84 BULLETIN 132, UNITED STATES NATIONAL MUSEUM 



usually wrongly identified as lanceolana. For accurate and certain 

 determination of any Bactra a genitalia preparation is necessary. 

 Fortunately these organs (both male and female) show good specific 

 differences. . 



Male and female genitalia figured from specimens in National 

 Collection from Europe (male) and Washington, D. C. (August 

 Busck, July, female). 



Distribution. — Ontario, District of Columbia, South Dakota, Illi- 

 nois, Tennessee, Missouri, Louisiana, Alabama, Texas, Montana, 

 California. 



Alar expanse. — 10-16 mm. 



Type. — In British Museum. 



Type locality. — England. 



Food plant. — Juncus. 



3. BACTRA VERUTANA Zeller 



(Figs. 47, 171. 346) 



Bactra laiiceolana verutana Zellee, Verb. Zool.-bot. Ges. Wien, vol. 25, 

 1875, p. 247. — Febnald, in Dyar List N. Amer. Lepid., no. 5006, 1903. — 

 Barnes and McDunnough, Check List Lepid. Bor. Amer., no. 6789, 

 1917.— Forbes, Memoir 68, Cornell Univ. Agr. Exp. Sta., 1924, p. 470. 



A common species in Florida and the other Gulf States. The 

 typical form occurs rarely in northern localities. Described as a 

 variety of lanceolo/ria and so listed in our catalogues. It is, how- 

 ever, quite distinct, 



Male and female genitalia figured from specimens in National 

 Collection from Orlando, Fla. (G. G. Ainslie, March, 1914, male, 

 and "2-2-18," female). 



Distribution. — Florida, Texas, Mississippi, Louisiana, North Caro- 

 lina, Indiana, Missouri, Ontario, Alberta. 



Alar expanse. — 11-17 mm. 



Type. — In British Museum. 



Type locality. — Dallas, Tex. 



Food plant. — Cy perms (U. S. Bureau of Entomology rearing). 



4. BACTRA VERUTANA ALBIPUNCTA, new variety 



(Figs. 46, 347) 



A Rocky Mountain race of verutana, with darker head (pale 

 brownish ocherous) and with brownish fuscous rather than blackish 

 markings on fore wing. In well-marked specimens the outer discal 

 dark spot is continued in a dark shade to mid costa and there is a 

 distinct white dot at end of cell. The chief differences, however, 

 are in the male genitalia. In alhipuncta spine cluster Spd^ is 

 grouped on the outer margin of the raised area of sacculus while in 



