Fig. 4 in Fig Wasps in Dominican Amber (Hymenoptera: Agaonidae)

Fig. 4. Camera lucida drawings of the protibiae of the two described species of Tetrapus, for comparison. a. External view of the left foreleg of Tetrapus delclosi Peñalver and Engel, new species (paratype: AMNH DR-11-3). b. Left protibia in external (upper) and internal views (below) of T. delclosi, new species (holotype: AMNH DR-14-576). c. Right protibia of T. apopnus Peñalver and Engel, new species (holotype: AMNH DR-14-282), in internal view. Compare the internal protibial apex with spines of the two species (arrows). All to the same scale.