EXPLANATION OF PLATE V. 



All the figures enlarged unless ofkerivise stated, the hair-lines indicating 

 the natural sizes. 



Fig. I. — Egg-pod of Caloptenus di^erentialis vfith the mouth torn open, 

 exposing the newly hatched larva oi Eficauta vittata (i «) eating 

 into an egg, and the passage which it made through the mucous 

 covering — natural size. 



Fig. 2. — Dorsal view of the first larva, or triungulin, of E. vittata \ 2 a, 

 one side of the head of same from beneath, greatly enlarged so as 

 to show the mouth-parts; 2 b, terminal joint of maxillary palpus 

 showing imbrications and flattened inner surface armed with stout 

 points; 2 c, leg, showing more plainly the tarsal spines; 2 e, 

 labrum ; 2d, one of the abdominal joints from above, showing 

 stout points, stigmata, and arrangement of spinous hairs. 



Fig. 3. — Eggs of ^. vittata, the natural size indicated at side. 



Fig. 4. — Dorsal view of the Carabidoid stage of the Second Larva of E. 

 vittata; 4a, its antenna; 4^, its right maxilla; 4c, its leg: ^d, 

 side view of same, showing its natural position within the locust- 

 egg mass. 



Fig. 5. — Lateral view of the Ultimate or full-grown stage of the Second 

 Larva of E. vittata ; 5 a. portion of the dorsal skin, showing 

 short setaceous hairs. 



Fig. 6. — Third head, or that from the Scarabaeidoid stage of the Second 

 Larva of E. vittata, from beneath, showing the reduction of 

 mouth-parts as compared with the first head (2 a) ; 6 a, antenna 

 of same; 6b, maxilla of same; 6c, mandible of same. 



Fig. 7. — Fourth head, or that of the full-grown larva of E. vittata, from, 

 above; 7 a, leg of same; 7 3, the breast-plate or prosternal corne- 

 ous piece. 



Fig. 8 — Lateral view of the pseudo-pupa or Coarctatc Larva of E. vit- 

 tata, vi\\h the partially shed skin adhering behind; 8 a, dorsal 

 view of same; 8^, its head, from the front; 8c, same from side; 

 8rf, tuberculous leg; 8e, raised spiracle : Sf, anal part of same. 



Fig. 9. — Lateral view of the true pupa oi Epicauta einerea Forst; <)a, ven- 

 tral view of same. 



Fig. 10. — Eficauta vittata {lemniscata or trivittate var.) 



Fig. II- — Epicauta cinerea Font. (= ma rginaf a Fa.hr.) 



Fig. 12. — Antenna of the triungulin of Eficauta pennsylvanica ; 12 a, 

 maxilla of same; 12^, labial palpus of same. 



Fig. 13- — <S Hernia minutipennis, dorstd view; i^'a. lateral view of same; 

 13^, simple claw of same ; 13c, Coarctate Larva; 13*/, legof 

 ultimate stage of Second Larva. 



