182 THE CANADIAN ENTOMOLOGIST. 



MICRO- LEPIDOPTERA. 



BY V. T. CHAMBERS, COVINGTON, KY 



Continued from Pa.ru 166. 



LITHOCOLLETIS. 



The following species, which have been described by Drs. Clemens, 

 Packard and Fitch, I have not met with. But for the convenience of 

 those who may not have access to the writings of these gentlemen, I con- 

 dense the following account : 



i. L. Arge?itifimbriella Clem, has been already mentioned at p. 57. It 

 mines the under surface of leaves of the Chestnut Oak, and must re- 

 semble L, caryae-albella or L. lucidicostella. At /. 57, ante, it is suggested 

 that L. querci-albella Fitch may be the same insect. Dr. Fitch states that 

 it mines the leaves of the White Oak; and other species of the genus mine 

 both the leaves of the White and Chestnut Oaks indifferently. But Dr. 

 Clemens says that Argentifimbriella makes a tent mine on the under side, 

 has a cylindrical larva, and pupates suspended in a thin web in the mine 

 like L. lucidicostella. Dr. Fitch describes the larva of his querci-albella as 

 being flat, mining the underside (which no known flat LitJwcolletis larva 

 does except L. oruaielta. which makes a flat mine), and as making a tent 

 mine (as I understand Dr. Fitch's description), which no known flat larva 

 of the genus does. He also states that it pupates in an oval cocoon (like 

 that of L. basistrigella, as I understand his description), and no known flat 

 larva makes such a cocoon. 



L. basistrigella Clem, makes just such a mine and cocoon as Dr. Fitch 

 describes, and in the same kind of leaves, but the larva is cylindrical, and 

 the imago is not at all like Dr. Fitchs description of his querci-albella. Again 

 no known flat larva produces an imago at all akin to the group to which 

 querci-albella belongs, according to Dr. Fitch's description. All flat larvae 

 known — at least in this country— produce imagines of some shade of 

 yellow (Sec. J3.. ante), except Hamadryadella, which is of a very distinct 

 group from Lucidicostella, Sec., to which querci-albella would belong, as 

 described by Dr. Fitch. He also says that it resembles the European 

 L. clerckella, but L. elerekella is not now recognised as a Lithocolletis at all, 

 but is known as Cuniostonnr scitella. It seems to me, therefore, that we 

 must await the rediscovery of the species before we can assign it a place 

 among the American species of Lithocolletis. 



