22 



PROC. ENT. SOC. WASH., VOL. 20, NO. 1, JAN., 1918 



foregoing paper I had occasion to mention the differences in the 

 maxillulae of the larvae of the two species. These are shown in 

 figures 28 and 29 (Plate IV). There is also quite a striking 

 difference in the relative position of the setae on the ventral 

 side of the epicranium. In albella 80-3, SO-2, and 0-2 (Plate 

 IV, fig. 34) are well separated and in a line close to the lateral 

 margin while in smilaciella SO-3 has moved forward until it is 

 on the level of SO-2 (between SO-2 and the hypostomal ridge). 

 0-2 and A -3 have also moved further forward on the head in 

 smilaciella. 



In venation the two species agi'ee in having l-b of forewings 

 furcate at base, but smilaciella has an extra vein (3 of FW) not 

 found in albella, 11 is present and strong and all veins are separate. 

 In albella 6 and 7 are long stalked, the base of 5 is weak, 11 nearly 

 obsolete and the cross vein of the cell between 2 and 7 very weak 

 and obsolete between 7 and 9. While no two species of the old 

 genus Leucoptera (Cemiostoma) have identical venation, the 

 amount of difference which justified the separation of Proleucop- 

 tera from the group should also exclude albella from Proleucoptera. 

 The larval differences offer a very strong argument for their 

 separation. On the other hand if the erection of Proleucoptera 

 was valid we cannot associate albella with the type of Leucoptera 

 (spartifoliella Hubn.). The latter has Ib of the forewings sim- 

 ple at base, 7 is obselete or nearly so, 5 is absent or very weak, 

 and the cross vein of the cell is lost, between 2 and 6 but fairly 

 strong between 6 and 9. 



I am therefore proposing- Paraleucoptera as the name of a new 

 genus for albella Chambers. The European susinella H-S would 

 also go in this genus. 



The complete venation of albella and spartifoliella is shown in 

 the following figures. 



olbc'/a Chambers 



\- 



pTer 



eucoTera 



ifclitjia. 



Dale of Pii!>ll.-nlinii Xc.plcnihcr 27, 1918. 



