Limnophora quadristriata Emden, 1951 : 390

Couri, Márcia & Pont, Adrian, 2017, Afrotropical Limnophora Robineau-Desvoidy (Diptera, Muscidae) with the description of four new species, Zootaxa 4216 (6), pp. 501-536 : 525

Limnophora quadristriata Emden, 1951: 390 & 702.

( Figs 89–91 )

Holotype male seen; right fore and right hind legs missing.

Diagnosis. Small species (2.1–2.7 mm); general colour brown with grey pollinosity, scutum with 4 brown vittae; scutellum uniformly brown; frons brown; fronto-orbital plate, face and parafacial grey pollinose; antenna, arista and palpus brown; haltere yellow; legs brown; male dichoptic; 2 orbital setae directed backwards and outwards; frontal triangle short; head angular in profile (as in Atherigona Rondani ) with a very long postpedicel, arista with short hairs; acrostichal setulae in 2 rows before suture and 4–5 rows after suture; postsutural dorsocentrals 3, the two first shorter than the posterior one; scutellum with long basal and apical pairs of setae; lower katepisternal inserted closer to the long posterior one; lower calypter about twice the length of the upper one; fore tibia without a submedian seta; mid femur with 1 posterior preapical seta; mid tibia with 1 posterior seta; male with the first two mid tarsomeres creamy-yellow and greatly elongated; sternite 1 bare; sternite 5 as in Fig. 89 .

Terminalia. Cercal plate and surstylus as in Figs 89–90 . Aedeagal complex as in Fig. 91 .

Notes. The description of L. quadristriata was based on two females, both specimens with the head missing, but was complemented on pages 702–703 ( Emden 1951) with the description of the male, based on additional material collected in Liberia in 1943 by F.M. Snyder. This enabled the head to be described, and Snyder’s male was designated as the holotype. The species can be easily recognized by the striking angular head (in profile) with a very long postpedicel and by the creamy-yellow and greatly elongated first two tarsomeres of the mid leg. One male dissected and illustrated.

Figures

FIGURES 89 – 103. Sternite 5; cercal plate and surstyli in dorsal view (not figured for L. quadristriata); epandrium, cercal plate and surstyli in lateral view; aedeagus in lateral view: 89 – 91. Limnophora quadristriata Emden. 92 – 95. Limnophora sinuosa sp. nov. 96 – 99. Limnophora somereni Emden. 100 – 103. Limnophora spinata Stein.