Top 20 Most Common Insects in Timor-Leste

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

The species is on the IUCN Red List as not endangered, year of assessment 2009.

The species is on the IUCN Red List as not endangered, year of assessment 2009. The slender bank dragonfly occurs from Southeastern Europe and North Africa to Japan and Australia

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.

It is a medium-sized damselfly with the male have an abdomen length 32 to 35 mm compared to the similar looking species, Lestes dorothea having an abdomen length 36–40 mm. Its head is black and matured males have deep sapphire-blue eyes as in L. dorothea. Its thorax is black, pruinosed white laterally, yellowish beneath. The dorsum of the thorax is marked with a pair of metallic green antehumeral stripes shaped like those seen in L. dorothea. There are several irregular spots present on both sides. The thorax of matured males are heavily pruinosed, obscuring all these markings. Abdomen is blue marked with black on dorsum. Segments 2 to 7 have very narrow bluish basal rings. Segment 8 has a thin apico-lateral blue spot. Segment 9 has a very large lateral spot of blue on each side which may get pruinosed to form an apical ring in adults. Segment 10 also has a blue spot on each side, get pruinosed to form an apical ring in adults. Anal appendages are pale yellow with black on apices. Female is similar to the male with pale yellowish green colors. It breeds in well vegetated ponds, marshes and lakes. This damselfly can be found quite commonly in shaded lowland swamps and drains.

The scientific name Rhyothemis phyllis was first validly published in 1776 by Sulzer.

The adult is 2 - 2.5 cm long and 7 - 10 mm wide, stout, and grey to brown with a clear saltire in cream or yellow on its back. The legs are long and the shoulders of the pronotum project into short spines in adults and older nymphs. The hindmost legs are much thicker than the other legs, and the hind femur has inner rows of fine teeth and one preapical spine. The hindmost legs are shorter and much swollen in the male. The hind tibia are inwardly lamellate in about middle third; less so in the male, which also has a distinct spine on the lamellate area. Later instar nymphs have a pair of orange spots in the middle of the upper surface of abdomen, and wing pads in later instars are marked with orange.

Upperside is white,base of wings are very slightly powdered with minute black scales.The costa of forewing is speckled obscurely with black; apex black, the inner margin of this inwardly angulate; a very large somewhat pear-shaped post-discal spot also black. Hindwing is white,in most specimens an obscure, extremely slender, terminal black line. Underside is white; costal margin and apex of forewing broadly, and the whole surface of the hindwing irrorated (speckled) with transverse, very slender, greenish strigae and minute dots; these on the hindwing have a tendency to form sub-basal, medial and discal obliquely transverse obscure bands; the postdiscal of forewing is black,spot as on the upperside; terminal margins of both forewings and hindwings with minute black, short, transverse slender lines at the apices of the veins, that have a tendency to coalesce and form a terminal continuous line as on the upperside. Antennae dark brown spotted with white, head slightly brownish, thorax and abdomen white. Female is similar as male, the black markings on the upperside of the forewing on the whole slightly broader, but not invariably so. Wingspan is 2.5 - 5 cm. Larva is green with a pale glaucous tinge about the bases of the legs and slightly hairy. Pupa sometimes green, but more often of a delicate pink shade.