96 .Notes on North American Lepidoptera. 



tween the two pair of spurs on the hind tibiae ; isolated 

 spines sometimes occur in these positions in genera which 

 do not have spinose tibiae, as has been noticed by European 

 entomologists. 



Mamestra adjuncta, Boisd. (Miselia). 



Hadena adjuncta, Grote, Bull. Buff. Soc. Nat. Sc, Vol. I, p. 108 (1873). 



This species, considering its strong generic characters, has 

 suffered many changes of position ; described by Dr. Bois- 

 duval under Miselia and thought by him to be a European 

 species, it was shortly afterwards correctly referred by M. 

 Guenee, in the "Species General," Vol. 5, p. 199, to the 

 side of the well known Mamestra brassicce, Linn. Mr. 

 Grote places it in Hadena; why, we do not know, as the 

 eyes are distinctly hairy. 



Mamestra curta, nov. sp. 



Expanse 30 mm . Length of body 15 mm . Eyes hairy. Anterior tibiae 

 unarmed. Collar, front and palpi as usual in this genus. A low protho- 

 racic tuft. Abdorneu smooth, yellowish and untufted, slightly exceeding 

 the posterior wings. Anterior wings gray, with all the markings distinct 

 and well defined ; interior line simple, removed further than usual from 

 the base, strongly lobed between the nervules ; to the largest lobe the 

 distinct, short and truncate claviform spot is attached ; orbicular spot large, 

 black-ringed and concolorous, reuiform spot narrow and upright, crossed 

 by the diffuse blackish median shade, below the spot the latter is lost in 

 the ground color; exterior line of the normal form, black, distinct and 

 dentate, followed by a narrow pale shade line ; subterminal line very 

 prominent, preceded by black shades which partially fill the subterminal 

 space, becoming difluse as they recede from the line, but near it are very 

 intense and contrast with the light terminal space ; a series of black dots 

 at the base of the fringe. Posterior wings yellow, with a discal dot, a 

 narrow median line, and a broad blackish terminal border; the fringe is 

 yellow and contrasting. Beneath, both wings are yellow, with discal dots 

 and traces of median and terminal lines. 



Habitat. Colorado, July 20 and 22. 



This species can at once be separated from the other 

 Mamestrce by the yellow posterior wings. It was collected 

 by Mr. T. L. Mead. 



