384 HENRY SHIMER, M. D. 



I have frequently made careful microscopic examinations of their 

 feet, and was long ago convinced that their arrangement in the Coccus 

 family by Dr. Fitch was a manifest error. Under the microscope I 

 found the foot one-jointed, terminated by two claws, unusually long, 

 and the digituli teruiinated by knobs. 



The following is a description of the winged imago, drawn from a 

 microscopic examination of living specimens: 



Bofly short, tliick, reJdish-brown darkest posteriorly, clothed with a small 

 quantity of downy hair. Abdomen einarginate, segments very apparent ; honey- 

 tubes none. Anterior wing: intereostal space small, but clear; stigma yellow- 

 ish-fuliginous, darkest at its inner end; veins black; rib- vein strong, conspicu- 

 ously joining the costal border; oblique veins nearly parallel, the second aris- 

 ing from the origin of the stigma, the third — which might be called astigmatic 

 vein — is as straight as the others and arises towards the middle of the stigma, 

 but is aborted at its origin, the first arises about the middle of the subcostal 

 vein, within the stigmatic junction. Posterior wing has only a rib-vein which 

 forks opposite the quite conspicuous hook. Anler.nse black, fcur-jointed, the 

 divisions very conspicuous and subequal; firstjoint cylindrical, the others cla- 

 vate; a short spine on the internal exterior angle of the basal joint, and two at 

 the extremity of the terminal joint ; when viewed from under a high magnify- 

 ing power, the joints are comjjosed of several rings, and by carefully examin- 

 ing the antennas from below, the microscope resolves the first joint into two, 

 although four joints will usually be recognized. Legs black, sparsely hairy; 

 feet long, one-jointed, cj'lindrical, or somewhat tapering at the distal extremity, 

 and terminated by two claws and a few short spines. Length of body .025; 

 length of wing .O.i ; breadth of wing .02; length to tip of closed wing .07 inch. 



On June 3rd, 1808, I first observed a few of the winged specimens 

 on the leaves of the White Pine, and in order to investigate their 

 origin, T boxed a number of the lice {Coccus pinicorticis, Fitch) taken 

 from the body and limbs of the pine trees. The next day, I obtained 

 from the feeding box three winged specimens of Chermes plnifulix^ 

 Fitch, and upon making an examination of the trees, I found them very 

 plentifully on the leaves, counting from three to six on a single leaf. 

 On June Sth, I had great difficulty in finding one perfect specimen of 

 the winged imago, the cold rain which had fallen since the 4th, seem 

 to have almost entirely destroyed them, many dead ones, with their 

 wings shrivelled, were found adhering to the leaves. From the Sth to 

 the 25th of June no winged specimens could be found. 



I had originally prepared much more extended comments on this 

 subject, and notes from my observations, but for the present the above 

 will suffice to clear up the confusion thrown upon this highly interest- 

 ing subject by the writings of Fitch and Walsh, the latter even teach- 

 ing that the doccus pinicorticls and Aspidiotus pinifoUx are synony- 



