NO. 1301. REVISION OF AMERICAN GELECHIID MOTHS— BUSCK. 881 



GELECHIA MACULIMARGINELLA Chambers. 



Gelechia inacidimarffineUaCnAMBEiis, Can. Ent., VI, 1874, jx 241. — Hitsck, Dyar's 



List Amer. Lep., No. 5757, 1903. 

 Oelechia inacuJnnvtrgmelln Chambers, Bull. U. S. Geol. Surv., IV, 1878, p. 144. — 



Riley, Smith's List Lep. Bor. Am., No. 5405, 1891. 



Authentic types of this species are found in Professor Fernald's 

 collection and in the Cambridge Museum; the latter are in miserable 

 condition, but agree with Professor Fernald's type as far as can be 

 made out and with Chambers' descriptions. 1 have bred large series 

 of this species in the District of Columbia and vicinit3^ The larva 

 feeds on different kinds of oak, and there are at least two generation.s 

 in this locality. The larva is among the earliest found in the spring 

 (April) in the half -developed unfolded leaves or buds. 



The imago of this brood is in the middle of Ma3^ In June there is 

 a second brood feeding between two spun-together leaves; imagoes 

 issue in the latter part of July. 



Very pi'obably there is a third autumn brood, w^hich either overwin- 

 ter and lay eggs in early spring, in the swelling leaf buds, or which lay 

 i their eggs on the bud, all ready in the autumn. 



: The easily recognized larva is slender and very agile. Head and 

 I thoracic plate polished jet black ; first and second thoracic segments deep 

 ; purple, third, lighter purple with anterior half white. Abdominal 

 \ segments whitish with four (two on each side) longitudinal purple 

 lines connected on each joint by a broad purple band, which sends two 

 i small dorsal projections forward into the white part on each joint. 

 j Thoracic feet and anal plate black; length of full-grown larva 14 

 ,mm.; width of head 0.9 mm. 



\' This species as well as Gelechiavernella and GelcGhiahicostomaculeUa 

 I have the hairs on vein 11) in the hindwings of the irale strongh^ devel- 

 oped, resembling a tuft or pencil of long blackish hairs. 



GELECHIA BIMINIMACULELLA Chambers. 



Gelechia biminimaeulella Chambers, Cinn. Journ. Nat. Hist., II, 1880, ]}. 188. — 

 Riley, Smith's List Lep. Bor. Am., No. 5327, 1891.— Busck, Dyar's List 

 Amer. Lep., No. 5758, 1903. 



llie type in Cambridge Museum of this species, with Chambers' 



label on the pin and agreeing with his description, was found to l)e 



! identical with a series in U. S. National Museum bred from oak in 



i; Missouri by Miss Murtfeldt, and determined by her as this species. 



I have not met with other specimens. 



GELECHIA PSEUDOACACIELLA Chambers. 



Depressaria pseudoacaciella Chambers, Can. Ent., IV, 1872, pp. 9, 107, 129, 147, 148. 

 Gelechia pseudoacaciella Chambers, Cinn. Quart. Journ. Sci., 1, 1874, p. 208; Geol. 



Surv. Bull. U. S., IV, 1878, p. 146; Psyche, III, 1880, p. 65.— Riley, Smith's 



List Lep. Bor. Am., No. 5453, 1891. 



Li Proc. N. M. vol. XXV -02 56 



