Anastrepha fuscata, Norrbom & Korytkowski, 2009

Norrbom, Allen L. & Korytkowski, Cheslavo A., 2009, A revision of the Anastrepha robusta species group (Diptera: Tephritidae) 2182, Zootaxa 2182 (1), pp. 1-91 : 29-30

publication ID 10.11646/zootaxa.2182.1.1


persistent identifier

treatment provided by


scientific name

Anastrepha fuscata

new species

Anastrepha fuscata , new species

Figs. 6 View FIGURES 5–9 , 40 View FIGURES 30–41 , 75 View FIGURES 73–81 , 118–119 View FIGURES 108–130

Diagnosis. Anastrepha fuscata differs from other species of Anastrepha except A. amaryllis , A. furcata , and A. robusta in having the aculeus strongly dorsally curved. It differs from the latter two species in having a longer aculeus tip (0.38 mm long vs. 0.21–0.28 in the other 2 species). It further differs from A. robusta in having the wing pattern more extensively brown and the margins of the aculeus tip convex. The subscutellum has a dark brown lateral mark, which is lacking in A. robusta and variable in A. furcata (present to varying extent in Panamanian specimens). We have not examined A. amaryllis , but it appears to differ in having a more extensively orange wing pattern and longer terminalia (oviscape 3.43 mm long, aculeus 2.59 mm long vs. 2.3 mm and 2.1 in A. fuscata ).

Description. Mostly yellow to orange, with white to pale yellow markings. Setae dark brown to black.

Head: Yellow to orange except brown ocellar tubercle. 4–5 frontal setae; 2 orbital setae, posterior seta well developed. Ocellar seta weak, 1.5 times as long as ocellar tubercle. Facial carina, in profile, straight dorsally and medially. Antenna extended 0.60 distance to ventral facial margin.

Thorax ( Fig. 6 View FIGURES 5–9 ): Mostly orange with following areas white: postpronotal lobe; inverted T-shaped medial vitta, posterior part extended laterally to dorsocentral seta; paired sublateral scutal vitta from transverse suture to posterior margin, including intra-alar seta; entire scutellum; dorsal margin of anepisternum; dorsal margin of katepisternum; katepimeron; and most of anatergite and katatergite. Posterior margin of scutum with dark brown band, with straight anterior margin, not extended to acrostichal seta, ending laterally at sublateral white vitta, not extended to intra-alar seta. Subscutellum orange with dark brown dorsolateral mark; mediotergite entirely orange. Mesonotum 4.87 mm long. Scutum and scutellum entirely microtrichose; setulae orange, brownish laterally and on scutellum. Katepisternal seta weak, pale brown, 0.33 as long as anepimeral seta.

Wing ( Fig. 40 View FIGURES 30–41 ): Length 10.1 mm, width 4.2 mm, ratio 2.40. Apex of vein R 1 at 0.54 wing length. Cell c 1.47 times as long as pterostigma; pterostigma 3.0 times as long as wide. Vein R 2+3 without sharp bends or undulations. Crossvein r-m at 0.63 distance from bm-cu to dm-cu on vein M. Vein M very strongly curved apically; cell r 4+5 0.72 times as wide at apex as at level of dm-cu. Cell bcu with distal lobe moderately long, length of bcu 1.85 times as long as anterior margin. Wing pattern mostly moderate to dark brown and orange. C-band with cell bc yellowish; cell c yellowish basally and anteriorly, anterodistal corner brown, posteriorly with elongate medial subhyaline area; cell r 1 with small orange, distally mottled area posterior to bend in vein Sc, extended to 0.25 length of pterostigma; remainder of band in pterostigma, r 1, r 2+3, and br dark brown. C-band and S-band broadly connected along vein R 4+5; hyaline area in cell br small, not reaching vein R 4+5 and 0.8 times as long as distal brown area of cell; cell dm with basal hyaline area moderately large. Basal half of S-band mostly brown, with large medial orange area broadly bordering crossvein r-m and extending into anterior 0.67 of cell dm, broadly reaching proximal margin of band in dm; posterior margin with distinct incision in cell cu 1; distal section of S-band mostly moderate brown with orange medial areas in cells r 1 and r 2+3, moderately broad, at apex of vein R 2+3 0.70 times width of cell r 2+3, broadening in cell r 2+3, extended to apex of vein M; hyaline area proximal to it ending at vein R 2+3. Hyaline basomarginal spot in cell r 1 narrowly triangular, distal side slightly elongated, extended to R 4+5, its apex aligned proximal to crossvein r-m. V-band complete, mostly brown, broadly connected to S-band in cell r 2+3; proximal arm with slender medial orange area bordering anterior 0.20 of dm-cu and extending into cell r 4+5, reaching R 4+5; proximal arm moderately broad anteriorly, gradually broadening posteriorly, with basal extension along wing margin, at level of vein M 1.6 times as wide as distal arm and as wide as hyaline area proximal to it in cells r 4+5 and dm; distal arm slender, narrowly connected to proximal arm.

Abdomen: Mostly orange, without brown markings.

Male terminalia: Unknown.

Female terminalia: Oviscape ( Fig. 6 View FIGURES 5–9 ) 2.30 mm long, 0.47 times as long as mesonotum; dark orange, paler on basal half ventrally; spiracle at basal 0.48. Eversible membrane ( Fig. 75 View FIGURES 73–81 ) with ca. 9 moderately long hooklike dorsobasal scales in 1 irregular row distal to similar number of smaller, stouter scales. Aculeus ( Fig. 118–119 View FIGURES 108–130 ) slightly and gradually dorsally curved ca. 15° in lateral view, 2.10 mm long; base expanded, 0.25 mm wide; shaft 0.065–0.11 mm wide at midlength; tip ( Fig. 75 View FIGURES 73–81 ) 0.38 mm long, 0.09 mm wide, 4.22 times as long as wide, 0.08 mm wide in lateral view, 0.89 times ventral width, in ventral view gradually tapered, nonserrate. Spermathecae not examined.

Distribution. Anastrepha fuscata is known only from Peru (Huánuco).

Biology. The host plants and other aspects of the biology of this species other than date of capture of adults are unknown.

Type Data. Holotype female ( SENASA; USNMENT00212047 ), PERU: Huánuco: Huallaga Central, Aucayacu, Pueblo Nuevo , Puerto Angel , UTM: E 18L-0383700, N 8992958, 595 m, 18 Oct 2006, Trampa 01-01-02-022-MP.

Etymology. The name of this species is an adjective meaning dark, in reference to its dark wing pattern.