22 
KANSAS UNIVKRSITV QUAR l ERI.V . 
'.i’ere taken by Prof. V. L. Kellogg in 1891. The date of collection 
was not given but upon twigs there remained some leaves and 
blossoms SO that the time of the year can be satisfactorily deter- 
mined. 
A comparison with descriptions of /,. n/gositm Sig.* shows 
not “rugose” but plicate, not “hills” but ridges and furrows upon 
the sides. The plum scales are light brown. Antennas 6 and 7 
jointed, never “eight”; in view of obscurit}' of segmentation, it is 
interesting to note that the plum scale agrees with rugosinn in that 
3 exceeds part distad of 3, if 3+4 are one segment as in plate, figure 
4^, but if they are as drawn in same plate, figure 4 h, joint 3 is less 
than all distad. Size uniformly smaller than riigosinii, plum scale 
elongate, ru^^osum circular. Groove in anterior tarsus not shown; 
posterior tarsus not wider than tibia; chaetotaxy not similar. 
With the Queenston scaleif — “legs well developed,” trochanter 
has “one” hair, coxa bears not “one” but two long and two short 
hairs. Length of femur, tibia and tarsus within possible bounds, 
but digitulesof claw not “long” but short and stout extending but 
little beyond claw. 
No further ■ literature being at hand for comparative study 
I sent this scale with my notes to Professor Cockerell. He says. 
“ This scale has much in common with L. arwciuaniin, yet seems 
not quite the same. I wish we knew the sub- adult (living) female 
and the newly hatched larva.” Professor Cockerell kindly sent me 
specimens of armeniacum. A comparison shows, legs similar; 
antennsE agree with seven segmented specimens except that 5th 
joint in armeniaium is shorter than in plum insect. 
The greatest difference appears to be in the scale itself. When 
bleaching, it colors the fluid a yellowish ochre; the plum scale gives 
off brownish coloring. Scale of armcniacmn is not plicate and 
shows no longitudinal median raised smooth ridge: this insect, ar- 
meniaiimt, is more hemispheroidal with side tpiite full; plum scale 
more elongate and flattened. 
Professor Cockerell suggested that Mr. Theo. Pergande be con- 
sulted since he has been working upon these fruit tree Lecaniums. 
Accordingly I have received the following from Mr. Pergande 
through Dr. Howard: 
“ I have examined and compared the specimens sent with 
mounted and dry material of I.i'i'aiuiim arnicniaiiini in our collection, 
and have come to the conclusion that the plum scale from Kansas 
♦Translated by Mrs. T, D. A. Cockeroll. Can. Ent. Vol. 27. p. 51). 
Vi\ I). A. Cockerell, Ibid, p, UU. 
