mandibular lobe spicule mandibular lobe spicules 5 A linearly-arranged group of spicules beginning dorsally at either the base of the labula or the mandibular lobe proper and extending either anteriorly along the base of the lobe or laterally onto the body of the mandible; often in the form of flattened simple filaments. Fig 47,49 Abbr: MLS5 in ISBN:0-937548-00-6. MP5 group of hairs TGMA:0001313 TGMA:0001313 default_namespace lateral dorsal cluster of hairs mandibular lobe setae 5 piliferous process hairs 5 simple filament