NO. 1283 REVISION OF SOME NOCTUID MOTHS— SMITH. 205 



The .sexual tufting.s are as in the preceding species, l)ut all very 

 much exaoo-e rated. The middle tibia is somewhat abbreviated and the 

 tufting's when expanded form an almost complete circle. The posterior 

 femur and tibia have each a tuft at base, in the former extending 

 beyond, in the latter to the middle of the respective parts. 



This species seems to have a wider distribution, extending from 

 Colorado into Arizona and New Mexico. 



Citronella is decidedly smaller than the preceding two species. 

 The primaries are pale luteous, with a vague smok}^ tinge, and the 

 secondaries are decidedh' smoky in both sexes. The primaries have 

 the costal edge white, and in all of them the smoky shade along the 

 median vein and extending nearly to the outer margin is well marked; 

 l)ut the white along the median vein itself may be entirely wanting. 

 The transverse posterior line is punctiform, complete, and well marked 

 in all the specimens. The sexual characters are in essentials like those 

 of hieolorata^ but not nearly so prominent. All the examples are 

 from Colorado. 



The three species above defined are closely allied, but, I think, 

 really distinct. With a good series, such as 1 have had under exam- 

 ination, the ditferences become clear, and with any good .specimens 

 under examination there should be no difficult}' in placing even single 

 examples. 



Pati'tcid is entirc>ly diti'erent. The primaries are vevy pale creanw 

 yellow or almost Avhite, with an obvious smoky or blackish .streak 

 through the middle from base to the outer margin. The secondaries 

 are smoky white, and as a whole the species looks white. It is about 

 the size of cifr<>ii<ll(i^ but looks smallei' and reall}^ is slighter. The 

 sexual tuftings in the iiiah^ are so reduced as to be .scarcely noticeable 

 excej)t on close inspection. The s])ecies occurs in Colorado and New 

 Mexico. 



/'/vrv/v/r/V/.s- belongs here Avithout nuich doubt. Mr. Grote .says 

 that it is a very slight species, yellow white and absolutely immacu- 

 late. 1 have not seen it. The type is from Idaho. 



In tabular form the species known to me may be arranged as follows: 



rrimarii's icddisli liitt'otis, with a punctiform transverse posterior line; secondaries 

 whitisli nr .^luoky nircicoMn. 



Primaries liirlit y.'iiow, immaculate; secondaries reddish hicolornUi. 



Primaries ii<,dit yellow, with a punctiform transverse posterior line; secondaries 

 white or smoky, size smaller cllroiirlhi. 



Primaries pale cTeamy, with a central smoky stripe; secondaries smoky wiiite, size 

 small jxilricid. 



Primaries yellow white, al)so]utely immaculate; very slight pntgrcfcilix. 



NELEUCANIA NIVEICOSTA, new species. 



Ground color I'eddish luteous, verging to brick red. Head and 

 collar darker, more red-brown. Thoracic disc of the ground coloi'. 



