepidoptera: Bombycidae), a pest of Ficus microcarpa L. f. in Taiwan.