BIOLOGICAL NOTES ON ORIENTAL IIEMIPTEIIA. 



573 



The third iustar is still more elongate, and lias the fore tibiae very 

 distinctly laniinately dilated (fig. 3). The fourth instar is very simi- 

 lar to the third, except for the greater development of the tegminal 

 pads (fig. 4j. In the second, third and fourth instars, the lateral 

 margins of the pronotum, etc., are increasingly strongly crenulate, this 

 being apparently characteristic of many Cimicid nymphs in the older 

 stages even when they are not crenulate in the adult : in Erthesina, 

 the adult also has these mart>ins crenulate. 



Text fig. 1. 



Explanation of Figures. 



Plate D. — Erthesinafnllo, adult. 



Plate E., fig. l. — Nymph of the same, an hour or two after 



hatching. 



„ 2. — N'ymph of the second iustar. 



„ 3. — Nymph of the third instar. 



„ 4. — Nymph of the fourth instar. 



Text fig. 1. — Egg of the same, showing hatching-lover. A = natural 



r>a 



Size. 



