208 
ANTOCHA Osten Sacken. 
Antocha Osten Sacken, Proc. Acad. Nat. Sc. Philad., 1859, 219. 
To this genus I refer a single species which differs markedly from 
the only recent species known—occurring in eastern North America 
and in Europe—in the character of the preefurca, which is arcuate 
at base and only half as long as the rest of the vein, so that the 
marginal cell is relatively brief. It differs further in minor points, 
such as the normal removal of the discal cell from the apex of the 
wing, the normal base of the first posterior cell, etc., but these are 
of much less importance. If the entire neuration could be deter- 
mined with accuracy I am disposed to believe it would have to be 
separated from Antocha; but the position of the marginal cross 
vein just before the tip of the first longitudinal vein, the gradual 
approach of the first longitudinal vein to the costal margin, and the 
apparent merging of the auxiliary in the first longitudinal vein 
(though this is an obscure point) are so many features in common 
with Antocha that it seems best to place it here at present. The 
shape of the anal angle of the wing cannot be determined. The 
tips of the tibiz are unarmed. 
‘‘Tt is not at all improbable,’’ wrote Osten Sacken more than 
thirty years ago (/. ¢., 200), ‘that my genera Antocha and Dicra- 
noptycha will be found fossil in the Prussian amber.’’ The present 
illustration is almost a fulfilment of this partial prophecy. 
? 
Antocha principialis. 
JS Se ae, 3G 
Represented by a single specimen with rather obscure neuration 
over most of one wing and the whole of the other. The auxiliary 
vein appears to unite with the first longitudinal vein about the 
middle of the wing. The latter runs very gradually into the mar- 
gin, without curving upward toward it, at a point about as far be- 
yond the.origin of the third, as that is beyond the origin of the 
second longitudinal vein. ‘The preefurca arises a little beyond the 
middle of the wing, is at first strongly arcuate, then subparallel to 
the margin, toward which it turns slightly at the marginal cross 
vein, which is opposite the base of the discal cell, a little within 
the tip of the first longitudinal vein, at the inner margin of the 
faint stigma. The submarginal is much longer than the first posterior 
