40 PHILIP P. CALVERT. 



I have examined eleven males of ?'/;iocfa from Maine, Pennsylvania 

 and South Dakota, in all of which I find that when the inferior ap- 

 pendage is viewed from below, its lateral margins diverge very per- 

 ceptibly from base to apex. In the males of Hageni and proxima 

 which I have seen, the lateral margins are approximately parallel. 



The internal branch of the genital hamule in intacta varies to 

 some extent in different individuals, being sometimes more slender 

 than fig. 7 represents it. 



In addition to the localities given for hdada by Dr. Hagen in 

 1875 (Massachusetts, Ohio, Illinois, Wisconsin and Ontario), I can 

 add Manchester, Kennebec Co., Maine, May 25th to July 4th (by 

 Miss M. Wadsworth) ; Volga, Brookings Co., South Dakota, June 

 27th (by Mr. P. C. Truman) ; Philadelphia, June 17th, and Bristol, 

 Pa., June 16th (by Mr. S. F. Aaron in Amer. Ent. Soc. collection). 



EXPLANATION OF PLATE V. 



Fig. 1. Inferior appendage of Leucorhhiia intacta % viewed from lielow. 

 " 2. The same of L. Hageni % . 



3. Genitalia of L. Hageni % , viewed fi-om the side. 

 " 4. " " viewed from helow. 



" 5. Genitalia of L. proxima % , viewed from tiie side. 

 " 6. " " viewed from helow. 



" 7. Genitalia of L. intacta % viewed from the side. 

 " 8. " " viewed from below\ 



" 9. Vulvar lamina of L. intacta 9 • 

 " 10. Vulvar lamina of L. Hageni 9 • 



" 11. Appendages of Lepfheniis gravida 'J, , viewed from the side. 

 " 12, 13. Two forms of inferior appendage of L. gravida % , viewed from helow. 



a, Internal branch of genital hamule. 



b, Internal division I „ ^ , , , ^ ., , , 



, ,. . . (01 external brancli or genital hamule. 



c, Lxternal division ) 



d, Genital lobe. 



