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Key to the Species of the Anastrepha serpentina Species Group

Copied from Norrbom (2002)

1. Wing with C-band and S-band well separated; middle section of S-band very narrow, distal section broad; proximal arm of V-band connected along posterior wing margin to basal extension of S-band along vein A1+Cu2. Thorax with darker areas mostly brown. Oviscape 3.40-3.95 mm long. Aculeus tip broadly triangular. Colombia, Ecuador, Peru. . . . . . . . . A. ornata Aldrich

Anastrepha ornata, female habitus, dorsal, drawing (75196 bytes) Anastrepha ornata, wing, photo (62452 bytes)
A. ornata, female habitus, dorsal. Wing.

- C-band and S-band connected or at most very narrowly separated; middle section of S-band broad, or if narrow, distal section also narrow; proximal arm of V-band not connected to basal extension of S-band along posterior wing margin except sometimes in A. pulchella. Other characters variable. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. Wing cell br with hyaline area posterior to pterostigma broadly extended to vein R4+5. Abdomen with all tergites mostly yellow to orange, without brown markings. Thoracic pleuron without brown areas. Epandrium with narrow, V-shaped, medial indentation in dorsal posterior margin; lateral surstylus with rounded subapical lateral lobe. Aculeus tip broadly triangular, at least 0.17 mm wide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Anastrepha striata, wing, photo (35578 bytes) Anastrepha bistrigata, wing, photo (62774 bytes)
Wing, A. striata. Wing, A. bistrigata.

- Cell br entirely infuscated or with hyaline area not extended to vein R4+5. Abdomen with brown bands or spots on at least syntergite 1+2 and tergite 3, or more extensively brown. Thoracic pleuron usually with at least anepimeron partially brown (orange in A. ocresia). Epandrium with dorsal posterior margin evenly rounded or at most with slight indentation; lateral surstylus without rounded subapical lateral lobe. Aculeus tip variable in shape. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Anastrepha normalis wing, photo (62251 bytes) Anastrepha pulchra wing, photo (64927 bytes)
Wing, A. normalis. Wing, A. pulchra.

3. Oviscape less than 2.8 mm long, less than 0.90 times mesonotum length. Aculeus less than 2.5 mm long. Scutum with brown areas usually interrupted at transverse suture; setulae usually strongly contrasting white and dark brown, absent on narrow area lateral to postsutural nonmicrotrichose area. Distal section of S-band slightly narrowed to moderately broad, at apex of vein R2+3 0.44-0.63 times width of cell r2+3. Widespread, Mexico to Bolivia and Brazil. . . . . . . . . . . . . . . . . . A. striata Schiner

Anastrepha striata, female body, dorsal, drawing (33638 bytes) Anastrepha striata, wing, photo (32998 bytes)
A. ornata, female habitus, dorsal. Wing.

- Oviscape more than 3.0 mm long, more than 0.90 times mesonotum length. Aculeus more than 3.0 mm long. Scutum with brown area narrowed but uninterrupted at transverse suture; setulae yellow and brown, less dense but more or less continuous lateral to postsutural nonmicrotrichose area. Distal section of S-band slender, at apex of vein R2+3 0.36-0.44 times width of cell r2+3. Southern Brazil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. bistrigata Bezzi

Anastrepha bistrigata, female habitus, dorsal, drawing (81519 bytes) Anastrepha bistrigata, wing, photo (62774 bytes)
A. bistrigata, female habitus, dorsal. Wing.

4. Wing with C-band and S-band very broadly connected basally, cell br without hyaline area in apical half; C-band with yellow area posterior to pterostigma small, not extending beyond cell r1 or level of basal third of pterostigma; ratio of length of section of vein M between crossveins R-M and DM-Cu: length of DM-Cu 0.48-0.69; distal section of S-band slender, its width at apex of vein R2+3 less than 0.45 width of cell r2+3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Anastrepha anomoiae wing, photo  (57090 bytes) Anastrepha pulchra wing, photo (64927 bytes)
Wing, A. anomoiae. Wing, A. pulchra.

