104 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



face of the thorax has a white line from its anterior margin to its apex 

 (ulmella also has this line sometimes). Alar expansion as in ulmella. 

 Kentucky. 



ACANTHOCNEMES, gen, nov. 



The species on which I found this genus is very near to Phyllocnistis 

 Zell. As in that genus, the posterior tibiae are set around with spines or 

 bristles, which in this species are also found on the basal tarsal joint 

 (hence the generic name). It differs from Phyllocnistis as follows: the 

 face is wider in proportion to its length, the antennas are much shorter, 

 and the basal joiut smaller, while the stalk is serrated toward its apex. 

 The maxillary palpi are icell developed, being as long as the first and second 

 joints of the labial pair. In the dead insect, both pairs droop. The an- 

 terior wings are more decidedly caudate than in Phyllocnistis ; more so 

 in fact than iu any species known to me, unless it be some species of 

 Cosmopteryx ; and the neuration, while resembling that of Phyllocnistis 

 more nearly than any other genus, is yet sufficiently distinct from it. 

 The costal vein is short and iudistinct; the subcostal is also very indis- 

 tinct, and appears to run straight through thawing to the margin before 

 the apex. The median vein, however, is very distinct, running through 

 the middle of the wing and gradually disappearing in the "cauda" or 

 produced apex, just before which it gives a branch to the costal margin; 

 cell unclosed (?) (or discal vein oblique and subobsolete) ; there appears 

 also to be a very indistinct branch from the median to the dorsal margin 

 before the distinct one to the costal margin, so indistinct, indeed, that I 

 am not sure that it represents a vein at all; submedian tolerably dis- 

 tinct. Uind wings linear with the costal; submedian (?) and internal veins 

 moderately distinct; the subcostal, obsolete at its base, becomes grad- 

 ually more distinct as it passes to the extreme apex of the wing. Cilia 

 of both wings long. 



As I have examined the neuration of only a single specimen, and a 

 single wing only of each pair, it may prove to be more distinct than I 

 have found it. 



As shown by the following description, the ornamentation, while to 

 some extent resembling that of Phyllocnistis, is yet of a different pattern. 



A. FUSCOSCAPULELLA, W. sp. 



Head, palpi, basal anteuual joint, anterior half of the thorax, and fore 

 wings except at the base, silvery-white, faintly tinged with yellowish. 

 Base of the fore wings and apical part of thorax fuscous. Anteuual 

 stalk yellowish. The brown base of the fore wings is posteriorly mar- 

 gined by a narrow fascia of a more pure silvery- white than the remainder 

 of the wings. Legs yellowish-fuscous on their anterior margins. Alar 

 expansion a little over three lines. Bosque County, Texas. 



PHYLLOCNISTIS. 



P. ERECIITITISELLA, 11. Sp. 



Only the mine and larva are known. I have not succeeded in rearing 



