403 



spot at one-third from base near inner margin, followed by a dash on vein Cu 

 and a patch at base of cleft. Fringes dark brownish gray, slightly darker in 

 cleft; cut by a whitish pencil before apex of first lobe and by three or less, 

 often grayish and inconspicuous, on outer margin of second. Secondaries 

 brownish gray with concolorous fringes. Expanse 15-22 ram. 



Distribution : Atlantic Coast to Cal., south into Mexico. March 

 to Sept. We have no Canadian records, and the most northern locali- 

 ties represented in our series are N. Iowa and Pa. 



The paired dorsal dots on the abdomen and the general grayish 

 color distinguish this common species. The dots are not particularly 

 small, but are set close together and are frequently inconspicuous in 

 dark specimens. Crumpling and shrinking of the abdomen, which un- 

 fortunately is frequent in this family, may render it almost impossible 

 to discern the dots and their position, but we have seen very few speci- 

 mens in which it was impossible to see one pair, at least. 



Inquinatus is very closely related to the two following species, 

 both of which may be mere races or forms. The evidence at our 

 disposal leads us to believe that all are worthy of specific rank, and 

 this opinion is strengthened by certain genitalic diiTerences, slight it 

 is true, but as great as can be expected between closely related species 

 in this genus. These differences are found in the left harpe. This 

 structure is long and slender, and divided by rnore or less sharp curves 

 into three regions, which may be termed basal, median and terminal. 

 In inquinatus the terminal portion is evidently shorter than the median, 

 and the outer band is relatively sharp. The remaining species may be 

 separated from inquinatus on this basis by the following key : 



1. Terminal portion of harpe as long as median 2 



Terminal portion shorter than median inquinatus 



2. Harpe broadly rounded, regions indefinite eros 



Harpe more definitely bent into three portions pan 



All are subject to variation, but the difference as expressed here 

 seems to be constant. 



We have not verified the identification of inquinatus by compar- 

 ison with the types. When we sent species to England we were under 

 the impression that these types were in the Cambridge Museum, but 

 it now seems that they are in the British Museum. Three specimens 

 labelled by Zeller in the Cambridge Museum collection remove all 

 reasonable doubt of the accuracy of our use of the name, however. A 

 fourth specimen, Zeller's van b., may be a pale inquinatus or a dark 



