21 
A. (Hemiberlesia) cydonie Comst.— ? scale like that of rapax. Q with four groups of 
ventral glands, differing from convexus in having only two pairs of interlobular 
incisions, and the plates more prominent. On quince in Florida. Maskell 
reports it on Citrus from Samoa, and Green on fig, Citrus, etc., at Punduloya, 
Ceylon. Dr. Howard informs me that it has never been received at the Depart- 
ment of Agriculture since 1880, so it must be rare in America. 
A. (Diaspidiotus) forbesi Johns.—Q scale much like that of A. ancylus. Q yellowish, 
with two pairs of lobes; 5 groups of ventral glands. On cherry, apple, pear, 
plum, quince, currant, and perhaps other trees. Illinois, and Mesilla, N. Mex. 
A. (Diaspidiotus) howardi Ckll.— ? scale flat, circular, pale grayish; exuvise covered, 
dull orange. @ very 
similar to that of A. an- 
cylus, but two pairs of eT ear ae 
] a cle A\ Uv 
lobes. On plum, Canyon’ | | ee at UN 
a Sinkimnna o G 
City, Colo.; Albuquer- eee Ai a By 
£E yl 
que, N. Mex. <a es 3 oe 
A. (Diaspidiotus) juglans-regie DA ; ° 9 
Comst.—@ scale circu- c te 2 
lar, flat, grayish~brown, Me ° A 2 
: “ 7 5 
exuvire covered; diam. 
of scale,3 mm. @ with Div. Ent. 4972. 
two or three pairs of On Bigslovia. 
lobes; grouped glands Asbidietus Aigeloviai, CH, 
present. On En glish Fic. 12.—A spidiotus bigelovie (original). 
walnut in California; 
on locust, pear, and cherry in New York and District of Columbia. 
var. pruni Ckll.—Q with the oval pores more numerous, the fourth or external 
row of about 20. On plum, Las Cruces, N. Mex. 
var. albus Ckll.— 9 scale white; exuviwe orange-red, covered by white secretion. 
Mesilla Valley and Las Vegas, N. Mex. 
A. (Pseudodiaspis n. subg.) larree CkIl., n. sp. (Fig. 13.)— 9 scales abundant on a stem 
of Larrea tridentata; scale about 
‘ aa 2mm. diam., flat, irregular, round 
ny Man tae to suboval, dull white witha slightly 
wie | creamy tint; exuvise not visible in 
fU! v) the mature scale, but in younger 
Ue | scales the elongate-oval, pale straw- 
aN : colored first skin is exposed, sub- 
i lateral or even quite lateral. Q cir- 
8 earner cular, not chitinous; only one pair 
ee Revoncs of lobes; these broad and low, close 
Aclascvece, Cee together but not touching; no 
(s.4-Psiudodiaspis.) plates; no groups of ventral glands. 
Fia. 13.—A spidiotus larree (original). The 2’s contain embryos, which even 
after boiling remain sepia brown. 
A dried 9 is oval, orange, with prominences on the margin. @ scale small, 
elongate, mytiliform, white, with the elongate first skin projecting at the small 
end, like a Mytilispis. Yuma, Ariz. (Diy. Ent., 7502, coll. by H. G. Hubbard). 
This curious species is for the present left in Aspidiotus, because it seems to 
have points in common with the Indian 4. moorei, ireen. Pseudodiaspis will, 
however, no doubt eventually be regarded as a distinct genus, on account of 
the mytiliform ¢ scale and other characters. 
A. (Melanaspis) obzearus Comst.— 9 scale very dark gray, only slightly convex; exuviwe 
sublateral, covered; diameter of scale 3 inm.; g scale oval. Qwith three 
pairs of well-developed lobes; 5 groups of ventral glands. On willow-oak at 
Washington, LD. C. 
