REMARKS ON THE SPECIES OF THE GENUS NEPTICULA. 47 



A glance at this arrangement shows, that the above-named 

 cilial-marking ahriost entirely appertains to the coarsely- 

 scaled species ; only with the exception that 3Ialella, Frey- 

 ella and Tityrella (the former and latter of which were cor- 

 rectly referred by Frey to the finely-scaled species) have also 

 a distinct divisional line. But that the character of coarsely 

 or finely scaled is not always a perfectly certain one, follows 

 from this, that Herrich-SchafFer and Frey include Turicella 

 among the coarsely-scaled species, and the first named 

 writer also includes Argentipedella and Basalellcif and Frey 

 on the other hand has placed Arcuatella amongst the finely- 

 scaled species. The character of the cilial-markings, on the 

 contrary, separates the species sharply, and places the former 

 species, without any doubt, in the right groups. 



I have examined the venation in more than twenty species, 

 and have, on the whole, confirmed the statements of Herrich- 

 Schafier, as also those of Zeller and Frey ; those of the two 

 latter with this restriction, that Zeller had before him the 

 more complicated, Frey the more simple form. As already 

 noticed by Hei-rich-S chaffer, there are two forms in the 

 anterior wings, of which, however, one may easily be derived 

 from the other, and, moreover, they are connected by an 

 intermediate form. In the more complicated form the sub- 

 costal and sub-dorsal veins are present ; both are forked be- 

 tween one-third and one-fourth of the length of the winsf, 

 and the anterior branch of the sub-dorsal vein, and the pos- 

 terior branch of the sub-costal vein, intersect soon afterwards, 

 and the latter runs into the costa parallel to the anterior 

 branch of the sub-costal vein; on the other hand the posterior 

 branch of the sub-costal vein, as it turns first towards the 

 inner margin, and then towards the costa, runs into the last 

 named, after first emitting a branch to the inner margin, and 

 then parallel to this a branch to the apex, or to the casta 



