Jan 15, 1925 
Scale Insects of the Subfamily Ortheziinae 
107 
ee. Spine collar around opening of each thoracic spiracle, if developed, made up of spines similar 
in shape to and, at most, only a little smaller than the remaining body spines; inner spines of 
those in the two posterior dorsal clusters not obviously reduced in size in comparison with 
the remainder; other characters varying. 
h. Outer halves of the dorsal spine bands of the 4 intermediate abdominal segments dis¬ 
placed on each side of the body by 4 trapezoidal, heavily chitinized plates; size small, 
length as mounted little more than 1 mm.; apparently with only 4 pairs of abdominal 
spiracles........ balloui, new species. 
hh. Body chitinization, if developed, not as described above, never interrupting the abdom« 
inal spine bands; other characters varying. 
i. With 3 more or less distinctly developed, chitinized, oval plates interposed between the 
outer ends of the intermediate dorsal abdominal spine bands on each side; length as 
mounted about 1.3 mm.; apparently with only 4 pairs of abdominal spiracles_ 
..... tillandsiae, new species. 
ii. Body chitinization, if developed, not as described above; other characters varying. 
j. With a more or less elongate or oval, dorsal, chitinized derm plate extending caudad 
from the anterior body margin for about the depth of the anterior marginal spine 
band, this plate frequently obscured by the mouth parts in mounted specimens; 
with 7 pairs of abdominal spiracles. 
k. Ovisac band inclosing 4 definite transverse spine bands, these all relatively narrow. 
I. Disk pores widely scattered through the inner two-thirds of the anterior median 
section of the ovisac band, as well as in a band along its inner margin; no visible 
row of such pores along the outer (anterior) margin of this section of the band; 
chitinized thickening stout oval_ varices Leonardi. 
II. Disk pores, at most, present only through the inner one-third of the anterior 
median section of the ovisac band; with a row or band of disk pores along the 
outer (anterior) margin of this portion. 
77 i. Anterior median section of ovisac band relatively narrow, as little as 8 to 
10 spines wide; with a single to irregularly double row of pores along outer 
(anterior) margin, and a band about 3 wide along and through the inner 
(posterior) margin; antennae slender, length about 0.9 mm.; dorsal spine 
bands incomplete; known only from the Galapagos Islands_ 
____ galapagoensis Kuwana. 
mm. Anterior median section of ovisac band relatively much wider, at least 14 
spines wide, other characters varying. 
7 i. Antennae normally relatively short and with broad segments, about 0.6 
mm. long; dorsal spine bands, particularly on the abdominal segments, 
incomplete, tapering at outer ends; anterior median section of ovisac band 
with a single row of disk pores along outer (anterior) margin; dorsal 
chitinized thickening oval.... ultima Cockerell. 
7772. Antennae normally long and more slender, exceeding 1 mm. in length; 
dorsal spine bands continuous to the marginal, outer ends somewhat 
expanded, the individual bands on the abdomen quite narrow; anterior 
median section of ovisac band with a double to quadruple row of disk 
pores along outer (anterior) margin. 
o. Anterior median section of ovisac band with only a single row of disk 
pores along inner (posterior) margin, but with a triple to quadruple 
band along outer (anterior) margin; eyestalk asymmetrically flattened 
conical; chitinized thickening oval.. garryae Cockerell. 
oo. Anterior median section of ovisac band with a band of disk pores 3 or 4 
wide along and through the inner (posterior) margin, and with a double 
to triple band along the outer (anterior) margin; eyestalk at least strongly 
rounded conical; chitinized thickening at most elongate triangular. 
p. Eyestalk asymmetrically elongate conical; abdomen with scattered 
spines ventrally between the ovisac band and the anterior and 
posterior transverse bands of spines.. longipes Hempel. 
pp. Eyestalk rounded conical; abdomen with only the normal 4 narrow 
transverse bands of spines within the ovisa'* band .praelonga Douglas. 
