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Anastrepha and Toxotrypana:
descriptions, illustrations, and interactive keys

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Allen L. Norrbom, Cheslavo A. Korytkowski, Roberto A. Zucchi, Keiko Uramoto, George L. Venable, Jerrett McCormick and Michael J. Dallwitz

Anastrepha umbrosa Blanchard

Morphology

Body. Setae dark red brown, or dark brown to black.

Head. Frons without brown markings except ocellar tubercle. Occiput without brown marks. Gena without brown spot. Face with ventral part gradually tapered laterally; without brown markings.

Thorax. Postpronotal, presutural supra-alar, dorsocentral, intra-alar and scutellar setae well developed, subequal to or longer than scutellum length. Mesonotum yellow, or orange. Scutum without brown vittae. Scutellum entirely yellow or with dark markings only on extreme base of disk. Mesopleuron mostly yellow to orange, without brown markings. Subscutellum entirely yellow to orange. Mediotergite entirely yellow to orange.

Wings. Wing length 9–11 mm (10, Blanchard 1961). Wing pattern typical Anastrepha pattern (S-band complete or at most interrupted at crossvein r-m, C-band and at least proximal arm of V-band present). C-band covering base of cell r2+3; yellow or orange area posterior to pterostigma broad, extending distally into cells r1 and r2+3 at least to level of midlength of pterostigma. C-band and S-band connected (narrowly along vein R4+5, cell r1 with basomarginal hyaline spot), or separated (probable variation). Basal hyaline area between C-band and S-band extended to vein R4+5. Cell r1 basomarginal hyaline spot triangular to quadrate. Cell r1 basomarginal hyaline spot apex aligned proximal to crossvein r-m. S-band extended anteriorly to vein R4+5 and covering all of crossvein r-m. S-band middle section predominantly or entirely orange, often with brown margins. Subapical hyaline area in radial cells distal to r-m extending anteriorly into cell r1, or extending anteriorly to vein R2+3. S-band distally not extended to apex of vein M. V-band proximal arm as dark as apical half of S-band; not connected anteriorly to S-band; not connected to S-band in cell dm. V-band distal arm complete; connected to proximal arm of V band. Apex of V-band not extended from vein R4+5 to vein M, hyaline area present between band and vein M. Vein R2+3 not sinuous; without accessory vein. Vein R4+5 distal to crossvein r-m more or less evenly curved or not strongly bowed medially. Crossvein dm-cu orientation with anterior end more distal than posterior end.

Abdomen. Oviscape length 2.25–2.75 mm (2.5, Blanchard 1961); spiracle ratio (distance from base to spiracle/oviscape length) 0.25–0.33 (0.29, Blanchard 1961). Aculeus length 1.7–2 mm (1.85, Blanchard 1961). Aculeus length/oviscape length 0.74, Blanchard 1961. Aculeus tip length 0.105–0.14 mm (0.123, Blanchard 1961); width 0.12–0.14 mm (0.131, Blanchard 1961); length/width in ventral view 0.88–0.98 (0.93, Blanchard 1961); lateral margins not curved dorsally; spatulate; flared outward at or proximal to base, lateral margin strongly concave; without ridges or lobes; without elongate dorsolateral depressions apically; with fine serrations; serrated part 1.25–1.6 times length of tip (1.53, Blanchard 1961). Aculeus tip serrations not extending onto dorsal side basally. Aculeus tip with serrations separated by less than width of serration.

Miscellaneous

Data source: Blanchard 1961. Sex of recorded specimens: female. Species group: spatulata group.

Biology and economic significance

This species is not considered economically important. Refer to the Fruit Fly Databases for host plant information.

Links

Fruit Fly Databases for host plant, distribution, and nomenclatural information. Google search.