REMARKS ON THE SPECIES OF THE GENUS NEPTICULA. 49 



all these species the cell is wanting. Sometimes the sub- 

 costal vein forks again soon after the first fork, emitting a 

 second branch to the costa, which corresponds to the anterior 

 branch of the sub-dorsal vein in the more complicated form, 

 fiom the place where it intersects the posterior branch of the 

 sub-costal vein, and then proceeds to the costa. Or in other 

 words, in the more simple form the sub-dorsal vein and its 

 posterior branch is entirely wanting, and the anterior branch 

 is wanting from the fork to the point of intersection of the 

 two intersecting branches of the two veins. Finally, in the 

 more simple form there is also wanting one of the last thi'ee 

 branches of the sub-costal vein which terminate near the 

 apex of the wing. The latter is consequently represented as 

 a vein, which first runs parallel to the costa, then turns 

 sharply towards the inner margin, and at the same time sends 

 two parallel branches to the costa ; and lastly is again forked 

 before the apex of the wing, emitting two branches towards 

 it. In all the three forms the costal vein is very short and fine, 

 and terminates in the costa near tlie base, often hardly dis- 

 tinct ; the dorsal vein is not furcate towards the base, and 

 not double. What Herrich-SchafFer calls " Rippe 1 b," and 

 Zeller and Frey call the fine upper vein of the fork, is the 

 delicate fold of the wing, which approaches the dorsal vein 

 in the middle and unites with it, but sometimes it remains 

 perceptibly distinct. 



The posterior v.ings have only one medial vein, which 

 forks sooner or later and runs with the two forks to the 

 margins or towards the apex of the wing, besides there is one 

 costal and two dorsal veins. 



To the desci'iptions of new species I have also added the 

 detailed characters of such species as have either not been de- 

 scribed at all, or only insufficiently described in German 

 works. The species described are arranged according to 



1863. E 



