return to: Eul 1 Eul 4 ent 1 eud 1 cir1 eul 1
eul 5 eul 10
eul 14 eul 17
eul 20 eul 24
Erdös & Novicky, 1951 comparative info return to: prev(eul 6) prev(eul
Females brachypterous, orange-yellow in color except for black, shiny
recessed scrobal grooves extending to median ocellus and transverse markings on
frons that may be indistinct. Notauli complete. Supracoxal flange expanded into
broad translucent flange overhanging metacoxa; distinct carina extending
laterally from above flap to under propodeal spiracle, sometimes forming a Y-shaped
carina; propodeal sculpture distinctly granular in females, shiny and similar to that of Elachertus
in males. Males brownish and macropterous, indistinguishable from those of Elachertus
using generic characters. Compare with: Elachertus-males only.
Xanthellum transsylvanicum female
Comments: Extremely poorly
known. 1 described species: X. transsylvanicum Erdös. Likely renders Elachertus
paraphyletic. Certain Neotropical species have the dark scrobal grooves found in
females of this species, but have macropterous females and no laminar supracoxal flange.
Elachertus: Males indistinguishable using
generic characters. Females are easily distinguishable, and males are best identified by
association with females. The males of Xanthellum that I have seen are small and
brown, with a very thin, laminar supracoxal flange, shiny but still brownish scrobal
grooves, distinctly setose eyes, and flattened flagellum. Unfortunately, various males of
other Elachertus species have one or more of these characters as well.
return to top
Askew, R.R. 1968. Hymenoptera 2. Chalcidoidea section (b). Handbooks
for the Identification of British Insects. 8(2)b.
Jansson, A. 1958. Studier över svenska chalcidider 5-6. Entomologisk
Tidskrift. 79(3-4): 123-130.
Image credits: Askew (1968).