f)2 THE CANADIAN ENTOMOLOGIST. 



posterior femora with a black area on the outside ; posterior tibia? more or 

 less infuscate. Wings hyaline ; veins brownish. For relative length of 

 veins see figs, i and 2. 



Abdomen seen from above pointed ovate ; segment 5 twice as long 

 as 4, its posterior margin broadly concave ; segment 3 two-thirds as long 

 as 4 : dorsum of abdomen black, the venter brownish, the amount of 

 brownish varying in different specimens ; sometimes a band runs up on 

 the side of segment 5 so as to be visible from above ; on segment 6 the 

 brownish on the anterior margin is nearly continuous across the dorsum ; 

 on segment 7 the black is confined to a large basal triangular spot, which 

 does not quite attain the tip. The abdomen is smooth and shining, with 

 a very delicate hexagonal reticulation of impressed lines. The relative 

 length of the segments as seen from the side is shown in fig. 3. 



Male: Length, 2.7 nun.; abdomen, 1.2 mm. Differs from the 

 female in having the thorax entirely black (in two specimens only are the 

 pleurse brownish), in the greater amount of black on the head and in the 

 very small amount of brownish on abdomen. 



Median longitudinal depression ofpropodeum with a distinct furrow, 

 irregularly rugose, sometimes with the ridges so arranged as to give a 

 median carina. 



Antennae black, with the scape yellowish, except distal half above; 

 pedicel below and ring-joint yellowish ; the funicle joints pedicellate and 

 distinctly constricted in the middle, clothed with two whorls of long hairs. 

 The first joint of the club is more distinctly separated than the last two. 

 Posterior femora and tibiae darker than in the female. 



Petiole much longer than posterior coxae, three-fifths as long as rest 

 of abdomen, finely rugulose, with a short median and two lateral carinae at 

 the posterior end. Abdomen seen from the side straight below, highly 

 arched and squarely declivous in front. The relative proportion of the 

 segments as seen from the side are shown in fig. 4. 



Described from 5 females and 17 males, reared during the summer 

 of 1908 from seeds of Virginia Creeper, Parthenocissus quinquefolia, 

 collected at Ithaca and Taughannock Falls, N. Y. Under natural condi- 

 tions the adults appear during late July and early August. 



Eurytonia r/iois, n. sp. — Female : Length, 1.7 to 2.S mm.; abdomen, 

 .9 to 1.5 mm. General colour black ; head and thorax densely umbilicate- 

 punctate. 



Dorsal view of the head is shown in fig. 7. In form and sculpture 

 the thorax is very similar to that of Eurytomocharis triodice. Propodeum 



