Home   Open the Key     References  

Semielacher Boucek, 1988

S. silvicola, female
  S. petiolatus, female
















Fore wing with submarginal vein (SMV) with 3 or more setae dorsally. Postmarginal vein (PMV) present and not longer than 1.25 times stigmal vein length.
Antenna with scape slender and not extending above apex of vertex, and with 2 anelli; flagellum in male and female with funicle 2- and club 3-segmented.
Fronto-facial suture (ffs) adjacent to anterior ocellus; usually also a transverse slight short groove (gr) from eye margin to scrobal cavity about halfway between ocellus and torulus. Malar sulcus present and straight. Distinct tentorial pits are also present on the lower face.
Notauli straight, deep, strongly converging caudally and complete to posterior margin of mesoscutum. Mesoscutum very short, medially much shorter than pronotum and scutellum. Scutellum sculptured and with 2 pairs of setae and with 1 pair of weak longitudinal grooves. Propodeum with low median carina which anteriorly expands into a smooth triangle; plicae absent or very weak. Petiole distinct and strongly sculptured.
Coloration dark to brown with yellow markings.





Semielacher is a small genus native to Australasia and recently recorded in the Mediterranean countries (Siscaro et al., in press).




The biology of S. silvicola Boucek is unknown, while S. petiolatus (Girault), described as a parasitoid of the citrus leafminer Phyllocnistis citrella Stainton (Lepidoptera), has been furthermore recorded on several Diptera and Lepidoptera leafminers (Massa et al., 2001).



Semielacher may be distinguished from all the Cirrospilini included in the key, with which it shares funicle 2-segmented in both sexes, propleura separated posteriorly, submarginal vein with 3 or more setae dorsally and 2 or more pairs of scutellar setae, by having mesoscutum much shorter than pronotum medially, distinct petiole and distinct tentorial pits on lower face. It also can be distinguished from C. ambiguus, Danuviella, Diglyphus, Meruana and Zagrammosoma by having notauli complete and reaching posterior margin of mesoscutum, while from Diaulinopsis by having postmarginal vein not longer than 1.25 times the length of the stigmal vein and by not having male scape swollen.
According to Boucek (1988), S. petiolatus can be distinguished from S. silvicola by having much shorter petiole, shorter scutellum and yellow gaster. He also revealed that there are at least other 3 Australasian species not yet described.
S. petiolatus, introduced in several Mediterranean countries in relation with the Phyllocnistis citrella biological control, has spontaneously spread out in all this area, revealing a high dispersal capability. In Italy and Jordan the species has been also recovered from other Lepidoptera and Diptera leafminers (Massa et al., 2001).


Copyright 2005, CSIRO Australia
October 2005
Use of this web site and information
available from it is subject to our
Legal Notice and Disclaimer