Limnophora exigua (Wiedemann)

(Figs 2A‒C, 12A, B)

Limnophora plumiseta Stein; Emden 1958: 6 (Cape Verde Is.).

Limnophora exigua (Wiedemann); Pont 1980: 748.

Material examined. [NHMD]: Only extralimital specimens seen from the Philippines (Oriental), Kenya and Tanzania (Afrotropical).

Diagnosis. Very small, wing length 2.7‒3.4mm. Male: See Couri & Pont (2020: 7, figs 41‒43) for habitus im- ages. Arista short-plumose, longest branches 0.5‒0.75 times as wide as postpedicel. Frons broad, subshining black on large frontal triangle and upper part of fronto-orbital plates, silvery pruinose on lower part of fronto-orbital plates and on parafacial plates. Fronto-orbital plate with 2 orbital and 4 frontal setae. Frons and facial margin equally produced. Mesonotum grey pruinose with broad band behind the suture and all scutellum brownish black. Dorsocentral setae 4 unequal behind the suture; acrostichal field with setulae only, arranged in 4 presutural rows and up to 8 rows behind the suture. Mid femur with 2 subapical pd setae, without pv setae; mid tibia with 2 pd setae situated above and below middle. Hind femur with 2 av setae on subapical part; pv setae absent. Male tergite VI fused together with prehypopygeal sclerite. Sternite I bare. Sternite V and hypopygium as in Figs 2A‒C. Female: Very similar to the male. Ovipositor (Figs 12A, B) short and thick; tergite VIII with a pair of dorsal hind marginal setulae. See Table 1 for more ovipositor characters.

Distribution. Cape Verde Islands: Santo Antão, São Vicente, São Nicolau, Santiago [São Tiago], Brava. Widely distributed in the Old World tropics.