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perhaps most frequently selected. I have counted 80 eggs in a 

 batch, but should not expect this to be nearly the maximum 

 number. One small batch of eight eggs I had under observation 

 were all parasitized, and instead of producing larviO, a number of 

 very tiny black flies came out of a hole which was bitten out of the 

 shell of each. I have never observed the eggs to be superimposed, 

 but always arranged in one flat layer on the leaf. They are to be 

 found in June. The shape is that of three-fourths of a sphere, 

 and they rest on the fiat base. Colour, dirty-whitish with a 

 conspicuous black spot indicating the micropylar area, and all black 

 from below a line drawn around at the widest diameter, the light 

 and dark portions being thus very sharply separated, and marking 

 the species as one easily identified. The size is 1-Omm. in diameter 

 and -SSmm. high. They usually hatch between two and three 

 weeks after being laid. 



Asphalia dilitta.— On December 27th, when searching oak-twigs 

 for ova of Zeplujrusi quercus with my friend. Dr. T. A. Chapman, we 

 found several ova which proved to be this species. They were 

 pushed in between the buds at the extreme end of the twigs, and 

 were of a dirty-white colour, sculptured faintly with longitudinal 

 ribs. The shape was oblong, squared at one end and rounded at 

 the other, and flat at top and bottom. Dimensions, length l-lmm., 

 maximum width -Gmm., thickness •4mm. These hatch out early 

 in April. 



I'olypldca n'ilens. — I have never found the ova v*^ild-laid, but 

 some empty eggshells were lent me by Mr. R. M. Prideaux, which 

 were placed at the base of winter buds of oak and affixed to the 

 twig. The shape of the egg is rather oval and flattened, with well- 

 marked longitudinal furrows. The approximate size is, length 

 Imrn., width -Smm., thickness -Gmm., but, unfortunately, I do not 

 appear to have any note of the colour. 



Oryijia antiqiia : The apterous female of this species always lays 

 her ova in a single layer batch on the outside of her cocoon, and 

 these may be found in all sorts of places, such as under the coping 

 of walls, on gate-posts, fences, tree-trunks, twigs, leaves, etc., 

 throughout the winter. The egg is nearly globular, rather flattened 

 ■on the top, enclosed within a stout opaque shell of a light stone 

 colour. The micropylar area is marked by a rather large dark- 

 coloured spot, and there is a ring of the same colour around the 

 outside at the widest part of the shell. Within this ring, the 

 surface of the shell is roughened with small pits, but below it 

 is nearlv smooth. Width -SSmm., height •7mm. 



