THE CANADIAN ENTOMOLOGIST. 363 



In the fossil we find : 



(i) The first Ijand is parallel with the margin, not obh'que, thus 

 differing from the hving forms. 



(2) The second band has tlie uppermost spot shifted even more out 

 of place than in the N. American species ; but the third spot is nearly 

 over the fourth, so liiat the continuity of the band is fairly evident. The 

 whole band, however, is not nearly so oblique as in C. sultana. 



(3) The inner band consists of three spots, the middle large one 

 being quite absent in C. sultana., but present in the N. American species. 



(4) In the recent N. American species the small spot in the middle 

 of the wing looks like part of the innermost band ; it is wholly absent in 

 C. sultana. In C. WilmattcF., however, it is very large, and entirely out of 

 the line of the inner band ; appearing, on any theory of the derivation of 

 the spots from three bands, as an extra and unexplained character. 

 When, however, we turn to such a species as Basilarchia Lorquini, we find 

 this spot coming in quite naturally as part of the great white transverse 

 band ; and the breaking of this band to form the median oblique band is 

 seen in Heterochroa Califorjiica. 



Among the fossil butterflies known from Florissant, Chlorippe 

 Wilmattce is most like Lithopsyche styx, Scudder. I compared it carefully 

 with the type of the latter, in the Museum of Comparative Zoology, and 

 they are evidently not closely allied. The markings cf the Lithopsyche 

 differ in many details. 



THE COLLETID.E OF SOUTHERN M.AINE. 



BY JOHN H. LOVELL, WALDOBORO, MAINE. 



Colletes compactus, Cr. 



1868— Colletes compacta, Cr. ^ ^, Proc. Bost. Soc. Nat. Hist., 

 12:166. 



1879— Colletes compacta, Patton. % $ , Proc. Bost. Soc. Nat. Hist., 

 20:142. 



Female specimens taken on Solidago Sept. 7 to 18, and on Aster 

 puniceus, Sept. 12. This species and C armatus and C. americanus have 

 been collected only late in August or in September. 



No\ ember, 1907 • 



