( Ixxvii ) 



nest had its boundary at a corner a few yards away. In 

 neither of these gardens would a new queen find a corner that 

 was not well patrolled by ants in quest of food. 



"The new queen's chance of life is still further limited by 

 the fact that she cannot stand too much wet, while dust and 

 dryness is almost immediately fatal to her. 



" It may be worth observing that if a lot of black ants are 

 feeding together some will be found quite large and others 

 very much smaller. The difference in size is obvious to the 

 naked eye, and is confirmed by a measurement of the width 

 of heads, etc., under the microscope, and that these two newly 

 hatched ants are both of the very smallest size." 



The President, exhibiting a series of Selenia bilunaria, said 

 that he had seen no notice of a form that is met with of this 

 species, and not observed by him in any other insect, viz, that 

 with the fore-wings very much broadened, so that a line drawn 

 from the apex to the anal angle nearly equals the length, and 

 if the insect is set with the inner edges of the fore-wings at 

 right angles with the body, the costal edges would be at an 

 angle of about 90° to each other. The exhibit included 

 specimens many years old from the President's cabinet, of the 

 particulars of which he had no record : also ten examples 

 out of many hundreds bred this year from several dozen 

 different broods, only one of which broods, comprising about 

 sixty individuals, included the abnormal ones. There was 

 nothing very special in their'treatment. Mr. Barrett describes 

 one aberration of the kind in Ns^nia typica as "most 

 extraox'dinary . " 



Pa2:>ers. 



Mr. W, J, Kaye read " Some Notes on the Dominant 

 Miillerian Group of Butterflies from the Potaro River 

 District of British Guiana." 



Mr. G. J. Arrow read " A Contribution to the Classification 

 of the Coleopterous Family Passalidse." 



