Anastrepha siculigera Norrbom & Uchôa, 2011

Norrbom, Allen L. & Uchôa, Manoel A., 2011, New species and records of Anastrepha (Diptera: Tephritidae) from Brazil, Zootaxa 2835, pp. 61-67 : 66-67

Anastrepha siculigera Norrbom & Uchôa , new species

Figs. 5 , 10–12

Diagnosis. In the key of Steyskal (1977) A. siculigera runs to A. minensis Lima (page 30) (= A. extensa Stone ), and in that of Zucchi (2000a) it runs to A. tenella Zucchi (1979) , in both of which the aculeus tip is very long. The descriptions of both species ( Lima 1937, Stone 1942, Zucchi 1979) are brief, but according to the illustrations of the aculeus, the tip is 3–4 times as long as wide in A. minensis and approximately 4.5 times as long as wide in A. tenella , whereas in A. siculigera it is more than 8 times as long as wide. Anastrepha siculigera also has the serrations of the aculeus tip much more widely spaced than in both of these species. It further differs from A. tenella in having slightly longer terminalia (oviscape length 2.55 mm, aculeus length 2.15, vs. 2.0 and 1.5 in A. tenella ), and although we were unable to evert the eversible membrane in the holotype of A. siculigera , it appears to have significantly fewer hook-like dorsobasal scales than A. minensis , which has more than 100.

Description. Mostly yellow to orange, with white to pale yellow markings. Setae moderate red brown.

Head: Yellow to orange except brown ocellar tubercle. Setae mostly lost; 4–5 alveoli for frontal setae; 2 alveoli for orbital setae, posterior seta apparently well developed. Ocellar seta weak, 1.5 times as long as ocellar tubercle. Facial carina, in profile, straight dorsally and medially. Antenna extended 0.8 distance to ventral facial margin.

Thorax: Mostly yellow to orange, without brown markings, with following areas white to pale yellow: postpronotal lobe and lateral margin of scutum bordering it; medial scutal vitta, slender except posterior fourth gradually expanded and rounded, extended laterally beyond acrostichal seta but less than half distance to dorsocentral seta; paired sublateral scutal vitta from transverse suture to posterior margin, including base of intra-alar seta; scutellum; dorsal margins of anepisternum and katepisternum; katepimeron; and most of anatergite and katatergite. Subscutellum and mediotergite entirely orange. Mesonotum 3.05 mm long. Postpronotal lobe, scutum and scutellum entirely microtrichose; scutal setulae yellowish. Chaetotaxy typical for genus. Katepisternal seta weak, almost half as long as anepisternal seta, but much weaker, orange brown.

Legs: Entirely yellow to orange.

Wing ( Fig. 5 ): Length 6.29 mm, width 2.72 mm, ratio 2.31. Apex of vein R1 at 0.55 wing length. Cell c 1.32 times as long as pterostigma; pterostigma 2.94 times as long as wide. Vein R2+3 not sinuous. Crossvein r-m at 0.67 distance from bm-cu to dm-cu on vein M. Vein M moderately curved apically; cell r4+5 1.03 times as wide at apex as at level of dm-cu. Cell bcu with distal lobe moderately long, length of bcu 1.52 times as long as anterior margin. Wing pattern yellow orange and orange brown. C-band mostly yellow orange; most of pterostigma and narrow distal margin of band in cells r1, r2+3 and br darker orange brown. C-band and S-band narrowly connected along vein R4+5, marginal hyaline area distal to apex of vein R1 subtrapezoidal, extended to vein R4+5, its apex aligned proximal to crossvein r-m. Hyaline area in cell br large and elongate, reaching vein R4+5 and ca. 2 times as long as distal colored area of cell; cell dm with basal hyaline area large. S-band with margins, except proximal margin in cell dm, mostly narrowly orange brown, and posterodistal half of band in cell cu1 orange brown; posterior margin with weak incision in cell cu1; distal section of band moderately broad, at apex of vein R2+3 0.58 times width of cell r2+3, even in width, well separated from apex of vein M, mostly orange, posterior margin and posterior part in cell r2+3 and most of area in cell r4+5 orange brown; hyaline area proximal to apex of band extending to vein R2+3. V-band complete, mostly orange brown, both arms faint in anterior two-thirds of cell r4+5; proximal arm mostly orange anterior to vein M and with broad medial orange area extending most of length of dm-cu, separated from S-band, relatively slender, and with basal extension along wing margin extending two-thirds distance to vein A1+Cu2; distal arm slen- der, connected to proximal arm and extending to vein R4+5.

Abdomen: Mostly orange, without brown markings.

Female terminalia: Oviscape 2.55 mm long, 0.84 times as long as mesonotum, straight in lateral view, entirely orange; spiracle at basal 0.35. Eversible membrane not dissected but with numerous hook-like scales. Aculeus ( Figs. 10–11 ) straight or slightly ventrally curved in lateral view, 2.15 mm long, 0.84 times oviscape length; in ventral view base strongly expanded, 0.17 mm wide; shaft 0.09 mm wide at midlength; tip ( Fig. 12 ) 0.75 mm long, 0.35 times aculeus length, 0.09 mm wide, 8.33 times as long as wide, 0.04 mm wide in lateral view, 0.44 times ventral width, in ventral view very elongate triangular, gradually tapered, lateral margin nearly straight; distal 0.43 with very widely spaced serrations (separated by 3–4 times width of single serration). Spermathecae not examined.

Distribution. Anastrepha siculigera is known only from Brazil (Amapá).

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

Type data. Holotype female ( UFGD USNMENT 00671878), BRAZIL: Amapá: Municipio Oiapoque, Clevelândia do Norte, 30°49'35"N 51°51'39"W, McPhail trap, 22 Mar 2003, R. B. R. Trinadade & M. A. Uchôa.

Etymology. The name of this species is derived from the Latin sicula, small dagger, and –gera, to bear or carry, in reference to the dagger-shaped aculeus tip.

Figures

FIGURES 1 – 5. Wings: 1, A. matogrossensis (holotype); 2, A. oiapoquensis (holotype); 3 – 4, A. rafaeli (Brazil: Chácara Arara Azul, USNMENT 00671865, USNMENT 00671867); 5, A. siculigera (holotype).

FIGURES 6 – 12. Female terminalia: 6 – 7, A. matogrossensis (holotype), aculeus and tip, ventral; 8 – 9, A. oiapoquensis (holotype), aculeus and tip, ventral; 10 – 12, A. siculigera (holotype), aculeus, lateral and ventral, and tip, ventral.