352 Dr. H.Stadelmann: Bericht über die wissensch. Leistungen im 
Es folgt dann eine Bestimmungstabelle der einzelnen Unter- 
ordnungen der Hymenopteren, nämlich. 
I. Sub-order Heterophaga. Abdomen petiolate or subpetiolate, never 
broadly sessile; larvae apodous 
* Hypopygium entire and closely united with the pygium, the 
sting or ovipositor always issuing from tip of abdomen. 
a. Pronotum not extending back to tegulae 
Tarsi dilated or thickened I Antophila Hartig 
Tarsi slender, not dilated II Entomophila Ashm. 
aa. Pronotum extending back to the tegulae 
+ Apical segments of Abdomen normal 
° Petiole or first segment of abdomen simple, without 
scales or nodes 
Wings usually folded longitudinally in repose; if 
straight the antennae ending in a large club. 
III Diplopteryga Latr. 
Wings not folded longitudinally in repose 
IV Fossores Latr. 
% Petiole or first segment of abdomen with one or 
more scales or nodes; sexes usually 3, $23 
V Heterogyna Latr. 
++ Apical segments of abdomen tubular and retractile, 
telescopic like, visible dorsal segments from 3—5 
VI Tubulifera Latr. 
+++ Apical segments of abdomen usually tubular, but not 
retractile or telescopic like VI Oxyura Latr. 
** Hypopygium divided or never undivided with the pygium; 
ovipositor originating some distance before tip of abdomen. 
Front wings without a stigma VII Stenospili Ashm. 
Front wings with a stigma IX Megaspili Ashm. 
II. Sub-order Phytophaga. Abdomen broadly sessile; larvae with legs. 
Anterior tibiae with 1 apical spurs. I. Xylophaga 
Anterior tibiae with 2 apical spurs. II. Phyllophaga 
Die Familien sind folgendermassen angeordnet. 
| I. Apidae 
lenuls, em: 
III Crabronidae 
IV Pemphredonidae 
V Bembicidae 
VI Larridae 
Entomophila VII Trypoxylonidae 
VIII Philanthidae 
IX Nyssonidae 
X. Sphecidae 
XI Ampulicidae 
XII Masaridae 
Diplopteryga | XIII Vespidae 
e XIV Eumenidae 
oO 
oO 
