The Journal of Eukaryotic Microbiology (1997) 44, 383-387

Richard E. Clopton and Christopher J. Lucarotti (1997)
Leidyana canadensis n. sp. (Apicomplexa: Eugregarinida) from larval eastern hemlock looper, Lambdina fiscellaria fiscellaria (Lepidoptera: Geometridae)
The Journal of Eukaryotic Microbiology 44 (5), 383-387
Abstract: Leidyana canadensis n. sp. (Apicomplexa: Eugregarinida) is described from larvae of the eastern hemlock looper, Lambdina fiscellaria (Lepidoptera: Geometridae) collected near St. Stephen, Charlotte County, New Brunswick, Canada. Gamonts solitary, located between host ventricular peritrophic membrane and ventricular epithelium. Protomerite very broadly ellipsoid with transverse posterior margin; length 43.7 μm, width 42.7 μm; protomerite-deutomerite septum strongly constricted. Deutomerite narrowly obovoid with anterior transverse margin; length 186.6 μm, width 58.7 μm; total length 227.1 μm. Nucleus spherical to broadly ellipsoid; length 26.3 μm, width 20.2 μm; placement abaxial in the posterior 2/3 of the deutomerite. Nucleus often obscured in late gamonts. Association late, caudofrontal, ephemeral and leading directly to syzygy. Gametocysts roughly spherical; diameter 216.7 μm; hyaline coat increasing diameter to 359.1 μm. Gametocysts mature and dehisce through six short spore tubes within 48 hours. Oocysts axially symmetric, dolioform in dorsal aspect, compressed in the plane perpendicular to the major axis, very uniform in size and shape; length along major axis 5.2 μm, terminal width 1.8 μm, medial width 3.8 μm; extruded in chains.
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Link to article at publishers website
Database assignments for author(s): Christopher J. Lucarotti

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
identification/taxonomy
general biology - morphology - evolution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lambdina fiscellaria
Leidyana canadensis (entomopathogen)	Lambdina fiscellaria		Canada (east)