330 FIFTH REPORT OP THE ENTOMOLOGICAL COMMISSION. 



through the bark making a hole one-eighth inch wide and one half to 

 three-quarters inch long. The bark seemed to be softened with some 

 exudation from the mouth. Most of the cuts I examined reached only 

 to the wood, but a few were much deeper. In the deeper holes I found 

 Cryptarcha ampla curled up." (Bulletin Brooklyn But. Soc. iv. 76.) 



AFFECTING THE LEAVES. 



3. The black walnut sphinx. 

 Smerinthus juglandis Abbot aud Smith. 



(Larva, Plate xi, fig, 2.) 

 Order Lepidoptera; family SPHiNGiDiE. 



Larva. — A large pale blue-green caterpillar with a long caudal horn ; head small, 

 and the body attenuated before aud behind, and with seven oblique white bauds. 

 When disturbed it makes a creaking noise by rubbing cogether the joints of the fore- 

 part of the body. It enters the earth to finish its transformations. (Harris.) 



Moth. — Very gray, dark or dusty browu; wings indented on the outer edges; 

 fore-wings with a dusky outer margin, a short brownish dash near the middle, and 

 four transverse brown lines converging behind aud inclosing a square dark brown 

 spot adjacent to the middle of the inner margin ; hiud wings with two narrow trans- 

 verse brown lines between two brownish bands; thorax with a central brown line; 

 abdominal segments plaited and prominent at the sides. The wings expand from 

 2i to 3 inches. The females are much larger aud of a lighter brownish gray color 

 than the males, with the square spot on the fore-wings less distinct. Ranges from 

 Massachusetts to Florida and Georgia. (Harris). 



4. Datana integerrima G. and R. 



This species has been found by Mr. Pilate to occur commonly on the 

 walnut in Ohio. See p. 150 ; also Insect Life, i, 177. 



5. Datana ministra (Drnry). 



From Mr. D. S. Harris, of Cuba, 111., we learn that in 1882 the cater- 

 pillar of this species " has been so abundant on the black walnut that 

 many persons have cut down their walnut trees when they were near 

 their houses." See p. 302 ; also Insect Life, i, 125, 161, 177, 200 ; ii, 256. 



6. Schizura leptinoides (Grote). 



This has also been found by Mr. Pilate to feed on the walnut. 



7. Actias luna (Linn). 



Mr. J. P. R. Carney, of Camden, N. J., writes me as follows regard- 

 ing the habits of this moth, which he has bred from the walnut : 



In all books of natural history, as far as I have seen, the Luna is accredited with 

 spinning a cocoon in the fall and emerging the following May or June. On July 24 

 I found on a large walnut, facing the residence of Hon. Thomas Dudley, a fine Luna 

 larva. Carefully placing it in my larva box I conveyed it home, and in two days 

 after it spun its cocoon and on August 12 merged as a moth, a fine male specimen. Not 

 having any female specimen my investigation was brought to a stop, but on looking 

 over my notes I find that on several occasions I have taken the moth during May and 



