This experiment is from the official website of Human Parasitology of Shandong University
Operation method
Morphological observation experiments of Culex pipiens Move 1. Head: subglobular. Pair of compound eyes, located on both sides of the head, dark in color. A pair of antennae, whip-like, extending out to the sides, 15 segments in total, each segment with whorls of hairs, the male hairs are long and dense, the female hairs are sparse, is an important feature to distinguish between the two sexes. One rostrum, located at the front and lower part of the head, consisting of one each of the upper and lower lips and tongue, and one pair each of the upper and lower palpi, with two labials at the end of the lower lip. A pair of palatine whiskers (antennae), located on both sides of the rostrum, very short in females, only 1/5 of the rostrum length; males tend to be longer than the rostrum, with hairs on them. For more product details, please visit Aladdin Scientific website.
2. Thorax: It consists of anterior, middle and posterior thoracic segments, with the mesothorax being particularly well developed, and the mesothoracic shield having taxonomic significance. The ventral sides of the pro-, meso- and post-thorax each have a pair of feet, each including a basal, transverse, femoral, tibial and tarsal segment, of which the tarsus is divided into five segments, and the fifth tarsus terminates in a pair of claws and claw pads. The mesothorax has a pair of wings, narrow and long, with six longitudinal veins in addition to the anterior and subanterior marginal veins. The second, fourth, and fifth of these are forked, and the order of the veins is 1; 2.1, 2.2; 3; 4.1, 4.2; 5.1, 5.2; 6. That is to say, 1, 3, and 6 are not forked; and 2, 4, and 5 are each divided into two branches. On the posterior margin of the wings there are long scales called marginal coma. Posterior thorax with a pair of balancing rods.
3. Abdomen; divided into 11 segments, segments 8-11 becoming external genitalia, segments 1-7 with a dorsal plate and a ventral plate. The dorsal plates of abdominal segments sometimes have transverse bands formed by pale scales, called pale bands or white bands, which are taxonomic features. segments 1-7 have a valve between the dorsal and ventral plates on each side. The female mosquito has a pair of caudal whiskers at the caudal end. The male genitalia are complex, and their morphology varies according to mosquito species. For the identification of mosquito species is an important basis. (See Figure 1) 
