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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 dentata (Stone)

Morphology

Body. Setae orange brown, or red brown.

Head. 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 3–3.9 mm (3.05–3.86, n=4). Scutum mostly or entirely microtrichose. Postpronotal, presutural supra-alar, dorsocentral, intra-alar and scutellar setae well developed, subequal to or longer than scutellum length. Acrostichal seta well developed. Basal scutellar seta strong, longer than scutellum. Mesonotum yellow, or orange, or dark orange. Scutum with 3 (both medial and sublateral) pale postsutural vittae; pale medial vitta with posterior end ovoid, or with posterior end broadly quadrate. Scutum posteriorly with pair of brown spots or markings (sometimes also with medial brown spot), or with brown or orange brown band or other transverse marking or larger posteromedial mark. Scutum posteriorly with only pair of ovoid brown spots on or slightly lateral to dorsocentral line, or with pair of triangular brown marks on or near dorsocentral line; with irregular brown markings; without brown vittae (but with posterior spot). Mesopleuron mostly yellow to orange, without brown markings. Subscutellum entirely yellow to orange. Mediotergite entirely yellow to orange. Femora entirely yellow to orange. Fore femur with posterodorsal and ventral rows of well developed setae.

Wings. Wing length 6.75–8.6 mm (6.85–8.50, n=4). 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; 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 (along vein R4+5, cell r1 with basomarginal hyaline spot). Basal hyaline area between C-band and S-band extended to vein R4+5. Cell bm entirely hyaline or infuscated only along subapical fold. S-band base without extension in middle of cell cu1 to posterior wing margin. Subapical hyaline area in radial cells distal to r-m extending anteriorly to 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; connected anteriorly to S-band along vein R4+5 or in cell r2+3. V-band distal arm complete; connected to proximal arm of V band. 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. Cell bcu posteroapical lobe shorter than vein A1+Cu2. Costa in male with setulae on anterior margin between crossvein h and apex of vein R1 similar to other setulae. Crossvein dm-cu orientation with anterior end more distal than posterior end.

Abdomen. Abdomen ovate or parallel-sided, syntergite 1+2 gradually broadening or parallel-sided. Abdominal tergite without brown markings. Lateral surstylus in posterior view very short, barely extended beyond prensisetae, rounded apically. Lateral surstylus in posterior view not boot-shaped. Phallus length 0.6–1 mm; ratio (phallus length/mesonotum length) 0.18–0.3. Glans absent. Oviscape straight; length 2.2–2.6 mm (2.27–2.52, n=3); length ratio (oviscape length/mesonotum length) 0.65–0.8 (0.71–0.74, n=3). Eversible membrane with dorsobasal denticles all small, weakly developed, in triangular to semicircular pattern. Aculeus length 1.7–2 mm (1.85, n=2). Aculeus length/oviscape length 0.65–0.85 (0.73–0.81, n=2). Aculeus in ventral view more or less parallel-sided except extreme base. Aculeus tip length/aculeus length 0.04–0.08 (0.061–0.062, n=2). Aculeus tip length 0.09–0.13 mm (0.110–0.115, n=3; difficult to measure, proximal limit of tip difficult to distinguish); width 0.02–0.04 mm; lateral margins not curved dorsally; slender, needle-like, with circular cross-section, or slender, with extreme apex sagittate; without ridges or lobes; without elongate dorsolateral depressions apically; with minute serration, visible only with compound microscope, or with fine serrations; serrated part 0.15–0.25 times length of tip. Aculeus tip with serrations separated by less than width of serration. Spermathecae weakly sclerotized; ovoid.

Miscellaneous

Sex of recorded specimens: male and female. Species group: dentata group.

Biology and economic significance

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

Illustrations

• Habitus, female (dorsal). • Wing. • Terminalia, female.

Links

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