44 2 ENTOMOLOGICAL NEWS. (Dec., 'l6 



bands on segments 3 and 5 yellow in contrast with the white on 

 the others. 



variety nigra new var. 



Tomentum of abdominal dorsum, venter and patch on pleura entirely 

 l.lack or with narrow basal band on segment 4. Lateral scales of seg- 

 ments 3-6 entirely black or a few white on 4. The usual silvery scales 

 en 7 present. 



Holotype. $ , Beaverkill, Sullivan County, New York, Au- 

 gust 10, 1909, (E. T. Cresson, Jr.), [A. N. S. P. No. 6106]. 



Paratypcs. 2 $ , topotypic. 



I have seen only males of this form. The females probably 

 are not to be differentiated from those of the typical form. 



Villa alternata. 



1823. Anthrax alternata Say, Jour. Acad. Nat. Sci. Phila., iii, 45. 



Say's original description is given here : 



"Body villous, above, beneath and sides cinereous ; tergum fasciate 

 with cinereous. Inhabits the United States. 



Head black ; eyes chestnut ; front beneath the antennae bright cinere- 

 ous ; proboscis concealed in a groove to the tip ; palpi distinct, exterior ; 

 thorax cinereous, tinged with fulvous each side, and at the scutellar 

 suture ; wings dusky, pellucid, nervures blackish-brown ; base of the 

 first transverse nervure brown opaque ; pectus cinereous ; feet blackish ; 

 scutel edged with cinereous ; abdomen each side with dense long hair, 

 which is cinereous on the first and second segments, but on the remain- 

 ing segments alternating with black; tergum with six or seven cinereous 

 lineolar bands ; venter cinereous ; segments particularly the third black 

 at base. Length of body more than eleven-twentieths of an inch. 

 Found in Pennsylvania, and also in Missouri. It belongs to Wiede- 

 inann's fifth tribe." 



This species as I consider it differs from my conception 

 of latcralis mainly in that the lateral margins of all abdominal 

 segments are furnished with long pile, not intermixed with 

 long scales on segments 3-7. Besides this the species is notice- 

 ably more robust in its build, the abdomen being distinctly 

 broader than the thorax. The color of the pale pile is generally 

 white, that of the lateral abdominal margins of segments 1-2 

 being long and especially conspicuous in contrast with the 

 black on the others. 



