CHAPTER VII. 



1. TENTHREDO SEMIRUFUS. 

 Tenthredo semirvfus, Norton, Proc. Ent. Soc. Phila., iii, 12. 



1 9 specimen; Eastern Nevada ; 1872; Dr. H. 0. Yarrow. 



2. TENTHREDO VARIEGATUK. 

 Tenthredo variegatus, Norton, Proc. Ent. Soc. Phila., iii, 12. 



1 c? specimen; Eastern Nevada; 1872; Dr. H. C. Yarrow. 



3. UROCERUS AREOLATUS 

 Urocerus areolatus, Cress., Trans. Am. Eut. Soc, i, 375. 

 1 9 specimen; Colorado; Dr. H. C. Yarrow. 



i. UROCERUS EDWARDSII. 

 Urocerus Edwardsii, Brulle, Hyin., iv, (Mo, pi. 45, f. 1. 

 1 9 specimen; Arizona; Jas. M. Rutter. 



5. UROCERUS CYANEUS. 

 Sirex cyaneus, Fab., Ent. Syst., ii, 127. 



1 9 specimen; New Mexico; J. Alborn. 



6. UROCERUS ALBICORNIS. 



Sirex albicornis, Fab., Eut. Syst., ii, 127. 



1 9 specimen, with bright orange-yellow wings; New Mexico; J. 



Alborn. 



7. UROCERUS FLAVICORN1S. 



Sirex flavicornis, Fab., Ent. Syst., ii, 126. 



Sirex bizonatus, Steph., Kirby, Fn. Bor.-Am., iv, 250. 



3 9 specimens; Eastern Colorado ; 1873; Dr. J. T. Rothrock ; New 

 Mexico; Dr. H. C. Yarrow. 



8. TREMEX COLCMBA. 

 Sirex columba, Linn., Syst. Nat., ii, 929. 



1 9 specimen, with abdomen pale yellow, with rive narrow black 

 t'asciaj; South Arizona; H. W. Henshaw : 1874. 



7OT 



