Facialia unarmed, rounded, divergent, but gradually convergent below.

Vibrissae approximated well above the oral margin, on a level with termini of ptilinal suture (fig. 1, e; fig. 2, i).

A row of strong and a divergent row of weak peristomal bristles (fig. 1, g and f).

Oral cavity moderately deep, narrowing anteriorly but widening posteriorly.

Clypeus an elongate plate, anteriorly extending over full width of oral cavity, but narrowing towards the rostrum.

Proboscis horny, slender, projecting forward, slightly longer than the head, geniculated; rostrum brown; haustellum with a few golden hairs at the tip, shiny, dark brown except for a proximal whitish patch (fig. 1, c).

Palpi dark tawny, slender, elongate, well developed, projecting beyond epistome, and bearing long, thin, stiff, black bristles (fig. 1).

Longitudinal axis of head, at insertion of antennae, equal to axis of oral margin.

Facio-peristomal profile angular.

Fig. 1—Head profile of M. Kumaraensis; X 12 times.

Antennae approximated; 1st joint reddish-brown, projecting almost at right angles to frontalia, and with a few short bristles projecting forward on distal margin (fig. 1, b); 2nd joint of same colour as preceding, about half as long as 3rd, bearing closely set short bristles on front edge and a row of smaller lateral ones; 3rd joint dull-piceous, reddish upon inner proximal margin, occupying about one-third of the length of facial profile.

Arista piceous, minutely pubescent, tapering beyond two-thirds of length towards distal extremity; 1st aristal joint short, 2nd elongate.

Lunula crescent-shaped, rounded, in colour shining reddish-brown.

Eyes dichoptic, with sparse microscopic hairs, and receding to about the level of the middle of the face.

Vertex wide, inner vertical bristles very long, post-ocellar bristles delicate and divergent.

Fig. 2—Front view of head of M. Kumaraensis; × 12 times.

Front conically projecting; ocelli separated; ocellar plate triangular, of moderate dimensions, with weak bristles; pre-ocellar bristles absent.

Frontalia reddish-brown, opaque, rectangular, narrowing towards the vertex, longitudinally corrugated for about two-thirds of the length from notched lunula (fig. 2, a, a).