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ent 16 ent
21 ent 26
Graham, 1959 comparative info return to: prev home
Mandibles very long and narrow, with several tiny dorsal teeth and 2
large apical ones [not unique]. Face shiny and smooth; transverse frontal groove
v-shaped; scrobal grooves reaching transverse groove separately, extending below
toruli; interscrobal ridge meeting transverse groove; occiput with median
channel, as in Asecodes and similar genera. Clypeus not set off by sutures; gena
with strong incision that base of mandibles fit into when open. Scape
with sensory pores present only at apex in males; flagellum with slightly
asymmetrical (type 2) peg sensilla. Males with subbasal pale spot on gaster. Ovipositor
very short, its base very far posteriad. Compare with: Asecodes,
Chrysocharis (Zaommomyia), Closterocerus,
1a-c: Ionympha face (left), profile (center), and mandible (right)
Comments: 2 described
species. Identification is subtle and often very difficult if the face is collapsed. The
mandibles are not unique in form, and variation of the gena at mandible base is unknown in
other genera. This genus appears to be closely related to Asecodes.
information: Separation from all other genera based on essentially the same
criteria: Mandibles not the same, shorter and without numerous tiny denticles. Gena not
incised at mandible base. Ovipositor subequal gastral length. The most similar genera are:
Asecodes, Chrysocharis (Zaommomyia), and Closterocerus.
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Hansson, C. 1988. New World species of Holcopelte and Ionympha
(Hymenoptera: Eulophidae), with descriptions of two new species. Proceedings of the
Entomological Society of Washington. 91: 59-65.
Hansson, C. 1996. The status of the genera Asecodes Förster,
Ionympha Graham and Teleopterus Silvestri (Hymenoptera: Eulophidae) with
a review of Nearctic species. Entomologica Scandinavica. 27:
Image credits: 1a-c: Hansson (1996).