''Dideoides'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
hoverflies
Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, whi ...
distributed in Japan, China, and the Philippines
Description
Species in the genus differ from those in the genus ''
Didea
''Didea '' is a genus of hoverflies. Flight periods tend to be late in the year, and their larvae feed on aphids
Aphids are small sap-sucking insects and members of the superfamily Aphidoidea. Common names include greenfly and blackfly, alt ...
'' in some respects. The 3rd antennal joint is compressed, as long as the first and 2nd taken together, and near the base at the back has a long arista, which is much longer than the antenna itself. The proboscis is much longer, nearly 1/3 of the height of the head, the oral opening is oval andnarrower towards the apex. The vertex (female) is much narrower than the half breadth of the front between the antennae. The compound eyes are pubescented. The wings are broader and longer, the 3rd longitudinal vein opens before the apex and is nearly straight or a little curved. The cross-vein is at about 1/4 of the discoidal cell, and the bend of the 4th vein has no appendage (only a fold may be seen). The lateral sides of the abdomen are distinctly ridged.
[ ]
Species
The genus contains about 11 species:
References
Syrphinae
Syrphini
Hoverfly genera
{{syrphidae-stub