THE CANADIAN ENTOMOLOGIST. 199 



From Sea Cliff and Ilhaca. N. Y., Great Falls, Chain Bridge and 

 Glencarlyn, Va., June lo Sept. 



Scoliid.ï: 

 The triie Scoliidae are most easily recognized from all other familie-^ 

 of this superfamily by the striated nature of the apical part of both 

 wings. The strongly emarginated eyes also distinguish them, but some 

 other forms have the eyes slightly emarginate. 



SCOLIA 



The species of Discolia have in the female a smooth macula on 

 the sides of the second abdominal segment ; it is less distinct in the 

 male. Our species of this section known to me may be tabulated on 

 colour marks as follows : 



1. No pale marks on head or thorax ; costal area, venation and the entire 



wing black 2. 



Pale marks on head or thorax 6. 



2. Abdominal segments fringed with black hair; abdomen black at tip. . 3. 

 Abdominal segments fringed with fulvous hair ; abdomen reddish at 



tip 4. 



3. Broad, while bands on second and third segments, no spots on 



venter bicincta Fabr, 



White spots or band on first segment ; bands on second and third seg- 

 ments more or less broken into two spots ; two spots on second 



ventral segment undata KUig. 



Widely separated white spots on sides of several segments, sometimes 

 only on third ; no ventral spots ; abdomen more 

 elongate guttata Burm. 



4. No yellow spots on abdomen, more than apical half 



reddish hœmatodes Burm. 



Yellow spots on third, sometimes also on fourth segment 5. 



5. Black hair above on fourth and fifdi abdominal segments ; second seg- 



ment usually black dubia. 



Only reddish or yellowish hair on fourth and fifth segments ; second 

 segment more or less reddish (from Palmerlee, ArizDua) . .t/ialia, n. sp. 



6. Abdominal segments margined with dark or black hair ; second and 



third segments with yellow spots ; wings and venation all 



black 7iobilitatx Fabr. 



Abdominal segments fringed with fulvous hair 7. 



