Fig. 
oe 
LIST OF PLATES. 
PLATE 1. 
1—Tabanus Atratus. 
2—Tabanus Atratus, cephalic extremity. 
3—Tabanus Lineola, dorsal view. 
4—Tabanus Lineola, side view. 
5—Sareophaga Carnaria. 
6—Hematobia Serrata. 
7—I-Musea Vomitoria. II-Musea Musca 
Domestica. 
8—Stomoxys Calcitrans. 
9—Gastrophilus Equi. 
10—Hematobia Serrata, egg shell. 
PLATE 2. 
1—Suctorial apparatus, Musca Domestica. 
2—Piercing apparatus, Stomoxys Calci- 
trans. 
8—Pulex Serraticeps. 
4—Trombidium Holosericium. 
5—Dermanyssus Gallinae. 
6—Cytodites Nudus. 
PLATE 3a. 
1—Symbiotes Communis var. Caprae, male. 
2—Symbiotes Communis var. Caprae, fe- 
male. 
PLATE 3b. 
3—Sarecoptes Scabel var. Canis male. 
4—Sarcoptes Seabei var. Canis, ovigerous 
female. 
x 
Insertea 
between pag: - 
1E and 1% 
Inserted 
between pages 
32 and 33 
Inserted 
between pages 
52 and 53 
