Anastrepha lutea Stone

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 : 51-55

Anastrepha lutea Stone

Figs. 5–6 , 13–14 .

Anastrepha lutea Stone 1942: 95 [description, female; Panama]; Steyskal 1977: 27 [in key]; Norrbom et al. 1999a: 80 [catalog].

Anastrepha bellicauda Norrbom in Norrbom & Kim 1988: 168 [description, male]; Norrbom et al. 1999a: 77 [catalog; Venezuela]; Norrbom et al. 1999b: 321, 324; McPheron et al. 1999: 345. New synonymy.

Diagnosis. Anastrepha lutea also belongs to the schausi species group. The sexes are dimorphic in wing pattern and abdominal markings and setation. The male ( Fig. 14 ) is easily recognized from other Anastrepha species by its highly reduced wing pattern, which is mostly diffuse yellow, and by the pattern of brown markings and clusters of large setae on the abdomen. The female ( Fig. 13 ) differs from other species of the schausi group in having the C- and S- bands broadly connected along vein R4+5. It was included in the key of Steyskal (1977).

Description. Mostly yellow to orange. Setae dark brown to black. Body length: female 9.0–11.0 mm, male 6.5–8.0 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. 3–4 frontal setae. Usually 2 orbital setae (posterior seta absent on 1 side in 2 specimens and on both sides in 2 of 18 specimens). Ocellar seta weak, 1–2 times as long as ocellar tubercle. Antenna extended 0.60–0.75 distance to ventral facial margin. Arista short pubescent.

Thorax ( Figs. 13–14 ): Mostly yellow to orange, without brown markings; postpronotal lobe, scutellum except base of disc, scutal vittae and dorsal margin of anepisternum white; medial scutal vitta slender, slightly broadened and rounded posteriorly, extended laterally to or slightly beyond acrostichal seta. Mesonotum 2.90–3.75 mm long. Scutum, postpronotal lobe, notopleuron and scutellum entirely microtrichose. Scutal setulae mostly yellow, brownish laterally. Chaetotaxy as usual for genus, katepisternal seta paler and weaker than other setae but moderately long, 2/3 to as long as postocellar seta.

Wing ( Figs. 5–6 ): Length 6.7–8.5 mm, width 2.55–3.35 mm, ratio 2.47–2.73. Cell c 1.11–1.23 times as long as pterostigma. Apex of vein R1 at 0.53–0.58 wing length. Vein R2+3 nearly straight. Vein M weakly curved apically; cell r4+5 0.96–1.14 times as wide at apex as at level of dm-cu. Crossvein r-m at 0.66–0.70 length of cell dm, ratio of second to third sections of vein M 1.96–2.31. Distal lobe of cell bcu moderately long, bcu 1.43–1.57 times as long as its anterior margin. Pattern strongly sexually dimorphic. In male ( Fig. 6 ) mostly hyaline with diffuse, pale yellow basal area of varying extent, usually covering cells bc, c, pterostigma, bm, bcu, base of cu1, and cells r2+3, br, and dm to level of crossvein r-m or slightly beyond, br usually with hyaline area posterior to pterostigma; crossvein dm-cu sometimes narrowly bordered with faint yellow. In female ( Fig. 5 ; Stone 1942, pl. 20A) pattern of more typical Anastrepha type, mostly yellow to orange brown, posterior margin of base of S-band in cell cu1, sometimes extending to vein R4+5, distal part of S-band, and proximal arm of V-band posterior to vein M darker. C- and S-bands broadly connected along vein R4+5, hyaline area distal to apex of vein R1 with somewhat diffuse margins and usually rounded or irregular in shape, extending only to or slightly posterior to vein R2+3. S-band extended basally into posterior 1/4–1/2 and distal margin of cell bm; distal section moderately broad, at apex of vein R2+3 0.57–0.74 times width of cell r2+3; narrowly separated from or just reaching apex of vein M. V-band separated from S-band, incomplete, distal arm absent at least posteriorly, if present anteriorly broad and diffuse, without hyaline area between it and vein M; proximal arm extended basally along posterior wing margin more than half distance from vein Cu1 to vein A1+Cu2 but not connected to base of S-band. In male microtrichose except cell bc, extreme base of br (proximal to crossvein h), alula, and sometimes anterior and/or posterior areas in bcu or very small basal area in cell cu1. In female microtrichose except cell bc, base and posterior 1/4–2/3 of cell c, extreme base (proximal to crossvein h) and posterior margin of subapical hyaline area of br, bm except distal and usually posterior margin, small basal or anterobasal area in dm, anteriorly and posteriorly in cell bcu (broadly to narrowly microtrichose along medial fold), very small basal area in cu1, small narrow anterobasal area in a1, and most or all of alula.

