308 BEUTENMULLER, MONOGRAPH OF THE SESIID^E. 



Sesia mariona, sp. nov. 



Plate XXXIII, Fig. 21, Female. 



Female. — Head white, vertex pinkish ; collar pale pinkish above, white beneath ; palpi white. 

 Antennae black, with a greenish lustre. Thorax green black with a very large bright red patch on 

 each side in front, contiguous with the bright red line on each side above. Abdomen and anal tuft 

 wholly metallic green black. Legs metallic green black, anterior coxae white. Fore wings metallic 

 green black with a broad, bright red line along the inner margin ; extreme edge of costa pale testa- 

 ceous or dirty white. Hind wings brown with a violaceous lustre, central part with two trans- 

 parent areas, the upper one broken by the discal mark. Underside of wings brown with a decided 

 violaceous lustre, costal margins pale testaceous. 



Expanse : 17-20 mm. 



Habitat. — Trimble and Pagossa Springs, and Durango, Colorado, July 6th, 19th and 30th, 1899. 



Type : Two females. Coll. Dr. William Barnes, Decatur, Illinois. One female. Coll. Am. 

 Mus. Nat. Hist. 



Described from three females. The male and earlier stages of the species 

 are unknown. 



Sesia polygoni {Hy. Edw.). 



Plate XXXII, Fig. 8, Female, and Fig. 9, Male. 



Pyrrhotcenia polygoni Hy. Edwards, Papilio, Vol. I, 1881, p. 202 ; Grote, New Check List N. 

 Am. Moths, 1882, p. 12 ; Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. IV, 1892, p, 

 174 ; ibid. Vol. VI, 1894, p. 95 ; Vol. VIII, 1896, p. 144. 

 Pyrrhotcenia nieadii Hy. Edwards, Papilio, Vol. I, 1881, p. 204 ; Grote, New Check List N. Am. 

 Moths, 1882, p. 12 ; Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. IV, 1892, p. 174. 



Male. — Head and collar black ; palpi bright scarlet red, black outside. Thorax black with a 

 bluish lustre, patagia tipped with red posteriorly. Underside with a red patch on each side. Legs 

 black, middle and hind tibiae each with a broad scarlet band. Abdomen black with a bluish lustre, 

 fourth and last two segments, and lateral stripe scarlet red. Anal tuft scarlet red with a blue black 

 stripe laterally. Fore wings bright metallic blue black with a scarlet stripe along the inner margin, 

 fringes brown ; underside orange basally. Hind wings transparent, margin violaceous, red 

 basally on the inner margin, fringes brown. Underside same as the upper. 



Female. — Somewhat like the male, but the hind wings are bright scarlet red with the outer 

 border broadly brown black with a violaceous lustre. Abdomen with the fourth and last segments 

 scarlet red ; lateral red line also present. 



Expanse : Male and female, 18-20 mm. 



Habitat. — California. 



Types : One female ; P. meadii, two males. Coll. Hy. Edwards, Am. Mus. Nat. Hist. 



Sesia achillae {Hy. Edw.). 



Plate XXXII, Fig. 10, Male. 



Pyrrhotcenia achillce Hy. Edwards, Papilio, Vol. I, 188 1, p. 203 ; Grote, New Check List N. Am. 



Moths, 1882, p. 12; Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. IV, 1892, p. 174; 



ibid. Vol. VIII, 1896, p. 144. 

 Pyrrhotcenia eremocarpi Hy. Edwards, Papilio, Vol. I, 1881, p. 203 ; Grote, New Check List N. 



Am. Moths, 1882, p. 12 ; Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. IV, 1892, p. 174. 



