South American Grain Stem Sawfly vs Hawaiian Big-headed Ant
Side-by-side species comparison
| Attribute | South American Grain Stem Sawfly | Hawaiian Big-headed Ant |
|---|---|---|
| Scientific Name | Cephus fumipennis | Pheidole megacephala |
| Order | Hymenoptera | Hymenoptera |
| Family | Cephidae | Formicidae |
| Size | 7-10 mm | 2-4 mm |
| Habitat | Farmland | Woodlands |
| Diet | Seed Feeders | Seed Feeders |
| Regions | Europe, Central Asia | Hawaii, Pacific Islands |
| Conservation | Least Concern | Not Evaluated |
South American Grain Stem Sawfly
A slender black stem sawfly with smoky wings and yellow abdominal bands. It attacks cereal grain stems in parts of Europe and Asia.
Did You Know?
Like other cephid stem borers, the larva constructs a silken cocoon inside the hollowed-out stem base where it overwinters before pupating in spring.
Hawaiian Big-headed Ant
An invasive ant now widespread in Hawaii with a disproportionately large head in the soldier caste. It displaces native insects throughout the islands.
Did You Know?
It is listed among the world's 100 worst invasive species by the IUCN.