REVISION OF SrECIES OF THE GENUS AGKOTIS. 9!) 



bein{^ proportionately liitlior shorter, and inore tri<;ouate. The $ };eiii- 

 talia of the groiii) are all of the same tyi)e, and are de(;idedly nniqne. 

 The harpes are narrow, short, tapering towards tip, which isobliqnely 

 rounded. The clasper has a lon^', very stout, somewhat llattened and 

 straight interior fork, which is also often somewhat cnlar.ned at tip. 

 From the superior margin proceeds a stout, very strongly curved claw, 

 of variable length and shape. This type is common to all species of the 

 group, and is found nowhere else in the genus. 



The species are closely allied and care is requisite in sei)arating them. 



AnxUiaris, the type of the group is also the best marked of the 

 species; the costa, inner margin, s. t. space, an apical patch, a sub- 

 median dash, and the inferior half of the collar are bright yellow; and 

 this is distinctive of the species. The c!asi)er of S has the inferior 

 portion long, little enlarged at the tip ; subequal. The superior portion 

 is very short, and curved, the tip subacute. 



IntroJercHH is very closely allied, but is somewhat smaller and the 

 yellow is sordid; the primaries are also somewhat wider. The $ 

 clasper is distinctive; though much shorter than in the preceding, 

 the inferior i)ortion is yet much heavier, the tip enlarged and ex- 

 cavated, spoon-like. The superior portion is much longer, strongly 

 curved, the tip irregtdar. <Sorro>' is known to me in the 9 only; it is 

 much smaller than either of the preceding, and, retaining the same 

 typical ornamentation, replaces yellow bj' bluish gray. 



Agrcstis is again a large species but very evenly colored, gray over 

 luteons or butt"; the transverse lines are distinct, as are also the ordi- 

 nary spots; the reniforni is inferiorly dusky. The clasper has the in- 

 ferior portion very long, cylindrical, slightly tapering to the tip, which 

 is not at all enlarged, and while not acute or i)ointcd is yet the smallest 

 l)oint of the i)rocess. The superior portion is very short, curved, and 

 rather acutely terminated. 



Inconcinna, with the same maculation so far as it is traceable, is more 

 reddish brown, more evenly colored and decidedly smaller. The clasper 

 has the inferior portion moderate in length and slightly and evenly 

 dilated before tip. The superior portion is also moderately long, 

 greatly curved, the tip obtuse. 



Tcr)X'(ilis is very distinct in coloration, as has been already noted. 

 The clasper is very nearly like that oi inconcinna, but the forks are not 

 at all enlarged toward or at tip. 



srxorsis of speciks. 



Abilonu'ii (listiuctly depressed ; colors fuscous to f^r.iy. 



Costa, iiitonial margin, s. t. space, siilj-iiiedian dash and collar liriglit yellow ; size 



lar<!;o auxii.i.mms. 



The same portions sordid, Inteous; size stnallcr intkofekkns. 



The same portions bluish jjray ; size still smaller j^okuok. 



Primaries uniform in jjround color. 



Transverse lines and ordinary spots distinct; claviform present, size larfje. 



AGRKSTIS, 



