1. A large number of hairs grow from the gaster, mesonotum, pronotum and propodeum . 2. The holotype has an overall body length of approximately with finely scattered setae on all parts except the notum and propodeum . 3. Unlike the other species, it has only one central hair on the front of its clypeus and its propodeum is rounded. 4. In profile " H . cerberus " has a mesonotum showing distinct metapleural glands and a propodeum which is rounded. 5. These include a prominent and projecting scutellum which, coupled with the metanotum and propodeum , form a vertical and flat thorax. 6. The basal area of the Propodeum , not slanting in profile, is only half of the length of the vertical posterior surface. 7. The related extinct halictid genus " Eickwortapis " has a longer basal area on the Propodeum and it does slant in profile. 8. In hymenopterans of the suborder Apocrita ( wasps, bees and ants ), it consists of the three abdominal segment ( the propodeum ). 9. At the front of the petiole there is a narrow attachment area to the propodeum , while the rear is flared into a large attachment to the gaster. 10. A lobe of the propodeum projects over the middle coxae . The propodeum has few ridges ( carinae ), and the face is described as goat-like.
