The invention discloses a method for observing external genitals of female adult
Gynura without
dissection, and belongs to the technical field of
insect identification. The invention discloses a method for observing external genitals of female adult
Gynura without
dissection. The method comprises the following steps: firstly, preparing a 600-fold
diluent of 40% chlorantraniliprole
thiamethoxam water dispersible granules with water; immersing a living female adult
Gynura into the liquid
medicine for 1-3 minutes, then taking out the female adult, and standing for 0-4 hours until the external genitals of the female adult are completely exposed; then transferring the female adults with exposed external genitals into a centrifugal tube filled with absolute ethyl
alcohol to be soaked for 2 minutes; and finally, taking out the
imago, and observing the exposed
external genitalia structure under a
microscope. The method disclosed by the invention is simple and convenient to operate, an
identification technology, namely genital
microdissection, which can be mastered by only a few professionals is avoided, and an almost perfect female adult external genital form is obtained, so that an identification threshold is remarkably reduced.