Top 20 Most Common Insects in Palayan City

Diplacodes trivialis is small dragonfly with bluish eyes and greenish-yellow or olivaceous thorax and abdomen with black marks. In very old adults, the whole thorax and abdomen become uniform pruinosed blue. Clear wings, without apical or basal markings, and the creamy white anal appendages and deep pruinescence in adults help to distinguish this species from others in its genus.

The wingspan is about 30 mm. Adults have translucent whitish wings with broad dark brown borders. The body is whitish below, and brown on top of head and thorax as well as the end of the abdomen. There is a tuft of light brown "hairs" on the tip of the abdomen, vestigial in the male but well developed in the female. It is formed by long scales which are carried in a pocket on each side of the 7th abdominal segment, from where they can be everted to form the tufts. Unfertilized females are often seen sitting around with the tuft fully spread, forming two flower-like clumps of scales, which move slowly to spread their pheromones. These have been identified as consisting mainly of (E,E)-10,12-hexadecadienal and (E)-11-hexadecenal. From its closest relatives, the cucumber moth is most reliably distinguished by microscopic examination of the genitals. In the male, the clasper's harpe is twice as long as it is wide, with the costa and sacculus running almost in parallel and being strongly sclerotized, and a rounded cucullus. From the center of the harpe, which is otherwise only weakly sclerotized, a thin spine extends. The uncus is covered in bristles and ends in a small tube; it is a bit longer than the tegumen which in turn is about as wide as it is long. The vinculum is almost quadratic, and the anellus forms a small triangular plate which is more strongly sclerotized. The aedeagus is almost straight, strongly sclerotized below, and has a flattened curved process at end. In the female genitals, the ostium is transverse and oval, and the antrum broadly sclerotized. The ductus seminalis insert from above, a bit before the forward edge of the antrum. The bursa copulatrix is long and slim, with the forward third particularly narrow; its wall is covered with many short spines, and the hind end almost seamlessly merges into a short and barely distinguishable ductus bursae.

The brown dog tick is a global parasite and can survive a wide range of temperatures. These ticks are mostly found on the ears, heads, and paws of dogs and can transmit diseases like canine ehrlichiosis and canine babesiosis. If there is no viable host, then the brown dog tick may attach to other mammals, such as rodents, deer, and humans.

The Senegal Pechlibelle (Ischnura senegalensis) is a dragonfly from the family of the slender dragonflies (Coenagrionidae).

Sexes show dimorphism with variable colour morphs. The wingspan of the female is about 46–54 mm, whereas the male's is about 30–40 mm. The adult male has two morphs. The common form is smoke brown with uniformly brown forewings and pale greyish hindwings. In the forewing, black specks and a pale patch outside the subbasal line can be seen. The adult female also has two forms with an areole on each forewing and they lack the white colored portions on forewings which is found on male. The common form has an irregular longitudinal dark brown zone in the center of forewing. The more rare form has pale colours. The underside of the wings are similar in both sexes with less pronounced markings. The full-grown caterpillar is 38–44 mm long. It is hairy with four white or brown dorsal tussocks. It is greyish brown with a crimson-reddish head, legs and prolegs. Head with red stripes found on full-grown caterpillar. Pupation occurs inside a silk cocoon spun between the leaves of the food plant.

The species is on the IUCN Red List as not endangered, assessment year 2011, the trend of the population is increasing according to the IUCN.

The longhorn Crazy Ant (Paratrechina longicornis) has earned its name through two interesting features. First, the "longhorn" part of their name comes from the 12-segmented antennae, which is incredibly long. The "crazy" part of its name comes from its rebellious nature to move in erratic patterns. Other ants tend to stay in more orderly patterns.

The adult butterfly has a wingspan of 5 - 6 cm,and exhibits seasonal polyphenism. "Upperside rich orange-yellow. Fore wing with a pale dusky and a much darker short transverse bar with lateral jet-black marginal lines across cell, another somewhat similar bar defining the discocellulars; costal margin, an inner and an outer subterminal line, and a terminal line dusky black; a large minutely white-centred ocellus with an inner slender and outer black ring on disc in interspace 2; two similar but smaller geminate subapical ocelli with an obscure pale spot above them and a short oblique bar connecting them to the black on the costa. Hind wing: a small minutely white-centred and very slenderly black-ringed discal ocellus in interspace 2, with a very much larger pale yellow and black-ringed ocellus above it spreading over interspaces 4, 5 and 6, the centre of this ocellus inwardly brownish orange, outwardly bluish black, with two minute white spots in vertical order between the two colours; finally postdiscal subterminal and terminal black sinuous lines. "Underside ochraceous brown, very variable. In most specimens the cell of the fore wing is crossed by three dark sinuous bands, the outermost along the discocellulars; these are very faint in some; both fore and hind wings crossed by a basal and a discal pale sinuous line, the latter margined outwardly by a dark shade, which is traversed by an obscure somewhat obsolescent row of dark spots, and outwardly bounded by a subterminal sinuous line, the dark shade in many cases spreading on the fore wing to the terminal edge of the wing; on the hind wing the subterminal line meets the discal in an acute angle at the tornus. Antennae dark brown; head, thorax and abdomen more or less orange-brown; paler beneath." "Upperside similar, the black markings deeper in colour and heavier, the subterminal and terminal lines more clearly defined. "Underside pale ochraceous. Fore wing: cell crossed by live short sinuous dark brown lines, a similar line on the discocellulars and another beyond it, both bent inwards at an angle and continued to the dorsum, the space between them forming a discal broad fascia, which pales to whitish posteriorly; the postdiscal ocelli, subterminal and terminal lines as on the upperside but paler. Hind wing: a slender transverse subbasal dark line, a discal whitish straight fascia in continuation of the one on the fore wing; the postdiscal ocelli, the subterminal and terminal lines much as on the upperside but paler; the anterior ocellus with a double iris and centre. Antennae dark brown; head, thorax and abdomen slightly darker than in the dry-season form.