THE CANADIAN ENTOMOLOGIST. 199 



the tip ; venation brown, none of the veins margined, basal costal cross- 

 vein wholly pale ; last dorsal segment of abdomen with two narrow 

 parallel depressions above. Legs pale, femora a little darker at tips, not 

 in middle. In the male the basal joint of tarsus I is shorter than the 

 fifth. Length, lo mm. 



From Glencarlyn, Va., July 23 ; Harrisburg, Penna., Wetzel's Swamp, 

 Oct. 2, and Great Falls, Va., June 18, ^. 



Heptagenia placita, n. sp. 



Male : Head pale, a transverse dark band on vertex ; notum rich 



brown ; pleura pale, mostly white ; abdomen pale, posterior margin of 



dorsal segments narrowly black ; last two 

 segments reddish-brown ; setse very pale, 

 the joinings barely marked ; venter pale; 

 legs pale, femora without median mark, 

 but distinctly darker at tips, tip of tibia 

 I black. Wings hyaline, with brown vena- 

 tion, apical marginal area suffused with 

 brown, basal costal cross-veins black, and 



Fig. i3.-^s>/fl^*«/a /s/acjv«, male forceps costal area bcforc it rather darkened, no 



and last dorsal seg'ment. 



Other veins margined, six cross-veins be- 

 fore bulla, twelve beyond it. First tarsal joint of leg I one-half as long as 

 second joint, and a trifle longer than the fifth joint. Length, 8.5 mm.; 

 wing, g.5 mm. 



From Sport Island, Sacandaga River, N. Y., June 12. (Alexander.) 



Heptagenia tripunctata, n. sp. 



Male : Thorax as dark as in H. terminaia, femora with middle and 

 apical dark bands, tip of tibia I dark ; basal joint of tarsus I one-half as 

 long as second joint, subequal to fifth joint ; a few brown dots on face, 

 especially two near middle below the anterior ocellus. Each segment of 

 the abdomen with three dark dots on its hind border, one at middle, and 

 one on each lower side, near the stigma ; venter unmarked. Wings with 

 dark on the apical costal part ; basal cross-vein very heavy and black, 

 other costals also dark ; anterior pleura with an oblique dark streak ; eight 

 to ten costals before bulla, about fifteen beyond. Length, 10 mm. 



From Milwaukee, Wisconsin, also Westfield, N. Y. 



Heptagenia frontalis., n. sp. 



Male : Pale yellowish, resembling H. pulchella and H. terminata. 

 There is on the face a black spot under each antennae and adjoining the 



