OF WASHINGTON. 63 



Head and thorax white. 



Fore wings with white space below orbicular followed by a blackish 

 patch. 



Hind wings all brownish sutrix Grote. 



Hind wings nearly all white altera Smith. 



Fore wings largely leaden gray megocula Smith. 



Head blackish, collar black tipped. 

 Fore wing with white space below orbicular followed by a quadrate 



blackish patch mediatrix Dyar. 



Fore wing without discolorous dark patch tripartita Smith. 



Acontia ceyvestensis, n. var. 



Similar to aprim Illibner, but smaller and the head and thorax white. 

 Three examples are marked like dprica Hiibner on the wings, two others 

 like biplaga Guenee. Expanse 20 to 24 mm. 



Five specimens, Key West, Fla. 



Type. No. 7687, u. S. National Museum. 



I conclude that aprica and biplaga are varieties of one species, 

 although Smith has recorded the contrary opinion.* Indeed a 

 series of 40 specimens before me shows the two forms to inter- 

 grade. One of the specimens from Texas (form aprica} has 

 only a little of the dark color left on the vertex of head and thus 

 closely approaches the local race ceyvestensis. 



Oncocnemis laticosta, n. sp. 



Thorax blackish, variegated with pale ocherous scales, collar largely of 

 the pale color; abdomen light. Fore wings pale ocherous in ground 

 color, the inner two-thirds of wing heavily overlaid with blackish, pow 

 dery, not obscuring the marks. Lines as in m lalutea Smith, black, 

 edged with pal?, crenulate; basal line obsolete, t.-a. slightly arcuate, 

 t.-p. bent out beyond cell with white points on veins 2 and 4. Terminal 

 space dark shaded, enclosing the pale, broken, irregular subterminal line. 

 Ordinary spots pale ocherous, filled by a darker shade; orbicular elongate, 

 claviform punctiform, nearly obsolete. A row of terminal black dashes 

 outlined by narrow pale arcs. Fringe brown, cut by white, interlined in 

 gray. Hind wings white, a smoky narrow outer border, fringe white. 

 Expanse 30 mm. 



Five specimens, Jerome, Arizona (Oslar). 



7'ype.No. 7688, U. S. National Museum. 



Nearly allied to melalutea Smith, but differing in the more 

 diversified color, the contrasting pale tint of costal area, the 

 elongate orbicular and the whiter, more narrowly bordered hind 

 wings. 



* Trans. Am. Ent. Soc., xxvir, p. 69, 1900. 



