Neosilba pseudobifida  

Head oval, wider than high. Irons with parallel sides, with a cluster of 5 inter-frontal setae right above lunule, at each side of lunule. 1 seta above each supra-orbital bristle; lunule with 10 prominent setae. Antenna usual to genus, arista longei than first flagell omere and pubescent; width similar to first flagellomere, a cluster of 4 setae aligned inferior to frontal suture; 2 setae close to oral margin Palpus large and broad with 1 marginal seta close to its apex. Thorax: Katepisternum with 2 prominent bristles and many setae anterior to the bristles. Anepisternum with 5 prominent posterior bristles dorso-ventrally aligned and 4 prominent anteriorsuperior bristles aligned dorso-ventrally; several small sparsed setae. Scutellum with 2 apical bristles and 2 prominent lateral-marginal bristles, 3 marginal setae at each side and 2 apical marginal setae between apical bristles. Prosternum bare. Wings white with dark-yellowish veins, calypteres white with white fringes and a cluster of 8 black long setae at fold Abdomen: Last tergite twice larger than others,
with a cluster of bristles at end, resembles N glaberrma. Male genitalia: Epandrmm longer than wide (3:1) in ventral view, completely covering surstylus in
lateral view, with long setae in the posterior lobe reaching a little beyond cerci in lateral view (Fig. 20). Surstylus with a row of 6 prensisetae at each side; setae in vential margin of surstylus short and thick (Fig. 21). Aedeagus slender after the "C" shaped base reaching beyond prensisetae There is a spicule-like projection in the aedeagus
after the "C" shaped base slightly left bent, similar to N bifida Strikis & Prado.