a. Pecten epipharyngis with some smaller teeth; b. Antenna; c. Mentum with 4th laterals slightly reduced (type I-II);
d. Ventromentum with about 45 closely spaced striae; e. Mandible with the 3rd inner tooth of type IIB,
Based on North American specimens
a. Pecten epipharyngis with some smaller teeth; b. Antenna; c. Mentum with 4th laterals slightly reduced (type I-II);
d. Ventromentum with about 45 closely spaced striae; e. Mandible with the 3rd inner tooth of type IIB,
