A REVISION OF THE DELTOID MOTHS SMITH. 51 



upward, but not sicklelike, nor backward. 'Die l)ody is iiKMlerate or 

 slight, the abdomen cylindrical, subeciiial, leachin^' to or slightly 

 exceeding the anal angle of secondaries. Tlie wings are large, trigo- 

 nate, wide, with arched costa, rectangidar apices, and evenly curved 

 outer margin. Venation normal. Legs long and (piite robust, witliout 

 armature, save the usual si>urs oftlie middle and liind tibia-, and tliese 

 are long and unequal. 



In the male the moditication is (juite dilTerent in the s[)ecies. In //. 

 metonalis it resembles that usual in Uormisa, while iu H. eumelusalis 

 the tuftings ecpml or exceed iu prominence any found in Zanclof/natha. 



The essential characters of the genus are the lengthily ami eveidy 

 pectinated antenna' of the male combined with the pal])al structure 

 and broad rounded wings. 



The two species referred to here are so similar in type of maculation 

 that, when rubbed, there is sometimes a (piestion as to si)ecies, and yet 

 they are quite strongly distinct, structurally. The difference between 

 the palj)! was pointed out by Mr. Grote; that between the forelegs of 

 the male seems to have esca])ed him. 



F. cumelti.saJis, Avhich may be considered the type of the genus, is 

 larger in average expanse and darker, the luteous ground strongly 

 l)owdered with brown scales, whicii form a rather distinct, though dif- 

 fuse, median band, and a (juite nuirked shade preceding the subtermi- 

 nal line. The median lines, on the other haud, are vague and <)bs(;ure. 



In P. we/o/«((/i6' the ground color is paler and much more even; the 

 median shade, when visible, as it usually is, only a little darker, while 

 the subterminal shade is barely traceable in most instances. The 

 median lines, however, are usually distinct, though narrow and thread- 

 like, and are more even than in its ally. 



Further ditferences will appear in the detailed descriptions of the 

 species, neither of Avhich is rare. 



ANALYSIS OF THE SPECIKS OF PHILOMETltA. 



Palpi directed straight forward, diverging at tip; auteuna of uialc leiigtiiily l)i])ec- 

 tiiiatcd, the branches slender, setose MKroXAi.is. 



Palpi directed obliiiuely upward, diverging from base; antenna of niah; bipeeti- 

 nated, the branches stont, with stout, long bristles near tij) eimell'salis. 



Philonietra metonalis, Walker. 



1859. Walker, Cat. lirit. Mus., Heterocera, XVI, 236, Ihrmiiiia. 

 1893. Smith, Bull. U. S. Nat, Mns., 41, 383, rhilomvtiu. 



(jaonalits, Walker. 

 1859. Walker, Cat. Brit. Mns., Heterocera, XTX, 87(5, Kpi:cnx\s. 

 1893. Smith, Bnll. I'. S. Nat. Mns.. 41, 383, J'hilomcfrii. 



loii(/ilahris, (irote. 



1872. Grote, Trans. Am. Entomological Soc, IV, 99, 309, I'liilontelrn. 



1873. Grotc, Bnll. Bnft". Soc. Nat. Sci., I, 40, I'hUometra. 

 1893. Smith, Bull. U. S. Nat. Mus., 41, 383, pr. syu. 



