Aptilotella macta Luk & Marshall, sp. n.

Figures 348–351

Description. Habitus as in Aptilotella macula (Figs. 1, 58, 59). Body length 1.0 mm. Head ground color orange. Frons finely rugose, with four silvery spots visible from behind: one in each ocular emargination and a pair at sutural margin behind antennal insertions. Ocellar tubercle scarcely raised, with minute medial seta; ocellar bristle greater than the length of frons. Orbital bristle absent; orbital setulae inconspicuous, in three pairs. Interfrontal setae in two pairs. Face shining; gena finely rugose. Antenna yellow, distal half of first flagellomere brown. Scutum and scutellum black, with metallic sheen. Scutum uniformly, sparsely setose; posterior dorsocentral bristles as long as scutum. Scutellum bare; three times wider than long, 0.8 times the width of scutum; margins carinate. Scutellar bristles subequal in length and to the length of scutum. Pleuron black, weakly shining; upper anepisternum and anepimeron with pale pruinose stripe. Legs yellow ochre; mid and hind coxae black; tibia and tarsus light brown; mid tibia with two anterodorsal bristles. Wing rudiment black. Abdomen black, with metallic sheen; tergites setose, densely microtrichose; sternites finely microtrichose. Cercus and surstylus yellow.

Male terminalia. Sternite 5 (Fig. 351) lunate; posteromedial third asymmetrically dilated, the margin sinuate and flanked on the right by a patch of long setae. Synsternite 6+7 as in Figure 350. Cercus (Figs. 348, 349) stout, triangular, apically rounded; with scattered sensory setae and a long seta near basolateral corner; inner margin setulose. Surstylus (Figs. 348, 349) basally swollen and divergent, bending at a nearly right angle near midpoint and narrowing, then rounded and upwardly curved apically; base with many long setae and setulose. Aedeagus not dissected, but nearly identical to A. macula (Figs. 341–343).

Female terminalia. Female unknown, but probably comparable to A. macula.

Etymology. The specific epithet is the Latin macta, “honored,” because of the crown of spots on the frons.

Type material. Holotype ♂, CBFC. BOLIVIA: La Paz, Caranavi, ca. 10 km NW, road to ENTEL tower, 1700 m, 13.iv.2001, bamboo, dung pans, S.A. Marshall.

Paratype. BOLIVIA: La Paz, same label as holotype (♂, DEBU).

Comments. Aptilotella macta differs from its sister species in having four spots evenly spaced along the anterior margin of the frons, and a similarly curved but more slender surstyli that is narrowed in the distal half. The female of A. macta is unknown.