EXPLANATION OF THE PLATES:. 
Bites 
PLATE VI.» 
FIG. 
1. Head of Mylabris. Upper side, or face. 
2. - Under side, or subface. 
3. Trophi of Dytiscus, Six pieces. 
4. Head of Locusta. Face. 
5, ——- Front view, to exhibit the mouth. 
6. Trophi of ditto. Seven pieces. 
7. Head of Cicada. Face. 
8. Scutellera. Subface. 
oO 
. Trophi, or promuscis of Hemiptera. Three pieces. 
10. Head of Aishna. Face. 
1], ————-—-—-. Front view. 
12. Trophi of ditto. Seven pieces. 
or antlia of Lepidoptera. Four pieces. 
of Panorpa. Three pieces. 
PLATE VII.° 
- Head and trophi of Phryganea L. Face. 
Vespa Crabro, Ditto. 
. Trophi of Bombus. 
. Head of Tabanus L, Face. 
. Trophi, or proboscis of ditto. (Reaum.) 
— Bombylius*. 
. Head of Oxypterum. Face. 
NOT ROD = 
* Recourse must be had to the synoptical table of the nomencla- 
ture of the parts of the external crust of Insects (Vot. III. p. 353) for 
the explanation of the reference letters not here given. 
> Vor. I. p. 393—. III. p. 354—, 404—. IV. p. 314—. 
© Thid. 4 Probably e’ is resolvable into two pieces. 
VOL. RPE: SA 
