*».>-• 



462 ANNUAL REPORT OF NEW- YORK 



BLACK TTALNTJT. BUTTERNUT. 



13. THE ELACK W ALl^VT. —Juglans nigra. 



The Locust-tree borer {Clyfus Robinia) is a common borer in 

 the trunks and limbs of the black walnut, and the beetles which 

 are reared in this tree appear to constitute a distinct variety of a 

 larger size than usual and with their yellow marks changed more 

 or less to a white color. 



186. Black-TValxut Sphinx, Smerinthus Juglandis, Abbot and Smith. 

 (Lepidoptera. Sphingidse.) 



Eating the leaves, a large pale blue-green worm tapering in both 

 directions from its middle and with a small head, a long horn at 

 the end of its back and seven oblique white streaks along each 

 side; when irritated making a creaking noise by rubbing the 

 anterior joints of its body together; burying itself under ground 

 through the winter and changing to a chestnut colored pupa with 

 a rough granulated surface and six small tubercles upon its head; 

 producing a narrow- winged moth of a drab gray, cinnamon-yellow 

 or bluish lilac color, its fore wings crossed by four rusty brown 

 lines, the two forward ones transverse the two hind ones parallel 

 with the hind margin, and with a large square rusty brown spot 

 on the middle of the inner margin between the two middle lines. 

 Width 2.25 to 3.00. See Silliman's Journal xxxvi, p. 292. 



14. THE BJJTTERNXJT .—Juglans cinerea. 



AFFECTING THE TRUNK AND LIMBS. 



187. Spotted Leptostylus, Leptostylas macula, Say. (Coleoptera. Ceram- 

 bycidse.) 



Under the bark of old decaying trees, a grub similar to that of 

 the Prickly Leptostylus No. 4, changing to a pupa in its cell and 

 early in July giving out a small thick long-horned beetle of a 

 })rown or chestnut color with the sides of its thorax and a band 

 on its wing covers ash-gray, the latter sprinkled over with coarse 

 punctures and large blackish dots, the thorax on each side of its 

 disk with a black stripe interrupted in its middle. Length 0.25 



