Top 20 Most Common Insects in Morgan Hill

The anise swallowtail (Papilio zelicaon) is often confused with the Tiger swallowtail. They are differentiated by being smaller in size and lacking the stripping patterns. They like flat plains or hills and are often seen hanging around the vacant lots of towns.

Male flame skimmers are known for their entirely red or dark orange body, this includes eyes, legs, and even wing veins. Females are usually a medium or darker brown with some thin, yellow markings. This particular type of skimmer varies in size but is generally measured somewhere between 5 cm and 8 cm long. These naiads are known for being rather large and chubby-looking due to their rounded abdomen. They are covered with hair but, unlike most young dragonflies, they lack hooks or spines.

The common Pill-Bug is a nocturnal woodlouse species that's fairly popular among hobbyists and sometimes kept as a pet. When disturbed, this small bug rolls into a ball, resembling a pill or armadillo, hence both its Latin and common English names. Compared to other Armadillidium species, this one is able to withstand drought more than any other.

It is a large, brightly colored and active butterfly, rarely seen at rest; its wingspan is 8 - 10 cm, and its wings are yellow with black stripes, and it has blue and orange spots near its tail. It has the "tails" on the hindwings that are often found in swallowtails. The eggs are deep green, shiny, and spherical. Young caterpillars resemble bird droppings, and as they molt, they eventually turn bright green, with a pair of large yellow eyespots with black and blue pupils. The caterpillars molt five times, eventually reaching a length up to 5 cm before pupating.

Often confused for the ladybug, multicolored asian ladybeetle (Harmonia axyridis) is a separate species that, unlike the ladybug, is a household pest. It is considered particularly annoying for its habit of returning to places from which it is removed. One of the most variable species in the world, there are many different colors and patterns multicolored asian ladybeetle may display, making identification potentially difficult.

The winter Ant (Prenolepis imparis), also called the "winter ant", is most active during cool weather. While other pests are inactive, this ant comes out to forage, and it's aggressive toward any bugs that get in its way. This species' nests are found deep in the ground, oftentimes deeper than the height of a human.

The red cone gall wasp (Andricus kingi) is named so because of the larval feeding process. The female will lay their eggs on trees, where they will hatch and begin eating the leaf. The leaf attempts to produce hard tissue (called galls) to prevent them from beating eaten, which provides more food for the wasp. These hardened structures will form as red cones around the wasp, which is an intriguing sight.

The fiery skipper (Hylephila phyleus) is a butterfly of the family Hesperiidae and is approximately 1 inch (2.5 cm) long. The males are orange or yellow with black spots while the females are dark brown with orange or yellow spots. The caterpillars are greenish pink with a black head. The caterpillars are often considered pests and can feed on Bermudagrass, creeping bentgrass, and St. Augustine grass. Fiery skippers, along with all other species of skippers and skipperlings, can hold their wings in a "triangle" shape. The forewings are held upright, and the hindwings are folded flat. This position is thought to better absorb the sun's rays. The fiery skipper lives in North and South America, from Canada to Argentina. It is a migratory species.

The western box elder bug (Boisea rubrolineata) is most recognized by the annoyance it causes during the fall, as it has a tendency to invade homes in search of warmer protection. It has a prominent red border against a dark body that makes it easily identifiable. Other than this, they are a fairly harmless insect which may only damage some commercial fruits occasionally.