Megaselia punctifrons Borgmeier 1969

Megaselia (Aphiochaeta) punctifrons

FEMALE.—Length with the terminal segments partly protruding 1.75 mm. Head width 0.48 mm. Frons convex, subquadrate, width 0.26 mm, deep black, distinctly shining, with scattered coarse piligerous punctures and a fine median furrow. Two thin supraantennals close together (about one-seventh of frontal width apart and more approximate than the preocellars). Antials reclinate, placed on anterior border, closer to supraantennals than to anterolaterals which are distinctly higher. Second row slightly concave. Eyes large. One strong bristle on lower corner of eye; cheeks with 4 hairs. Third antennal joint orange, somewhat oval, of normal size. Arista brown, one-fifth longer than width of frons, distinctly pubescent. Palpi yellow, partly withdrawn into the mouth opening, with about 5 bristles (the apical is the longest). Proboscis short.

Thorax black or brownish black, distinctly shining, pleura glossy. Mesopleura with hairs and one moderately long bristle behind (length 0.169 mm). Scutellum with 2 bristles (length 0.195 mm) and 2 minute hairs.

Abdomen black, venter enclosed. Tergites reaching sides, 2–5 subequal, glossy laterally, somewhat pruinose dorsally, 6th entirely glossy. Pubescence scarce, short. End-segments fleshy, 7th with a narrow tergal plate and a circle of delicate hairs. Cerci small.

Legs black brown, forelegs paler. Foretarsus slender. Foretibia with a dorsal row of short setulae. Posterodorsal setulae on midtibia distinct. Hind femur broad, no ventral fringe on basal half. Hind tibia with about 7 distinct setulae, the upper short, those on lower half strong and widely placed.

Wing (Figure 24) grayish brown, veins dark brown. Length 1.55 mm, width 0.62 mm. Costa 0.53 of wing length, ratio of segments 15:10:4. Cilia short, closely placed. First vein nearly straight; 4th gently curved on basal 3rd, base obsolete, apex faintly deflected; 6th slightly sinuous. Axilliary margin with 2 hairs. Halteres black.

MATERIAL EXAMINED.—Holotype female (USNM 70242), Dominica, S. Chiltern Est., 2 Feb. 1965 (W. W. Wirth).

Megaselia punctifrons adolah lalek dari famili Phoridae. Spesies ko juo marupokan bagian dari ordo Diptera, kelas Insecta, filum Arthropoda, dan kingdom Animalia.

Lalek ko biasonyo panjangnyo sekitar 0,5–6 mm (1⁄64–1⁄4 in).