40 BULLETIN 190, UNITED STATES NATIONAL MUSEUM 



which have the antennae nearly black on the upper surface. Thirteen 

 specimens from Arizona are exactly alike. 



In addition to the type, a female from Pinal Mountains, Gila County, 

 Ariz., there is a male from the same region, dated June 10, 1936 (F. H. 

 Parker). Other Arizona records are Fort Valley, Flagstaff, two males, 

 one female, June 10, 1924 (S. A. Rohwer) ; Palmerlee, one male; Chiri- 

 cahua Mountains, Cochise County, one male, six females, June 8-15. 



RAMOSIA ARIZONAE (Beutenmuller) 



Sesia arirjonae Beutenmuller, Journ. Ent. Soc. New York, vol. 6, p. 240, 1898; 



Mem. Amer. Mus. Nat. Hist., vol. 1, pt. 6, p. 288, pi. 32, fig. 31 (female), 1901. 

 Synanthedon arizonae McDunnough, Check list of the Lepidoptera of Canada and 



the United States of America, pt. 2, No. 8709, 1939. 



Female. — Antennae black. Labial palpi yellow. Head black. Collar 

 yellow. Thorax black ; patagia with a yellow stripe ; a yellow lateral mark 

 at the posterior end and a yellow patch beneath on each side. Abdomen 

 black, segments 2, 4, and 6 broadly banded, 3 and 5 narrowly edged with 

 yellow; anal tuft yellow, black at the sides above and beneath. Legs 

 yellow, tibiae black at the spurs. Forewing with costa, veins, outer mar- 

 gins, and fringes black; outer and inner parts between the veins heavily 

 suffused with bright orange; discal mark bright orange, narrowly edged 

 with black inwardly; basal transparent area elongate, outer one small, 

 suffused ; underside orange, except for black outer veins and yellow costa. 

 Hindwing transparent, veins black, discal mark black, edged outwardly 

 with yellow, narrow outer margin black sparsely mixed with coppery 

 scales, fringes dull black, yellow at wing base ; underside with costa, veins, 

 and margins tinted with orange. 



Expanse : 23 mm. 



Distribution. — Arizona and (doubtfully) Texas. 



Type. — Female in the American Museum of Natural History. 



Remarks. — Two females, both imperfect, served Beutenmiiller for the 

 description of this species. The type in the American Museum of Natural 

 History is labeled "Summit Rock, 9.000 ft., Mt. Union, Yavapai Co., 

 Ariz., July 3, 1884" ; the second specimen, in the United States National 

 Museum, also labeled type by Beutenmiiller, is marked "Tex." without 

 further locality or date. If from Texas, which seems somewhat doubtful, 

 the most likely locality would be Davis Mountains in the southwestern 

 part of the State. No additional examples of either sex satisfactorily 

 matching the types have been discovered since description of the species 

 in 1898. A near relationship to arizonensis is suggested, but until sub- 

 stantiated by more material and information on food plants and habits 

 conclusions must be reserved. Dimorphism of the sexes in this group 

 often has led to confusion. 



