Rhabditis (Oscheius) pheropsophi n. sp. (Rhabditida: Rhabditidae)
AbstractRhabditis (Oscheius) pheropsophi n. sp., associated with cadavers of the bombardier beetle, Pheropsophus aequinoctialis, is described from material collected in Brazil. Mean body length of the female is 1,217 [mu]m, of the male 872 [mu]m, and of the dauer juvenile 568 [mu]m. The female has six lips with one papilla on each lateral lip and two on each sublateral lip; stoma wall thickened dorsally, metarhabdions with warts, excretory pore near base of esophagus, tail long (c = 8), and phasmids prominent, protruding on scanning electron microscope preparations. The male has 10 pairs of bursal ribs, with the terminal pair considerably smaller than the others; spicules fused distally two-thirds of their length. The new species can be distinguished from other members of the Dolichura-group by its fused spicules. Key words: bombardier beetle, insect associate, nematode, Rhabditis (Oscheius) pheropsophi, Pheropsophus aequinoctialis, Rhabditida, scanning electron microscopy, taxonomy.
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