Copestylum lentum, (WILLISTON, 1887)

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 : 708

COPESTYLUM LENTUM (WILLISTON, 1887)

Larva and puparium: Anterior fold with a wide spicule band extending from just above the antennomaxillary organs to the apex. Spicules confined to the extreme ends of the longitudinal folds of the prothorax, only a few further along between the folds. Anterodorsal margin of metathorax with broad setae and spicules. Crochets of metathoracic prolegs forming a w-shaped band. Metathorax with lateral folds bearing spicules at sensilla 4 and 5. Anal lobe with broad setae. Posterior breathing tube with AP 0.9¥ length of TR, smooth, shiny and not tapered. Pupal spiracles about 1.1¥ length of AP.

Taxonomic notes: Copestylum lentum is similar to other members of the Marginatum group with an AP shorter than the width of the TR. The absence of anterior spiracles, mixed long and short abdominal vestiture, smooth not punctured AP, and spicules on the anterodorsal margin of the metathorax separate this species from others in this species group.

Material examined: 1 ♂, one puparium MEXICO Chapingo 15.iv.1964 CG Martell ex ‘nopal’ ; 1 ♀, one puparium no data ( SI) ; 1 ♂, one puparium, two larvae MEXICO Veracruz, Guadalupe Victoria 26.vii.1998 ex Opuntia M. A. M. ( CIBIO) .

Previous records: ex Opuntia ( Marcos-García & Pérez-Bañón, 2001) .