44 JOHN B. SMITH. 



an aunulns; the centre pale powdered. Secondaries dii-ty white, powdery, with 

 a clearer outer border, a dusky terminal line and a vague extra median line and 

 discal dot. Beneath whitish, powdery, disc of primaries darker; a more or less 

 obvious outer line and discal lunule. Expands 50 ( '^ ) to 53 ( 9 ) mm. ; 2-2.12 in. 



^a6._Colorado, Bruce (No. 231 and 462) ; Salt Lake City, Utah, 

 Hy. Edwards. 



Two specimens ( 9 ) from Mr. Bruce are before me, one of them 

 marked "9, 2, 88," the other without date. In the Hy. Edwards 

 collection there are also two specimens, which I have compared with 

 them but not labeled. 



The species while it has the facies ,and style of niaculation of as- 

 tricta and occulta is obviously distinct by its dark color and powdery 

 markings. In the male before me the ocherous powderings predomi- 

 nate over white, while in the female the reverse is the case. 



The picture is from the female. 



PROSfOCTIIA n. gen. 



Head distinct, eyes lai'ge, front smooth, palpi moderate, the second 

 joint clubbed at t.p, terminal joint small ; tongue stout and long. 

 Antennae in the male simple. Thorax moderate, hardly depressed, 

 but not strongly convex ; untufted, or with very inconspicuous tufts 

 merely. Abdomen moderate, in the female somewhat depressed, 

 untufted ; middle and posterior tibi?e spinose, anterior unarmed. 

 The legs as a whole are stout, greatly lengthening posteriorly. Wings 

 large, primaries trigonate, with rectangular apices ; secondaries with 

 a slight cut below the apex. 



Resembles Noctna most closely in habitus and in structural char- 

 acters, but differs in having the anterior tibiae unarmed, and also in 

 having the slight cut below apex of the secondaries. In the table 

 of genera in my revision of the Agrotids, this genus would be asso- 

 ciated with Adelphagi-otis and Euretagrotis, differing from all of them 

 by the depressed appearance, and by the untufted thorax. The 

 genus is described for a species which has been in my hands for some 

 time, and it will also receive Agrotis pyrophiloides, which, I have 

 already stated, agreed with none of the genera accepted by me as 

 belonging to the typical Agrotids. The latter species differs some- 

 what from the new form in that the thorax is less depressed, and the 

 vestiture forms indefinite tuftings, but otherwise the two are suffi- 

 ciently allied. 



