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Paraolinx Ashmead, 1894 comparative info return to: prev home
Females with transverse white stripe present on face at level of toruli, bordered above and below by dark stripes, although this pattern is sometimes reduced to a simple white spot near each eye; clypeal margin convex. Mandibles long, with many tiny denticles. Flagellar formula 2,4,3 in females, 1,4,2 in males; flagellar segments expanded and asymmetrical in males. Notauli complete to scutellar apex or ending in axillae near scutellar apex; mesoscutal midlobe with 2 or 3 pairs of setae; scutellum faintly sculpted and dull, without submedian or sublateral grooves. Propodeum with median carina simple or sometimes with short anterior split; plicae and costula absent. Forewing often fuscate near stigma and parastigma. Compare with: Miotropis, Grotiusomyia, Aulogymnus, Hoplocrepis, Dasyeulophus.

1a-b: Paraolinx faces: female (left), and male (right)

2a-c: Paraolinx mesosoma (left), female antenna (center), and male antenna (right)

Biology: Parasitoids of Lepidoptera.

Comments: Forms with the white facial markings are easily identified, but males are much more difficult. I have found them misidentified more often than any other Eulophine. Mandibular form and flagellomere shape are the best characters for males, along with absent scutellar grooves.

Comparative information:

Miotropis: Scutellum smooth, sublateral grooves nearly always present anteriorly, usually easily traceable to posterior pair of setal sockets. Face without white markings. Mandibles not elongate. Flagellomeres not asymmetrical in males.

Grotiusomyia: Face without white markings. Mandibles not elongate. Median panels of propodeum sharply raised above supracoxal flange and lateral areas or propodeum, lateral edge of raised area with 1 seta on each side near midlength. Actually very similar to Paraolinx in some ways, such as the clypeal margin and head shape, but easily distinguished.

Aulogymnus: Face without white markings. Mandibles not elongate. Often with fewer than 4 funicular segments. Stigma elongate, with uncus  separated from stigmal apex by more than its own length. Can strongly resemble some Paraolinx in color and sculpture.

Hoplocrepis: Head broad, with face strongly narrowed in ventral half. Mandibles reduced, not capable of meeting medially, without teeth. Occipital carina (often a transverse ledge) present near occipital foramen, vertex also usually sharply margined. Forewing with distinct tuft of enlarged, darkened setae near parastigma; usually with fuscate transverse stripe(s). Petiole longer than broad. Color typically semi-transparent brown to tan or amber. Sulci, carinae, and sutures usually with conspicuously sharp edges. Rarely confusable.

Dasyeulophus: Notauli incomplete. Eyes setose. Clypeal margin bilobed. All funicular segments quadrate to broader than long. Scutellum and mesoscutal midlobe with numerous irregularly distributed setae (rarely scutellum with as few as 2 pairs of setae). Dorsellum large and convex: propodeum only slightly longer than dorsellum medially. Similar in form to some strongly reduced Paraolinx.

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References

Miller, C.D.F. 1964. Some species of the New World genus Paraolinx Ashmead (Hymenoptera: Eulophidae). Canadian Entomologist. 96: 1352-1362.

Image credits: Miller (1964).