Anastrepha fuscicauda Norrbom & Korytkowski

Norrbom, Allen L. & Korytkowski, Cheslavo A., 2007, A new species, new synonymy, and taxonomic notes in the Anastrepha schausi group (Diptera: Tephritidae), Zootaxa 1497, pp. 47-55 : 48-51

Anastrepha fuscicauda Norrbom & Korytkowski , new species

Figs. 1–4, 6–12 .

Diagnosis. This species belongs to the schausi species group, which also includes A. fernandezi Caraballo , A. hermosa Norrbom , A. lutea Stone , and A. schausi Aldrich. This group was recognized by Norrbom & Kim (1988) and Norrbom et al. (1999b) based on three synapomorphies: glans of male with minute spines apically ( Fig. 12 ); facial carina weak; and lateral surstylus acute, lateral margin usually slightly concave ( Fig. 11 ). Anastrepha fuscicauda shares these character states and also belongs in this group. The male differs from those of the other species of the schausi group in lacking dense areas of silvery white microtrichia on the abdomen and in abdominal color pattern ( Fig. 2 ): it has tergite 5 mostly dark brown unlike A. schausi , but lacks brown markings on other tergites as in A. fernandezi , A. hermosa , and A. lutea . Males further differ from those of A. fernandezi , A. hermosa , and A. schausi in lacking brown or white markings on the face. The female resembles that of A. fernandezi and presumably those of A. hermosa and A. schausi , which are unknown, in having the C- and S-bands widely separated, setae dark brown to black, and the aculeus tip nonserrate, but it has much shorter terminalia (oviscape less than 3.0 mm long, vs. greater than 4.0 mm in the other species). In the key of Steyskal (1977), it will run to A. insulae Stone (p. 15), but it differs in having vein M weakly curved apically and not reaching the apex of the S-band.

Description. Mostly yellow to orange. Setae dark brown to black. Body length: female 8–9 mm, male 6.0– 7.5 mm.

Head: Yellow to orange except ocellar tubercle brown. Face entirely microtrichose and without white or brown markings in either sex, ventral margin not expanded laterally, carina weak, in profile concave. 2–4 (usually 3) frontal setae. 2 orbital setae (in all 7 specimens). Ocellar seta weak to moderately developed (sometimes almost as stout as postocellar seta), 1–2 times as long as ocellar tubercle. Antenna extended 0.67– 0.85 distance to ventral facial margin. Arista short pubescent.

Thorax ( Figs. 1–2 ): Mostly yellow to orange, without brown markings; postpronotal lobe, apex and sides of scutellum, scutal vittae and dorsal margin of anepisternum white; medial scutal vitta slender, slightly broadened and rounded posteriorly, extended laterally beyond acrostichal seta but not reaching level of dorsocentral seta. Mesonotum 2.50–3.00 mm long. Scutum nonmicrotrichose except lateral to supra-alar seta; postpronotal lobe, notopleuron and scutellum entirely microtrichose. Scutal setulae yellow anteromedially, brown laterally. Chaetotaxy as usual for genus, katepisternal seta paler and weaker than other setae but well developed, longer than postocellar seta.

Wing ( Figs. 3–4 ): Length 5.75–7.00 mm, width 2.40–2.75 mm, ratio 2.40–2.61. Cell c 1.05–1.13 times as long as pterostigma. Apex of vein R1 at 0.54–0.58 wing length. Vein R2+3 nearly straight. Vein M weakly curved apically; cell r4+5 1.09–1.20 times as wide at apex as at level of dm-cu. Crossvein r-m at 0.67–0.71 length of cell dm, ratio of second to third sections of vein M 2.06–2.47. Distal lobe of cell bcu moderately long, bcu 1.40–1.49 times as long as its anterior margin. Pattern mostly orange brown; posterior part of base, margins of middle part, and apex of S-band and posterior parts of V-band darker brown. C- and S-bands separated by hyaline area from cell bm to costa distal to apex of vein R1, hyaline area occasionally slightly narrowed along veins R2+3 or R4+5. S-band extended basally into posterior 1/3–1/2 of cell bm; distal section moderately broad, at apex of vein R2+3 0.66–0.76 times width of cell r2+3; not extended to apex of vein M. Vband separated from S-band, in 2 specimens with short extensions along vein R4+5; usually complete, distal arm rarely (1 male) narrowly isolated from proximal arm and vein R4+5; proximal arm extended basally along posterior wing margin almost to vein A1+Cu2 but not connected to base of S-band. Microtrichose except cell bc, posterior half of cell c (except apex and subbasal fold), extreme base (proximal to crossvein h) and part (varying from small basal area to most) of subapical hyaline area of br, anterior 1/2–2/3 (hyaline part) of bm, most of small basal hyaline area in dm, most of bcu (microtrichose only along medial fold and often along anterior margin), very small basal area in cu1, very small anterobasal area in a1, and most or all of alula.

