53 
I found dried remains of the same gall on a tree near Dumfries. 
Like the last galls they occur on the leaves, from the upper sur- 
_ face of which they arise as oval bodies, about 12 by 6 mm. in size, 
attached by a narrow neck to the leaf. The surface is smooth or 
‘furrowed longitudinally, and is yellowish green; the leaf around 
is spotted with yellowish red, and bears patches of hairs like an 
£rineum below. (V., 276.) 
POPULUS NIGRA L.:— 
On this plant I found at Birnie, near Elgin, galls the work of 
Aphides (Pemphigus bursarius L.), were found on the petioles 
as green, irregularily conical, naked, wrinkled growths, about 8-12 
by 58mm. in size; they open by an irregular fissure at the tip of 
the cone, giving access to a space surrounded by a fleshy wall. 
(V., 217). 
QUERCUS ROBUR L.:— 
In addition to the numerous oak-galls previously described by 
me, I have found in the valley of the Dee, in May, galls of 
Aphilothrix albopunctata Schl., a species already recorded as 
Scottish by Mr. Cameron. ‘They are sunk in the buds, projecting 
-only a little from among the bud scales; hence they are difficult 
‘to find. In June they fall to the ground. They are oval or 
ovate, and measure 5-6 by 3-4mm. Thesurface is naked, smooth, 
and green or brown with numerous short white streaks. The wall 
is rather thick, and shows an inner wall closely adherent to the 
‘softer outer wall. (VJ, 76.) 
FAGUS SYLVATICA L.:— 
In my former paper (I. c., f. 74-75), I described the galls on 
beech leaves that occur very commonly in many parts of the 
country, and assigned them to Hormomyia piligera on account of 
their form, like miniature rifle-bullets, though they do not bear the 
‘coating of hairs ascribed to the galls of that insect. I have since 
_ found galls that quite agree with the type of H. piligera H. Lw. at 
Forres and at Glamis. Those formerly described by me agree 
very well with Bremi’s description of his Cecid. tornatella, but he 
did not succeed in rearing the insects. It is doubtful whether his 
_ Species is really distinct from 7. piligera H. Lw. (VI, 256-7.) 
JUNCUS LAMPROCARPUS Ehrh.:— 
Frequently bears pseudo-galls of a Homopterous insect, called 
Livia Juncorum Latr. The buds at the tip of a stem, or on the 
