Copestylum tapanti, Rotheray & Hancock & Marcos-García, 2007

Rotheray, G. E., Hancock, E. G. & Marcos-García, M. A., 2007, Neotropical Copestylum (Diptera, Syrphidae) breeding in bromeliads (Bromeliaceae) including 22 new species, Zoological Journal of the Linnean Society 150 (2), pp. 267-317 : 277-279

005. COPESTYLUM TAPANTI SP. NOV.

ROTHERAY & HANCOCK

Diagnosis – male holotype: Face yellow with narrow, black, medial vitta reaching the base of the antennae; lateral vittae interrupted before the mouth ( Fig. 5 ); face yellow haired; mesonotum entirely yellow; hairs on mesonotum yellow in the anterior part, black posteriorly; scutellum yellow with black hairs; pleura mainly black, only yellow on the posterior anepisternum, the anepimeron and the katepimeron; wing infuscated, darker in the costal margin; legs yellow, except base of femorae fuscous and tibiae black apically; posterior margin of femorae with yellow hairs, otherwise legs black haired; abdominal tergites 2–4 yellow except for posterior margins, which have black bands either narrowing or interrupted medially; sternites 1 and 2 yellow with yellow and black hairs; sternites 3 and 4 yellow with black posterior margin and with yellow and black hairs; genitalia – surstylus broad and triangularshaped with rounded lateral margins; hypandrium with lateral projections; aedeagus without serrated apical margin ( Figs 35, 36, 37 ); female – unknown. Length: body, 9.15 mm; wing, 8.16 mm (N = 1).

Diagnosis – puparium: Suckers on abdominal segments 1–6; marginal band of fleshy lobes coated in long, fine, unbranched setae, present on abdomen only, not including the thorax; vestiture comprising thick upright setae; ventral surface of lobes on abdominal segments 1–6 coated in short, thick, stiff setae; third pair of lappets part of the marginal band setulate almost to apex; posterior breathing tube with three pairs of spiracular openings not parallel, middle pair almost at right angles to the other pairs; pupal spiracles yellow with openings about halfway down, not clustered at widened apex.

Material examined – holotype: Male with puparium missing antennae and front tarsi, Costa Rica, Cartago N.P., Alto de Robles , 6 July 2000, ex water tank of bromeliad, GER ( INBio). Female unknown .

Etymology: The name ‘ tapanti’ comes from a locality near Alto de Robles in Costa Rica, which is part of the Cartago Parque Nacional.

Taxonomic notes: This species is most similar to C. galentei in overall yellow body colour, and in having male genitalia with broad surstyli and hypandria with lateral projections. C. tapanti differs from C. galentei in having a medial vitta on the face and in having black hind femorae. Within oscillans subgroup species with incomplete marginal bands and an orange posterior breathing tube, the early stages of C. tapanti are distinguished by short, thick setae on the underside of the lobes, underside of the third pair of lappets setulate almost to apex, and middle pair of spiracular openings on the posterior breathing tube orientated at right angles to the other two pairs. In early stage characters C. tapanti is most similar to C. oscillans , but is separated from that species by the latter character an by having yellow, not brown/black, pupal spiracles.

Biology: The adult was reared from a larva in a water tank of an epiphytic bromeliad ( Bromeliaceae ), and is known only from Costa Rica.

Figures

Figures 1–6. Adult Copestylum, lateral view of the head; scale line = 3.5 mm. 1. Copestylum galantei sp. nov., male holotype; 2. Copestylum gelenita sp. nov., male holotype; 3. Copestylum oscillans sp. nov., male holotype; 4. Copestylum tacanense sp. nov., male holotype; 5. Copestylum tapanti sp. nov., male holotype; 6. Copestylum xalapensis sp. nov., female holotype.

Figures 32–40. Adult Copestylum, male genitalia; right and left-hand figures scale line = 0.50 mm, for middle column figures, left-hand scale line = 0.85 mm. 32–34. Copestylum tacanense sp. nov., male holotype: 32. genitalia and associated structures, lateral view; 33. epandrium, ventral view; 34. surstylus, ventral view. 35–37. Copestylum tapanti sp. nov., male holotype: 35. genitalia and associated structures, lateral view; 36. hypandrium, ventral view; 37. surstylus, ventral view. 38–40. Copestylum volcanorum sp. nov., male holotype: 38. genitalia and associated structures, lateral view; 39.