Calycomyza eupatorivora Spencer

Eiseman, Charles S. & Lonsdale, Owen, 2018, New state and host records for Agromyzidae (Diptera) in the United States, with the description of thirty new species, Zootaxa 4479 (1), pp. 1-156 : 30-31

publication ID	https://doi.org/ 10.11646/zootaxa.4479.1.1
publication LSID	lsid:zoobank.org:pub:93C84828-6EEF-4758-BEA1-97EEEF115245
DOI	https://doi.org/10.5281/zenodo.5997690
persistent identifier	https://treatment.plazi.org/id/03D287EF-FFBD-E454-A8E5-54C94575FD65
treatment provided by	Plazi
scientific name	Calycomyza eupatorivora Spencer
status

Treatment

Calycomyza eupatorivora Spencer View in CoL

( Fig. 106 View FIGURES 97–108 )

Material examined. FLORIDA: Miami–Dade Co., Homestead, Avocado Drive., 31.iii.2013, em. ~ 27.iv.2013, C.S. Eiseman, ex Chromolaena odorata , #CSE352, CNC 392678 (1♂).

Host. Asteraceae : Chromolaena odorata (L.) R.M. King & H. Rob.

Leaf mine. ( Fig. 106 View FIGURES 97–108 ) Initially linear, gradually expanding into a whitish, upper surface blotch, which in some cases becomes somewhat blistered. As the track widens, a brown central frass deposit becomes evident, widening along with the mine. As many as four mines were observed in a single leaf, sometimes coalescing. In all the examples observed, the mines began near the base of the leaf and so had ample room to expand into a trumpet shape, without doubling back to the extent that the linear portion was obliterated.

Puparium. Brown; formed outside the mine.

Distribution. USA: FL; Jamaica ( Spencer & Stegmaier 1973).

Comments. This species was first recorded in the USA by Diaz et al. (2015), and it was the only agromyzid they encountered on Chromolaena odorata during their three-year study of arthropods on this host in Florida. Two other Calycomyza species known to occur in the USA are recorded from Chromolaena odorata , but both of these records are questionable. Spencer & Steyskal (1986) list Calycomyza jucunda (Wulp) under “ Eupatorium odoratum L.” despite stating elsewhere that its host is unknown and that the Asteraceae-feeder previously identified as C. jucunda is actually C. platyptera (Thomson) . We have found nothing else in the literature to suggest that C. platyptera has been reared from Chromolaena , but its mines would be distinguishable by having the puparium formed inside. Spencer (1990) stated that the known hosts of Calycomyza artemisiae (Kaltenbach) in the USA include “ Eupatorium odoratum ,” but again we have found no evidence for this in prior literature, and the known distribution of C. artemisiae does not overlap with that of Chromolaena odorata .