EXPLANATION OF THE PLATES. 
Vor, i; 
i - 
PLATE IV. 
HYMENOPTERA. 
Fig. 1. Sirex Gigas. 
2. Evania appendigaster magnified. 
3. Nomada Marshamella. 
DIPTERA. 
4, Pedicia rivosa. 
5. Sericomyia Lapponum. 
PLATE V. 
1. Oxypterum Kirbyanum, Leach. magnified. 
APHANIPTERA. 
2. Pulex irritans magnified. 
APTERA. 
3. Ricinus Pavonis magnified. 
4, Araneamarginata. Donovan. 
5. Chelifer cancroides magnified. 
6. Scolopendra forficata, 
fThis leaf has been reprinted for the accommodation of those who 
may prefer binding the Plates, Indexes, and Synoptical Table, in a 
. separate volume.] 
