APPENDIX TO CHAPTER II 43 



Ci. Anterior wings folded once lengthwise ; 

 antennae usually clearly bent at an 



angle Vespidce 



(Wasps) 



C2- Anterior wings not folded lengthwise. 

 d\. Abdomen appended or peduncu- 

 late, oval or broadest anteriorly, 

 gradually tapering posteriorly . 



Superfamily Fossoria 



(Digger and Mud Wasps) 



d 2 . Abdominal stalk formed of one or 

 two knots or scale-like rings ; an- 

 tennse flagellum-like . ; . Formicidce 



(Ants) 



2 . Trochanter of two segments ; female with ovi- 

 positor. 



61. Abdomen not sessile, but appended or pedun- 



culate ; anterior rings without lancet-cells ; 

 hind wings with two root-cells . 



Superfamily Entomophaga 



(Parasitic and Gall-producing Hymenoptera) 



6 2 . Abdomen sessile (or continuous with thorax) ; 



anterior wing with lancet-cell ; hinder wing 

 with three root-cells . . Superfamily Phytophaga 



(Plant-eating Hymenoptera) 



