PLATE VIII. 



AsiRACA cLAvicoRNis. (Page 28). 



Fig. 1. — Imago, showing its peculiar anterior limbs, 

 fitted for burrowing, like those of the mole-cricket. 



Fig. 2. — Dorsal view of the head, showing the position 

 of the eyes and the insertion of the antennae. The 

 prismatic form of the basal joint, and the tubercular 

 character of the second joint is to be remarked ; also 

 the mode of the carination on the vertex {v). 



Fig. 3. — The elytron and the wing. 



Fig. 4. — The serrated character of the tarsus is 

 marked ; and here is seen the first indication of the 

 spurred wing-like scale at the extremity of the tibia, a 

 characteristic of all the Delphacids. 



Fig. 5. — Enlarged view of the fore leg. 



Fig. 6. — Caudal end, with its basal plates, its anal 

 tube, and short anal style. 



Fig. 7. — Portion of a nervure of the elytron, with its 

 row of bulbous hairs. 



Delphax pulchella. (Page 29.) 



Fig. 8. — Macropterous form of the male insect. 



Fig. 9. — Brachypterous form, the elytron barely 

 reaches half the length of the abdomen. 



Fig. 10. — Front view of the head, showing the points 

 of insertion of the antennas, the frons (/), and the 

 fore legs (/, /). 



Fig. 11. — Pygofer of the male seen from behind, 

 showing the anal style or cauda (a), the curiously 

 shaped prehensive styles (s, s), and the sheath of the 

 penis between these. 



Fig. 12. — Ventral aspect of the pygofer of the 

 female, a. The anal tube, with its style, li. The 

 sheath containing the saws. b. The basal plate. 

 t. The lateral valve. 



Figs. 13 and 14. — The elytron and wing of Belphax 

 pulchella. The neuration of both organs is more 

 simple than that of either the preceding or the follow- 

 ing genus. 



