REVISION OF SPECIES OV THE GENUS AGROTIS. 17 



I fijid it impossible to accei>t. lie inakos rarix, rariaia^ and altcrnata 

 foruis of phyUophora^ altliough the latter is stru(;tiiially distinct f'roni 

 the others and referable to a dittercnt genus. Mr. Butler's paper m 

 Trans. ICnt. Soc, Lond,, 1881), Pt. ill, ])roves that he hna coini)letely 

 missed tlie true basis of generic distinction in this grouj), and his asso- 

 ciations of species are thoroughly superticial and structurally unwar- 

 ranted. 



SYNOI'SIS or TUF. SPKCIKS. 



Thorax untultcd or witli but a feeble basal tuft. 

 Head and collar discolorons, brown or black. 



Thorax and primaries deep carneons gray, collar black kukitkctus. 



Thorax and primaries yellowish, head ferruginous hijunnkicoi.lis. 



Head and collar concolorous, costa not discolorons, paler. 

 Primaries narrow, snbc(iual. 

 Primaries elongate. 



Color reddish brown, transverse lines single miximalis. 



Color from clay yellow to red brown; transverse lines geminate; a dark 



costal patch at inception of s. t. line Curii>A. 



Primaries shorter, color varying from dirty yellow to bright red brown or dark 

 gray ; terminal space usually pale gray or bluish, rarely concolorous, - 



TLACIDA. 



Primaries evidently wider, trigonate. 



Color dark brownish red to pale drab or olive gray, terminal space contrast- 

 ing bluish gray, transverse lines indistinct powdered with gray, ordi- 

 nary spots faintly outlined vauiata. 



Color clay yellow with paler contrasting terminal space, transverse lines aiul 



spots very distinct; s. t. line sinuate, uneven ai.tkkxata. 



Color varies from clay yellow to bright red, terminal space not contrasting, 



transverse lines faint; s. t. line more even CUPidissima. 



Collar discolorons, primaries with costa broadly pallid. 



Thorax ferruginous, outer margin of primaries bluish gray. ..iumargixaus. 



Thorax sepia-brown, primari(>s evenly concolorous viTTli'UONS. 



Thorax with distinct anterior and i>osterior tufts, 



Kcniform concolorous, outlined with pale scales ixelkgans. 



Reniform large contrasting pale yellowish mihabilis. 



Rhynchagrotis rufipectus Morr. 



1874 Morr., Proc. Bost. Soc, N. H., 17, 1G5, Agrotis. 

 1876 Grt., Ann. Lye. Nat. Hist. N. Y., xi, :i04, Agrotis. 



Thorax and primaries of varying slnnles of bluish gray, somewhat 

 irrorate with brown scales, collar and head dark red brown, the fornier 

 tipped with gray; transverse lines geminate narrow, black, often ob- 

 solete; t. a. line forming three distinct outward curves or scallops; t. 

 p. line slightly crenulated, with a regular outward curve over the cell; 

 s. t. space darkening gradually to the distinct black s. t. line. Ordinary 

 spots faintly outlined by brown scales, reniform with a dark filling; at 

 lower portion a faint brown median shade is traceable. Benearii, the 

 ornamentation is that common to the entire group; primaries with 

 costal and outer margin irrorate with purplish scales, else blackish ; 

 23(;4r)— Bull. ;58 li 



