Character;Mean;Range "Head length to tip of mandibles";2.12;1.95–2.25 "Head length to postclypeus";1.42;1.30–1.50 "Head width, maximum";1.11;0.95–1.20 "Antennal carinae, outside span";1.08;0.98–1.18 "Span of dorsal horns";0.82;0.72–0.95 "Span of frontal horns";0.89;0.82–0.98 "Labrum, maximum width";0.25;0.21–0.32 "Pronotum, maximum width";1.11;0.98–1.19 "Pronotum, maximum length";0.82;0.70–0.93 "Left mandible length to ventral condyle";1.00;0.88–1.10 "Postmentum, maximum width";0.37;0.33–0.40 "Postmentum, minimum width";0.22;0.18–0.26 "Postmentum, length in middle";0.57;0.50–0.68 "Head height, excluding postmentum";0.88;0.77–0.96 "Third antennal article length";0.13;0.09–0.18 "Number of antennal articles";10.58;9–12