736 PROCEEDINGS OF THE NATIONAL MUSEUM. v'ol.xxiv. 
I. DEPRESSARIA ATRODORSELLA Clemens. 
Drepressaria atrodorsclla CuEWE^ii, Proc. Ent. Soc. Phila., II, 1863, p. 124. — Rob- 
inson, Ann. Lye. Nat. Hist. N. Y., IX, 1870, p. 156, pi. i, fig. 7.— Packard, 
Guide Stud. Ins., 1870, p. 349.— Clemens, Stainton's Tin. Nor. Am., 1872, 
p. 230.— Chambers, Can. Ent., IV, 1872, p. 91.— Zeller, Verh. Zool. Bot. 
Ges. Wien., 1873, p. 233.— Chambers, Bull. U. S. Geol. Surv. Terr., IV, 1878, 
p. 138. — Walsingham, Proc. Zool. Soc. Lond., 1881, p. 312. — Coquillett, 
Papilio, III, 1883, p. 98.— Riley, Smith's List Lep. Bor. Am., 1891, No. 5255.— 
Dietz, Smith's Cat. Ins. N. J., 1900, p. 473. 
Foodjplant. — Bidens frondosa. 
The larva is green, with dorsal and su])dorsal stripes of very dark 
green, blackish or brown; pilifcroiis spots and spiracles dark brown 
or black; head yellowish-brown, with two black lateral dots; thoracic 
shield yellowish-green, with a black spot on the middle of each outer 
edge. Length, 18 mm. It folds the leaf lengthwise. [Coquillett.] 
In the U. S. National Museum collection are specimens from the 
District of Columbia; New York, a specimen from Asa Fitch's collec- 
tion, with his manuscript name '''' inanella''^ attached, and one from 
Connecticut (Beutenmiiller). 
2. DEPRESSARIA UMBRATICOSTELLA Walsingham. 
Depressaria umbrcUicostella Walsingham, Proc. Zool. Soc. Lond., 1881, p. 318, 
pi. XXXVI, fig. 8.— Riley, Smith's List Lep. Bor. Am., 1891, No. 5283. 
Foodjplant.— Helianthus jpumAlus. 
In the U. S. National Museum are cotypes received from Lord Wal- 
singham, collected in Oregon in 1872. Also other specimens from 
Arizona and California, named by him; a specimen from Placer County, 
California (Coquillett); California (Beutenmiiller), and a bred specimen 
reared in Colorado by Dr. Dyar, who has kindly handed me the fol- 
lowing notes on the larva: 
Head elongate, half retracted in joint 2, black, rather dull, the clypeus brownish; 
width about 1 mm. Body moderately slender, the incisures distinct, rather flat- 
tened, all black; tubercles large, elevated, rounded, all conspicuously white ringed; 
iv and v united; on the thorax ia-i-ib and iia-i-iib. Shields black, concolorous, the 
feet shining. Abdominal feet moderate, normal. 
Lives on Helianthus pumilus, webbing up the head of the growing shoot and partly 
mining in the leaf. 
Found near Denver and Sedalia, Colorado. 
3. DEPRESSARIA THORACENIGR^ELLA Chambers. 
Gelcchia tJwracenigraella Chambers, Cin. Quart. Jour. Sc, II, 1875, p. 246; 
Bull. U. S. Geol. Surv. Terr., IV, 1878, p. 147.— Riley, Smith's List Lep. 
Bor. Am., 1891, No. 5495. 
The type of this species, labeled by Chambers and conforming with 
his description, is in the Museum of Comparative Zoology at Cam- 
bridge, Massachusetts, where I had an opportunity to examine it in 
