424 Records of the S.A. Museum 



From an examination of these undamaged examples it is evident that the 

 head cannot entirely overlap the anterior paJe portion of the pronotum; the 

 actual condition is shown in fig. 373. 



EXPLANATION OF PLATES. 



Plate X. 



Fig. 1. Enithares hcrgrothi clinging to plant stem. 



Fig. 2. Anisops hyperion, with guard hairs spread at surface. 



F]g. 3. Eggs of Anisops hyperion partially inserted in leaf of Vallisneria 



spiralis; note the slits denoting abortive attempts to insert the 



ova in the thin tissue. 

 Fig. 4. Two of the eggs further enlarged; note the eyes of the developing 



embryo. 

 Fig. 5. Eggs of a Corixid (Porocorixa eurynomel), for comparison. 



Plate xi. 



Fig. 1 to 10. Anisops hyperion. 



Fig. 1. Eggs in situ in Potamogeton stem; note the exposed portion. 



Fig. 2. Egg, showing developing eye-pigment, etc. 



Fig. 3 to 7. Dorsal and (a) ventral views of the five nymphal instars: the 



actual size from first instar nymph to imago is shown at (b). 

 Fig. 8. Ventral view of adult female. 

 Fig. 9. Intermediate leg of fifth instar nymph, showing the developing 



imaginal leg as seen through integument ; note the two-jointed 



tarsus within the monomerous tarsus. 

 Fig. 10. The -left member of the pair of gouging gonapophyses of the ovipositor ; 



fig. 10a shows the tip of the organ further enlarged. 

 Fig. 11. Left gouging gonapophysis of Anisops dor is. 

 Fig. 12. „ „ „ „ „ gratus. 



Fig. 13. „ „ „ „ „ stali. 



Fig. 14. „ „ „ ,, ,, calcaratus. 



Fig. 15. „ „ „ „ „ fieheri. 



