Agv. 17, MONOPHLEBINAE AND MARGARODINAE—MORRISON. 19 
“long white anal setae’ as of value in separating crawfordi and 
pilosior. It seems evident that this refers to a hollow wax tube 
secreted for the purpose of conveying the liquid excrement into the 
open from the usual location of the insect beneath the back of the 
host, and equally evident from an examination of the anal tube of 
these insects that all of these species possess the structures necessary 
for the production of such a wax tube. 
NODULICOCCUS, new genus.® 
Monophlebine coccids, living on Eucalyptus in Australia; adult 
female oval, broader behind; antennae 9-segmented, tapering very 
strongly; legs normal; «hp incompletely 2-segmented; with two 
thoracic and seven Aedauanal pairs of siieailca! the former with a 
cluster of pores at opening of each, the latter with a band of pores 
around opening of each; derm pores of two sorts, triangular, and 
multilocular disk with triangular or oval centers; derm with very 
stout, rounded conical spines dorsally and somewhat longer and 
more slender spines with rounded tips ventrally; derm setae of two 
sorts, stout, tapering but with bluntly rounded tips, not very long, 
and normal, slender, tapering, acute setae; anal tube short, with a 
band of irregular wax pores at inner end; ventral cicatrices interme- 
diate in number, arranged in a semicircle. Larva elongate, outline 
irregular; antennae 5-segmented; legs normal; with a single pair of 
large apical setae, body dorsally with many small buttonlike tuber- 
cles, and laterally with clusters of fingerlike tubercles; dorsally also 
with small triangular disk pores and small setae set in stout bases. 
The characters which cause this genus to diverge from any other 
known to the writers are found chiefly in the larva, in the curious 
development and modification of what are presumably to be con- 
sidered as the dorsal cylindrical spines of the larvae of some other 
genera. The nature of the other larval characters and of many of 
those found in the adult seem to justify the inclusion of this genus 
with the group comprising Monophlebulus, Walkeriana, and others, 
although in no respect can Nodulicoccus be regarded as characteristic 
of the group, and it is probably the most widely divergent from the 
typical condition of any form that will be included in this group of 
genera. Why Maskell considered the type species levis as only a 
variety of his Monophlebus crawfordi, particularly after an examina- 
tion of the larva of the species, is wholly incomprehensible. 
NODULICOCCUS LEVIS (Maskell). 
Plate 1, fig. 4. 
Reference.—Drosicha crawfordi, var. levis (Maskell), Fernald Cat. 
Coec. World, 1903, p. 19. 
The Maskell collection includes two slides of this species, one of 
ff adult female, 1892,” the other of ‘larva, 1893,” and two unmounted 
6 New genera should be credited to the senior Rite only. 
