REVISION OF THE GENUS STICTOSPORA AND DESCRIPTION OF STICTOSPORA VILLANI, N. SP. (APICOMPLEXA: EUGREGARINIDA: ACTINOCEPHALIDAE) FROM LARVAE OF THE JAPANESE BEETLE, POPILLIA JAPONICA (COLEOPTERA: SCARABAEIDAE), IN MICHIGAN

Stictospora villani n. sp. is described from larvae of the Japanese beetle Popillia japonica (Coleoptera: Scarabaeidae) from southern Michigan. Stictospora villani is distinguished from known species of the genus by differences in gamont size and by structural details of the epimerite. In general, S...

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Bibliographic Details
Published in:The Journal of parasitology 2004-12, Vol.90 (6), p.1450-1456
Main Authors: Hays, Joanna, Clopton, Richard E, Cappaert, David L, Smitley, David R
Format: Article
Language:English
Subjects:
Animals
Apicomplexa - classification
Apicomplexa - ultrastructure
Beetles
Biological and medical sciences
Coleoptera
Coleoptera - parasitology
Cysts
developmental stages
Digitization
epimerites
Fat body
Fundamental and applied biological sciences. Psychology
gametocysts
Gametocytes
General aspects
General aspects and techniques. Study of several systematic groups. Models
Gregarines
Gregarinia
Image Processing, Computer-Assisted
Insect larvae
Invasive insects
Invertebrates
Laboratories
Larva - parasitology
Larvae
Michigan
Morphology
new species
Oocysts
Oocysts - classification
Oocysts - ultrastructure
Parasites
Parasitology
Popillia japonica
Species
SYSTEMATICS-PHYLOGENETICS
Taxonomic revision
taxonomic revisions
Taxonomy
Terminology
ultrastructure
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Description
Summary:Stictospora villani n. sp. is described from larvae of the Japanese beetle Popillia japonica (Coleoptera: Scarabaeidae) from southern Michigan. Stictospora villani is distinguished from known species of the genus by differences in gamont size and by structural details of the epimerite. In general, S. villani is smaller than other known species of the genus and possesses an epimerite with a margin of 20–24 sympetalous, pendulate, narrowly to very narrowly elliptoid lamina. Previously described species are characterized by epimerites with notably fewer marginal lamina. A heretofore unrecognized protistan is diagnosed from the coelomic fat bodies and tentatively placed within the Neogregarinorida. We conclude that previous workers have mistaken this neogregarine for the gametocyst and oocyst of Stictospora, which are described in this study for the first time. The generic diagnosis of Stictospora is revised to encompass the epimeritic variation of its constituent species and to correctly reflect the morphology of the oocyst.
ISSN:0022-3395
1937-2345
DOI:10.1645/GE-345R