251 



TABLE OF HYMENOPTERA.' 



SECTION I. TEREBRANTIA. 



Abdomen of furnished with a sawing or boring 



ovipositor. 



Hind legs. The trochanter two-jointed. 

 Antenna various in form and number of joints. 



SUBSECTION I. PHYTIPHAGA (Plant-eaters). 



Abdomen attached to the thorax 'by its whole 

 width. 



I. Serrifera (Sawbearers). 



Ovipositor of in form of a double saw. 

 Tibia of fore-leg furnished with two spines. 

 Tongue trifid. 



Family 1. Tenthredinidae (Sawflies). 

 H. Terebellifera (Borers, or Wood-eaters). 

 Ovipositor of in form of a strong borer. 

 Tibia of fore-leg furnished with one spine. 

 Tongue simple. 



Family 2. Uroceridse (Wood-borers). 



SUBSECTION II. ENTOMOPHAGA (Insect-eaters). 

 Abdomen attached to the thorax at one point, or 

 by a small stalk. 



* Some of the characters in this Table, used to facilitate reference, are 

 merely empirical, and apply to British species only. 



