''Dideoides'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

hoverflies Hoverflies, also called flower flies or syrphids, make up the insect family (biology), family Syrphidae. As their common name suggests, they are often seen Hover (behaviour), hovering or nectaring at flowers; the adults of many species feed main ...

distributed in Japan, China, and the Philippines

Description

Species in the genus differ from those in the genus '' Didea'' 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 and narrower towards the apex. The vertex (female) is much narrower than the half breadth of the front between the antennae. The compound eyes are pubescent. 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