408 THE CANADIAN ENTOMOLOGIST. 



Mr. Watson came down on the evening train, and I reported my 

 kick of success. We held a council of war, and decided that, in view of 

 the scarcity oi polios in the local field, it would be wise to move our base of 

 operations to Lakehurst, a few miles further south, where also the species 

 was known to occur. 



We boarded the 9,05 train the next morning, and reached Lakehurst 

 at 9.20. Crossing the dam of the cranberry bog just north of the station, 

 we started for the highway running back to Lakewood. A rod or two 

 along the north edge of the bog we found two polios playing beside the path, 

 and I sat down to watch them. Mr. Watson elected to go ahead. T soon 

 concluded from the actions of the butterflies that they were unmated 

 males, so turned my attention from them to the surrounding vegetation. 

 There was no sand-myrtle to be seen, and I noticed only one small patch 

 of pyxie. The butterflies were resting on leaves of bearberry ( Ardosta- 

 phylos Jiva-ursi), to which they returned after short flights induced by 

 touching them with a grass blade. Although this plant had not been 

 observed at Lakewood nearer than a quarter of a mile from the road 

 where the butterflies were taken, the fact that it was an ericaceous species 

 suggested the advisability of looking it over. Oh, happy inspiration! On 

 the pedicel of the very first flower examined there was an egg, echinoid and 

 undoubtedly Lycrenid. With a lens the sculpture could be made out, and I 

 recognized it immediately as the egg of polios. Concealing my elation, I 

 proceeded along the path in the direction taken by Mr. Watson, intending 

 to give him a surprise. I was given one instead. He arose from a bed 

 of Arctosiaphylos with a shniit of triumph, and handed me another polios 

 egg which he had found at the base of the leaf-hud. 'I'his double 

 discovery was made at 9.35, fifteen minutes after leaving the train. 



Past disajjijoinlments were forgotten. We began a systematic search 

 for the o\a, and within an hour had collected teii more and an empty 

 shell. 



On the return journey another bearberry patch attracted attention, 

 and we halted long enough to secure five more eggs. A female taken 

 near-by was confined in a can under gauze with some young shoots, and 

 generously added four eggs, bringing the total up to nineteen. Arrived at 

 the Lakewood locality, we put aside our collecting outfits and carefully 

 went over the ground, looking for the food-plant. It was not to be found. 

 We then examined the bearberry nearer the village, in the vicinity of 



