SYSTEMATIC ZOOLOGY. 125 
Section GRESSORIA. 
A. Fore legs raptorial ; Mantide. 
B. Fore legs like the others Phasmide. 
| Section SALTATORIA. 
A. Elytra horizontal in repose , Gryllide. 
B. Elytra inclined in repose. 
Antenne long . Locustide. 
Antenne short . Acridide. 
ORDER HYMENOPTERA. 
ANALYSIS OF THE SECTIONS. 
A. Posterior trochanters single ; no exserted ovipositor. 
a. Antenne not distinctly elbowed. 
Basal joint of posterior tarsi dilated Mellifera. 
Basal joint of posterior tarsi cylin- 
drical , ; Fossores. 
b. Antenne distinctly elbowed . Heterogyna. 
B. Posterior trochanters two-jointed; antennz 
not elbowed. 
Females with an exserted ovipositor . Pupwove. 
Females with a retractile borer . Lerebrantia. 
Section MELLIFERA. 
Posterior legs with long hairs ‘ Andrenidy, 
Section FOssoREs. 
ANALYSIS OF THE FAMILIES. 
A. Antenne scarcely longer thanthe head. Crabronidw. 
B, Antennz much longer than the head 
Posterior tibize spinose ‘ » Lomprlide. 
Posterior tibize unarmed , ax Thynnidee. 
