Article beginning on page 187.
Psyche 7:187, 1894.

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January 1895.1 PSYCHE. 187
large.
Cheeks not one-third the vertical
diameter of the eyes.
Antennae yellowish
red. Palpi light yellow. Thorax dark
reddish brown, opaque, the mesonotum
with a pair of stripes and the lateral mar- gins yellowish white pollinose. Pleurae
with a similar light colored stripe at about its middle. Abdomen deep reddish brown
or black, opaque, with the lateral margins opaque light yellow; ovipositor yellow.
Legs wholly light yellow; the four anterior femora only a little thickened; tip of hind tibiae and the distal joints of all the tarsi brown ; hind femora considerably thick-
ened; hind tibiae arcuate, not dilated, with a few short bristles on the outer side;
all the femora with spiny bristles on the under side distally. Wings brownish,
lighter colored along the costa; first pos- terior cell elongate. Scutellum yellowish, whitish pollinose. Length 8-9 mm.
Two specimens, Chapada, Brazil,
H. H. Smith.
A PSYLLID LEAF-GALL ON CELTIS, PROBABLY PACHYPSYLLA CELTIDIS-PUBESCENS RILEY.
BY C. 11. TYLER TOWNSEND, LAS CRUCES, N. M. On May 14, 1892, I found at Riley's
water, at wcstern base of the Organ
Mountains, some small leaf-galls on
Celtis occidentalis. The tree was
determined by Mr. Walter H. Evans,
who was wit11 me at the lime. The
galls at that clate showed on the upper
side of the leaves as small swellings
about 3 to 5 mrn. in diameter, with a pit in the center, thus appearing like raised circles. On thc under side they showed
simply as smaller warts covered with
fine rather long pubescence. Several
galls occurred on the same leaf.
On Nov. 26, 1892, in the north end
of the same range, south of San Augus-
tine and part way up from the base of
the mountains, there were found numer-
ous fallen leaves of Celtis containing
fully developed galls of this species.
As many as 20 galls occurred on one
small leaf. There were occasionally
some double galls. The fallen leaves
were green in color, but nearly dry.
This gall appears without rnucl~ doubt
to be that of PachyfsyZZa celtidis-
ĺ´pubescen Riley, as it agrees well with the description.
The dried galls on the leaves just
mentioned measure 2 to 3 mm. hi
diameter on the lower globular portion.
The upper circular ri&-like portion is
3 to 4 mm. in diameter. Only galls from
which the occupants had emerged were
measured. The exit holes are in the
side of the pit-like depression 011 upper surface of leaf. They are elongate
openings, so as to allow the egress of
the wide-bodied and flattened pupa.
Occasionally a gall has a small circular - -.
opening, in one case this being in the
globular portion of the gall on the under side of the leaf. These mark the exit of a small l~ymenopterous parasite.
Some of the above dried galls having
no exit hole were opened, and some




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188 PSYCHE.
[January 1895
dried pupae found within. These may
be described as follows :-
PsyUid $,~fa.- Length (abdomen shrunk-
en), 1.2 to 1.4 mm. ; width, I to 1.2 mm. The wing- pads in their naturally half-spread condition give an apparent width, equaling the somewhat shrunken length; they are
distinctly longer than width of thorax.
Pupa rather oval or rounded in outline,
widest, in middle of abdomen; finely and somewhat sparsely pubescent on bocij,
wing-pads and antcuriae; abdomen long
piibescent. Pale yellowish, eyes hhick;
mesonotun?, pronoturn, and top of head
roseate; anterior pair of wing-pads pale rosy yellowish, hind wing-pads paler. Abdomen pale greenish, with an anterior median rosy yellowish area, the terminal portion broadly brownish with t\ median row of small black spines ending in a spiny tubercle, 13 spin& altogether in the row, and one on each side of row on posterior edge of abdomen.
Spines are arranged thus : first (miteriorl?) three in a triangle with apex posteriorly directed; then three more in a similar
trixngle; then the bunch of six in three pairs with a larger central one, giving the appearance of a spinigerous tubercle.
These spines grow lunger ZHKI stouter
towards posterior end of row. On segment anterior to that hearing the first three above mentioned, there seem to be an additional hardly vi&ible three. But in the large1
specimen there is in place of these only one quite conspicuous one of good size. Legs and under side of body pale greenish, sternal and anterior portions yellowish rosy, the legs more or less shaded with same color. Antennae greenish :it base, more rosy or pale apically.
Described from two specimens, taken
from dried galls found Nov. 26. The
galls picked May 14 disclosed nothing.
The veiy small, elongxte, whitish
eggs of this psyllid were found on a
cluster of young leaves, May 14. The
eggs were quite thickly attached to the
under surface of the leaf, adhering by
one end, and slantcd toward the tip of
the leaf. A fewer number also
occurred on the upper surface. But
a considerable number of the just-
l~atched yonnpwerc fomicl on upper
surface, where they were beginning to
bury themselves in the substance of
the leaf to form their galls.
The Celtis is probably the vat.
rcticulata.
Two small l~yinenopterous parasites
mied fiorn the dried galls above
ncntioncd. They have been deter-
mined by Mr. Win. H. Ashmcad as
Cera@on sp., and Tetrastichus sp.
PHTHIRIA SULPHUREA LOEW.
BY T. D. A. COCKERELL, H. MEX. AGR. EXP. STA, Described from the female.
About 3 mm. joint more than twice as long as the other long; yellow, wings hyaline. Head dull two combined, about twice as long as chrome yellow, ocelli black, eyes dull broad, pointed, hut with a small tooth purple; proboscis about twice as long as almost at the end, so as to appear bifurcate head; face with sparse fine whitish pube- or deeply emarginate; without bristles.
scence; antennae chrome yellow; third Thorax pale delicate greenish-yellow, with



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