NOETH-AMEEICAN NOCTTJIDiE. 63 



provided with an outer claw and two inner spines ; 

 the joint is also furnished with spinules. In 

 Bhododipsa Voliipia, from Texas and Colorado, the 

 joint wants the spinules ; there is an outer claw and 

 two spines on the inside, followed by a third more 

 slender. The hind and middle tibise are armed ; 

 palpi a little longer and more closely scaled. The 

 wings differ in shape and pattern. The head and 

 thorax are dark yellow ; the fore and hind wings are 

 bright crimson, the median lines x)ropinquitous, 

 irregular, indistinct, yellowish white. Whether this 

 is the species described by Dr. Pitch under the 

 same specific name is doubtful ; but the name need 

 not be changed, unless Fitch's species is different 

 and yet belongs to Rhododipsa, which is unlikely. 



BhododipsaVolupia, Grote, B. U. S. G. S. iii.p. 797 ; id.B. B. E. 

 S. iii. p. 47. 



34. Lygranthoecia Acutilinea. 

 In Lygranthoecia 3Iargiuata, the type of this 

 genus, the eyes are naked. The fore tibicE have, on 

 the outside, four stout blunt spines, in a decreasing 

 series towards the base of the joint; all the tibiae 

 are armed. The group needs re-examination, and 

 some of the numerous species should be separated 

 if possible, i. Acutilinea is a very distinct species, 

 characterized by the raggedly toothed silvery median 

 lines on the ochre-fuscous primaries. The hind 

 wings are white, with diffuse blackish discal spot 

 and terminal band. I am indebted to Mr. E. L. 

 Graef for my type, which came from Colorado. 



Lygranthoecia Acutilinea, Grote, Can. Eut. x. p. 232. 



