;"O. villosus sp. nov.";"O. tuberculata sp. nov." "Body length (mm)";13–16;">9–12 (fully mature larvae not available)" "Colour pattern";"greyish dark brown with distinctive light (yellowish) ornamentation";"yellowish-white, light brown to light dirty olivaceous, without marked ornamentation" "Compound eyes of male exceeding / not exceeding head margin laterally";"slightly exceeding";"unknown (fully mature male larvae not available)" "Basal setae on paraglossae";"sparse, slightly elongated, not arranged in rows";"sparse, slightly elongated, not arranged in rows" "Setae distally on segment I of labial palps";"approx. 15–25, short, hair-like";"more than 30, short, hair-like" "Hair-like setae proximally on posterior margin of middle- and hind femora";"dense and long, forming fringe along all length of femur";"dense and long, forming fringe, reaching 1/3–1/2 of femur length" "Submedial row of spine-like setae dorsally on fore tibiae";"irregular row of bristle-like setae in distal quarter";"3–4 setae arranged in irregular row subapically" "Presence of posterolateral projections on abdominal segments";II–IX;"(II) III–IX" "Shape of posterolateral projections of last abdominal segments";"bent outwards, apices slightly inwards";"nearly straight, slightly diverging from body axis" "Posteromedial setae on sterna III-IV";"some more than 20× longer than wide";"up to 10–15× longer than wide" "Size of first gill plate compared to remaining pairs";"markedly smaller";"significantly larger" "Setae on inner distal margin of gill plates II–VII";long;"slightly elongated" "Setae on ventral surface of gill plates near inner distal margin";present;absent Paracercus;"fully developed";vestigial