''Calliopum simillimum'' is a species of

fly Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced ...

in the family

Lauxaniidae The Lauxaniidae are a family of Acalyptratae, acalyptrate fly, flies. They generally are small flies (length 7 mm or less) with large compound eyes that often are brightly coloured in life, sometimes with characteristic horizontal stripes, s ...

. It is found in the

Palearctic The Palearctic or Palaearctic is a biogeographic realm of the Earth, the largest of eight. Confined almost entirely to the Eastern Hemisphere, it stretches across Europe and Asia, north of the foothills of the Himalayas, and North Africa. Th ...

References

Lauxaniidae Insects described in 1933 Muscomorph flies of Europe {{Lauxanioidea-stub