124 
Journal of Agricultural Research 
Vol. XXX, No. 2 
length of the body; body of female, as 
mounted, somewhat variable in size, 
but in well developed specimens aver¬ 
aging about 1.5 millimeter in length 
by 1 to 1.25 millimeter in width; derm 
membranous; antennae normally 8-seg- 
mented, measurements of the segments 
of one in microns as follows: I, 100; 
II, 68; III, 82; IV, 79; V, 79; VI, 71; 
VII, 68; VIII, 150; eyestalk short and 
stout conical, almost tuberculate; legs 
relatively large and long as compared 
to the size of the body, and to a similar 
relation in other species in the genus, 
otherwise characteristic for the genus, 
tarsal claw with 1 or, more frequently, 
2 small denticles on the inner face, 
spines on legs rather slender; beak 
elongate conical, 1-segmented, some¬ 
times with an indefinite indication of 
a joint visible near base; thoracic spira¬ 
cles characteristic for the genus, ex¬ 
ternal opening of each surrounded by 
band without any transverse rows of 
spines, in this respect differing from 
all the other species of the genus; anal 
ring oval to elongate oval, the pore 
band on each half distinctly but not 
prominently angulate anteriorly and 
posteriorly on its inner margin and 
normally continuous with the opposite 
band at the anterior and posterior 
ends of the ring, this again differing 
from the condition among most of the 
species in the genus; with the usual 6 
anal ring setae. 
This species has been reported from 
or is represented in the collections 
examined from the following localities: 
Algeria, Antigua, Barbados, Ber¬ 
muda, Brazil, British Guiana, Canal 
Zone, Ceylon, China, Costa Rica, 
Cuba, Dominica, Ecuador, England 
(in greenhouses), France, Guatemala, 
Hawaii, Italy, Jamaica, Java, Madeira, 
Mauritius, Mexico, Montserrat, F&na- 
Fig. 18 .—Orfhezia in&ignis: Map showing actual known distribution. Large dots show records based on 
specimens actually examined; small dots show records based on published reports of occurrence 
a spine cluster including some smaller 
spines close to the opening, but with¬ 
out a distinctly developed spine collar; 
with 7 pairs of simple, tubular, abdomi¬ 
nal spiracles; derm pores of the usual 
quadrilocular disk type only, these oc¬ 
curring both dorsally and ventrally but 
much more abundant ventrally within 
the area inclosed by the ovisac band, 
varying noticeably in chitinization and 
to some extent in size, the more heav¬ 
ily chitinized ones with a depth nearly 
as great as their diameter; derm with 
setae scattered over the surface both 
dorsally and ventrally, most numerous 
in loose clusters anterior to the genital 
opening ventrally; arrangement of the 
body spine clusters corresponding to 
the patches of secretion showing on per¬ 
fect specimens, and about as shown in 
figure; ovisac band broad, made up of 
spines with some quadrilocular disk 
pores along the outer margin and others 
paralleling but not adjacent to the 
inner margin; area enclosed by this 
ma, Peru, Porto Rico, Portuguese 
East Africa, Saint Kitts, Saint Lucia, 
Saint Thomas (Virgin Islands), Saint 
Vincent, San Thom6 (Africa), Santo 
Domingo, Straits Settlements, United 
States (in greenhouses), including Cali¬ 
fornia, Connecticut, District of Colum¬ 
bia, Illinois, Indiana, Massachusetts, 
New Jersey, New York, Ohio, Penn¬ 
sylvania, and Virginia. 
Host records on the same basis as 
distribution, that is, including both 
published records and those based on 
identifications of material, are as fol¬ 
lows: 
Abutilon (Malvaceae), Achillea 
(Compositae), Achyranthes (Amaran- 
taceae), Ageratum (Compositae), Aloy- 
sia (Verbenaceae), Atalantia (Ruta- 
ceae), Barleria (Acanthaceae), Big- 
nonia (Bignoniaceae), Capsicum (Sola- 
naceae), Catalpa (Bignoniaceae), 
Cestrum (Solanaceae), Chionanthus 
(Oleaceae), Chrysanthemum (Com¬ 
positae) , Cineraria (Compositae), 
