Sédiìcc da 13 Novembre UÌV2. 137 



The passing of the hot summer months in a 

 quiescent non I'eeding condition he it in the egg, 

 larval, pupal or adult stages is known as aestivation. 



The passing of the winter months in a simihir 

 manner is called hibernation. 



Quite possibly this fact of aestivation may explain 

 to some extent the disappearance in early spring and 

 summer and re-appearance in autumn of A. ypsilon 

 in the basin lands of Upper Egypt. 



Although we now know that this nocluid aesli- 

 vales during the summer in Lower Egypt it would 

 also appear to be active during the same i)eriod 

 since the moths have been taken throughout the 

 summer. 



A Note on the Oviposition of Sternspis sqiiammosa. 



I will now exhibit for your inspection some 

 curious structures found on the twigs and branches of 

 the Tamarisk tree (Tamarix articulala) which I believe 

 to be the ova of the handsome Buprestid — Slenispis 

 sqiiamnwsa. 



These ova consist of two main parts: the outer- 

 portion is hard and brittle and forms a protective 

 covering to the inner part or egg proper, which has 

 a thin transparent, membranous shell. Presumably 

 the protective covering is soft and viscid when the 

 egg is passed out and then hardens on exposure to 

 the air. The ova somewhat resemble scale insects of 

 the genus Lecanium and are generally formed on the 

 under side of the branches or occasionally on the 

 trunk itself. 



