121 



The ideas which I have developed in the foregoing pages make, of 

 course, no claim to perfection or infallibility, because the empirical facts 

 on which they were based were cjuite insufficient. A certain degree of 

 probability, however, will perhaps be conceded to them, and they may 

 hereafter receive confirmation from other sources. Those who have at 

 their disposal more abundant material than I have had may accept my 

 challenge to use such material for the purpose of testing the conclu- 

 sions to which I have arrived. Whether these conclusions shall in 

 part be overthrown or shall be proved correct, — in either event such an 

 investigation will b» exceedingly rewarding, and cannot fail to bring to 

 light much that will prove interesting. 



APPARENTLY NEW SPECIES OF N. AMERICAN 

 HETEROCERA. 



Bv Henry Edwards. 



ZYGJENIT>JE, 



Pseudalypia Crotchii, Hy. Edw. Var. Atrata, n. var.— Entirely 

 brassy black, excepting the costa, which is narrowly cream-white. 

 The rather broad and distinct transverse band so characteristic of the 

 typical form, is here entirely wanting. i $ . 



Los Angeles, Cala. Coll. A. J. Bolter. 



BOMBYCIDiE. 



Seirarctia Bolteri, n. sp.— Size of 6". Clio. Primaries bright 

 chestnut-brown, with the usual stripes as in ^. Echo, very clear silvery 

 white, thus showing a strongly marked contrast with ground color. 

 The stripes are thus arranged: one dull costal streak not reaching the 

 apex, a median streak from near base to external margin, and one 

 from base along the internal margin to internal angle. At the apex 

 are two short streaks, and between the' median and internal streaks are 

 three others resting on the median nervule. The secondaries are sordid 

 white with a very distinct roseate tinge along the abdominal margin. 

 Beneath, the markings are repeated with a few streaks of brown on 

 secondaries. Head and thorax chestnut-brown, with pinkish streaks; 

 abdomen brownish rose color. Feet and legs as well as the whole of 

 the under side rusty brown. 



Las Vegas, N. Mex., 7000 feet. Type, coll. A. J. Bolter. 



Heterocampa superba, n. sp. — Ground color of primaries pale 

 yellowish fawn color. Behind the middle, resting on the costa, is a 



