Anastrepha disticrux, 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 : 22-23

Anastrepha disticrux , new species

Figs. 3 , 32 , 70 , 113

Diagnosis. Anastrepha disticrux differs from most species of Anastrepha in having crossvein r-m more than 0.7 times the distance from bm-cu to dm-cu. It differs from other species with that wing character in having the distal arm of the V-band complete and connected to the proximal arm and the scutum mostly nonmicrotrichose. It is similar to A. cryptostrepha in the latter two characters and in relative terminalia length, but differs in having the basomarginal hyaline mark in cell r 1 extending into cell r 2+3 and with its apex aligned proximal to crossvein r-m.

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

Head: Yellow to orange except ocellar tubercle brown. 3–4 frontal setae; 2 orbital setae (1 on right side), posterior seta well developed. Ocellar seta weak, 1.2 times as long as ocellar tubercle. Facial carina, in profile, straight dorsally and medially. Antenna extended 0.71 distance to ventral facial margin.

Thorax ( Fig. 3 ): Mostly yellow to orange. Typical white or pale yellow areas (postpronotal lobe; paired sublateral scutal vitta from transverse suture to intra-alar seta; medial scutal vitta; entire scutellum; dorsal margin of anepisternum; katepimeron; and most of anatergite and katatergite) not differentiated in dried specimens examined, probably present in live or fluid preserved material. Scutum without brown markings. Subscutellum and mediotergite entirely orange. Mesonotum 2.31 mm long. Scutum microtrichose only lateral to intra-alar line posterior to transverse suture; scutellum entirely microtrichose; setulae mostly yellow to orange. Katepisternal seta weak, yellowish, slightly longer than postocellar seta.

Wing ( Fig. 32 ): Length 5.98 mm, width 2.40 mm, ratio 2.49. Apex of vein R 1 at 0.60 wing length. Cell c 0.83 times as long as pterostigma; pterostigma 5.31 times as long as wide. Vein R 2+3 without sharp bends or undulations. Crossvein r-m at 0.73 distance from bm-cu to dm-cu on vein M. Vein M only slightly curved apically; cell r 4+5 1.13 times as wide at apex as at level of dm-cu. Cell bcu with distal lobe relatively short, length of bcu 1.32 times as long as anterior margin. Wing pattern mostly orange and brown. C-band with cell bc yellowish; cell c mostly mottled orange brown, apex dark brown. Pterostigma and anterior half of band in cell r 1 dark brown; remainder of band in cells r 1 and r 2+3 orange except narrow distal margin. Cell c entirely microtrichose. C-band and S-band narrowly connected along vein R 4+5; hyaline area in cell br elongate, oblique, reaching vein R 4+5, 1.3 times as long as distal colored area of cell; cell dm with basal hyaline area relatively small, but extending to posterior margin. Basal half of S-band mostly orange with narrow brown margins, except proximal margin in cell dm orange and distal margin in dm broadening posteriorly and dark brown; most of band in cell cu 1 dark brown; posterior margin without incision in cell cu 1; distal section of band orange, with anterior margin broadly and posterior margin narrowly brown; moderately broad, at apex of vein R 2+3 0.79 times width of cell r 2+3, even in width, well separated from apex of vein M; hyaline area proximal to it narrowly separated from vein R 2+3. Hyaline basomarginal spot in cell r 1 triangular with blunt apex, 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 medial orange area from apex to near posterior end of dmcu, darkening to orange brown bordering dm-cu; proximal arm moderately broad, gradually broadening posteriorly, with long basal extension along wing margin, at level of vein M 1.38 times as wide as distal arm and 1.10 times as wide as hyaline area proximal to it in cells r 4+5 and dm; distal arm slender, orange brown medially anterior to vein M.

Abdomen: Mostly orange, without brown markings.

Male terminalia: Unknown.

Female terminalia: Oviscape ( Fig. 3 ) 3.24 mm long, 1.40 times as long as mesonotum; distal fourth brown; spiracle at basal 0.25. Eversible membrane ( Fig. 70 ) ca. 35 slender, medium length, hooklike dorsobasal scales in 3–4 irregular rows in semicircular pattern. Aculeus ( Fig. 113 ) slightly ventrally curved in lateral view, 2.83 mm long; in ventral view base 0.14 mm wide; shaft 0.09 mm wide at midlength; tip broken in holotype, 0.06 mm wide. Spermathecae not dissected.

Distribution. Anastrepha disticrux is known only from Jamaica.

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 ( USNM USNMENT00104287 ), JAMAICA: St. Thomas , 14–21 Mar 1986, R. C. Murray.

Etymology. The name of this species is a Latin noun in reference to the distal position of crossvein r-m.

Figures

FIGURES 1–4. Habitus female, dorsal: 1, A. bella (composite Panama: Migdalia Fuentes, USNMENT00215485 & holotype); 2, A. binodosa (Brazil: Santarém, USNMENT00671150); 3, A. disticrux (holotype); 4, A. concava (composite); bar = 1.0 mm.

FIGURES 30–41. Wings: 30, A. cryptostrepha (Peru: Meshagua, USNMENT00104288); 31, A. cryptostrephoides (holotype); 32, A. disticrux (holotype); 33, A. fenestrata (Brazil: Rio Trombetas, USNMENT00052104); 34–35, A. fenestrella (Panamá: Arraijan, USNMENT0052103; Altos de Pacora, USNMENT00671180); 36–39, A. furcata (Brazil: Cruz das Almas, USNMENT00052097; Panamá: El Cermeño, USNMENT00052100; holotype, copied from Lima 1934, estampa LXVIII, fig. 28; female, Brazil: Cachoeira Paciencia, copied from Lima 1937, estampa 3, fig. 4); 40, A. fuscata (holotype); 41, A. isolata (Ecuador: Onkone Gare Camp, USNMENT00054603).

FIGURES 63–72. Eversible membranes: 63, A. amazonensis (holotype); 64–65, A. bella (Panamá: Migdalia Fuentes, USNMENT 00671175; Altos de Pacora, USNMENT00216156); 66, A. binodosa (Brazil: Santarem, USNMENT00216097); 67, A. concava (Panamá: El Cermeño, USNMENT00104251); 68, A. cordata (Panamá: El Cermeño, USNMENT00104297); 69, A. cryptostrepha (Surinam: Paramaribo, USNMENT00216571); 70, A. disticrux (holotype); 71, A. fenestrata (Brazil: Rio Trombetas, USNMENT00052104); 72, A. fenestrella (Costa Rica: La Selva, USNMENT00104276).

FIGURES 108–130. Aculei (ventral or lateral): 108, A. amazonensis (holotype); 109, A. bella (Panamá: Migdalia Fuentes, USNMENT00671175); 110, A. binodosa (Brazil: Santarem, USNMENT00216097); 111, A. cordata (Guatemala: Poptún, USNMENT00050350); 112, A. cryptostrepha (Surinam: Paramaribo, USNMENT00216571); 113, A. disticrux (holotype); 114, A. fenestrata (Brazil: Rio Trombetas, USNMENT00052104); 115, A. fenestrella (Costa Rica: La Selva, USNMENT00104276); 116–117, A. furcata (Brazil: Manaus, USNMENT00216209); 118–119, A. fuscata (holotype); 120–121, A. isolata (Ecuador: Onkone Gare Camp, USNMENT00054600); 122–123, A. jamaicensis (holotype); 124, A. lambda (holotype); 125, A. miza (Venezuela: Cuchime, USNMENT00214907); 126–127, A. nigra (Panamá: Altos de Pacora, USNMENT00215490); 128–129, A. nigrifascia (Key Largo, USNMENT00216379).