| Eumerini | |
|---|---|
 | |
| Eumerus feae (female) | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Family: | Syrphidae |
| Subfamily: | Eristalinae |
| Tribe: | Eumerini |
| Genera | |
See text | |
| Synonyms | |
Merodontini | |
The Eumerini [1] is a tribe of hoverflies. The breeding habits of this group varies: larvae of the genera Merodon and Eumerus tunnel into plant bulbs while larvae of Psilota have been found in sap runs.
Eristalinae are one of the four subfamilies of the fly family Syrphidae, or hoverflies. A well-known species included in this subfamily is the dronefly, Eristalis tenax.
Xylota segnis, The Brown-toed Forest Fly, is a common species of hoverfly.
Xylota is a Holarctic genus of hoverflies similar in structure to the related genera Chalcosyrphus and Brachypalpoides. As the larvae are saprophytic they're usually found in rotting wood. The adult flies are generally associated with woodland and woodland edges and can often be seen running over the upper sides of leaves. Unlike other syrphids the adults of many species rarely visit flowers preferring instead to gather pollen from leaf surfaces. There are over 100 described species of which 12 can be found in Europe. Seven species have been recorded in Britain. Identification of species has been difficult and identifiction by photographs is risky.
Merodon is a large genus of bee-like hoverflies. The majority of the species are centered on the Mediterranean and it is the second largest hoverfly genus in Europe with more than 50 European species. It is distributed over the Palaearctic and Afrotropical realms, with most European species occurring in Southern and Eastern Europe. The centre of distribution of this genus appears to be Turkey, where about 65 species have been recorded. Some species occur in Africa and the middle East, as far as Pakistan. Given the rate at which new species have been recorded over the past decades, the worldwide number of species could exceed 200. The larvae feed on the bulbs or rhizomes of monocotyledons.
Eumerus is a genus of hoverflies, within the tribe Eumerini.
Merodon equestris is a Holarctic species of hoverfly. Like many other hoverflies it displays a colouration pattern similar to a stinging insect as an evolutionary defense mechanism. Other syrphid bee mimics are Mallota, Arctophila, Criorhina, Pocota and Brachypalpus. Merodon species are distinguished from these by the very strong hind femora, which bear a large triangular projection on the underside near the tip. It flies in low vegetation while the other bumblebee mimics prefer higher vegetation layers.
Epistrophe is a genus of flies in the family Syrphidae, the hoverflies or flower flies.
Chalcosyrphus is a genus of hoverflies in the subfamily Eristalinae. Many species exhibit some degree of mimicry of various sawflies and other hymenopterans and are often brightly coloured or metallic in hue. The adults are similar in structure and behavior to the related genus Xylota but differ in larval morphology. They can be found throughout Europe, Asia, and North America and seem to prefer damper, boggy habitats. The larvae are saproxylic feeders in rotten wood in these habitats.
Brachyopa is a Holarctic genus of hoverflies whose grey and brown colouration is unusual for this family and these flies can easily be overlooked amongst members of other fly families. The larvae can be found under the bark of dead branches and trees in decaying sap.
These are small black and yellow or mostly black flies with a narrow abdomen near the thorax. They occur mainly in damp places among low herbage. The larva of Neosascia are flattened without oral hooks and a have a short posterior spiracular process or "tail" rat-tailed that is saprophagous. In 1925 Curran reviewed the genus Neoascia. In this work a key is provided and ten species are described including four new species some of which have later been determined to be synonyms.
Neoascia podagrica is a species of hoverfly.
Psilota is a genus of small black hoverflies with long wings, from the family Syrphidae, in the order Diptera. They are one of the few hoverfly genera that do not have a venia spuria in the wings. The larvae feed on tree sap.
Pipiza is a genus Hoverflies, from the family Syrphidae, in the order Diptera. Most are dark hoverflies.
Trichopsomyia is a genus of Hoverflies, from the family Syrphidae, in the order Diptera.
Brachypalpus is a genus of hoverflies, from the family Syrphidae, in the order Diptera. The head is triangular and produced well forwards and somewhat downwards. The thorax and abdomen with pile often rather long. The hind femur is swollen and with an obtuse spur apically and ventrally. The hind trochanters of male is spurred.
The larvae are of the rat-tailed type feeding on decaying sap under tree bark. Larvae live in decaying trees and logs. Larva and pupa have been described by Malloch.
The Brachyopini is a tribe of hoverflies. Unlike many members of this family these flies are generally darker and less colourful though some genera contain species with an attractive metallic lustre e.g. Chrysogaster. Some like Brachyopa are associated with sap runs where their larvae feed on decaying sap. Others are found in boggy areas where their often semiaquatic larvae feed on decaying organic matter.
The Spheginina is a subtribe of hoverflies.
Total of 245 species either found or highly expected to be found in New York.
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