BEUTENMULLER, MONOGRAPH OF THE SESIID^E. 291 



may be recognized by the bright orange legs, very narrow margins of the wings, 

 and by the three basal abdominal segments being orange beneath. 



Sesia saxifragae {Hy. Edw.). 



Plate XXXI, Fig. t, Female. 



Algeria saxifrages Hy. Edwards, Papilio, Vol. I, 1881, p. 190; Grote, New Check List N. Am. 



Moths, 1882, p. 12 ; Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. IV, 1892, p. 173 ; ibid. 



Vol. VI, 1894, p. 91. 

 Sesia saxifrage Smith, List Lepid. N. Am. 1891, p. 20 ; Beutenmuller, Bull. Am. Mus. Nat. 



Hist. Vol. VIII, 1896, p. 135. 

 Algeria henshawii Hy '. Edwards, Papilio, Vol. II, 1882, p. 56; Grote, New Check List N. Am. 



Moths, 1882, p. 12 ; Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. IV, 1892, p. 173. 

 Sesia henshawii Smith, List Lepid. N. Am. 1891, p. 20. 



Male. — Head, thorax above and abdomen wholly black with a bronzy lustre. Palpi orange, 

 tips black. Thorax beneath with an orange patch on each side. Legs orange, femora black. Fore 

 wings transparent, with borders black with a blue or violet lustre. Costal and inner border nar- 

 row ; outer border broad. Discal mark large and conspicuous ; base of wings with a few orange 

 scales. Underside orange along the costa. Hind wings transparent, with outer margin narrow, blue 

 or violet black. Discal mark small. Underside same as above. 



Female. — Similar to the male, but the palpi are black above and at the tips, orange beneath. 

 The legs are washed with black and the discal mark on the fore wings is marked with orange. 

 Otherwise the same as the male. 



Expanse : Male and female, 18-23 mm. 



Habitat. — Labrador, Colorado. 



Types : One male ; Algeria henshawii, one male. Coll. Hy. Edwards, Am. Mus. Nat. Hist. 



Closely allied to S. fulvipes in color and general appearance. It differs from 

 that species by the absence of the orange on the first three abdominal segments 

 beneath and by having the margins of the fore wings much broader, thus reduc- 

 ing the transparent spaces. Its life-history is not known. 



Sesia pictipes (G. & R.) 



Plate XXXI, Fig 10, Female. 



Algeria pictiftes Grote & Robinson, Trans. Am. Ent. Soc. Vol. II, 1868, p. 182, pi. II, fig. 64 ; Bailey, 

 N. Am. Entomol. Vol. I, 1879, pp. 17-21, pi. ; Kellicott, Can. Ent. Vol. XIII, 1881, 

 p. 7 ; ibid. Vol. XXIV, 1892, p. 46; Martin, 5th Rep. Nox. Ins. 111. (Thomas), 1880 

 (1881), p. 109; Grote, Bull. U. S. Geol . Surv. Hayden, Vol. IV, 1881, p. 257 ; New 

 Check List N. Am. Moths, 1882, p. 12 ; Fernald, Stand. Nat. Hist. Vol. II, 1884, p. 464 ; 

 Weed, Am. Nat. Vol. XXIII, 1889, p. 1108, fig.; Beutenmuller, Ann. N. Y. Acad. Sc. 

 Vol. V, 1890, p. 204 ; Bull. Am. Mus. Nat. Hist. Vol. V, 1893, p. 251. 



Sesia pictipes Smith, Cat. Ins. N. J. 1890, p. 289 ; List Lepid. N. Am. 1891, p. 20 ; Beutenmuller, 

 Bull. Am. Mus. Nat. Hist. Vol. VIII, 1896, p. 134 ; ibid. Vol. IX, 1897, p. 220 ; Webster, 

 Bull. Agricul. Exp. St. Ohio, No. 68, 1896, p. 25 ; Lugger, 4th Rep. Ent. Agricul. Exp. St. 

 1898 (1899), p. 6s, fig. 63. 