Male abdomen ( Fig. 14 ): Syntergite 1+2 mostly yellow to orange fading to white posteriorly. Tergites 3 and 4 with dark brown band on basal half, sometimes weakly and narrowly divided medially; white posteriorly. Tergite 5 dark brown on lateral 1/3–2/5, separated by white area slightly to strongly tapered posteriorly. White areas of all tergites with dense silvery white microtrichia. Brown areas of tergite 5 nonmicrotrichose. Setae on lateral margins of tergites 3 and 4, lateral and apical margins and on brown areas of tergite 5 large and stout. Lateral surstylus in posterior view elongate triangular, medial margin convex to very slightly concave, lateral margin slightly concave subapically, apex acute. Proctiger without lateral fold separating sclerotized areas. Phallus 4.95–5.50 mm long; 1.41–1.90 times as long as mesonotum. Glans 0.60–0.65 mm long.

Female abdomen ( Fig. 13 ): Tergites yellow to orange with posterior margins white, in Panama females tergite 3 with pair of narrow, diffuse brown bands on lateral 1/4–1/3 on basal half; basal, lateral parts of tergites 4 and 5 also slightly darker. Tergites mostly microtrichose but without denser, silvery white microtrichia; tergites 3–5 with nonmicrotrichose band at midlength on lateral 1/3–2/5. Oviscape 3.20–3.85 mm long, 0.97– 1.19 times as long as mesonotum, entirely yellow to orange; spiracle at basal 0.28–0.32. Eversible membrane with about 35 long, slender, hook-like dorsobasal scales in triangular to semicircular pattern. Aculeus 2.95– 3.70 mm long; base 0.19–0.23 mm wide; shaft 0.085–0.105 mm wide at midlength; tip ( Stone 1942, fig. 19A) 0.21–0.27 mm long, 0.100– 0.105 mm wide, 2.10–2.57 times as long as wide, nonserrate, gradually tapered. Spermathecae elongate ovoid.

Type data. A. lutea : Holotype Ψ (National Museum of Natural History, Washington, DC ( USNM USNMENT 00212764), PANAMA: Panamá: El Cermeño [8°44'N 79°51'W], Fruit fly trap, 3 Oct 1939, J. Zetek 4553. A. bellicauda : Holotype ɗ ( USNM USNMENT 00212763), PANAMA: El Cermeño, Fruit fly trap, Dec 1939 – Jan 1940, J. Zetek 4621.

Other specimens examined. PANAMA: Panamá: El Cermeño, 5 Dec 1939, J. Zetek 4600, 1Ψ paratype ( USNM USNMENT 00212765); El Cermeño, Fruit fly trap, 12 Nov 1940, J. Zetek 4701, 1Ψ ( USNM USNMENT 00212766). VENEZUELA: Trujillo: La Chira, 9°12'54"N 70°51'23"W, 300 m., emerged 15 Jul 1995, reared ex fruit of "cusco", K. P. Katiyar & J. Oroño MFAKP-00913, 8ɗ8Ψ ( USNM USNMENT 00048639-54).

Biology. In Venezuela K. P. Katiyar and colleagues reared A. lutea from fruit of a plant identified only as “cusco”, probably a species of Sapotaceae (K. P. Katiyar, pers. comm.).

Distribution. Anastrepha lutea is known only from Panama and Venezuela.

Comments. Norrbom described A. bellicauda from a male, presuming that the conspecific female would have the C- and S-bands of the wing separated as in other species of the schausi group, but the reared series from Venezuela indicates that it is conspecific with A. lutea , previously known only from females.

Figures

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 13 – 14. Anastrepha lutea, habitus (Venezuela: La Chira): 13, female (USNMENT 00048654); 14, male