16 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 79 



seldom uniting at apex. Body beneath with sides of metasternum 

 and abdomen more or less darkened. Length, 6 mm. to 9 mm.; 

 width, 2.5 mm. to 4 mm. 



Type locality. — " Middle and Southern States." 



DistHhution. — Nova Scotia (Halifax) ; Ontario (?) ("Windsor "), 

 New Hampshire (Chocorua) ; Massachusetts; Connecticut; Rhode 

 Island; New York; New Jersey; Pennsylvania; Ohio; Illinois; 

 Wisconsin; South Dakota (Brookings); Kansas; Missouri; Texas 

 (Belfrage collection) ; Alabama (Tumblin Gap and Monte Sano) ; 

 Georgia (Stone Mountain). 



Food flant. — Goldenrod, Solidago. 



Rentiafrks. — The coarse, shallow punctation and sparse pubescence 

 of the elytra at once distinguish this from the finely punctate, 

 densely pubescent canadensis and adeJa., and the sparse pubescence 

 separates it from the larger species, hacharidis. One specimen from 

 Stone Mountain, Ga., collected by P. W. Fattig, and two from Ala- 

 bama, collected by H. P. Loding, I have rather doubtfully placed 

 with virgata. They are more slender and parallel and distinctly 

 (not so confluently) punctate on the elytra, and are more heavily 

 marked, the occipital spot becoming a wide basal band, and the 

 elytral vittae joining at the apex. In the Stone Mountain specimen 

 the vittae widen so as to coalesce shortly behind the middle, leaving 

 only a very narrow, pale, abbreviated vitta as in hacharidis. All 

 three specimens unfortunately are females. 



5. TRIRHABDA BOREALIS, new species 



Plate 1, Fi^ire 5 



Description. — Small, oblong, pale ; head with wide black occipital 

 band, prothorax with three black spots, elytra with wide black 

 sutural and lateral vittae; elytra more finely punctate than in 

 virgata. Head alutaceous with obsolete shallow punctation, very 

 lightly pubescent; occipital band across base curving broadly down 

 front, but not attaining margin of eyes. Antennae with third joint 

 shorter than fifth, fourth long. Prothorax barely twice as broad as 

 long, slightly arcuate, sometimes feebly obtuse-angulate ; surface 

 alutaceous with scattered coarse punctures; spots moderately large 

 and black. Scutellum black. Elytra rather finely but confluently 

 punctate, with short fine pubescence ; lateral and sutural vittae wide 

 and black and usually not united at apex. Body beneath pale with 

 narrow dark margin to metasternum and abdomen, in Montana 

 specimens this margin becoming very wide and leaving only a narrow 

 pale median line. Length, 6 mm. to 7 mm. ; width, 2 mm. to 3 mm. 



Type. — Collected by H. B. Hungerford, July, 1927, at Douglas 

 Lake, Mich. U.S.N.M. No. 43017 (with 5 paratypes). Six para- 

 types deposited in collection of Kansas University. 



