238 Journal New York. Entomological Society. [Voi. viir. 



anal feet, the posterior half of the circle being obsolete. Cervical shield rectangular, 

 the posterior angles rounded, bisected on dorsal line, complete as to its sette ; not 

 strongly cornified, pale, a large black patch on posterior lateral angle and a small one 

 on anterior angle. Tubercles normal, distinct, brown-black, with rather long pale 

 setK. On thorax ia and ib well separated, iia -|- iib, iv -|- v ; on abdomen, i dorsad 

 to ii, iv and v in line, remote, vi normal, vii of three setce in a nearly straight line on 

 a common elongate tubercle, viii normal. Feet surrounded by black, chitinous ring- 

 .shields. Skin smooth, blackish ; a pale yellowish patch about tubercle i, large on 

 joints 3, 4, 8 and g, small on the others, absent on il ; a lateral patch about tubercle 

 iii, large on joints 2, 3, 4, 8, 9 and 12, small on the others ; smaller patches about 

 iv and v and before vi on joints 3, 4, 8, 9 and 12. Anal flap blackish, paler centrally, 

 not cornified." — Harrison G. Dyar. 



When younger, the larva is of a much lighter appearance, the yellow 

 predominating. It is very agile and runs quickly forwards or back- 

 wards and lets itself fall on a silken thread, if the leaves are not care- 

 fully handled. When ready to pupate it enlarges its cell by adding 

 the third leaflet, and suspended by a slight web a thin white half- 

 transparent oval cocoon is spun inside the cell, in which the larva 

 transforms to a rather robust light brown pupa. 



There are two or three overlapping generations yearly in this lo- 

 cality, the moth issuing late in June and late in August and sometimes 

 again late in September 



The species over-winter as imago. The imago is very retired in its 

 habits and is not taken at light. 



I believe this species is very local ; I have reared the moth in 

 numbers for three successive years, but all taken within a limited area 

 on the eastern side of the eastern branch of the Potomac River. Al- 

 though the food-plant is common everywhere I have, though diligently 

 seeking, never found it elsewhere, not even iii other parts of the Dis- 

 trict of Columbia apparently similar in nature. I have not seen a single 

 specimen in any of the collections except those reared by myself. 

 Neither had Miss Murtfeldt, Dr. Dietz or Professor Fernald ever met 

 with it, and such a conspicuously marked insect would be likely to be 

 remembered if once met with. 



I have named this, the first Tineid I ever reared, in honor of my 

 friend and teacher Mr. Th. Pergande, under whose guidance I have 

 had the good fortune to be initiated into the closer study of insect life 

 in the field and in the insectary. 



Triclonella villella, sp. nov. 



Labial palpi light yellowish brown, blackish on the outside. Face, head, thorax 

 and anterior wings unicolorous light yellowish brown, the same shade as in pergan- 



