THE CANADIAN ENTOMOLOGIST. 305 



DESCRIPTIONS OF NEW SPECIES OF CECIDOMYID^. 



BY WILLIAM BEUTENiMULLER, NEW YORK. 



Asphondylia soiidaginis, sp. nov. — Male and female. Eyes black. 

 Face and posterior portion of the head sordid-orange, with a few long 

 black hairs. Neck orange. Thorax above slaty-brown, with short whitish 

 hairs in the two longitudinal grooves, and with rather long brownish hairs 

 along the sides. Scutellum slaty-brown. Sides of thorax dull orange, 

 marked with black. Abdomen dull slaty-brown, sparsely covered with short 

 appressed whitish hairs ; junctions of segments dull orange ; under side 

 wholly dull orange with vvhitish hairs. Legs of female black, femora 

 whitish basally, junctions of femora and tibife narrowly white : first joint 

 of tarsi pinkish-white. Legs of male paler than in the female, somewhat 

 pinkish in certain lights, and with the white band on the junction of the 

 femora and tibiae less distinct. Wings densely covered with blackish 

 scales. Halteres dull orange, with brownish-black scales. Length of 

 male, 2.50 to 2.75 mm.; of female, 2.50 to 3 mm. Expanse of male, 4.50 

 mm.; of female, 6 mm. 



Gall. — Monothalamous. Pale green, rounded somewhat, blister-like, 

 much broader than high, single, or two or three in a row coalescing. 

 Inside it is white, and contains a large larval chamber. It is formed 

 between two, three or four leaves fastened together, the gall protruding 

 on the upper and under side of the leaves. Width, 2.50 to 3.50 mm.; 

 height, 2 mm. 



Habitat. — Fort Lee, New Jersey ; Staten Island and Bronx Park, 

 New York City; Valley of the Black Mts., North Carolina (W. B.) ; 

 Ithaca, New York (J. G. Needham). 



Very common in certain localities. 



The gall is evidently formed in the young buds of the plant when 

 the immature leaves are galled by the larva, and remain fastened together 

 as the leaves develop and become mature. The gall becomes mature late 

 in June and early in July. The larvse transform in the galls, and the flies 

 emerge early in July. The gall is found on the Golden-rod ( Solidago 

 serottna), ai'd it seems to be confined to this species of plant. 



Cecidomyia /ystmachice, sp. nov. — Male and female. Eyes black ; 

 face and posterior portion of the head white. Antennse brown. Thorax 



eptomber, 1907 



