KANSAS UNIVERSITV QUAR I KRI-V. 
■jr. 
insufficient in number for tliorougli study, taken from Jug/ans nigra, 
a potted rose, and from Ulniiis fulva. In none of tliese were either 
legs or antennae found. The paucity of material, therefore, pre- 
vents a more positive opinion. From the scales, however, it is 
evident that they are closel}' related, if not identical. Of the scale 
on Ulmus fiiliHi Professor Cockerell says: “I feel confident that the 
one on Ulmns fnh'a belongs here.” If these can subsequent!}' he 
proven identical, it will he of interest in showing the range of 
adaptability of this species. 
X 
Lecanium cockerelli nov. sp. Plaii-rnSB I'igs. i, 2, 3. 
Scale of female. Average long. 8.5, lat. 5 to 6 (apparently 
governed by width of branch), alt. *3, /x. Scales of extreme length 
are long. 10.4, lat. 6.6, alt. 4.2 This striking scale will he easily 
recognized by its two prominent tubercles on the cephalic 
half of the body, situated laterad of the longitudinal median line. 
From these tubercles the body descends rapidly cephalo-ventrad 
to the bark of host, giving the cephalic aspect somewhat of the 
appearance of the upper part of the face of a bull dog. From 
the tubercles the body slopes graduall)' caudo-ventrad to the bark 
of the host. Derm closely pitted with shallow punctures, color 
very dark brown. 
When removed from bark the margin of the insect leaves an 
elliptical ring, central portion of which is covered by a white 
powder, by transmitted light derm is shown to be closely per- 
forated by minute gland pores. 
Antennas, stout, eight segments, arrangement of hairs and length 
of segment shown in figure. Leg stout, tarsus bears two long 
slender knobbed digitides, claw with two stouter digitides, length 
of claw and tarsus 128 micromillimeters. 
Habitat. Taken I'ebruary. 1898, on I'hinis amrricana in Law- 
rence, Kansas. Many of the outer branches of trees were closelj’ 
studded upon the upper surface b\- these scales. 'I he same trees 
were examined February of this year and but a single specimen 
was found. I cannot charge this disappearance to parasites exclu- 
sively. I would rather believe that the severe weather and the 
two very heav}’ sleets that covered the trees atui remained upon 
them for several da)’s were largely responsible for the clearance of 
old scales. 
This attractive species is dedicated to Professor T. D. A. Cock- 
erell wl;ose studies have greatly enriched Coccidologic al liter- 
ature. 
