Gomphidae Temporal range: | |
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Bladetail, male, Lindenia tetraphylla North Macedonia | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | Insecta |
Order: | Odonata |
Infraorder: | Anisoptera |
Superfamily: | Gomphoidea Rambur, 1842 |
Family: | Gomphidae Rambur, 1842 [1] |
Genera | |
See text |
The Gomphidae are a family of dragonflies commonly referred to as clubtails or club-tailed dragonflies. The family contains about 90 genera and 900 species found across North and South America, Europe, Asia, Australia, and Africa. [2] The name refers to the club-like widening of the end of the abdomen (abdominal segments 7 through 9). However, this club is usually less pronounced in females and is entirely absent in some species.
The name is from Greek gomphos, "bolt, nail", for the shape of the insect's abdomen. [3]
Clubtails have small, widely separated compound eyes, a trait they share with the Petaluridae and with damselflies. The eyes are blue, turquoise, or green. The thorax in most species is pale with dark stripes, and the pattern of the stripes is often diagnostic. They lack the bright metallic colors of many dragonfly groups and are mostly cryptically colored to avoid detection and little difference between the sexes is seen. [4] Adults are usually from 40 to 70 mm (1.6 to 2.8 in) in length; there are 6 specific variations that are native to Africa alone, and vary from 33 to 40 mm (1.3 to 1.6 in) in length; there are also 97 varieties specific to North America as well. [5]
Clubtails are fast-flying dragonflies with short flight seasons. They spend much time at rest, perching in a suitable position to dart forth to prey on flying insects. They tend to perch on the ground or on leaves with the abdomen sloping up and its tip curling down a little. Larger species may perch with a drooping abdomen or lie flat on a leaf. Another stance adopted by clubtails perching in the open is "obelisking", standing with the abdomen raised vertically, a posture adopted otherwise only by the skimmers. [4]
Most clubtails breed in streams, rivers, or lakes. The nymphs are unusual in having a flat mentum, part of the mouthparts, and their antennae have only four segments. They burrow in the sediment at the bottom of the water body, with the nymphs of the dragonhunter (Hagenius brevistylus) living among damp bark and leaf litter at the edge of the water. [6] Some larvae variations actually differ from this typical burrowing. Some will only come out during daytime, which differs from the predominant nighttime emergence. Some larvae also will lay on flat surfaces, whereas most larvae prefer a vertical-type surface. [7]
Gomphidae has over 80 genera and includes more than 900 species, and is the only family in the superfamily Gomphoidea. [8] [9]
These genera belong to the family Gomphidae. [9]
The Platycnemididae are a family of damselflies. They are known commonly as white-legged damselflies. There are over 400 species native to the Old World. The family is divided into several subfamilies.
The dragonhunter is a clubtail dragonfly of the eastern United States and southeastern Canada.
Asiagomphus is a genus of dragonfly in the family Gomphidae. It contains the following species:
Gomphidia is a genus of dragonfly in the family Gomphidae. It contains the following species:
Ictinogomphus is a genus of dragonflies in the family Gomphidae. They are medium to large, yellow and black with clear wings. Species occur in Africa, Asia and Australia.
Ophiogomphus, commonly known as snaketails, is a genus of dragonflies in the family Gomphidae. Most of the species in the genus Ophiogomphus have beautifully marked green club-shaped abdomens, which are more noticeable in the males.
Paragomphus is a genus of dragonfly in the family Gomphidae. They are commonly known as hooktails.
Progomphus is a genus of medium-sized dragonflies in the family Gomphidae. They are found in the Americas and are largely tropical. They are one of the few Gomphids with coloured wings.
Stylurus is a genus of dragonflies in the family Gomphidae. They are commonly known as hanging clubtails from their habit of hanging nearly vertically when they perch.
Gomphus is a genus of clubtail dragonflies in the family Gomphidae.
Arigomphus is a genus of dragonflies of the Gomphidae family. This group is commonly called the pond clubtails. The species are fairly plain and only the males have the club-shaped abdomen. Unlike other gomphids, they may emerge from artificial ponds.
Sieboldius is a genus of dragonflies in the family Gomphidae. The genus occurs in Asia and is closely related to the dragonhunter of North America.
Ictinogomphus rapax, the common clubtail, is a species of dragonfly in the family Gomphidae. It is found throughout the Indomalayan region.
Up until recently, Lindeniidae was considered a family of dragonflies occurring in Australia. It is no longer recognised.
Phanogomphus is a genus of clubtails in the family Gomphidae found in North America. There are about 17 described species in Phanogomphus.
Gomphurus is a genus of clubtails in the family of dragonflies known as Gomphidae. There are about 13 described species in Gomphurus.
Hylogomphus is a genus of clubtails in the family of dragonflies known as Gomphidae. There are about six described species in Hylogomphus.
Gomphurus gonzalezi, the Tamaulipan clubtail, is a species of clubtail in the family of dragonflies known as Gomphidae. It is found along the lower Rio Grande in the United States, and across the border into Mexico. It is known only in one state in the United States (Texas) and one state in Mexico.
Phanogomphus militaris, the sulphur-tipped clubtail, is a species of clubtail dragonfly in the family Gomphidae. It is found in central North America.