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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 leptozona Hendel

Morphology

Body. Setae dark brown to black.

Head. Frons without brown markings except ocellar tubercle. Occiput without brown marks. Orbital setae 2, or 1 (rarely). 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 3.25–4.2 mm (Stone 1942). 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. Scutum with 2 (sublateral) pale postsutural vittae, or with 3 (both medial and sublateral) pale postsutural vittae; pale medial vitta with posterior end ovoid, or with posterior end broadly quadrate; 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. Mediotergite entirely yellow to orange. Femora entirely yellow to orange. Fore femur with posterodorsal and ventral rows of well developed setae.

Wings. Wing length 6.9–9.1 mm (Stone 1942). 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 broad, extending distally into cells r1 and r2+3 at least to level of midlength of pterostigma. C-band and S-band separated (by hyaline band from cell bm to costal margin in cell r1). S-band extended anteriorly to vein R4+5 and covering all of crossvein r-m. Cell bm entirely hyaline or infuscated only along subapical fold. 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. 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 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; not connected to S-band in cell dm. V-band distal arm complete, or incomplete, not reaching vein R4+5, but extended from vein M to wing margin, or present only in cell m, or absent; isolated, not connected to proximal arm of V-band or to S-band (usually), or connected to proximal arm of V band. Pterostigma ratio 3.7–4.5. Ratio of costa length between apices of Sc and R1/length between apices of R1 and R2+3 0.45–0.55. 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. Epandrium posterodorsal margin evenly rounded. Epandrium in lateral view shorter than high, or longer than high. Lateral surstylus in posterior view short, somewhat boot-shaped, truncate and with apex slightly laterally projected. Phallus length 3.4–4.6 mm; ratio (phallus length/mesonotum length) 0.99–1.34. Glans present; without spinules. Oviscape straight; length 2.25–3.4 mm; length ratio (oviscape length/mesonotum length) 0.63–0.83. Eversible membrane with dorsobasal denticles all sclerotized, in continuous triangular to semicircular or suboval pattern. Aculeus length 2.05–3.1 mm. Aculeus in ventral view more or less parallel-sided except extreme base. Aculeus tip length 0.27–0.45 mm; width 0.12–0.17 mm; lateral margins not curved dorsally; gradually tapering, blade-like, with flattened cross-section; not flared outward at or proximal to base; without ridges or lobes; without elongate dorsolateral depressions apically; with fine serrations, or with medium sized serrations; serrated part 0.55–0.85 times length of tip. Aculeus tip serrations not extending onto dorsal side basally. Aculeus tip with serrations separated by less than width of serration. Spermathecae sclerotized; ovoid. Egg without lobe.

Miscellaneous

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

Biology and economic significance

This species is a pest of a variety of fruits, predominantly species of Sapotaceae, including caimito (Pouteria caimito (Ruiz & Pav.) Radlk.). The main damage is caused by the larvae, which feed inside the fruit. Refer to the Fruit Fly Databases for host plant information.

Illustrations

• Habitus, female (dorsal; painting). • Wing. • Terminalia, female (eversible membrane). • Terminalia, female (aculeus). • Terminalia, male. • Egg (SEM).

Links

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