fifth of proboscis; basal joint almost black in some specimens. Antennae dark brown, almost black. Eyes deep purplish-black: strong black bristles around margins.

Thorax dark brown, covered with golden-yellow scales arranged in longitudinal rows; numerous black bristles about the median and marginal areas. Scutellum light brown, narrow curved scales and 8 border bristles. Metanotum dark brown. Pleura dark brown.

Pleural pilotaxy (Fig. 27) as follows: Protergum carrying 3 to 8 pronotal bristles. Pro-episternum has three prosternal bristles. Pro-epimeron carries 2 to 4 (usually 3) strong pro-epimeral bristles covering and guarding the first spiracle; numerous golden sickle-shaped hairs anterior to these. Spiracular area bare. Mesepisternum carries 3 to 6 pre-alar bristles, 6 to 10 sternopleural bristles on the posterior margin arranged vertically. Many white scales are present

Fig. 26.—Palpus of ♀
Fig. 27.—Pleural pilotaxy of C. pervigilans.
Fig. 28.—Unguis of ♀.

on the area between the pre-alar and sternopleural bristles. Mesepimeron has 4 upper mesepirmeral bristles covering and guarding second spiracle; below these is a patch of white scales; one lower mesepimeral bristle. Coxa pale brown, with black bristles and odd white scales.

Legs dark brown, in parts almost black, heavily scaled and bristled. Femur dark brown dorsally, light brown ventrally, bristled, knee spot almost white. Tibia with pale knee joint, more heavily bristled than femora and slightly longer. Tarsus darker brown than the other joints. Ungues equal, simple, much curved, but showing a strong raised swelling basally. (Fig. 28).

Wings (Fig. 29) 4.5 mm. in length; when folded back longer than abdomen; densely clothed along the veins with brown scales.

Cell R.2 (first marginal cell) longer and narrower than cell M.2 (second posterior cell), its base more proximal than the base of the latter, its stem short, almost one-fifth the length of cell, shorter than stem of M.2, which is a little more than one-third the length of cell. Supernumerary and mid cross veins slightly separate, about half their own length away from each other. Posterior cross vein longer

Fig. 29.—Wing of C. pervigilans.
Fig. 30.—Lateral scale of wing vein.
Fig. 31.—Median vein scale.
Fig. 32.—Fringe scale of wing.

than mid cross vein and twice its own length distant proximally from it. Lateral scales (Fig. 30) of medium width, tapered distally; median scales (Fig. 31) broader, rounded distally; fringe scales (Fig. 32) scimitar-shaped. Halteres with light brown stem, knob darker in colour and a black patch on each side. Length 5.6 mm.

Male: Antennae lighter in colour than in female; the penultimate and antepenultimate joints longer, hairs brown in colour. Proboscis darker than in female, sometimes pale in centre. Palpi much longer than proboscis, last two joints with stiff black hairs.

Hypopygium (Fig. 33) large and composed of many appendages, the dorsal surface of the sub-apical lobe covered with numerous strong bristles pointing out to external border. The sub-apical lobe has a leaf-like appendage lying across from internal border to external border; it overlies the base of a strong stiff curved bristle which springs from the inner margin of the sub-apical lobe and points upwards and outwards. On the external border of this lobe are three chitinous tapered appendages turned backwards towards the phallosome. The claspers are long, “goose-necked,” and carry a narrow pointed claspette. Harpago and harpaginal fold can be seen by reference to the figure. Ungues of male fore-leg (Fig. 34) unequal, curved, proximally there is a small acute recurved spur; at the middle length is a longer blunt appendage. The fifth tarsal joint is heavily bristled and scaled; its base is expanded to form a strongly curved and acutely pointed projection.