230 



Valvae ; our own investigations on this form (of which we have made 

 five or six slides) have shown that it so closely resembles both Euro- 

 pean truncata and that found in the Eastern States as to be inseparable 

 on genitalia alone. We figure (PL XXI, Fig. 6) the form ochro- 

 fuscaria Swett, expressing the hope that that portion of the description 

 which states 'a large reddish brown costal spot at the anal angle may 

 be laid to the door of the printer rather than the author; Mr. Swett 

 compares this form to rufibrunnea Warren of which we know noth- 

 ing ; it would seem to us to be a further development of the form cen- 

 tumnotata Schulze of truncata as figured in Seitz Pal. Macrolep. IV, 

 PL 8k and we are surprised that this resemblance did not lead Mr. 

 Swett at the time to suspect the presence of truncata in this country ; 

 apparently Mr. Swett has laid too great stress on the sharp angulation 

 of the postmedian line on underside of secondaries as a distinguishing 

 feature between truncata and citrata; as a matter of fact all our N. 

 American forms or races of truncata show a rather sharper angulation 

 than is usual in the European species but as they also show the irregu- 

 larity in outline of this same line opposite the cell and the tendency to 

 form whitish subterminal spots on the upper side beyond this line — as 

 may be seen by a reference to our figures — their affinity to truncata 

 (apart from genitalia) is to our mind clearly shown. 



X. ferrugata infumata var. nov. (PL XIX, Figs. 7, 8). 



A series of specimens taken by Dr. McDunnough at Crater Lake, 

 Oregon (July 16-23) on moist hillsides a little below the rim of the 

 lake differs considerably from Eastern specimens of ferrugata (Ottawa, 

 Ont. ; New Brighton, Pa.) (PL XIX, Fig. 9) ; in size they are con- 

 siderably larger and are also much duller in coloration due to a general 

 smoky suffusion which causes the dull purplish median band to stand 

 out much less prominently than in typical ferrugata or its form 

 unidentaria; the two black subapical spots are also less distinct and 

 tend to suffuse into each other forming a single, diffuse, smoky patch ; 

 the secondaries are dark with the numerous cross-lines well defined. 

 For this race, which is probably confined to the higher altitudes of the 

 Sierras, we propose the above name and have marked as Types and 

 Paratypes 2 $ ,2 9 , in Coll. Barnes. 



Spargania illustrata sp. nov. (PL XX, Figs. 7, 8). 



Primaries dull olive green, more or less unicolorous from base of wing 

 to post median line, this area crossed by six equidistant, faint, dark lines, wavy 



