^^ISM)"'] PROCEEDINGS OF THE NATIONAL MUSEUM. 417 



The reference of oontenta Wlk. to this species can not be accepted as 

 final, since Mr. Grote has more recently referred it to devastatrix as a 

 synonym of that species. 



Group finitima. 



The distinguishing feature of this group is found in the obsolescence 

 of the s. t. line, the distinctly defined usually darker median space, and 

 single or obsoletely geminate median lines. The ordinary spots are 

 distinct in all the species, though not always well defined. The terminal 

 space is either concolorous or only slightly darker, and the s. t. space 

 contains no prominent spots or shades, the darkening toward costa ex- 

 cepted. 



Tn^o of the species are very rare; one thus far known only in the 9 

 sex, and only one specimen at that; the other known in both sexes, but 

 only single specimens of each. 



Exornata is a rusty or somewhat paler red -brown species, with dark 

 powderings, distinct single median lines and somewhat indefinite ordi- 

 nary spots. The $ genitalia are of the usual type, the clasper stout, and 

 reaching to the end of tip. The $ type is from Labrador; the only 9 seen, 

 from Colorado. 



Rulstii is a very strongly marked species. The color is rather pale, 

 clear luteous, the superior part of median space dark red brown, the 

 large reniform paler and contrasting. The 9 only is known. 



Finitima, which I believe is only a local variety of the European 

 hasilinea, differs from both the preceding by the distinct black basal 

 streak, and the black-ringed ordinary spots. The median space is red- 

 dish brown, the remainder of wing a somewhat livid or violet gray. 

 The genitalia of the $ are like those of exornata, but the clasper is still 

 thicker, and there is a dense clothing of small spinules along inner mar- 

 gin to the superior angle. Speyer has pointed out the only observable 

 differences between the European and American forms of this species^ 

 which simply amount to a somewhat clearer, more definitely cut, orna- 

 mentation of the American race. The tuftings in this species are well 

 marked, as they are also in exornata. The 9 Rulstii is somewhat imper- 

 fect, but in this species also they will probably be found moderately 

 prominent. 



In synoptic form the differences appear thus: 



No basal black streak. 



Color of median spaceeven. Rustyorred brown with darker powderings.. exornata 

 Median space much darker superiorly, the reniform pale and contrasting 



ground color pale clear luteous hulstii 



A distinct black basal streak, ground color livid, somewhat violet gray, 



median space darker, the maculation distinct finitima 



Proc. N. M. 90 27 



