PLATE X. 



LiBURNiA viTTiPENNis. (Page 32.) 



Fig. 1. — Macropterous male, showing the venation 

 of the elytra and wings. 



Fig. 2. — Macropterous female, which is larger. 



Fig. 3. — Part of the male pygofer, with its peculiar 

 anal process (pygotheqne ?) and its style. This last is 

 not to be confomided with the ordinary male styles, 

 which are not here shown, but are inserted below the 

 anal process. 



Fig. 4. — Pygofer, with the saw enclosed in valves. 



LiBURNiA LONGiPENNis. (Page 32.) 



Fig. 4. — Macropterous male. The wing-neuration 

 may be studied as typical. 



Fig. 5. — Part of the pygofer of the female, with the 

 saw-case and anal process embedded in cottony fibre. 



LiBURNiA ScoTTi. (Page 33.) 



Fig. 6. — Macropterous female ; fig. 7, a pale variety ; 

 and tig. 8, the winged male : all in relative sizes. 



Fig. 9. — The twisted styles of the male of L. vitti- 

 prunis. 



Fig. 10. — The styles of the male of L. ijuttula. 



