<prompt> Kallu, a 30-year-old man, presented with subcutaneous itchy nodules over the left iliac crest. On examination they are firm, non tender and mobile. Skin scraping contains microfilaria and adult worms of:Loa LoaOnchocerca volvulusBrugia malayiMansonella perstans  <response>: Ans. is b i.e., Onchocerca VolvulusRef: Harrison, 18the, p. 1748; 19the, p. 1421 Subcutaneous itchy nodules over the left illiac crest, Skin scrapings containing microfilaria and adult worms confirms the diagnosis of Onchocerca volvulus. 