VENOM APPARATUS OF TRYPOXYLON POLITUM SAY (HYMENOPTERA: SPHECIDAE)

The venom apparatus of Trypoxylon politum Say is very similar to that of the smaller Trypoxylon clavatum clavatum Say. The venom apparatus has paired filamentous venom glands and a poorly defined convoluted gland. The furcula is large and receives an extensive muscle supply from the oblong plate. Lancet valves are large and fill the sting bulb chamber. Gonoplacs are distinctly bilobed. The sting is strongly descendent.