''Arastichus'' is a genus of

hymenoptera Hymenoptera is a large order (biology), order of insects, comprising the sawfly, sawflies, wasps, bees, and ants. Over 150,000 living species of Hymenoptera have been described, in addition to over 2,000 extinct ones. Many of the species are Par ...

n insects of the family Eulophidae. It is only known from the neotropics. At least one of the three known species induces

gall Galls (from the Latin , 'oak-apple') or ''cecidia'' (from the Greek , anything gushing out) are a kind of swelling growth on the external tissues of plants, fungi, or animals. Plant galls are abnormal outgrowths of plant tissues, similar to be ...

s on plants in the family Araceae.

References

Eulophidae Taxa described in 2022 Gall-inducing insects Hymenoptera genera Taxa named by Michael W. Gates Taxa named by Y. Miles Zhang {{Eulophidae-stub