222 ENTOMOLOGICAL NEWS [ May, 714 
A new Coccid Infesting Citrus Trees in California 
(Hemip.). 
By Roy E. Camppett, Berkeley, California. 
In the early part of 1909 student inspectors from Pomona 
College discovered a soft scale on citrus trees near Claremont, 
California, which appeared to be different from the common 
Coccus hesperidum Linn. The insect was first identified as 
Coccus longulus Doug., but was later changed to Coccus elon- 
gatus Sign. Recent investigations by the writer indicate that 
the scale is a new species. 
The insects were observed in no great numbers, but have 
since become considerably more abundant, and have also been 
found in a number of other localities. 
Ccccus citricola n. sp. 
Adult Female—Length, 3 to 6 mm.; width, 2 to 3 mm.; general 
color, dull gray, interspersed with numerous irregular yellowish spots. 
Body elongate, ends broadly rounded. Dorsum with small blotches 
forming a distinct irregular yellow stripe extending from anal plates 
almost to anterior margin. Two similar less distinct submedian stripes 
parallel with margin, and occasionally two indistinct submarginal 
stripes. A yellowish band of the same character extends around the 
margin. Antennae regularly eight-jointed, occasionally a specimen has 
seven joints in one and eight in the other, rarely seven in both. Aver- 
age and most common formula 8-3-1(4-5)-2-6-7. The eighth is prac- 
tically invariably the longest joint, sixth and seventh the shortest, 
while the rest vary considerably. No hairs on third and fourth 
joints. Stigmatic cleft small, with three spines, median spine curved 
and three times as long as others. Marginal hairs numerous, simple, 
pointed. Submarginal tubercles very few, or wanting. Anal ring 
with six long pointed hairs, plates of the anal operculum with the 
base slightly longer than the outer edge. Four fringe setae in 
groups of two across anal plates, with the lateral setae of each group 
longer than the mesal. Three subapical and four apical setae on 
each plate. Tibia one-third shorter than femur and very slightly long- 
er than tarsus. 
Adult Male.—Length, 1 mm.; body width, .28 mm.; style, .25 mm.; 
antennae, .57 mm.; wing length, .17 mm.; wing width, .o5 mm. Color, 
dark honey yellow, head and thorax slightly darker. Anterior pair 
of upper eyes brownish, small. Posterior pair of upper eyes dark 
brown and much larger than anterior pair. Ventral pair dark brown, 
