350 FIFTH REPORT OF THE ENTOMOLOGICAL COMMISSION. 



17. IJthocolletls castaneweJla Chambers. 



Fig. 131 represents three blotch miues on the upper side of a chest- 

 nut leaf, which commonly occurs at Providence, which we suppose to 

 be the work of this Tineid. 



18. The chestnut tree-hopper. 



Smilia castanece Fitch. 



Order Hemiptera ; family Membracid.e. 



Puncturing the leaves and extracting their juices in July, a triangular tree-hopper, 

 shaped much like a beechnut, of a blackish color, tinged with green more or less when 

 alive, its head and the anterior edges of its thorax and all beneath bright yellow, its 

 fore- wings clear and glassy, with a blackish spot on their tips and another on the base, 

 which is often prolonged along the middle of the wing and united with the hind spot. 

 Length of male, 0.25 ; female, 0.30 inch. (Fitch. ) 



19. The unadorned trek-hopper. 



Smilia inornata Say. 



A tree-hopper of the same size and shape as the preceding, but of a light green color 

 fadiuo- to light yellow, with a slender black line along the upper edge of its back, and 

 a very slight duskiness on the tips of its glassy wings. Common on chestnuts and 

 oaks from July to the last of September. (Fitch.) 



20. The chestnut gay-louse. 



CnUipterus castanew Fitch. 



Order Hemiptera ; family Aphidid.e. 



On the under sides of the leaves, puncturing them and sucking their juices in August 

 and September, a small sulphur-yellow plant-louse, with black shanks and feet, its 

 antenufe also black except at their bases and as long as the body, its wings pellucid, 

 their first and second oblique veins and the tip of the rib- vein edged with coal-black, 

 and its thighs straw yellow. Length, 0.09; expanse of wings, 0.15 inch. (Fitch.) 



21. The chestnut phylloxera. 



Phylloxera castanece (Haldeman). 



In Auimst and September, on both sides of the leaves, puncturing them and extract- 

 ing their juices and causing them to curl, a very small louse-like dy of a bright sulphur- 

 yellow color, with a black thorax, breast and eyes, its feet and antennte tinged with 

 blackish and its wings translucent. The wingless individuals associated with it are 

 entirely yellow, with red eyes. (Haldeman.) 



AFFECTINa THE FRUIT. 



22. The chestnut weevil. 



Balaninus caryatrypes (Boheuuin). 



Eating large cavities in the meat of the chestnut, a soft, white, footless grub, attain- 

 ing its full size when chestnuts are ripe, and remaining in the nuts through the winter ; 

 transforming into a weevil with an exceedingly long and slender beak. 



The chestnut is often infested by a large white maggot (Fig. 132, larva 

 of Balaninus and chestnut infested), with a yellowish head, which 

 attains its full size at the time the nuts drop. It is found in nuts sent 

 to market, and it is probable that while some of the maggots gnaw their 



