BEUTENMULLER, MONOGRAPH OF THE SESIID^E. 259 



./Egeria pacifica (Hy. Edw.). 



Plate XXIX, Fig. 10, Female. 



Trochilium pacificum Hy. Edwards, Papilio, Vol. I, 1881, p. 180 ; Grote, Check List. N. Am. 



Moths, 1882, p. 11 ; Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. IV, 1892, p. 171 ; 



ibid. Vol. VI, 1894, p. 365 ; ibid. Vol. VIII, 1896, p. 117 ; ibid. Vol. IX, 1897, p. 218; 



ibid. Vol. XII, 1899, p. 159. 

 Trochilium calif ornicum Neumoegen, Ent. News, Vol. II, 189 1, p. 108. 



Male. — Head black, orbits and sides yellow ; palpi yellow. Antennae brown black, paler be- 

 neath. Legs yellow. Thorax deep brown, with a yellow line on each side on top, forming an angle 

 in front and running obliquely downward. At the junction of the thorax and abdomen are some 

 black hairs edged w T ith yellow, and a small spot of the same color at the base of the fore wing. 

 Abdomen with first and second segments black, the latter narrowly edged with yellow in front, re- 

 maining segments clear yellow, the third very narrowly edged with black posteriorly, and the fourth 

 and fifth slightly suffused with testaceous. Underside wholly yellow. Wings transparent, nar- 

 rowly bordered with orange brown ; discal mark on fore wing and veins also orange brown. 



Female. — Very similar to the male, but more robust, with the abdomen tapering. 



Expanse : Male, 25-30 mm. ; female, 35-40 mm. 



Habitat. — Nevada, Montana, California, and Washington. 



Types : Male and female. Coll. Hy. Edwards, Am. Mus. Nat. Hist. 



^Egeria tibialis {Harris). 



Plate XXIX, Fig. ii Male, and Fig. 12 Female. Plate XXXIII, Fig. 13, Female, variety. 



Trochilium tibiale Harris, Am. Journ. Arts and Sciences, Vol. XXXVI, 1839, p. 306 ; Morris, 

 Synop. N. Am. Lepid. 1862, p. 138 ; Lintner, 23rd N. Y. State Cab. Rep. 1869 (1872), p. 60 ; 

 Packard, Ins. Inj. For. and Sh. Trees, 1881, p. 123, Bull. No. 7, U. S. Ent. Com.; Hy. Ed- 

 wards, Papilio, Vol. II, 1882, p. 53 ; Grote, New Check List N. Am. Moths, 1882, p. 11 ; 

 Beutenmuller, Bull. Am. Mus. Nat. Hist. Vol. VI, 1894, p. 366 ; ibid. Vol. VIII, 1896, p. 

 118 ; ibid. Vol. IX, 1897, p. 218 ; ibid. Vol. XII, 1899, p. 159. 



Melittia? flavitibia Walker, Cat. Lepid. Brit. Mus. Pt. VIII, 1856, p 67. 



Trochilium minimum Neumoegkn, Ent. News, Vol. II, 1891, p. 108. 



Male. — Head black, orbits and top lemon yellow, as are also the palpi. Antennae jet black. Tho- 

 rax deep brown black, with a very narrow yellow line on each side forming a yellow spot behind and 

 meeting a rather broad curved line on each side in front. Sometimes the two lines on top are very 

 indistinct or almost absent. The lateral line connects with the yellow spot on the base of the fore 

 wings; sometimes the line is broken below the middle. Posterior edge of thorax with black hairs, 

 broadly edged with yellow. Abdomen with first segment black, more or less narrowly edged with 

 'yellow behind, second segment wholly black, third segment yellow, narrowly edged with yellow be- 

 hind, fourth segment wholly brown black, remaining segments brown black, with very narrow yel- 

 low bands behind, or yellow with very narrow brown black bands behind. Anal tuft brown black 

 mixed with yellow. Underside of abdomen brown black with yellow bands. Legs yellow washed 

 with brown. Fore wings transparent with the margins, veins, and discal mark orange brown or 

 deep brown black. Hind wings with the borders very narrow, orange brown or brown black. 



Female. — More robust than the male, with the markings of head, thorax, and wings similar, but 

 as a rule a little more pronounced. Abdomen with the first, second, third, and fourth segments as 

 in the male ; last three sometimes almost entirely golden yellow, with the tip washed with brown ; 

 the fifth and sixth segments are half yellow and brown. Underside yellow, with narrow brown 

 black bands, except the last or last two segments, which are wholly yellow. 



