Phytomyza spicata Malloch, 1810

O. H. Swezey, 1946, SOME MISCELLANEOUS DIPTERA OF GUAM, Insects of Guam-II, Hawaii, Honolulu: Bernice P. Bishop Museum, pp. 195-200 : 200

publication ID	https://doi.org/ 10.5281/zenodo.5127686
publication LSID	lsid:zoobank.org:pub:2D6A5768-0004-47F1-BF49-F505E638D597
DOI	https://doi.org/10.5281/zenodo.5211922
persistent identifier	https://treatment.plazi.org/id/484B8797-FFAB-FFB7-A5BE-FE03A709FC0E
treatment provided by	Carolina
scientific name	Phytomyza spicata Malloch
status

Treatment

22. * Phytomyza spicata Malloch View in CoL View at ENA

, Hist.-Nat. Mus. Nat. Hung., Ann. 12: 1914.

Dededo , May 11, especially abundant; Yigo ,. May 19 and Nov. 13; Mt. Alifan, May 26; Barrigada , June 24; Piti , July 31 and Aug. 9.

Described from· Formosa and occurs in Fiji and Samoa. Not previously recorded in Guam, where we found it very abundant. The larvae are leafminers in young corn plants, producing narrow, longitudinal, parallel mines and often as many as 100 per leaf. Very injurious to the early growth of corn plants. Apparently well controlled later by the eulophid parasite, Hemiptarsenoideus semialbiclava Girault , which reared out abundantly. Leafminer work was observed nearly everywhere on young corn.