46 THE CANADIAN ENTOMOLOGIST. 



lowish-white tarsi ; middle pair like the anterior, except that there is a. 

 white annulation near the middle of the femora; another at its articulation 

 with the tibiae, and another near the base of the tibiae ; posterior legs- 

 whitish, annulate with dark brown. (Dr. Clemens says nothing about the- 

 markings of the legs and tarsi, but in his classification of his species by 

 the color of the tibiae, he places Vemistella in the section " without white 

 tibiae.") Al. ex. y£ inch. 



The larva may be found in the leaves of Eupatorium ageratoides 

 from July to October, but is rather rare. The mine is at first a 

 short narrow white line, but ends in a large tentiform mine. It. 

 is on the under surface, and the larva frequently leaves one mine 

 to form another. The maxillary palpi are a little larger in this insect 

 than in Parectopa robiniella Clem. ; and I have not examined the neuration 

 of this species, but I think it is evident at a glance that they are congen- 

 eric. And I do not see how, with a species like this before him, Dr. 

 Clemens could have placed robiniella in a separate genus. In fresh speci- 

 mens of 'robiniella the head is not roughened. At p. 7, vol. 4, ante, I have 

 suggested that Parectopa Clem, is simply Zeller's section of Gracillaria 

 with eight marginal veinlets in the primaries. Zeller's section agrees nearly 

 with Herrick-Schaffer's genus, Euspilapteryx. And a glance at a figure of 

 Gracillaria (Euspilapteryx) amogattella, or G. (Eupilapteryx) phasian- 

 ipinella, as figured by Stainton, Nat. Hist. Tin., or the former in Woods' 

 Index Entomologicus, settles the position of Parectopa so far as the pattern 

 of coloration can affect it. 



Many of the species of this genus, when very young, make linear 

 mines. The mines of G. plantaginisella and G. eupatoriella are short,, 

 crooked lines, ending in the large tentiform blotches heretofore described.. 

 That of G. salicifoliala is a narrow white line, sometimes nearly straight 

 and with lateral branches on the underside of Willow leaves ; when it 

 leaves this mine it again enters the underside, but passes immediately 

 through to the upper surface, where it makes the large blotch mine. The 

 statement at p. 20 ante, that it makes but a single mine, is incorrect, as it 

 commonly makes two or three. The young larva is flattened, resembling 

 somewhat a flat Lithocolletis larva. G. purpuriella sometimes pupates, 

 under a web, as stated ante p. 28, but usually in its cone. The complete 

 cone sometimes occupies an entire leaf; the apex of the leaf is bent over,, 

 so that the left edge touches the right one, to which it is fastened ; then 

 the leaf is rolled spirally to the base, and the tip is used to close one end 

 and the base the other, so that the whole leaf is utilized. Many of the 



