V °i889 Xn '] PKOCEEDINGS OF THE NATIONAL MUSEUM. 477 



Grote catalogues it in bis new list, referring pacifica also as a synonym. 

 A careful study of the forms has led to the conviction that not ouly is 

 alia distinct from incerta, and pacifica from alia, but there is also a third 

 species closely related but entirely distinct from alia. This 1 name 

 subtcrminata. It is perhaps more commou th n alia, and is very gener- 

 ally confused with it in collections. 

 The species are separated by the following table: 



Paler species. 



S. t. line consisting of a row of black, lunate spots artiirolita 



S. t. line continuous, preceded by a darker shade. 



Line even pacifica 



Line sinuate alia 



S. t. line followed by a darker shade, median space, with outer portion usually 



darker SUBTERMINATA 



Dark, blackish brown species. 



Terminal space paler, collar concolorous GARMANI 



Terminal space concolorous, collar reddish, pale pr^eses 



All agree in general habitus and the serrate and bristled antennae. 

 Artiirolita is distinguishable at a glance by the peculiar s. t. line. Paci- 

 fica is difficult to separate from a ia on color characters, aud reference 

 is made to the detailed descriptions hereinafter contained. Alia is a 

 powdery form, with the maculatiou rather indistinct, except that the 

 terminal line is well marked and preceded by a darker shade. It is a 

 very constant species. Subterminata is brighter in color, the macula- 

 tion distinct, outer portion of median space darker; s. t. line followed 

 by a darker shade. It is an exceedingly variable species. Garmani 

 and" prwses are allied to Perigrapha; indeed the latter species was de- 

 scribed as belonging to that genus. They differ from all the others in 

 the group by the dark-browu ground color. In Garmani the collar is 

 concolorous, the terminal space discolorous. In Prases the exact re- 

 verse is the case. There is thus no difficulty in distinguishing them. 



Taeniocampa furfurata Grt. 



Pr. Ac. 5, 201, 1874 (Eimella) Can. Ent. 11, 27, 1879 (GrapMphora), New List 1882 

 (Tceniocampa). 



Luteous, powdered with blackish scales. Median lines geminate, 

 blackish. T. a. line arcuate, but slightly dentate. T. p. line often 

 more or less interrupted, outer line often punctiform ; nearly parallel 

 with outer margin. S. t. line concolorous, slightly sinuate, marked by 

 a preceding dusky shade aud the darker s. t. space. Ordinary spots 

 concolorous or somewhat darker, pale ringed. Orbicular rather small, 

 round. Secondaries pale fusco-luteous, lighter toward base. Beneath 

 powdery, with more or less complete outer line, and distinct discal 

 spot. Head aud thorax concolorous. The superior angle of the bend 

 of the harpes is rounded, the tip dilated, inwardly spinulose. The 

 clasper is moderate, not much curved, acutely terminated, rather slen- 

 der. Expands 1 to 1.20 inches (25 to 29 raui ). 



