BEECH-BARK ‘‘ FELT-SCALE.”’ 9 
bark, and there were in each instance from four to eight fat, yellow, 
oval Coccids lying close together, but each separately in a kind of cell 
formed in the compact felt-like cottony flocks. 
‘‘On July 16th I again visited the tree, and cut out several of the 
white patches, and found in each eight to twelve pale yellow Coccids 
closely packed together in the felt-like cotton, and surrounded with 
eggs. Under the microscope I saw the Coccids were just mature.’”’— 
(J. W. D.) 
The fullest and most recent description of the insect up to present 
date is that given by Prof. Karel Sulc in his treatise, mentioned below,* 
under the present name of Cryptococcus fagi, Baerensprung, from which 
I extract some of the main points. Prof. Sule describes the female 
as elliptical, almost subcircular, canary yellow colour, and with the 
marking of the segments on the fore part of the abdomen hardly 
discernible; simple reddish eyes; antenne atrophied, so that they 
form a stump only, bearing two to four short hairs. First and second 
pairs of legs wanting; of the third only a papillar or saccate stump 
remaining (see figures 4 and 5, p. 6). 
The ‘first larva” is elliptical, reddish yellow; eyes distinct, reddish 
brown; antenne (figure 2, p. 6) five-jointed, third and fourth joints 
shorter than the others, and equal in length. Legs (figure 3, p. 6) 
strong; coxa large; trochanter wedge-shaped, with a rather long 
hair; femur massive, as long as tibia and tarsus together (i.e. thigh 
massive, as long as shank and foot.—H. A. O.). Abdomen distinctly 
segmented. 
Length of the adult female 0-47 mm., breadth 0-44 mm. Male 
unknown. 
In the observations given by Mr. Douglas on this infestation (pre- 
viously referred to), under the synonym of Pseudococcus fagi, Baerensp., 
he also gives a technical description of the Coccid, with the addition 
that it possesses ‘‘a short appressed covered rostrum, of which the 
brown tubular end was free, and turned at a right angle, and from this 
end projected an extremely fine blackish seta.” He also mentioned 
that, at the date of observation, July 16th, he ‘‘saw in several in- 
stances the actual extrusion of eggs,—large, pale yellow, oval, and 
transparent.” 
From the minute size of the insects, as well as the adhesion of the 
flocculent surroundings, and likewise from their being unicolorous, 
there is great difficulty to any but highly skilled manipulators in 
securing specimens for figuring, and I wholly failed in the matter; but 
* See “Studie o Coccidech”’ (“A Study of Coccids”), by Karel Sule. F. 
Rionace, Prague, 1895. 8vo, pp. 1-27, 3 plates. This publication is an extract 
from the Transactions of the Inst. for Comp. Anat. and Zoology, Bohemian Univ., 
Prague, and is issued separately, with English translation accompanying. 
