Neosilba paramerolatus nsp. may be part of N certa complex, but is easily
distinguished by examining the male genitalia.
Head oval, frons longer than wide, narrows toward lunule; 6 inter-frontal setae above lunule larger than others, 1 seta above supra-orbital bristles. Ocellar, supia-oibital and inner-vertical bristles similar in size, outer vertical bristles smaller. Lunule with 6 setae 3 at each side; antenna usual to genus, arista pubescent and longer than first flagellomere. Gena width similar to first flagellomere width. Palpus large and broad with one prominent seta close to apical region; 3 larger setae at oral margin and a row of 3 setae at the base of frontal suture. Thorax: Anepisternum with 6 prominent equally spaced posterior bristles dorso-ventrally aligned; a dorso-ventral row of 5 anterior-superioi bristles, many prominent setae between these rows of bristles and under it. Katepistemum with 2 prominent bristles and a row of anterior-superiorsetae similar in size of anepisternum setae, other
bristles small. Episternum and epimeron with one bristle each, episternum bristle larger. Scutellum with 4 lateral-marginal setae at each side, 2 apical-marginal setae between 2 apical-marginal bristles; 2 basal-lateral bristles. Prosternum bare Wings almost hyaline with pale brownish veins and microtrichia; calypteres white with white fringes and a cluster of 7 black long setae at fold.
Male genitalia: Epandrium slightly longer than wide, with fine long setae in ventral margin covering surstylus in its ventral-posterior portion in ventral view Margin of surstylus, in ventral view, with short and thick setae (Fig. 22); 9 prensisetae at each side of surstylus, 2 posterior ones perpendicular to aedeagus and other 7 anterior ones parallel to aedeagus. Aedeagus thick at base and slender after the "C" shaped base, in this region the aedeagus presents thin and dense (Fig. 23), aedeagus ends before prensisetae
Paramere large, with fine setulae in posterior inner margin. The size of paramere in relation to other structures is unusual to genus