Head capsule: pale, postoccipital margin somewhat darker, postoccipital plate pale, forming a broad triangle with a rounded anterior margin
Antennal pedestal: long, with short and sharp spur
Mentum: mentum teeth pigmented
Mandible: three inner teeth, one apical and one outer tooth
Premandible: bifid
Seta S3: simple
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| mentum | mandible | postoccipital plate | antennal pedestals | antenna |
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