Teneina of the United States. 229 



with that of P. robiniella, in more than one or two particulars, e. g., 

 the Avhite tips of the antennse, in which it resembles G. mirabilis. If 

 Prof. Frey had understood Dr. Clemens' clear, and acurate description 

 of P. robiniella, he never could have made the mistake of confound- 

 ing it with L. gemmea, even doubtfully, and had I not been misled by 

 that identification, I should have detected the difference much sooner. 

 Prof. Frey was probably led into the mistake, not by the resemblance 

 of the insects, but by the supposed fact that L. gemmea, came from 

 locust leaves from which he already had L. robiniella, and L. 

 ornatdla and the only other lepidopterous mine known was " the digitate 

 mine of the upper surface," which is inhabited as is well known by 

 the larva of P. robiniella. Some specimens of L. ornatella, are much 

 less dark at the base of the wing than others, some are brighter, some 

 darker golden, and sometimes the second fascia is found slightly in- 

 terupted in the middle ; but of the hundreds that I have seen, none 

 had the tips of the antennae white, and but for this I should consider 

 L. gemmea as being much nearer to L. ornatella than to P. robiniella. 

 P. robiniella is decidedly larger than L. ornatella. In addition to the 

 reasons that I have elsewhere given for placing P. robiniella in Gra- 

 cilaria is the position of the insect in repose. 



IMhocolletis quercitorum — (Frey) . 



Li the former paper I referred this to L. FlteheUa, Clem. There 

 seem minute differences between Fitchella and quercitorum as described 

 by Frey. If not the same, they are very nearly so ; an inspection of 

 authentic specimens of each would determine. Besides Fitchella there 

 is no other known American species which has the large dorsal white 

 spot on the forewings as described in quercUxn'um. 



L. longedriata — (Feey). 



Identified doubtfully by Frey with L. argentifiynhriella is no doubt 

 that species. Dr. Clemens states that the antennse are anulate with 

 dark fuscus, but the annulations are very indistinct in all my speci- 

 mens. Neither Dr. Clemens, nor Prof. Frey, mention that the apical 

 joint of the antennae is fuscus, but it is so. 



L. alinella (f) — (Frey). 



Prof. Frey, supposes that it came from alder leaves, because it so 

 nearly resembles the European species. But that is by no means a 

 necessary conclusion. No alder leaf miner has yet been found in 

 this country. But that does not prove that none exist. 



