AMERICAN LKPIDOPTERA. 31 



Vein 2 of forewing arising from common stem of 3 and 4 ; vein 7 and 8 stemmed. 



Veins 5 and 6 of hind wing stemmed Group I. 



All veins of hind wings free Group II. 



Vein 2 of forewings arising from cell Group III. 



GROUP I. 



But one species, M. rusticella Hb.. belongs here. 



GROUP II. 



Forewings with pale tornal patch. 



Costa without dark spots before the middle I»i fla v i niiK'ii lei la. 



Costa with oblique, brown spots ma rgi n isl rige I la . 



Forewings with a large trapezoidal costal spot, no tornal patch, maiiac'liella. 



GROUP III. 



Head and thorax whitish or yellowish white dorKlstrigella. 



Head and thorax saffron-yellow. 



Dorsal margin of forewing yellow crocicapitel la. 



Dorsal margin of forewing not yellow irrorella. 



M. rusticella Hb.— Dyar's List, p. 570, No. 6489. — Palpi pale, yellowish 

 white. Head yellowish, antennae dark brown. Thorax and forewings fuscous 

 browu, with purple reflection, spotted with dark velvety brown and sprinkled 

 more or less with whitish scales, which, on the. costa, give rise to distinct, though 

 inconspicuous spots; a pale patch above the vitreous spot and another at begin- 

 ning of dorsal cilia, often absent in the female; cilia grayish, with darker divid- 

 ing line. The vitreous spot does not extend beyoud two-fifths the wing length. 

 Hindwings over 1 ; grayish fuscous, with brassy or purplish reflection. 



Exp. 14.0-20.0 mm. (Meyrick); 0.56-0.8 inch. 



Hab. — Europe, Asia, North America, New York. 



Four specimens in my collection from central New York (Ithica); 

 in none of tliese is there any indication of the pale costal and tornal 

 patches. 



JI. Itiilai iiuacule lla Clem.— Dyar's List, p. 571, No. 6495. — Palpi yel- 

 lowish, labials tinged with fuscous externally. Head pale ochreous, slightly 

 mixed with brown in front. Antenna? dark fuscous, basal joint velvety black 

 above. Thorax dark seal brown, with a large yellowish spot anteriorly and a 

 smaller, less distinct one at its posterior extremity. Forewiugs purplish brown, 

 with faint purplish reflection, with numerous, velvety brown, transversely placed 

 spots; a large pale yellow subtrapezoidal costal spot occupying the middle third, 

 two or three small dots on costa before the apex, a spot at beginning of dorsal 

 cilia and some small dots in the basal part of the latter. Cilia fuscous, with 

 three dividing lines. Hindwings pale yellowish, sparsely dusted with fuscous, 

 cilia pale gray, with darker in the basal portion. Abdomen fuscous, apical half 

 of segments above silvery gray. Legs yellowish, dusted with fuscous, more espe- 

 cially so the anterior pair. 



Exp. 14.0-16.0 mm.; 0.56-0.64 inch. 



TRANS. AM. ENT. SOC. XXXI. JANUARY. 1905. 



