12 
td 
a 
6 ZOOLOGICAL EXERCISES. 
Section HETEROGYNA. 
ANALYSIS OF THE FAMILIES. 
. Peduncle of abdomen with one node . Poneride. 
Peduncle of abdomen with two nodes. 
Maxillary palpi long, six-jointed . Myrmicide. 
Maxillary palpi short, five-jointed Attide. 
Section PUPIVORA. 
ANALYSIS OF THE FAMILIES, 
. Abdomen attached to the top of the meta- 
thorax . . Hvanude. 
. Abdomen attached to the end of the meta- 
thorax. 
a. Abdomen petiolated 
* Abdomen rounded, or depressed. 
Ovipositor short . Ichnewmonide’ 
Ovipositor long ; Cryptide, 
** Abdomen compressed at the extre- 
mity . Ophionide. 
b. Abdomen sessile . ; Pimprlide, 
OrDER COLEOPTERA. 
ANALYSIS OF THE SECTIONS. 
. All the tarsi five-jointed Pentamera. 
. Posterior tarsi four-jointed, the others five- 
jointed . . Heteromera.* 
All the tarsi apparently four-jointed, the 
penultimate joint being very minute .  Zetramera.t 
. All the tarsi apparently three-jointed, the 
penultimate joint being very minute . Trimera.t 
* Some species belonging to Zrogostide and Cucujide are heterome- 
rous, but in these cases it is the basal joint of the posterior tarsi that 1s 
minute or obsolete. 
| Colydiide has also the tarsi four-jointed. 
t The Pselaphide are trimerous, but are usually placed in the 
Brachelytra, 
