PERGANDE — NORTH AMERICAN PHYLLOXERINiE. 225 



longest., Legs slightly hairy; femora very thick above, slander in the 

 middle, being not half the upper diameter, then swelling out and clavate 

 toward the lower end ; feet with one joint, two claws and two digituli; 

 which have clavate ends. 



" Mother Insect. — Pale greenish-yellow, orange-yellow about the head; 

 antennae, proboscis and legs black ; abdomen pointed, very versatile. 



" Microscopic view. — A few very short, fine, black hairs scattered over 

 the body ; three spiracles are seen along each side ; surrounding the 

 femur there is an inverted conical or bell-shaped cup, bordered with black, 

 within which the limb has room to work freely, and outwardly a franum 

 or skin attaches the side of this cup to the body, its lower margin black 

 and about as large as the diameter of the cup. Proboscis projecting down- 

 wards between the fore legs. Eyes black. Tarsi with one joint, two 

 claws, two long globe-ended digituli, and several hair-like spines. Antennae 

 3-jointed, first two joints short and thick, subglobular, the last long and 

 clavate. 



"Pupa. — Pale orange, wing-pads lighter; eyes brown; ocelli red; feet 

 plainly showing two digituli." 



Of the winged imago thousands were observed, each cell con- 

 taining from thirty to forty specimens. On June i8th I found no 

 eggs, only a few larvae and many pnpse. 



I am rather suspicious that this may be the Phylloxera carycs- 

 globuli of Walsh ; but he says {ibid.) that the gall of his species 

 is " spherical " and also that the size of the insect is " .07 to .08 

 inch in length ' ' and that the abdomen is blackish. But 

 unless described from living specimens, the color is of no value, 

 as they all turn black after death. 



Phylloxera conica Shinier. 



PI. v., figs. 26-29 ; PI- XI., figs. 75-78. 



Dactylospkcera conicum Shinier. Trans. Ann. Ent. Soc, 2, 



P- 390. 

 Phylloxera c.-Mnica Riley. Seventh Ann. Rep. Nox. and Ben. 



Ins. of Mo., p. 118. 

 Phylloxera c.-conica Thomas. Eighth Rep. Nox. and Ben. 



Ins. of 111., p. I. 

 It is rather strange that Shimer failed to mention the color of 

 this gall, notwithstanding it is one of the handsomest of this 

 group. There can scarcely be any doubt, however, that the gall 



