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NoDiiadea avion. — Through the kindness of friends I have twice 

 seen this ovum laid in nature. In both instances the egg had 

 been deposited at the base of a floret on a head of wild thyme, 

 and being white was somewhat conspicuous. They were sent 

 to me in June, and hatched a few days later. The shape is quite 

 lycfenid, being a spheroid with upper and lower surfaces much 

 flattened, the dimensions being height -Smm. and greatest width 

 •65mm. The sculpture is very beautiful and of an exceedingly 

 fine nature. The niicropyle is situated at the bottom of a fairly 

 large depression, with a comparatively smooth area around it, 

 beyond which, so far as I can make out, the pattern consists of 

 rings of four-rayed star-shaped prominences with more or less 

 circular pits between the rays. These pits show a lovely green 

 colour under magnification, if the specimen is not too near 

 hatching. 



Nenieobins lucina is an insect laying an egg of a type entirely 

 different from any I have yet described, being very nearly globular, 

 but with the base flattened and the surface of the shell smooth 

 and shiny. In colour, pale, semi-transparent and greenish ; they 

 may be found in late May or June on the undersides of the lower 

 leaves of cowslip plants growing in open glades amongst trees or 

 bushes, and are usually in small batches of two or three up to as 

 many as nine or ten on a leaf. The size is -Gmm. greatest height, 

 and 'Tnim. wide. The Qgg would be at once classed as an arctiid 

 from its appearance alone. As is well known, the larval hairs 

 are visible through the shell just before hatching, and appear as 

 a dark network of comparatively large mesh, another point of 

 similarity with many arctiid species of moths. 



Adopaa thawiias. — The life-history of this species with details 

 of oviposition has been so admirably described by Mr. F. W. 

 Frohawk in the " Entomologist " for September, 1912, that it is 

 really superfluous for me to refer to it, but for the sake of 

 continuity and as a species which I have myself seen laid in the 

 wild, I may perhaps be permitted to give my own observations. 

 The eggs are oval in shape, flat on the upper and lower surfaces, 

 and the measurements I took of them were : — greatest length 

 1mm., greatest width -Smm., greatest height -Smm. Colour, 

 palest yellow with a tint of green and very slight roughness of 

 shell, which was shiny or waxy in appearance. Four eggs were 

 laid in a row up the centre and on the inside of a blade of grass, 

 each being separated from the next by a space of just over two 

 millimetres, and they were most accurately placed with their longer 



