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Anastrepha zucchii Norrbom
Anastrepha zucchii belongs to the daciformis species group, which differs from other species of Anastrepha in having the basal third of the scutellum brown, the male phallus extremely short (less than 0.30 mm long) and with the glans absent (as in the dentata group), and the female eversible membrane dorsobasally with a single, medially interrupted row of very stout scales. Anastrepha zucchii is one of several species with a vespidlike wing pattern comprising only a broad, uninterrupted, costal band covering all of cell r2+3, and a cubital streak. It differs from other species of the macrura complex (aquila, avispa, bicolor and macrura) as follows: Notopleuron entirely dark, and presutural lateral pale stripe reduced to a spot anterolateral to presutural supra-alar seta that is isolated from pale area on postpronotal lobe; presutural dorsocentral pale stripe absent; wing with broad, moderate brown stripe from cell bcu to apex of cell cu1, not extended into cell dm; V-band completely absent, crossvein dm-cu without faint brown border; and dorsal brown mark on frons usually bilobed and narrowest medially. It further differs from A. macrura as follows: pale medial stripe on abdomen not expanded on apical half of syntergite 1+2, sometimes connected to transverse band on base of syntergite 1+2; tergites without narrow white lateral margins; occiput dark except anterior margin; and facial carina entirely yellow.
Body predominantly dark brown.
Head: Yellow and brown. Frons with brown transverse dorsal band, usually bilobed anteriorly and narrowest in line with ocellar tubercle, orbital seta within band. Gena with large brown spot below eye. Occiput brown except anterior margin and narrowly dorsomedially. Posterior orbital seta absent.
Thorax: Postpronotal lobe with anteromedial 1/5-2/5 brown. Medial pale stripe strongly bilobed posteriorly, lobes extremely slender, relatively short, not extended to dorsocentral seta. Presutural dorsocentral pale stripe absent. Presutural lateral pale stripe incomplete, on scutum reduced to spot isolated from postpronotal lobe, and absent from notopleuron. Pleuron brown except following yellow areas: narrow anteroventral area and posterodorsal third of anepisternum; two dorsal spots on katepisternum; katepimeron; anterior 2/3 of katatergite; and most of anatergite. Subscutellum and mediotergite entirely dark brown. Scutum without microtrichia medially, microtrichose only lateral to sublateral stripe and posterior to acrostichal seta; notopleuron microtrichose; scutellum microtrichose except basal area on side.
Wing: C- and S-bands completely fused along costa to form broad, uninterrupted, moderate to dark brown marginal band; in cell br extended to vein M along cell bm; covering all of cells r1 and r2+3 and anterior margin of cell r4+5; well separated from apex of vein M. S-band incomplete, middle part between veins R4+5 and Cu1 absent; basal part almost as dark as C-band; extended over base of cell cu1 and broadly and distinctly along posterior side vein Cu1 to its apex; not extended into cell dm. V-band completely absent. Vein M strongly curved apically; M ratio 1.52-1.79. Cell r1 microtrichose bordering cell bm, with large bare area in apical half. Cell bcu entirely microtrichose.
Abdomen: Tergites, including base of syntergite 1+2 and lateral margins of all tergites, entirely dark brown except for narrow transverse white band near middle of syntergite 1+2 and narrow medial white stripe from syntergite 1+2 to tergite 5, these two marks sometimes connected to form a T-shaped mark.
Male terminalia: Lateral surstylus very short, barely extended beyond prensisetae. Phallus extremely short, less than 0.30 mm long; glans absent.
Female terminalia: Oviscape length 4.62-5.28 mm, 1.46-1.57 times as long as mesonotum. Eversible membrane, on expanded basal part, with most dorsal scales weakly sclerotized, but with one, medially interrupted row of large, strongly sclerotized, hooklike scales. Aculeus slender, no more than 0.05 mm wide, except at base, length 4.78 mm; tip needlelike, nearly circular in cross-section, finely serrate apically, length 0.10 mm, width 0.05 mm.
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Content by Allen L. Norrbom. Last Updated: February 5, 2003.