Tincina of the Central United States, 111 



T. CastayieceeUa (n. sp.) 



Face and palpi whitish j^ellow ; vertex yellowish white. Thorax 

 and primaries pale saffron, almost golden yellow, without markings, 

 but becoming darker and more reddish toward the apex of the wings, 

 where they are dusted sparsely with brownish red or rather with dark 

 brick red. Cilia; of the general hue ; abdomen be\ieath densely dusted 

 with brownish yellow. 



This is the largest Tischena that I have met with, measuring nearly 

 one third inch in al ex. The larva mines the leaves of the chestnut 

 (Cadanea americana). 



The oak-feeding Tischeria of this country form a very difficuilt group. 

 Tlie three species described by Dr. Clemens are stated to have been 

 bred from oak leaves, but Dr. Clemens does not say what kind of oak 

 leaves. T. badiiella, Cham. , and T. querdvorella, Cham. , were bred from 

 Qiiercm alba, Q. nigra, and Q. obtusUoba. They are the only species 

 known to me which might be mistaken for either of Dr. Clemens' three 

 oak-feeding species ; for, while considering Dr. Clemens' description of 

 the imago alone, T. tinctonella, Cham., might possibly be mistaken for 

 one of them, the character of the mine separates it distinctly from them 

 all, and T. fimomarrjineUa, Cham., is widely enough separated by the 

 brownish margins of the primaries, and by the character of the mine, 

 the edge of the leaf being curled downward, although it is found in the 

 leaves of Q. alba. T. tnidoriella mines leaves of Q. tindmna. In a 

 publication by Prof. Frey, of Zurich, and M. J. Boll, of Baumgarten, 

 two species are mentioned which were bred from leaves of Q. tindoria, 

 gathered by Mr. Boll in this country, and which Messrs. Boll and Frey 

 suppose to be T. zellerleUa, Clem., and T. quereitella, Clem. But T. 

 tindoriella is the only species that I have ever bred from Q. tindoria, 

 and the mine separates it very distinctly from the other species ; it 

 does not curl the leaf at all, and is at first sight much more likely to be 

 mistaken for the mine of a LUhocolletis larva of the flat group than for 

 that of a Tischeria. T. cadanea^ella might possibly be mistaken for 

 zelleriella, but for its large size. 



T. malifoliella, Clem. 



In vol. iii., p. 208, of the Canadian Entomologist, I have 

 recorded the breeding of this species from the leaves of various 

 plants, and suggested that it probably mined other Rosam ; since 

 then I have also bred it from the dewberry (Rvbm canadensis),. 



