BioStor
 | The type-species of the North American genera of Diptera D W Coquillett (1910) Proceedings of the United States National Museum 37: 499-647 |
 | A generic synopsis of the Itonidae E P Felt (1911) Journal of the New York Entomological Society 19: 31-62 |
 | A revision of the North American Pachygasterinae with unspined scutellum (Diptera) J R Malloch (1915) Ann. Ent. Soc. Amer 8: 305-320 |
 | Notes on several species of North American Pachygasterinae (Diptera: Stratiomyidae) with the description of a new species (1930) Entomological News Philadelphia 41: 103-106 |
 | New synonomy and a review of Haplusia (Diptera: Cecidomyiidae) R J Gagne (1978) Proceedings of the Entomological Society of Washington 80: 517-519 |