334 ENTOMOLOGICAL SOCIETY 



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. Anthophila Hartig. 

 Tarsi slender, notdilated...!!. Entomophila Ashm. 



aa. Pronotum extending back to the tegulae. 



f 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 usu- 

 all J 3, cT9 V. Heterogyna Latr. 



ft Apical segments of abdomen tubular and re 

 tractile, telescopic-like, visible dorsal seg 

 ments from 3-5 VI. Tubulifera Latr. 



tft Apical segments of abdomen usually tubular, 

 but not retractile or telescopic-like. 



VII. Oxyura Latr. 



** Hypopygium divided or never united with the pygium ; ovi 

 positor originating some distance before tip of abdomen. 

 Front wings without a stigma. ..VIII. Stenospili Ashm. 

 Front wings with a stigma IX. Megaspili Ashm. 



II. Sub-order Phytophaga.** Abdomen broadly sessile: larvae with legs. 



Anterior tibiae with i apical spur I. Xylophaga. 



Anterior tibiae with 2 apical spurs II. Phyllophaga. 



The series indicated above represent the following families, 

 which may be arranged consecutively thus : 



* Petioliventres Haliday. ** Sessiliventres Haliday. 