Abdomen ( Figs. 1–2 ): Tergites yellow to orange with posterior margins paler, except male tergite 5 mostly dark brown, yellow on extreme base and usually on lateral margin. Microtrichial pattern partially obscured by debris in most of type series, but tergites apparently mostly nonmicrotrichose except basal half of syntergite 1+2 and basal margins of other tergites, sometimes extending farther medially on syntergite 1+2 and tergites 3 and 4.

Male terminalia: Lateral surstylus ( Fig. 11 ) in posterior view elongate triangular, medial margin convex, lateral margin slightly concave subapically, apex acute. Proctiger without lateral fold separating sclerotized areas. Phallus 2.50–2.85 mm long; 1.40–1.64 times as long as mesonotum. Glans ( Fig. 12 ) 0.59–0.62 mm long.

Female terminalia: Oviscape ( Figs. 1 , 7 ) 2.65–2.95 mm long, 0.99–1.09 times as long as mesonotum, yellow basally, apical 2/5 to 1/2 dark brown; spiracle at basal 0.29–0.36. Eversible membrane ( Fig. 8 ) with 40–50 long, slender, hook-like dorsobasal scales in triangular to semicircular pattern. Aculeus ( Fig. 9 ) 2.30–2.65 mm long; base 0.19–0.22 mm wide; shaft 0.09–0.10 mm wide at midlength; tip ( Fig. 10 ) 0.29–0.33 mm long, 0.11 mm wide, 2.64–3.00 times as long as wide, nonserrate, gradually tapered.

Type data. Holotype Ψ ( USNM USNMENT 00214102), PANAMA: Panamá: Parque Nacional Chagres, Altos de Pacora, 9°15'28"N 79°21'24"W, Desvio, trap 553, 28 Jun 2002, C. A. Korytkowski. Paratypes: PAN- AMA: Panamá: Same data as holotype, 2ɗ1Ψ ( USNM USNMENT 00214100-101, USNMENT 00214103), 1ɗ ( MEUP); same, McPhail trap 529, 13 May 2005, C. A. Korytkowski, 1ɗ2Ψ ( USNM USNMENT 00212778- 780), 1ɗ1Ψ ( MEUP); Altos de Pacora, Villa Myrtha, trap 568a, 5 Sep 1997, C. A. Korytkowski, 2Ψ ( USNM USNMENT 00214025-026), 1Ψ ( MEUP); Parque Nacional Chagres, Cerro Pelon, trap 515a, 13 Jun 1999, C. A. Korytkowski, 1ɗ ( USNM USNMENT 00214104).

Biology. The host plants of this species are unknown. Adults were trapped in May, June, and September.

Distribution. Anastrepha fuscicauda is known only from Panama.

Etymology. The name of this species is a noun referring to the brown apex of the male abdomen.

Figures

FIGURES 1 – 2. Anastrepha fuscicauda, habitus (Panama: Altos de Pacora): 1, female (Panama: Altos de Pacora,

FIGURES 3 – 6. Wings: 3 – 4, Anastrepha fuscicauda (Panama: Altos de Pacora, USNMENT 00212780; Cerro Jefe, USNMENT 00214104); 5, A. lutea, female (Venezuela: La Chira, USNMENT 00048651); 6, A. lutea, male (holotype, A.

FIGURES 7 – 12. Anastrepha fuscicauda, terminalia (Panama: Altos de Pacora): 7, oviscape; 8, eversible membrane, dorsal (USNMENT 00212780); 9, aculeus, ventral (USNMENT 00212778); 10, aculeus tip, ventral; 11, epandrium and