OHIO STATE ACADEMY OF SCIENCE. 
Or 
no 
lateral margins to the segment. Lobules of second, third and fourth 
lobes, subequal: the outer usually lower and broader. Fourth lobe 
obscure and serrate. There is a gland-spine, located just laterad of the 
first, second, third and fourth lobe respectively, and iaterad of the 
fourth lobe at subequal distances are 4-6 tubular gland-spines. Between. 
the fifth and sixth gland-spines is a dark-colored, pointed projection. 
of the body wall. The first pair of spines on the ventral surface: 
project caudad between the median lobes; the second and third mesad. 
of the second and third gland-spines; the fourth between the fourth 
and fifth, and the fifth spine between the seventh and eighth gland-~ 
spines respectively. On the dorsal surface, a small spine at apex of 
median lobe; second and third spines on lateral lobule of second and. 
third lobes respectively; fourth mesad of fourth gland-spine; fifth 
between sixth and seventh plates. Groups of circumgenital gland- 
orifices distinct, elliptical in outline; median, 8-16; anterior lateral, 
20-28; posterior lateral, 15-18. 
Remarks: In greenhouses on Palms, Orchids, Jlaranta, ete. 
Diaspis bromeliae (Kerner). 
This species, which is a great pest where pineapples are 
vrown, has been reported at Columbus by Prof. E. EK. Bogue. It 
is similar to Diaspis boisduvali except that the smaller median 
lobes project beyond the margin of the segment; 1. e., they are 
partiy free, while in the latter the median lobes are adnate, along 
the entire side, to the segment. 
Diaspis echinocactt cacti Coust. 
Figs. 43, 76. 
Diaspis cacti Comst., 2nd Rep. Dep. Ent. Corn. Univ. p. $1 (1883). 
Diaspis cacti Ckll., Can. Ent., xxv, p. 127 (1894). 
Diaspis cacti Osborn, Contr. Ia. Ag. Coll., p. 5 (1898). 
Scale of female: Nearly circular, 1.5—1.7 mm. in diam., white to 
light-gray; exuviae central or subcentral, dark brown. 
Scale of male: White, unicarinated; exuvia yellowish to 
brownish. 
Female: Four pairs of small lobes; the mesal with entire margins, 
apparently extending into the segment, widest near middle, diverge 
suddenly to a rounded apex. Lobules of second, third and fourth 
lobes, subequal, parallel and subtruncate. Plates and spines similar 
to those of Diaspis boisduvalii. Median group of circumgenital gland- 
orifices, 6-18; anterior lateral, 16-22; posterior lateral, 12-18. 
Remarks: Found in Ohio State University Conservatory: 
badly infesting a night-blooming Cereus. 
