882 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxv. 



Oelechia avcella Zeller, Verh. k. k. zool.-bot. Gesell.,Wien, XXIII, 1873, p. 252. — 

 Chambers, Bull. U. S. Geol. Surv., IV, 1878, p. 142.— Riley, Smith's List 

 Lep. Bor. Am., No. 5331, 1891. 



Of this very common insect, the hirva of which was shortly descriljed 

 by Chambers, there is a large series in U. S. National Museum, among 

 which are specimens determined by Chambers and l)y Lord Walsing- 

 ham. I have repeatedly bred it from Rohlnia pseudacacla around 

 Washington, and I have seen it from most of the Eastern States. 



The specimens, which Riley bred from wild cherry, and which 

 Chambers could not distinguish tvompseudoacaciella,^ are still in U. S. 

 National Museum and belong to another perfectly distinct though 

 quite similar species, described in this paper as Gelechia serotinella. 

 " I am indebted to Lord Walsingham for the synonymy of Zeller's 

 Gelechia csecella^ type of which is in his possession and which he has 

 given me his manuscript notes on. 



The description fully l)ears out this synon3'nw. 



GELECHIA SEROTINELLA, new species. 



Gelechia serotinella BuscK, Dyar'.s List Anier. Lep., No. 57(30, 1902. 

 Gelechia pseudoacaeiella Chambers, Psyche, III, 1880, p. 65. 



Antennse shining purplish black, with very nai'row white indistinct 

 annulations; labial palpi with second joint above whitish, strongly 

 sprinkled with black scales; under side of the well-developed brush 

 black; terminal joint black, with extreme tip and a few scattered scales 

 white. 



Face whitish, overlaid with dark pur})le. Head and thorax clothed 

 with mixed white and purplish black scales, the latter predominating; 

 forewings dark, black and white scales irregularly mixed, but the( 

 black prevailing; in a narrow longitudinal streak along" but ])elow. 

 costal edge dark-brown scales are also freely intermixed, giving thati 

 part of the wing a perceptible chocolate-brown shade. At the end of' 

 this streak at apical fourth the white scales congregate in an ill-delined 

 costal white spot, which is connected with an opposite equally ill- 

 defined dorsal white spot by a wavering interrupted narrow whit^ 

 fascia. Cilia dark fuscous, intermixed with white and with two faint 

 blackish lines parallel with the edge of the wing. 



Hindwings as broad as forewings, dark shining fuscous; cilia, light 

 fuscous; abdomen above on the first segments velvety yellowish brown; 

 the other segments and under side very dark shining fuscous; legs 

 with white and dark purple scales intermixed; posterior tibia on the 

 outside black, with two white bars, on the inside silvery white; tarsal 

 joints black, tipped with white. 



Alar expanse. — 16 to 21 mm. 



Food plant. — Prunus serotina. 



Psyche, III, 1880, p. 65. 



