292 



PSYCHE. 



[July, 1892. 



lined, nearly continuously, with orange 

 scales. It starts on the costa, about 4mm. 

 from apex, runs slightly obliquely inwards to 

 vein 5, then curves sharply outward and 

 turns, running parallel to external margin 

 to its junction with the internal margin, 

 where it becomes obscure. It is outwardly 

 produced on veins 3 and 4. In the other 

 specimen, this line lacks most of the orange 

 scales, and is very obscure, its course being 

 hardly discernible. Terminal intervenular 

 spots very slight, consisting of four or five 



very small black scales, not contiguous. 



Hind wings white, without silvery luster, 

 the intervenular spots larger than on fore 

 wings, smoky black. Below, the wings are 

 white; terminal dots repeated, enlarged. 



Expanse 46 mm. Two $ ? , El Paso, 

 Texas. 



Kindly presented to me by Prof. J. J. 

 Rivers of the University of California. 



I have drawn up the following table to 

 separate the species of Cerura : — 



§ 1. Primaries crossed by about eight angularly undulate black lines. 

 Secondaries black — multiscrifita Riley. 

 Secondaries white. 



Lines continuous — scitiscrifta Walker. 

 Lines broken — var. Candida Lintner. 

 § 2. Primaries crossed at basal third by abroad gray band, which may be broken or diffuse 

 or even entirely obsolete. 



Primaries dark cinereous — cinerea Walker. 

 Primaries pale cinereous. 



A row of dots in median space — var. cinereoides Dyar. 

 Three dentate lines in median space. 



Band with defined edges and a few orange scales — occidentalis Lintner. 

 Band of uniform tint, and without orange scales — modesta Hudson. 

 Primaries white. 



Transverse band indistinct, though perhaps broken. 



Six black spots in an ellipse on disk — borealis Boisduval. 

 Indistinct dentate lines on disk. 



Band broad — scolofendrina Boisduval. 

 Band narrow or broken — albicoma Strecker. 

 Transverse band faint or obsolete, rarely distinct. 



Black markings much reduced, often largely absent, but not diffuse. 

 Transverse band faint or absent — paradoxa Behr. 

 Transverse band distinct — var. flacida Dyar. 

 Black markings very diffuse, irrorate, size large — meridionalis Dyar. 



Personal notes : — American entomolo- 

 gists will be pleased to hear that the mathe- 

 matical physical faculty of Heidelberg 

 University has conferred the degree of 

 Doctor philosophiae naturalis (honoris 

 causa) upon Baron Charles Robert von 

 Osten Sacken. 



Prof. C H. Tyler Townsend of the New 

 Mexico College of Agriculture at Las Cruces, 

 has started on a field trip by wagon from 

 there to the Grand Canon of the Colorado, 

 via Flagstaff. Prof. Wooton, of the same 

 College, and two students accompany him 

 and they expect to be away two months. 



