Top 18 Most Common Insects in Cairo

D. chrysippus is a medium-sized butterfly with a wingspan of about 7–8 cm (2.8–3.1 in). The body is black with many white spots. The wings are orange, the upperside brighter and richer than the underside. The apical half of the forewing is black with a white band. The hindwing has three black spots in the center. The wings are bordered in black and outlined with semicircular white spots. This species exhibits slight sexual dimorphism, as the Male has large scent glands on his hindwings, which the female lacks. They appear as a large black spot with a white centre if viewed from the underside D. chrysippus is a polymorphic species, so the exact coloring and patterning vary within and between populations. It is similar in appearance to the Indian fritillary (Argynnis hyperbius), which may coexist with it.

The mediterranean fruit fly (Ceratitis capitata) is a strong fly that can survive in a variety of different climates. This is incredibly concerning, as these flies are widely regarded as one of the most destructive fruit flies in the world. Their removal can cost a great deal of money but can cause much lower crop yield if not addressed. 

Selysiothemis nigra, the black pennant, is a monotypic species of dragonfly in the family Libellulidae. It occurs in Central Asia and the Middle East. In Europe it is mostly confined to the coastal areas of the Mediterranean and the Black Sea.

The silver y (Autographa gamma) has an interesting name that comes from the silver, y-shaped patterns on each of its wings. Patterns on those wings also provide for decent camouflage. Its colors can be different depending on the local climate. You may catch them in your garden given their love of taking nectar from flowers.

The two-spotted spider mite is a pest insect in the United States, even in colder climates where it invades greenhouses. The insect is often found underneath plant leaves, where it uses its needle-like mouth to pierce the foliage. The insect can also damage flowers. It spins a fine web as its feeds, aiding the plant damage.

The wingspan is 3.5 - 4.5 cm. Its head, collar and the vertex of its head are reddish orange. Tegulae and forewings pale reddish brown. The forewings are extensively covered with a metallic golden shimmering surface. Only the costal field and hem are brown. Sub-basal, antemedial and postmedial waved lines very indistinct, fine and whitish in colour. The sub-marginal line irregularly lunulate. The reniform and orbicular tain are small and white bordered. The unpatterned hindwings are grey brown, somewhat darker at the margin. The thorax is furry and with some hair tufts, the proboscis is well developed. Larva bluish green with a few short dorsal hairs. There are slender dorsal white lines and a prominent lateral line.

The brown Widow (Latrodectus geometricus) is a lighter color with an orange hourglass shape on its abdomen, different from the black widow. They are known as "cobweb spiders" because they have an odd way of making webbing. Brown Widows have a toxic bite which is weaker in the males. It is said that brown Widows regularly fight for territory against black widows.

This species is similar to the European A. atropos but differs in having two medial bands on the underside of the forewing, instead of one, and usually no dark bands across the ventral surface of the abdomen. The skull-like marking is darker and there is a faint blue tornal dot enclosed by a black submarginal band on the hindwing upperside. The forewing discal spot (stigma) is orange; in A. atropos it is usually white. Head brown; thorax dark blue-grey, with black lateral lines which meet behind; the center of the thorax occupied by a fulvous skull-mark with two black eyes; abdomen yellow, with blackish segmental bands and a blue-grey stripe down the vertex. Fore wing mottled with various shades of brown, fulvous and grey; three indistinct antemedial lines; a pale spot in the end of cell; two lunulate curved postmedial lines. Hind wing yellow with a postmedial black band not reaching the costa or anal angle; a similar submarginal maculate band. Differes from A. atropos in having two medial bands on the underside of the fore wing instead of one, and no bands on the underside of abdomen. Larva green, with oblique lateral yellow streaks on somites 4-10.