- C-band and S-band less broadly connected, cell br with at least a small hyaline area in apical half; C-band with yellow area posterior to pterostigma large, extending into cells r1 and r2+3 at least to level of midlength of pterostigma; ratio of length of section of vein M between crossveins R-M and DM-Cu: length of DM-Cu 0.68-0.91; distal section of S-band variable in width.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Anastrepha normalis wing, photo (62251 bytes) Anastrepha serpentina wing, photo (25301 bytes)
Wing, A. normalis. Wing, A. serpentina.

5. Wing with proximal arm of V-band with anterior end more proximal than posterior end and connected to S-band near middle of crossvein R-M; posterior end not extended basally along posterior wing margin. Aculeus 3.66 mm long; tip 0.86 mm long, serrate only on apex. Panama, Colombia. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. anomoiae Norrbom

Anastrepha anomoiae wing, photo  (57090 bytes) Anastrepha anomoiae, aculeus tip, ventral, drawing (17599 bytes)Anastrepha anomoiae, aculeus extreme apex, ventral, drawing (16982 bytes)
Wing, A. anomoiae. Aculeus tip, ventral; and apex, enlarged.

- Proximal arm of V-band with anterior end at least slightly more distal than posterior end, and separated from S-band or connected along vein R4+5; posterior end extended basally along posterior wing margin. Aculeus 4.00-5.70 mm long; tip less than 0.50 mm long, nonserrate or more than half serrate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Anastrepha pulchella wing, photo (59208 bytes) Anastrepha pulchra wing, photo (64927 bytes)
Wing, A. pulchella. Wing, A. pulchra.

6. Wing cell r1 with hyaline spot between S-band and vein R2+3; apex of proximal marginal hyaline spot in cell r1 aligned proximal to crossvein R-M. Orbital plate yellow. Aculeus tip 0.24-0.26 mm long, more than half serrate. Panama. . . . . . . . . . . . . . . . . . . . . A. pulchella Norrbom

Anastrepha pulchella wing, photo (59208 bytes) Anastrepha pulchella, aculeus tip, ventral, drawing (29542 bytes)
Wing, A. pulchella. Aculeus tip, ventral.

- Cell r1 without hyaline spot between S-band and vein R2+3; apex of marginal hyaline spot in cell r1 aligned with or distal to crossvein R-M. Orbital plate with triangular brown mark. Aculeus tip 0.33-0.46 mm long, nonserrate. Panama, Venezuela, n. Brazil.  . . . . . . . . . . . . . . . . . . . . A. pulchra Stone

Anastrepha pulchra wing, photo (64927 bytes) Anastrepha pulchra, aculeus tip, ventral, drawing (25515 bytes)
Wing, A. pulchra. Aculeus tip, ventral.

7. Mesonotum with brown areas extensive, extending to or nearly to anterior margin of scutum. Scutum microtrichose except presutural medial bare area. Wing with distal section of S-band slender to moderately broad, at apex of vein R2+3 0.32-0.64 times width of cell r2+3; distal arm of V-band usually absent (except in sp. from Mexico). . . . . . . . . . . . . . . . . . . . . . . . . . 8
- Mesonotum with brown markings only near scuto-scutellar suture. Scutum without microtrichia except on extreme lateral margin. Wing with distal section of S-band very broad, at apex of vein R2+3 at least 0.73 times width of cell r2+3; distal arm of V-band present from vein M to posterior wing margin. Greater Antilles, USA (southern Florida). . . . . . A. ocresia (Walker)

Anastrepha ocresia, female head, thorax and abdomen, dorsal, drawing (31792 bytes) Anastrepha ocresia, wing, photo (63634 bytes)
A. ocresia, female head, thorax and abdomen, dorsal. Wing.

