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Diaulinopsis Crawford, 1912

D. arenaria, male
  D. arenaria, female
















Fore wing with submarginal vein (SMV) with more then 3 setae placed dorsally. Postmarginal vein (PMV) present and long: about twice as long as stigmal vein (STV).
Female antenna with scape slender and not exceeding apex of vertex, and with 2 anelli; funicle 2-segmented and club large and 3-segmented. Male antenna with usually 2 anelli and with scape (sc) swollen, sometimes strongly swollen: less than 3 times longer than wide; funicle 2-segmented and club 3-segmented.
Fronto-facial suture adjacent anterior ocellus; usually also a transverse short groove from eye margin to scrobal cavity about halfway between ocellus and torulus is present. Malar sulcus present and straight.
Mesosoma very slightly reticulated. Notauli deep, straight and complete to posterior margin of mesoscutum. Scutellum with 2 pair of setae and with 1 pair of longitudinal grooves. Propodeum usually without median carina and plicae.
Petiole not distinct.
Coloration variable, from metallic to dark non-metallic and with yellow markings.





Diaulinopsis is a very small genus (4 described species) recorded in the Australian, Holarctic and Neotropics regions (Noyes, 2001).




The species of this genus are mainly parasitoids of leafminers, and especially of agromyzid leafminers (Noyes, 2001).



Diaulinopsis belongs to the tribe of Cirrospilini, by having funicle 2-segmented in both sexes, propleura separated posteriorly, submarginal vein with 3 or more setae dorsally and 2 pairs of scutellar setae.
This genus may be distinguished from other Cirrospilini included in the key as follows: from Cirrospilus ambiguus, Danuviella, Diglyphus, Meruana and Zagrammosoma (all of which have notauli incomplete or curving to axillae) by having notauli complete and reaching posterior margin of mesoscutum. Diaulinopsis can be distinguished from Semielacher by not having a distinct petiole and by having mesoscutum longer than pronotum medially and from Cirrospilus variegatus group and Zagrammosoma by not having vertex vaulted. Finally, Cirrospilussensu strictu” appears the closest genus and Boucek (1988), although he treats Diaulinopsis as a defined genus, doesn’t exclude the possibility that Diaulinopsis could be regarded as a species group of Cirrospilus. The very long postmarginal vein in Diaulinopsis is the best character to separate these genera.
Gordh and Hendrickson (1979) provided, within a study of Diglyphus species, a key of the two Nearctic species of Diaulinopsis: albiscapa (Girault) (as albiscapus) and callichroma Crawford.


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October 2005
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