Copestylum ornatum, (WILLISTON, 1891)

Rotheray, Graham E., Marcos-García, Maria-Angeles, Hancock, Geoff, Pérez-Bañón, Celeste & Maier, Chris T., 2009, Neotropical Copestylum (Diptera, Syrphidae) breeding in Agavaceae and Cactaceae including seven new species, Zoological Journal of the Linnean Society 156 (4), pp. 697-749 : 704-705

COPESTYLUM ORNATUM (WILLISTON, 1891)

Puparium: (prothoracic plate missing), largest species of the group, puparium length 9 mm. Anterior fold without extra large spicules. Thorax with lateral fold bearing sensilla 4 of mesothorax wider than band immediately below bearing sensilla 5. Abdominal vestiture of short, upright setae. Anal lobe without spicules. Posterior breathing tube orange, tapering. AP punctured and shiny, and as long as TR is wide. Pupal spiracles dark orange, matt, shining apically, and with openings in upper third. Pupal spiracles 1.1¥ as wide apart as a pupal spiracle is long.

Taxonomic notes: Copestylum ornatum is similar to those species of the Pictum group having a tapering posterior breathing tube. It can be separated from these species by its large size (puparium length 9 mm), upper thoracic lateral fold being wider than the fold immediately below and having dark orange pupal spiracles. In having dark orange pupal spiracles it is similar to C. imitans but may be separated from that species by its tapering posterior breathing tube.

Material examined (INBio): 1 ♂, one puparium COSTA RICA Alajuela, La Garita, Fca. Periodistas 14.i.1994 ex Hylocereus costaricensis (F.A.C. Weber) Britton and Rose 1909 (Cactaceae) ; 1 ♂, 1 ♀, two puparia COSTA RICA Heredia, Santo Domingo, INBioparque 15.vii.2000 ex decaying columnar cactus E. G. H., G. E. R..