206 THE CANADIAN ENTOMOLOGIST 



out, enclosing the middle ocellus alternata Say 



( =texana Cr.) 



3. Fovece on segment 2 linear or very small, legs more or less red; 



teeth on sides of segment 5 large, rudimentary teeth on sides 

 of segment 4. Apical margin of 4th ventral segment 

 lamellate and minutely emarginate 4, 



Foveas comparatively large and wide (though often shallow), legs 

 usually black, teeth on sides of segment 5 rather small, no 

 trace of teeth on sides of segment 4 7. 



4. FovecE linear, each about Yi mm. long, with a narrow impunc- 



tate margin completely surrounding it; (Good character! — T. 

 D. A. C); the hair on head and thorax rather longer, insect 

 larger; length 8 to 10 mm rufitarsus Sm. 



Fovece rudimentary, not more than 34 mm. long, sometimes 

 minute, resembling a large puncture, hair on head and thorax 

 rather shorter, insect smaller ; length 7 to 9 mm . octodentata Say. 



7. Fovece and the region anterior to it very closely punctured, the 

 elevation posterior to it impunctate; transverse grooves on 

 segments 2 to 4 widely interrupted in middle, apical felt 

 bands on segments 1 to 4 wide at sides, on segment 1 widely 

 interrupted in middle, on segments 2 to 4 very narrow across 

 middle; segments 2 to 4 more coarsely and remotely punc- 

 tured; punctures on mesonotum far enough apart to give it 

 a slight shine; hair on base of segment 1 

 adpressed lucrosa Cr. 



The anterior region of each fovea not closely punctured, the eleva- 

 tion posterior to it remotely punctured; transverse grooves on 

 segments 2 to 4 uninterruped in middle; apical felt bands on 

 segments 1 to 4 less wide at sides, less narrow in middle, 

 on segment 1 not interrupted in middle; segments 2 to 4 

 more finely and more closely punctured; mesonotum so 

 closely punctured as to appear dull; hair on base of segment 

 1 upstanding moesta Cr . 



Females. 



1. Last ventral segment with a small notch on each side near the tip . 3. 

 Last ventral segment not notched 2. 



