REVISION OF SPECIKS OF THE GENUS AGROTIS. 105 



normally wide, the apices rectangular. The i genitalia are variable, 

 agreeing only in that the clasi)er is always simple, not more than half 

 the length of the liarpes; the latter oblicpiely rounded at tip and in- 

 wardly furnished with a row of short spines. The maeulation of jiri- 

 maries agrees in the somewhat strigose character, more or less obseuring 

 the ordinary spots, and in the somewhat paler costa, apicaUs furnishing 

 the only e.vcei)tion to the latter character. The thorax is fui iiishcd witii 

 evident, though not conspicuous, fore and aft tufts. 



The species are few, and they are readily distinguished. Prodi ris is 

 largest, and is separable at once by the unusually wide juiiuaries, which 

 are also very dark in color; the orbicular is round. Tiic S genitalia 

 are distinctive. The clasper has a very short, acute, inferior i)rojection, 

 the sui)erior hook being moderately long, not greatly curved, and moder- 

 ately eidarged at tip. The harpes are broadly roun<led at a[)ex. 



AecUvis is similar but smaller, somewhat paler, the maeulation much 

 more distinct, the orbicular is longitudinal, elongate, narrow. The S 

 genitalia are very peculiar. The harpes are much as in procHvis, but 

 the clasper is much curved, somewhat llattened, dilated at tip, the dila- 

 tion concave at inner side, and the whole looking for all the world like 

 a dilapidated soup ladle. 



Albicosta is uniibrmly dark in color, the black cell, and i)ale costa, and 

 ordinary spots only relieving tl)e uniformity; the orbicular is round. 

 The <5 genitalia have little in common with the preceding species, but 

 resemble fcnnica in another group. The harpes are long, the tip 

 obli(iue, with the upper angle acute or drawn-out. Clasper short, stout, 

 dilated at middle, and with a short beak-like twist at tip. 



Apicalis is an unicpie and easily distinguished species, uniform in 

 color, the veins a little darker, transverse lines distinct, unusually close 

 together, and the ordinary spots indistinct. The chief distinctive 

 feature, however, is a bbickish shade extending from reniform to ai)ex, 

 giving the species the characteristic appearance to which it owes its 

 name. The clasper is sim[)le, tapering to the tip and tolerably well 

 curved. 



SYNOPSIS OK SPECIKS. 



I'riniarieH unusually wide; color v<ry dark; orbicular rouudcfl, willi a (oiitral 



(lot pi;()ti.i\is. 



Priinarii'S narrower. 



Orbicular olon<i;ato, more or less absorbed in tlie broadly pale cost.i aicmvis. 



Orbicular rounded; costal Hpace pallid; cell before and between ordinary spots 



black; color else dark albicosta. 



Ordinary spots indi'tinite ; color evenly pale, veins only marked ; a distinct broad 

 dark sliade from n^niforiu to apex a"ICAlis. 



Rhizagrotis proclivis Smith. 

 1887. Smith, Proc. V. S. Nat. Miis., x, 4.".:^, A,jrot\s. 

 Very dark, smoky brown, or blackish; costal region broadly tinged 

 with red brown ; a reddish suffusion accompanying also the t. p. and s. t. 

 line. T. a. line indistinct, nearly uprigiit to vein 1, then with a wide 



