1
All femora (especially fore femora) with a distinct ventral tooth
present subapically (A). Metapleural lower lobe indistinct (B).
Palpal segment formula 5+3. Body surface almost entirely polished
(B) ...2
– All
femora without a ventral tooth subapically (a). Metapleural lower
lobe distinctly projected (b). Palpal segment formula 6+4. Body
surface at least partly sculptured (b) ...3
2
Prepectal (epicnemial) carina present (A). Propodeum without
depressions (B). Third to sixth metasomal tergites covered with
short setae (C) ...Termitospathius Belokobylskij
–
Prepectal (epicnemial) carina absent (a). Propodeum with several
depressions (b). Third to sixth metasomal tergites completely bare
(c) ...Ceylonspathius Belokobylskij
3
Brachial (subdiscal) cell of fore wing widely open postero-distally
(A). Second metasomal tergite with distinct, complete and
posteriorly convergent longitudinal furrows (B). In male, second
radiomedial vein (r-m) of fore wing
absent. Radial (basal) cell of fore wing distinctly shortened ...Afrospathius
Belokobylskij and Quicke
– Brachial
(subdiscal) cell of fore wing closed postero-distally (a). Second
metasomal tergite without longitudinal furrows (b). In male, second
radiomedial vein (r-m) of fore wing present. Radial (basal) cell of
fore wing not shortened ...4
4
Frons and vertex laterally with distinctly raised protuberances (A).
Antenna subclavate, widened and dorso-ventrally flattened apically
(A). Metanotum with a long dorsal, laterally compressed lamella in
form of inverted triangle (A, B). Metacarp (1-R1) of fore wing
ephemeral in distal half (C). Recurrent vein (m-cu) of fore wing
antefurcal, arising basad of first radiomedial vein (2RS) (C). Hind
tibia with several short and thick spines along its dorsal margin
...Spathioplites
Fischer
– Frons
and vertex without raised protuberances (a). Antenna not widened
apically. Metanotum without such dorsal lamella (b). Metacarp (1-R1)
of fore wing complete (c). Recurrent vein (m-cu) of fore wing
postfurcal, arising apicad of first radiomedial vein (2RS) (c). Hind
tibia without any spines along its dorsal margin ...5
5
Nervulus (cu-a) of fore wing distinctly antefurcal to M+CU / 1M
junction (A). Basal vein (1r-m) of hind wing absent, costal vein
(1-SC+R) fused with mediocubital vein (1-M) (A) ...Parana
Nixon
– Nervulus (cu-a) of fore wing postfurcal or interstitial to M+CU /
1M junction (a). Basal vein (1r-m) of hind wing present, costal vein
(1-SC+R) not fused with mediocubital vein (1-M) (a) ...6
6
Precoxal sulcus absent (A). Metacarp (1-R1) of fore wing on outside
margin almost without setae (B). Nervulus (cu-a) of fore wing
strongly postfurcal to M+CU / 1M junction (B) ...Toka Nixon
– Precoxal
sulcus present (a). Metacarp (1-R1) of fore wing on outside margin
densely setose (b). Nervulus (cu-a) of fore wing interstitial, or
weakly postfurcal to M+CU / 1M junction (b) ...7
7 Scape of antenna long, about 2.0× as long as wide with
distinct projection on the ventral apical margin in lateral view
(A). Notauli absent (B) ...Paraspathius Nixon
– Scape of
antenna short, about 1.5× as long as wide, without projection on the
lower apical margin in lateral view (a). Notauli present (b) ...Spathius
Nees
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