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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 bivittata (Macquart)

Morphology

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

Head. Frons without brown markings except ocellar tubercle. Occiput without brown marks. Frontal setae 4–5. Orbital setae 2. Ocellar seta weak, small or absent. Gena without brown spot. Facial carina in profile concave or flat on dorsal 2/3. Face with ventral part gradually tapered laterally; without brown markings. Antenna not extended to ventral margin of face.

Thorax. Mesonotum length 2.8–3.5 mm (2.90–3.17, n=2, 3.17 in lectotype). Postpronotal lobe and notopleuron entirely microtrichose. Scutum mostly or entirely microtrichose. Scutellum disc entirely microtrichose. Postpronotal, presutural supra-alar, dorsocentral, intra-alar and scutellar setae well developed, subequal to or longer than scutellum length; postpronotal seta on posterior half of postpronotal lobe. Acrostichal seta well developed. Basal scutellar seta strong, longer than scutellum. Katepisternal seta moderately developed, larger than postocellar seta, but much smaller and weaker than anepimeral seta, or weak, no larger than postocellar seta, or absent. Mesonotum orange, or dark orange; without pale spot or vitta on presutural lateral margin of scutum or posterior part of notopleuron, or with short presutural lateral pale vitta on lateral margin of scutum, not extended onto notopleuron. Scutum presutural dorsocentral pale vitta absent; with 3 (both medial and sublateral) pale postsutural vittae; pale medial vitta narrow posteriorly, not expanded, or with posterior end ovoid (not extended laterally beyond acrostichal seta); pale sublateral postsutural vitta extended posteriorly to intra-alar seta. Scutum posteriorly without brown or orange brown markings. 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, or yellow to red brown medially, dark brown laterally. Mediotergite yellow to red brown medially, dark brown laterally. Femora entirely yellow to orange. Fore femur with posterodorsal and ventral rows of well developed setae.

Wings. Wing length 7–8.5 mm (7.2–7.3, n=2). 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 broadly extending to vein M in cell br along cell bm; covering base of cell r2+3; yellow or orange area posterior to pterostigma small or absent, not extending beyond cell r1 nor distally beyond level of basal third of pterostigma. C-band and S-band connected (along vein R4+5, cell r1 with basomarginal hyaline spot). Basal hyaline area between C-band and S-band absent (bands entirely fused basally). 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. Cell bm entirely infuscated. S-band base without extension in middle of cell cu1 to posterior wing margin; without extension in cell a1 to or almost to posterior margin. S-band middle section predominantly or entirely orange, often with brown margins. Subapical hyaline area in radial cells distal to r-m extending anteriorly to vein R2+3, or extending into cell r2+3 but not reaching vein R2+3. S-band distal section without marginal hyaline band or spots in cell r2+3 or near apices of R2+3 or R4+5. S-band distally not extended to apex of vein M. V-band proximal arm as dark as apical half of S-band; extending more than 1/3 distance from apex of vein Cu1 to apex of vein A1+Cu2; not connected anteriorly to S-band, or connected anteriorly to S-band along vein R4+5 or in cell r2+3; not connected to S-band in cell dm, or connected to S-band in cell dm. V-band distal arm anterior part present in cell r4+5, but incomplete in cell m (sometimes with spot anterior to vein M), or absent; isolated, not connected to proximal arm of V-band or to S-band. S-band distal section width ratio (width of S-band/width of cell r2+3, both measured perpendicular to costal margin at apex of vein R2+3) 0.5–0.65 (0.56–0.60, n=3). Area surrounding apex of lobe of cell bcu with microtrichia similar in density to area anterdistal to it along vein Cu1. Area between S-band and V-band entirely microtrichose in cells dm and cu1. Cell c: pterostigma ratio (cell c length/pterostigma length) 1.05–1.3 (1.13–1.20, n=3). Ratio of costa length between apices of Sc and R1/length between apices of R1 and R2+3 0.5–0.65 (0.53–0.61, n=3). Vein R1 ratio (distance from wing base to apex of R1/wing length) 0.51–0.60, n=3. 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. Vein M ratio (distance from bm-cu to r-m/distance from bm-cu to dm-cu) 0.72–0.78 (0.74–0.77, n=3). Vein M curvature ratio (width of cell r4+5 at apex/width at level of dm-cu) 0.6–0.85 (0.67–0.78, n=3). Cell bcu ratio (length/anterior margin length along vein Cu) 1.52–1.73, n=3. Cell bcu posteroapical lobe shorter than vein A1+Cu2. Crossvein dm-cu orientation with anterior end more distal than posterior end.

Abdomen. Abdominal tergite without brown markings. Oviscape entirely yellow to orange brown; straight; length 3.25–4 mm (3.28–3.40, n=2; 3.5–4.0 in fumipennis syntypes (Lima 1934)); length ratio (oviscape length/mesonotum length) 1.03–1.17, n=2; spiracle ratio (distance from base to spiracle/oviscape length) 0.31–0.33, n=2. Eversible membrane with dorsobasal denticles all sclerotized, in continuous triangular to semicircular or suboval pattern. Aculeus length 3.1–4 mm (3.25–3.43, n=2; 4.25 in fumipennis syntype according to Zucchi (1978: 53), but oviscape 3.5–4.0 mm according to Lima (1934)). Aculeus length/oviscape length 0.96–1.05, n=2. Aculeus in ventral view more or less parallel-sided except extreme base. Aculeus in lateral view straight or ventrally curved. Aculeus tip length 0.22–0.28 mm (0.23, n=2; 0.27 in fumipennis syntype, estimated from Lima 1934, fig. 6); width 0.1–0.12 mm (0.11, n=2; 0.115 in fumipennis syntype, estimated from Lima 1934, fig. 6); length/width in ventral view 2.09–2.35, n=3; depth (width in lateral view)/width (in ventral view) 0.06, n=1; lateral margins not curved dorsally; not flared outward at or proximal to base; without ridges or lobes; without elongate dorsolateral depressions apically; not serrate; serrated part 0 times length of tip. Spermathecae sclerotized.

Miscellaneous

Other names for this species: Anastrepha fumipennis Lima. Sex of recorded specimens: female. Species group: grandis group.

Biology and economic significance

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

Illustrations

• Abdomen, female (Lima 1934, est. LXXV, fig. 62). • Wing (Lima 1934, fig. 10). (Lima 1934, fig. 10). • Wing. • Wing (Uramoto 2007). • Terminalia, female.

Links

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