Larval mouthparts of C. (Lobochironomus) ?nr. austini
a. Antenna; b. Pecten epipharyngis - note small teeth interspersed between the normal teeth;
c. Premandible - note outer tooth relatively wide (about two thirds that of inner tooth) and almost as long;
d. Mentum - note c2 teeth relatively well separated from c1, 4th laterals only slightly reduced;
e. Ventromentum; f. Mandible - note 3rd inner tooth hardly defined and pale (type I).

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