title: New and emended descriptions of gregarines from flour beetles (Tribolium spp. and Palorus subdepressus: Coleoptera, Tenebrionidae).
abstract: The following new gregarine taxa are described from larvae of flour beetles (Coleoptera: Tenebrionidae): Awrygregarina billmani, n. gen., n. sp., from Tribolium brevicornis; Gregarina cloptoni, n. sp., from Tribolium freemani; Gregarina confusa, n. sp., from Tribolilum confusum; and Gregarina palori, n. sp., from Palorus subdepressus. In addition, the description of Gregarina minuta Ishii, 1914, from Tribolium castaneum, is emended. Scanning electron micrograph studies of these species' oocysts reveal differences in surface architecture. The Gregarina species have oocysts with longitudinal ridges, visible with SEM, whereas Awrygregarina billmani oocysts have fine circumferential striations; surface architecture is the main feature distinguishing the 2 gregarine genera. Although parasites from adult beetles are not included in the descriptions, adults of all host species can be infected experimentally using oocysts from the new taxa.
authors.affiliation: School of Biological Sciences, University of Nebraska Lincoln, Lincoln, Nebraska 68588-0118, USA. jjanovy1@unl.edu
authors.forename: J
authors.initials: J
authors.lastname: Janovy
authors.forename: J
authors.initials: J
authors.lastname: Detwiler
authors.forename: S
authors.initials: S
authors.lastname: Schwank
authors.forename: M G
authors.initials: MG
authors.lastname: Bolek
authors.forename: A K
authors.initials: AK
authors.lastname: Knipes
authors.forename: G J
authors.initials: GJ
authors.lastname: Langford
mesh_terms: D000818:Animals; D016782:Apicomplexa / Q000145:classification* / Q000648:ultrastructure; D001517:Coleoptera / Q000469:parasitology*; D006790:Host-Parasite Interactions; D008855:Microscopy, Electron, Scanning; D033661:Oocysts / Q000648:ultrastructure; D013045:Species Specificity; D014231:Tribolium / Q000469:parasitology*