Orthosyntexis

Orthosyntexis
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Clade:	Pancrustacea
Class:	Insecta
Order:	Hymenoptera
Family:	Anaxyelidae
Genus:	†Orthosyntexis; J. Gao, Engel, Shih, & T. Gao, 2021

Orthosyntexis is an extinct genus of sawflies from the family Anaxyelidae. It comprises several species that were collected from pieces of burmese amber from Myanmar dated 99 million years ago. Their bodies were typically no longer than 6 millimetres (0.24 in), their antennas were around 1.7 millimetres (0.067 in).

References

1 2 Li, Xiao; Niu, Gengyun; Wei, Meicai (2025-10-09). "A New Species of Orthosyntexis (Hymenoptera: Anaxyelidae) from Mid-Cretaceous Burmese Amber". Insects. 16 (10): 1039. doi:10.3390/insects16101039. ISSN 2075-4450. PMC 12565588. PMID 41148907.
↑ Gao, Jia; Engel, Michael S.; Shih, Chungkun; Ren, Dong; Gao, Taiping (2021-10-29). "A new genus of anaxyelid wood wasps from the mid-Cretaceous and the phylogeny of Anaxyelidae (Hymenoptera)". Journal of Hymenoptera Research. 86: 151–169. doi:10.3897/jhr.86.73161. ISSN 1314-2607.

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[:0-1] 1 2 Li, Xiao; Niu, Gengyun; Wei, Meicai (2025-10-09). "A New Species of Orthosyntexis (Hymenoptera: Anaxyelidae) from Mid-Cretaceous Burmese Amber". Insects. 16 (10): 1039. doi:10.3390/insects16101039. ISSN 2075-4450. PMC 12565588. PMID 41148907.

[2] Gao, Jia; Engel, Michael S.; Shih, Chungkun; Ren, Dong; Gao, Taiping (2021-10-29). "A new genus of anaxyelid wood wasps from the mid-Cretaceous and the phylogeny of Anaxyelidae (Hymenoptera)". Journal of Hymenoptera Research. 86: 151–169. doi:10.3897/jhr.86.73161. ISSN 1314-2607.