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Deutereulophus Schulz, 1906 comparative info return to: prev home
Eyes setose. Occiput strongly concave, vertex carinate, eye reaching posterior margin of head in dorsal half (all these characters as in Hoplocrepis). Flagellar formula vaguely 1,3,3 or 1,4,2, described as 1,4,2 in males and 1,3,3 in females (Schauff 2000); basal flagellomeres in males and females serrate to mildly pedunculate. Pronotal collar relatively long and broader than anterior portion of mesoscutum; notauli complete; mesoscutal midlobe with up to 3 pairs of setae (taking care to include those near the notauli); sublateral scutellar grooves present, concave laterally and converging medially (this form not unique). Postmarginal vein subequal or slightly longer than stigmal vein. Median carina of propodeum forked at nucha, forming large areole enclosing nucha; plicae incomplete, projecting from anterior corners of nuchal areole; carina present posterior to spiracle, patch of setae usually present posterior to carina, usually separate from callar setae. Petiole with dorsal and lateral flanges. Compare with: Elachertus, Hyssopus.

deutereulophus mesoscutum.JPG (21861 bytes)  deutereulophus female antenna.JPG (6217 bytes)deutereulophus male antenna.JPG (6158 bytes)
1a-c: Deutereulophus mesosomatic dorsum (left), female antenna (center), and male antenna (right)

deutereulophus propodeum.JPG (33145 bytes) deutereulophus propodeum lateral.JPG (28323 bytes)
2a-b: Deutereulophus propodeum, dorsal view (left), and lateral view (right)


Comments: 17 described species. Similar in many respects to some Elachertus, and may eventually prove to be simply a distinctive species group of Elachertus, or, more preferably, one of many genera retained after splitting Elachertus into manageable monophyletic genera. I have seen several Nearctic, Oriental, and Neotropical specimens that in one or more ways blur the distinction between these two genera, especially in that they frequently have the group of setae posterior to the propodeal spiracle joining the group on the propodeal callus, or lack these setae entirely while possessing most other characters of Deutereulophus.

Comparative information:

Elachertus: Mesoscutal midlobe with at least the first two pairs near the center of the midlobe (all but one pair near the notauli and scutellar border in Deutereulophus). Propodeum without special patch of setae separate from callus setae. Some species of Elachertus have a similarly areolate median propodeal carina and body form, but differ in the characters given here.

Hyssopus: Mesoscutal midlobe with 2 pairs of setae, Median carina of propodeum not areolate. Propodeum without special patch of setae separate from callus setae. Pronotum smoothly arched in profile, without differentiated collar.

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Schauff, M.E. 2000. Review of the species of Deutereulophus (Hymenoptera: Chalcidoidea: Eulophidae) of North America. Journal of Hymenoptera Research. 9(2): 416-426.

Schauff, M.E., J. LaSalle, & L.D. Coote. 1997. Chapter 10. Eulophidae. in "Annotated Keys to the Genera of Nearctic Chalcidoidea (Hymenoptera)". G.A.P. Gibson & J.T. Huber, eds. NRC Research Press, Ottawa.

Image credits: 1a-c, 2b: Schauff (2000). 2a: Schauff, et al. (1997).