a. Pecten epipharyngis. b. Premandible with moderately sharp, broad teeth, with relatively long, narrow basal segment.
c. Basal segment of Antenna d. Mentum of type II and trifid centre tooth of type III. e. Ventromentum, about 3.7 times wider than deep
with over 40 closely spaced striae. f. Mandible of type IIIB and with MTR of 0.33.