depression of thorax obconical. The anal appendages (Pl. I, fig. iv c) are stout, and each bear three thorn-like spines, which appear fairly constant. One is situate above the extreme tip; the other two are close together, situated lateral of the juncture of appendage and segment. Occasionally there is a conical spine upon the inner edge of the appendages, but it is not a constant feature. Antennæ small, rudimentary, joints indistinct. Legs, anterior pair comparatively small, intermediate and anterior pair conspicuous colour, deep brown.

gall (Pl. I, figs. i, ii, and iii), pendulous; elongated ellipsoidal; pedunculated, stalk generally curved; striated longitudinally; apex truncate; length, including stalk, 3 to 4 inches; greatest diameter, 5 to 6 lines; colour, reddish-brown and green intermingled. Female chamber tubular, following external lines of the gall; a long fine tube can be traced through the stalk to the heart-wood of the supporting twig. Walls parallel, fibrous and thin, about 1 line in thickness, with a dark-brown papery lining internally. coccus, unobserved.

gall, clavate, cylindrical; summit hollowed out; 6 to 8 lines long (Pl. I, fig. i a); only observed on twigs.

Larva bright goiden yellow, margin obtusely crenulated, spines alate and well developed.

This gall has been obtained upon several varieties of eucalypts in the neighbourhood of Sydney. It is very symmetrical, the stalk being chiefly selected by inquilines as shown in fig. ii, Pl. I. Birds are apparently fond of the insects, as I have found many specimens torn open and the inhabitant gone. B. pedunculata was once sent to the Department of Agriculture as an enemy to peach-trees; at any rate, the gall was said to have been obtained from such a tree. Our correspondent was asked to forward some twigs of the actual tree from which the gall was taken, and a neat bundle of peach-twigs was sent in return. The matter was, unfortunately, never settled satisfactorily.

Brachyscelis crispa, n. sp, (Olliff, M. S.), (Plate II, figs. i to iii g), coccus (Pl. II, fig. iii), light brownish-yellow, last two segments and appendages deep reddish-brown; globular, squat, abdomen tapering rapidly; length, 7 lines; breadth across thorax, 5 lines; clothed with hairy, tubular spines, which are plentiful and long upon the last three segments of the abdomen, and conspicuous upon the anal appendages. The body-wall punctuated with spinnerets, which, except under a high magnification, appear as broad, simple rings. (Pl. II, fig. iii a). The posterior margin of the first six abdominal segments is ornamented with somewhat slender, conical, thornlike spines, varying in number from six on the first segment to eighteen and fourteen upon the third and fourth. (Pl. II, fig. iii b). The "facial furrow" concave, short, forming the anterior edge of a four-sided hollow median of the meso-thorax, the other sides of which are also concave. The anal appendages (Pl. II, fig. iii c) are rather long, set somewhat apart at the base, roughly wrinkled, coated with long hairy spines; the apex of each point bears two truncate tubes. Antennæ comparatively large, three joints, basal and intermediate short, terminal as long as both others and surmounted by three spines. Legs stout; anterior pair, four joints, tibia and tarsus appearing as one: intermediate pair, four joints; posterior pair, basal joint broad, trocanthur and femur much dilated, tibia and tarsus appear as one joint, a dividing line can, however, be made out; mouth parts, small.

NOTE.-Throughout these descriptions the symbol has been used to signify male, and

? female.

? gall (Pl. II, fig. i) sessile; length, 8 to 12 lines; generally deflected, but often growing out laterally; spherical; summit truncate, depressed; conical apex of hard wood rising from bottom of depression. The outer portion of the gall is corky, broken into irregular wrinkles, and excresences which are often pyramidical. The inner walls are hard and solid, and in the form of the hard conical apex penetrate through the corky or bark-like layer at the summit. Female chamber (Pl. II, fig. i a.) irregularly balloon-shaped; width, 6 lines.

coccus, unobserved.

gall (Pl. II, fig. ii and iia) cylindrical, striated, truncate; summit dilated, rim obtusely crenate; colour, purple-brown; length, 3 lines. Scattered irregularly over leaves.

B. crispa resembles a cone-like fruit, and is common in the neighbourhood of Sydney. The specimens figured are sent to me by Mr. A. Rudder, Forest Ranger, Booral, N.S.W., whom I have to thank for many valuable specimens. The galls are usually blackened with fumagine, and attended by numbers of ants, two circumstances which point to the power of this species to secrete honey-dew.

coccus

Brachyscelis nux, n. sp. (Olliff, M.S.) (Pl. III, figs. i to iii). (Pl. III, fig ii), grey to pale yellow, last abdominal segment and appendages reddish-brown; globular; abdomen tapering rapidly; slightly coated with mealy secretion.

The body-wall is sparsely clothed with short hairy spines, and punctuated with comparatively few indistinct and floriform spinnerets (Pl. III, fig. ii a). First to sixth abdominal segments bearing dorsally slender conical tubular spines, about five upon the first, seven upon the sixth, and varying from eight to twelve upon the intermediate (Pl. III, fig. ii b). Facial furrow long, curved. Median depression of mesothorax transverse and narrow. Anal appendages (Pl. III, fig. ii c) rather long, distinctly tubular, clothed thickly with long hairs, slightly deflexed outwards, each bearing two tubular truncate points. Antennæ small; five rudimentary joints can be made out, the terminal bearing several spines. Legs slight and small; anterior pair, four-jointed, trocanthur and femur appearing as one, claws, simple; intermediate pair, three-jointed, claws blunt and rudimentary; posterior pair, three joints.

gall sessile, growing from either mid-rib or stalk of the leaves; small, length, 4 to 5 lines; breadth, 3 to 3 lines; cylindrical, constricted at base, dilated and widest in the middle, tapering towards the summit, which is truncate. Sides deeply ribbed longitudinally, the ribs running from base over the summit, finishing abruptly around the apical orifice. The colour of the gall is a dark violet, and contrasts strongly with the green of the leaves. Female chamber ovate; length, 3 lines; breadth, 2 lines; walls comparatively thick, line.

coccus (Pl. III, fig. iii), small fly-like animal, about inch in length; wings white and transparent; abdomen cylindrical and comparatively long, terminating in a stout style, and bearing two longish setæ. Colour, light yellow. Legs bearing two stout spines lateral of the underside of the tibia before its juncture with the tarsus.

galls small, cylindrical truncate tubes congregated together in a rough shallow saucer-like receptacle, which is attached upon the the side and near the summit of the female gall. Larvæ, typical.

These galls were obtained at Bungendore by Mr. A. M. Lea, Entomologist to the Bureau of Agriculture, W.A.

Brachyscelis Shraderi, n. sp. (Olliff, M.S.) (Pl. I, figs. vi to viii).