8. Abdomen orange with brown bands on syntergite 1+2, tergite 3, and sometimes tergite 4. Wing with distal section of S-band usually slightly narrowed to moderately broad, at apex of vein R2+3 0.47-0.64 times width of cell r2+3, rarely (Brazilian anomala) more slender. Oviscape 3.70-5.51 mm long, 1.02-1.56 times mesonotum length. Aculeus tip variable. . . . . . . . . . . . . 9
- Abdomen mostly brown with T-shaped medial yellow mark. Distal section of S-band slender, at apex of vein R2+3 0.32-0.43 times width of cell r2+3. Oviscape 2.58-3.91 mm long, 0.79-1.02 times mesonotum length. Aculeus tip 0.37-0.46 mm long, 0.14-0.17 mm wide, finely serrate on more than distal half. Widespread, Mexico to Argentina. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  A. serpentina (Wiedemann)

Anastrepha serpentina, female abdomen, dorsal, drawing (21928 bytes) Anastrepha serpentina wing, photo (25301 bytes)
Abdomen, female, A. serpentina Wing.

9. Wing with distal arm of V-band complete. Southern Mexico. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Anastrepha sp.

Anastrepha sp., wing, photo (71837 bytes)
Wing, Anastrepha sp.

- Distal arm of V-band absent or at most consisting of small, faint spot in cell m. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Anastrepha normalis wing, photo (67584 bytes) Anastrepha pseudanomala wing, photo (63685 bytes)
Wing, A. normalis. Wing, A. pseudanomala.

10. Wing with middle section of S-band entirely brown anterior and distal to crossvein R-M. Oviscape 3.70-5.51 mm long, 1.02-1.56 times mesonotum length. Aculeus 3.62-5.51 mm long; tip more than 2 times as long as wide, finely serrate on distal half or more (except some Brazilian anomala), 0.19-0.40 mm long. Lateral surstylus sometimes with strong basolateral lobe. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Anastrepha anomala wing, photo (63836 bytes) Anastrepha pseudanomala wing, photo (63685 bytes)
Wing, A. anomala. Wing, A. pseudanomala.

- Middle section of S-band mostly orange, including anterior and distal to crossvein R-M, brown only narrowly on margins. Oviscape 3.79-4.41 mm long, 1.07-1.21 times mesonotum length. Aculeus 3.62-4.14 mm long; tip less than 2 times as long as wide, nonserrate, 0.23-0.28 mm long. Lateral surstylus without strong basolateral lobe. Panama, Venezuela.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A. normalis Norrbom

Anastrepha normalis wing, photo (67584 bytes) Anastrepha normalis, aculeus tip, ventral, drawing (29732 bytes)
Wing, A. normalis. Aculeus tip, ventral.

11. Aculeus tip 0.09-0.12 mm wide, gradually tapered. Oviscape 4.49-5.51 mm long, 1.44-1.56 times mesonotum length (except 3.70 mm long, 1.02 times mesonotum in Bahia, Brazil female). Aculeus usually 4.37-5.51 mm long (3.62 mm long in Bahia female). Lateral surstylus with strong basolateral lobe. Panama, Brazil. . . . . . . . . . . . . . . . . . . . . . . . A. anomala Stone

Anastrepha anomala, Panama, aculeus tip, ventral, drawing (27698 bytes)Anastrepha anomala, Brazil: Bahia, aculeus tip, ventral, drawing (23250 bytes)Anastrepha anomala, Brazil: Maranhao, aculeus tip, ventral, drawing (22554 bytes) Anastrepha anomala, Panama, male terminalia, drawing  (65822 bytes)
Aculeus tip, ventral, A. anomala: Panama; Brazil, Bahia; Maranhao. Epandrium and surstyli, Panama.

- Aculeus tip 0.15 mm wide, with nonserrate basal part nearly parallel sided. Oviscape 4.11-4.28 mm long, 1.11-1.18 times mesonotum length. Aculeus 4.16 mm long. Male unknown. Costa Rica, Panama. . . . . . . . . . . . . A. pseudanomala Norrbom

Anastrepha pseudanomala, aculeus tip, ventral, drawing (33559 bytes)
Aculeus tip, ventral, A. peudanomala.

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Content by Allen L. Norrbom. Last Updated: February 4, 2003.