340 AMERICAN MICRO-LEPIDOPTERA. 



The description given above is a translation of that by Frey and 

 Boll, and appears to be somewhat inconsistent in several details. 

 While it seems to belong to the flat group of larvae, the internal 

 dark margin of the fascia, if the description is correct, is an 

 anomaly in the group. I have seen no specimen of the species, 

 and it is impossible to determine its position with certainty. It 

 was described from specimens bred from upperside mines on a 

 species of Carya in Texas, and is one of the smaller species. 



Liitliocolletis betltunella Chambers. 



Plate XXIV, Fig. 3. 

 Lithocolletis bethunella Chambers, Can. Ent, iii, 109, 1871. Gin. Quart. Jn. Sci., ii, 



103, 1875. Can. Ent., xi, 89, 1879. bethuniella Dyar, Bull. 52, U. S. 



Nat. Mas., 1902, No. 6326. 

 Syn. lebertella Frey and Boll, Stett. ent. Zeit, xxxix, 266, 1878. Dyar, Bull. 52, 



U. S. Nat. Mus., No. 6327. 



"Face and palpi silvery white; antennae silvery white beneath, brownish 

 banded with white above; tuft golden,. interspersed with white; thorax and 

 anterior wings reddish orange, with three costal and three dorsal silvery streaks, 

 all dark margined externally. First costal and first dorsal small, the dorsal 

 being the largest and nearer to the base, whilst the costal is a little oblique and 

 at about the basal one-third of the wing. The second dorsal and second costal 

 about the middle, opposite each other, and a little oblique, the dorsal being the 

 longest, and almost meeting the costal near the costa, whilst their dark margins 

 do meet and are posteriorly angulated and produced to the space between the 

 third dorsal and third costal. The third dorsal and third costal are a little 

 behind the apical one-third, opposite, straight, and the dorsal is the longest. 

 Apex dusted with blackish on a white ground. Cilia fulvous, with a dark brown 

 hinder marginal line at their base. Al. ex. a little over one-fourth inch." 



The above is Chambers' original description. As noted by Cham- 

 bers, the opposite costal and dorsal streaks (except the first pair) 

 are sometimes confluent, forming fasciae. There is also, just before 

 the apical black dusting, a small white spot, which does not extend 

 through the cilia. Alar expanse 6.5-7.5 mm. 



The larvae, of the flat type, form oval blotch mines on the upper 

 side of several species of oak, and spin flat, oval, silken cocoons. 

 The species occurs in the eastern half of the United States, west and 

 south to Texas. 



The description of lebertella Frey and Boll in no way differs from 

 that of bethunella, and their life history is identical. The synonomy, 

 as above given, will doubtless stand, although there has been no 

 opportunity of comparing specimens of bethunella with the type of 

 lebertella in England. 



