1887.] PROCEEDINGS OF UNITED 8TATE8 NATIONAL MU8EUM. o47 



black line from head to tail. Probably this band on the. abdomen soiiio- 

 times breaks up into spots, but none of my si)eeimens sliow this. Feer. 

 ^^eilow, anterior tibia brown outwardly. Primaries white. Costal 

 margins blackish from base nearly to apex. Internal margin blackish 

 from base to hind angle. Outer margin narrowly black margined, 

 leaving apex and a small space above anal angle free. From the anal 

 angle to the costa about two-fifths from apex is a broad oblique blackish 

 baud ; from the middle of this band to the outer margin below the 

 apex runs another blackish band. There are thus three large white 

 patches. The only variation is in the width of the blackish bands and 

 the corresponding size of the white i)atches. Secondaries white. Be- 

 neath white, the maculatiou of primaries faintly reproduced. 



Expands 1.65-1. 75 inches=40-J:4""". 



Habitat. — Canada, New York, and Massachusetts. 



This is a very constant and well-marked species. The oblique baud 

 from hind angle forms with the costal band almost a right angle, and 

 the s})ace beyond this band is never divided into more than two spots. 

 It is really surprising that this distinctive feature has not been hereto- 

 fore pointed out. The side pieces of the male genitalia have the su- 

 perior angle produced into a moderately long, somewhat curved process, 

 with acutely rounded tip, and the inferior angle produced iuto a shorter 

 more pointed process. 



C. suffusa, sji. Dov. 



lecontei t Saund., Syn. Can. Arct., 1863, 28, HyjJercompa ; 1 Cau. Eut., i. 21) (larva); 



Beth , Cau. Ent., I, 45, Callimorplia ; Stretch, Z. & B., 62 et 237, pi. ix, f. 14; 



Strk., Pr.Dav. Ac. Sci. ii, 275; Cauliiekl, Kept. Egt. Soc. Out.. 18.'^6, 38. 

 reversa Stretch, Eut. Am., i, 104 (iu j)art). 



Head yellow; palpi black tipped; antenuic black. Collar yellow, 

 with a small blacliish spot each side of the middle, which is sometimes 

 wanting. Thorax white, pategiie black-margined anteriorly ; a broad 

 blackish dorsal stripe. Abdomen white, with a row of small, dorsal 

 <lark spots, rarely forming a complete line, and often entirely wanting. 

 Beneath, legs yellow, anterior coxoe with a black spot, tibiiie dark out- 

 ■wardly, fore and median tarsi blackish. Primaries white ; a broad 

 brown costal margin nearly to the apex ; a broad brown internal mar- 

 gin from base to anal angle. Outer margin also black margined from 

 apex to near the anal angle. Earely the margins are connected so that 

 the wing is completely dark margined. An oblique dark band from 

 anal angle to costa about two-fifths from base. From the middle of 

 this band runs another, to outer margin below apex. From this, close 

 to its inception, a short band runs to costa ; at its outer third another 

 spur is sent ofl', also to the costa ; forming thus a series of three white 

 spots below costa and beyond the first oblique band, and a larger, 

 somewhat triangular spot uear the outer margin, its broad base near 

 the anal angle. This maculatiou varies in that the dark veins some- 

 times divide the marginal spot into two or three, or, on the contrary, 



