Wasps and bees on the other hand are known as predators and other insectivorous. From the shape of its body structure, wasps are slim and flat with a shiny appearance.
a wasp is not just a head shape. The picture above shows a rampin-shaped wasp ... but it's important to remember that the wasps are shiny.
Wasps have a sting found at the tip of his abdomen . Only female wasps have a sting, while males do not have a sting. Wasp sting is actually some sort of channels connected to the gland can . Wasps use their sting to paralyze their victims and defend themselves. The wasp's sting is jagged so that the wasp can use its sting to sting repeatedly without worrying that the sting will stick and cannot be revoked. Wasp stings themselves, although they cause pain are usually not dangerous to humans, but in some people who have allergies to wasp poisons, stings caused by wasps can be fatal. [1] Some types of wasps have a sting that is modified into an egg conduit called an ovipositor. The wasp can use the sting to lay eggs because the sting tube is also connected to the egg sac. The size of the ovipositor itself varies and in some types of wasps, the ovipositor can be longer than the body. Ovipositor in some wasps such as ikneumon wasps are so strong because they are known to penetrate even wood layers . [6] Wikipedia
The body of the fly is usually short and slender, and has adapted to air movement. The first tagma of the fly, head, consists of ocelli , antennae , compound eyes , and parts of the mouth (labrum, labium, mandible, and maxilla). The second tagma, the thorax, holds the wings and has flight muscles in the second segment, which are enlarged. The first and third segments are smaller. In the third section of the thorax there is a dumbbell, which helps balance flies during flight. Further adaptations for flight are the reduction in the number of nerve ganglions and the concentration of nerve tissue in the thorax, a characteristic that is most different in the Muscomorpha infraordo . [4] The fly has a head that can move with the eyes and most have large compound eyes on the left and right sides of the head, with three small ocelli on it. For controlling the direction of view, the optical range is analyzed by a group of neurons that are sensitive to movement. [5] one part of these neurons is thought to be used to estimate the parameters of the movement itself, such as sloping, rolling, and turning. [6] Other neurons are thought to be used to analyze the visual material itself, such as identifying the shape of a figure on the ground using motion parallax. [7] [8] The shape of the antenna varies, but it is often short to reduce the load when flying. source
according to the understanding that I read. and every research that has been done then still has a chance to be investigated again ... all research can never be stopped, for the sake of the validity of the data.
legitimate differences occur in the opinion, and therefore the opportunity to be investigated again on an object of research remains.
I do not deny the other opinion is wrong. therefore I really appreciate all about science. Thank you 
RE: Wasp Ndas Sucking The Crown Of Tridax Procumben