16 BULLETIN 48, UNITED STATES NATIONAL MUSEUM. 



sliiuiiig, almost greasy appeaiaiice. The palpi are long, closely scaled, 

 iipcurved, and sickle shaped, considerably exceeding the vertex, aud 

 the terminal Joint is nearly as long as the second and acutely termi- 

 nated. The tarsal claws, so far as examined, are simple. To this 

 series Mr. Grote has applied the term Fseudiujlosm^ and it contains 

 four species. 



E. Ii(ht icalis is a smoky, blackish brown siiecies, in which the trans- 

 \ crse lines are obscurely pale and broken, and the darker accompany- 

 ing lines only faintly traceable. It varies verj^ decidedly in size and 

 to some extent in wing form; but it has a characteristic ap])earanre 

 diflicnltto mistake. Sometimes pa' pecimens occur, and in these the 

 dark transverse lines are evident, l e pale lines being more or le,>s 

 completely merged into the ground. 



U. denticulalis is closely allied, with almost exactly the same mark- 

 ings; but it is of a dull, pale luteous ground color, powdered with 

 brown scales, and the transverse lines are blackish. From pale forms 

 of the preceding it is distinguished by having the space between the 

 median and transverse posterior line dark tilled toward the inner 

 margin, which gives the wing a quite characteristic appearance. 



E. rottmclalis is a niuch smaller species than either of the preceding, 

 and is, indeed, the smallest in the genus. The primaries are usually 

 an almost uniform smoky brown, the markings being barely percet)t- 

 ible in local varieties oidy and the secondaries are almost as free from 

 macnlation, though much paler. The species is not easily mistaken. 



E. fico1n<(Hs is not much larger than the last preceding; but the 

 ground color is almost black, and lacks j^'most completely the gji._jt: 

 ing appearance, while the transverse li'.es are (juite distinctly white, 

 narrow, and broken, in sharp contras the others. 



Intermediate between the above series and that next following is 

 E, lanrentii, described by me. In appearance it belongs at first sight 

 with the following, having a powdery vestiture without gloss; but the 

 palpi are quite decidedly like those of E. scobiaiis, and it resembles 

 that species in the dark color of the primaries and the imirow distinct 

 median lines. Tlie secondaries are pale, however, and distinctly 

 marked by transverse lines. E. .scobiaiis and E. laurentii further agree 

 in having the -jibdomen black witli narrow white rings margining the 

 segments. The tarsal claws are toothed, resembling the following 

 series. 



The second seiies to which reference has been made ditfers in the 

 rougher vestiture without any trace of sheen or glisten, aud on the 

 contrary a tendency to the ])owdery appeal ance marked in E. taiiwnfii. 

 The palpi are more robust and are not nearly so long, reaching to the 

 vertex or slightly exceeding it, excei)t in E. ))i<(Jor((li.s, in which we have 

 a tendency to the preceding series, though the terminal joint is not so 

 acutely terminated. In this series the tarsal claws are toothed, and 

 three species are referable to it. 



