The Scottish Naturalist. loi 



copulation instantly takes place ; the male then suspending 

 himself from the female, when the vibration of her wings as 

 instantly ceases. I took a pair and detached them, the male 

 making no signs of life, but rolling about in the box as if he 

 had ceased to exist. And so he remained until I took him 

 home, and placed him in the Cyanide bottle, when he died 

 after a kick or two. I think the hovering of the male of 

 fiwnuli may be more reasonably compared to that of the 

 kestrel hawk when in search of food, and probably he selects 

 some spot in which to watch for the female, which his instinct 

 tells him is likely to be selected by her, though of course other 

 senses than that of sight may be brought into use to effect his 

 object. 



Harpyia furcula. — I have never taken this insect myself, but 

 Mr. Herd takes both the larva and perfect insect off willow 

 at the south-western base of Moncreiffe Hill, up to an 

 altitude of about 150 feet, where he tells me it is of mode- 

 derately frequent occurrence. 



H. vinula. — The larva of this insect is common wherever wil- 

 lows and poplars grow, on the sweet-scented tacamahac, as 

 well as on the white poplar and aspen. I have taken the full 

 fed larva wandering across a mown grass lawn, fifty yards from 

 its food plant. 



Notodonta ziczac. — I only know of one specimen of this 

 insect having been taken at Moncreiffe, and that was an imago 

 found at rest on a rock face by Mr. Herd, at an altitude of 

 about 400 feet. 



Dryjjionia chaonia. — I am inclined to think that this insect 

 is not uncommon at Moncreiffe, and is probably generally 

 distributed. I found a pupa under moss lying so near the 

 surface, that my attention was attracted to it by seeing it 

 shining in the sun through the moss. It was under a spreading 

 oak, and was from 12 to 15 feet from the trunk. There is no 

 •oak copse on Moncreiffe Hill, and most of the oaks are high- 

 branched trees, so that it is difficult to discover the larva of 

 the oak-feeding species. Mr. Herd took a specimen on May 

 ist; I found one on the 24th April, on an oak trunk, at 10 a. m., 

 .and another I found dead on the branch of a spruce, which 

 was overtopped by an oak. It had apparently died a natural 

 death, and was in splendid condition. These were taken in 

 1874-1875. 

 Leioca??ipa dictceoides. — Mr. Herd has taken the larva of this 



