164 Cincinnati Society of Natural History 



COLEOPHORA QUADRILINEELLA CHAMBERS. 



Coleophora quadrilineella Chambers, Bull. Geol. Surv. Terr., 

 IV, 94, 1878 ; Dyar, List N. A. Lep., No. 6039, 1902. 



This is the smallest species of the four, the case of the mature 

 larva measuring but 4-4.8 mm. in length. The case is a narrow 

 cylinder, tapering to the mouth, three-valved 

 at the apex, and sheathed along its upper sur- 

 face for three-fourths its length by one of the 

 three divisions of the capsule. The base of 

 cas^ oi c. quadtTiineeiia, the capsulc divisiou is fastened just back of 

 '^^> the mouth of the case, but does not entirely 



surround it. As Chambers has described it, the appearance is that 

 of ''a clear, shining shield covering its upper anterior portion." The 

 posterior fourth of the case has numerous grains of excrement ad- 

 hering to it. / 



Chambers' description of the imago is not very accurate. The 

 color of the fore wings would be more properly described as pale 

 grayish ocherous, with the costa white, a white streak along the 

 middle of the wing sending off three or four branches to the costa, 

 a short white streak just beneath the fold, and the dorsal margin 

 sometimes white. The antennae are whitish, annulate with brown 

 basal joint thickened with scales. Second joint of the labial palpi 

 with a minute projecting tuft. 



There seem to be two generations a year. Larvae feeding on 

 the capsules during the early part of July produce imagoes during 

 the latter part of the same month and in August. As the period 

 of blooming of the food plant extends over nearly the entire sum- 

 mer, there is abundant time for the second generation of larvae 

 to come to maturity. Imagoes occur again in June. 



Coleophora shaleriella Chambf:rs. 



Coleophora shaleriella Chambers, Cin. Quart. Jn. Sci., II, 116, 

 1875; Can. Ent., X, 110, 1878; Dyar, List N. A. Lep., No. 6043, 

 1902. 



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