COCCIDAE OF OHIO. 5d 
gland-spines are long, simple, tapering; one laterad of each lobe and 
one on the margin of the segment toward the penultimate segment. 
Between the median lobes are two spines, neither dorsal or ventral. 
On the dorsal surface two spines are situated along the lateral margin 
of median lobes, the posterior one the larger, one on outer lobule of 
second lobe, one one-third and one two-thirds of distance to the penul- 
timate segment; on the ventral surface there is a spine situated 
laterad of each corresponding dorsal spine, except on the first lobe. 
There is an elongated pore laterad of each lobe, one half-way and one 
near to penultimate segment. Five groups of circumgenital gland- 
orifices, the median continuous with the anterior laterals. Median 
about 9; anterior lateral, 9-12, in partly double row: posterior lateral, 
12-16 arranged in double row. Anal orifice far removed from margin, 
anterior of the genital orifice nearly as far as median group of cir- 
cumgenital gland-orifices. 
Remarks: Badly infesting a Kentia Palm in the Ohio State 
University Conservatory. Excepting the median ridge, this 
seale is very flat, brownish, and oblong with parallel sides. 
Genus ASPIDIOTUS Bouche. 
A. Median lobes rather large; second and third usually small 
or rudimentary; plates small, spine-like; margin with 
two pairs of incisions bounded by thickened chitinous 
processes Diaspidiotus 
B. Median lobes large and well-developed; second and third 
reduced or wanting; plates conspicuous, deeply fur- 
cate and crowded toward median lobes; margins of 
incisions thickened Hemiberlesia 
AA. Neither elongated thickenings nor incisions with thick- 
ened edges present Aspidiotus s. str. 
Subgenus ASPIDIOTUS s. str. (Type, A. hederae Vall.) 
This subgenus is characterized by the absence of chitinous 
thickenings and incisions with thickened margins in the — last 
segment of the female. The plates are well developed and strongly 
fringed. The seale is light colored and the exuviae are naked. 
There appear to be no native American species representing this 
subgenus. From Ohio two greenhouse species are reported. 
A. Median lobes very large, broad, notched on each margin 
near apex and rounded; second and third lobes 
scarcely one-third of width of median lobes cyanophylli 
AA. Median lobes a little larger than second lobes and appar- 
ently extending into the segment; five to eight 
branched and simple plates outside of third lobe hederae.- 
