Steinernema
nguyeni
Malan, Knoetze & Tiedt, 2016
Summary: Steinernema nguyeni
was recovered by baiting from beneath
an Olea africana tree in
molecular features suggests that it is a member
of the feltiae-group.
The species is morphologically characterised by
the infective juvenile
body length of 737 (673-796) μm and the
infective juvenile lateral
field pattern = 2, 8, 2. The first generation
male can be recognised
by the spicule length of 66 (58-75) μm and a
gubernaculum length of
43 (30-55) μm. The first generation female can
be recognised by the
slightly protruding vulval lips and the presence
of low, double-flapped
epiptygmata. Analysis of the ITS (KP325084) and
D2-D3 (KR815816)
regions of the ribosomal DNA confirmed that S.
nguyeni differed from
all other known Steinernema species.
Patronym in honour of Dr Khuong B. Nguyen for
his work on
entomopathogenic nematodes.