Ferdinandea fumipennis Kassebeer, 1999

Ricarte, Antonio, Marcos-García, M Angeles, Pérez-Bañón, Celeste & Rotheray, Graham E., 2007, The early stages and breeding sites of four rare saproxylic hoverflies (Diptera: Syrphidae) from Spain, Journal of Natural History 41 (25 - 28), pp. 1717-1730 : 1719-1721

Ferdinandea fumipennis Kassebeer

Puparium

Overall appearance. Short-tailed larva with mouthparts of the saprophagous type ( Rotheray and Gilbert 1999); truncate anteriorly, slightly tapered posteriorly; prolegs absent, vestiture of fine setae becoming longer towards the anal segment; head skeleton with mandibles and tentorial bar heavily sclerotized ( Figure 2 ); prp short, slightly longer than wide from transverse band to apex and slightly tapering with a transverse indentation just below the apex ( Figure 2 ).

Dimensions. Length 8.17 mm; width 4.24 mm.

Head. Mouth-hooks present but inconspicuous; mandibular lobes partially external ( Rotheray and Gilbert 1999) and dorsal lip coated in setae.

Head skeleton ( Figure 2 ). Basal sclerite lightly sclerotized; ventral cornu about three times as long as dorsal cornu, bar-shaped with ventral pharyngeal ridges and grinding mill ( Hartley 1963) present; dorsal cornu rounded apically; dorsal bridge not heavily sclerotized; in lateral view, tentorial bar about three times wider in front of the tentorial bridge than behind; mandibular sclerite T-shaped with apodeme about twice as narrow as the longer and heavily sclerotized mouthhook.

Prothorax. Anterior fold coated with setae.

Anterior spiracles. Anterior spiracles 0.05 mm long by 0.04 mm wide, inconspicuous, lightbrown with four or five oval openings across the apex.

Mesothorax. Prolegs absent.

Abdomen. Vestiture of a uniform coating of fine, pale brown setae varying in length from 0.04 to 0.1 mm and becoming longer towards the anal segment; ventral surface of the anal segment with one transverse fold between the anus and the tip of the segment; abdominal segment 7 with sensilla 1–6 on fleshy, rounded papillae; anal segment truncate and inclined dorso-ventrally; first two pairs of lappets on the anterior section of the anal segment and the third pair of lappets on the posterior section; prolegs absent.

Pupal spiracles. Separated by a distance of about 2.5 times their length; each spiracle 0.42 mm long and 0.18 mm wide, brown, sub-cylindrical, inclined postero-laterally; irregularly spaced tubercles bearing spiracular openings extending halfway down the antero-dorsal surface; between tubercles surface smooth but sculptured at base.

Posterior respiratory process ( Figures 5, 6 ). Short, with visible section about as long as wide; dark brown; matt with a distinct transverse band and a striated indentation below the apex; length between transverse band and spiracular plate 0.35 mm; tapered towards the apex with width at transverse band 0.5 mm; spiracular plates separated by a deep, dorso-ventral indentation; each plate bearing three horse shoe-shaped spiracular openings.

Material examined

One puparium reared from larva collected 8 April 2005 from a 1.25 m high, south facing, exudation of sap on a Quercus pyrenaica tree trunk, Spain, Ciudad Real, Cabañeros National Park , Santiago valley, C. Pérez-Bañón, G. Rotheray, and M. A. Marcos-García, puparium formed 14 April 2005 , male emerged 29 April 2005.

Figures

Figures 1, 2. Mandibular sclerite detail from closely related Ferdinandea species head skeletons in lateral view. (1) Ferdinandea cuprea. (2) Ferdinandea fumipennis. Scale bar: 1 mm.

Figures 3–6. Closely related Ferdinandea species posterior respiratory processes (prp) showing the tube sculpture and the spiracular plate, in dorsal and apical views, respectively. (3, 4) Ferdinandea cuprea. (5, 6) Ferdinandea fumipennis. Scale bars: 1 mm.