THE CANADIAN ENTOMOLOGIST. 13 



incline to think that the maturity of the imago at the time of its death 

 has something to do with the color of the hind wings, specimens killed 

 very soon after emergence having them more slaty or lead colored than 

 older ones. 



argiope, gen. 1IOV. 



A. dorsimaculella. 



Hcribeia ? incertella ante p. 44. Vol. 4. 



In my former notice of this species I placed it, provisionally and with 

 great doubt, in Stephens' genus Heribeia. I find, however, that either 

 Heribeia Stephens is very different from the Heribeia of more modern Eng- 

 lish authors (which includes such small genera as P/ii/oenistis, Lyonetia, &c.,) 

 or I have mistaken the characters of Stephens' genus from his brief 

 diagnosis. I had supposed it (from the characters given by Stephens and 

 its location among his genera) to be allied closely to Yponomeuta. At any 

 rate, as I cannot satisfactorily locate this species in any genus known to 

 me, I think it best to erect a new one for it with the diagnosis given at 

 p. M—Vol. 4. 



It differs from Yponomeuta in the colors and patterns of coloration ; 

 in having the terminal joint of the labial palpi a little larger in proportion 

 to the others ; in having the head entirely smooth ; in having the primaries 

 a little falcate beneath the apex, though the neuration is not materially 

 different ; in having the costal margin of the secondaries a little excised 

 before the tip, which is pointed, and in having only a single branch (the 

 superior furcate one) given off from the discal vein (while Yponomeuta has 

 an inferior simple branch also), and in having the median furcate from the 

 end of the cell, whilst in Yponomeuta it is simple. 



GRACILLARIA. 



G. blandella ? Clem. Proc. Ent. Soc. P/ii/a., 1863, p. p. 



Although Dr. Clemens' description is not strictly accurate, or rather, is 

 not altogether intelligible, where applied to the insects now before me i 

 and I have not seen his specimens, yet notwithstanding the close resem- 

 blance which sometimes exists between different species of this genus, I 

 have very little doubt that my specimens belong to this species. Should 

 it, however, prove otherwise, then I suggest for these specimens the name 

 G. jugla?idivorella and annex the following description : 



