PERGANDE — NORTH AMERICAN PHYLLOXERlNA. 237 



Dadylosphcera coniferum Shimer. Trans. Am. Knt. Soc, 2, p. 



397- 

 Phylloxera c.-globosum Thos. Eighth Rep. Nox. and Ben. Ins. 



of Ills., p. 163. 



I have had no opportunity to add anything new to what has 

 been recorded by Shimer, and reproduce such parts of the original 

 description (Proc. Acad. Nat. Sci. Phila., 1867, p. 2 and 3) as 

 undoubtedly have reference to this species, substituting migra- 

 tory female for his term m.ale. 



In his original description Shimer has confounded this large 

 gall and its architects with those of the rather minute galls of 

 c.-semen Walsh, found growing at the time upon the same leaves, 

 notwithstanding that, as he himself states, none of the small galls 

 contained the winged form, but were simply crowded with the so- 

 called larvae which, as has already been shown, were, without 

 much doubt, the true sexes. 



" Gfl// variable in size, often numerous in the parenchyma of the leaf, 

 others on the veins and leaf stalks, all opening on the lower side of the 

 leaf, with a very small orifice ; smoothish, of a somewhat leathery struct- 

 ure, pale yellowish-green, glaucus or dark green ; sub-globose or some- 

 times somewhat irregular, without any of the mealy sugary dust within, 

 which is common in galls of the Aphis family. 



"Female \Stem-mother\ much resembling the 'grape leaf buse'(Z?. f 

 vitifolice), but smaller, the dull pointed promuscis blackish at the extrem- 

 ity ; eyes of few (about five) facets. 



"Eggs similar to those of the "grape leaf louse.' Smaller and of a 

 deeper yellow. 



Pupa of male [Migratory female] orange-yellow, sometimes inclined to 

 greenish ; undeveloped wings pale yellow ; body somewhat elongate ; abr 

 domen pointed ; antennae hnear, three-jointed, ist thick, subglobose ; 2d 

 smaller, short, thick ; 3d very long, clavate, obliquely pointed, without a 

 spine at the apex, a spine on the inner side of the first and second joints. 



Male {^Migratory female. \ — Abdomen and prothorax orange-yellow; 

 mesothorax, head and eyes, blackish ; legs and antennas dark cinereous. 

 Wings hyaline, broad, somewhat overlapping as they lie horizontally on 

 the back. Anterior wing, evenly rounded on the posterior margin ; ante- 

 rior margin rather stright, somewhat curved, convex at the middle of the 

 stigma, apex quite broadly rounded, the wide wedge-shaped base not 

 extending beyond the middle ; stigmatic nervure nearly straight, termin- 

 ating in the centre of the apex, not visible at either end. The disooidal 

 within the middle of the wing, not visible at its outer end, somewhat con- 

 [Proc. D. a. S., Vol. IX.] 39 [Nov. 13, 1903.] 



