Anastrepha haplacantha Norrbom & Korytkowski, 2012, new species
Creators: name: Norrbom, Allen L.
name: Korytkowski, Cheslavo A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tephritidae
Anastrepha
Anastrepha haplacantha

description: Anastrepha haplacantha, new species
Figs. 8, 42, 62, 63, 81, 95
Diagnosis. Anastrepha haplacantha differs from most other species of Anastrepha by its pattern of dorsobasal denticles on the eversible membrane, with one medial denticle much larger than the others. In this regard it is similar to other species of the megacantha clade, but differs as indicated in the key.
In the key of Steyskal (1977) it runs to A. quararibeae Lima, but it differs in having the larger medial denticle on the eversible membrane, lacking a subapical hyaline area in cell c (variable in A. quararibeae), and having the V-band separated from the S-band (variable in A. quararibeae).
Description. Mostly yellow to orange. Setae orange to orange brown, sometimes red brown on head. Head: Yellow to orange except brown ocellar tubercle. 3–4 frontal setae; 2 orbital setae, posterior seta well developed. Ocellar seta weak, at most 1.5 times as long as ocellar tubercle. Facial carina, in profile, straight to slightly concave on dorsal two-thirds. Antenna not extended to ventral facial margin. Palpus in lateral view dorsally curved, evenly setulose.
Thorax: Mostly yellow to orange, with following areas white (poorly differentiated in type specimens): postpronotal lobe and lateral margin of scutum bordering it; sublateral scutal vitta from transverse suture to posterior margin, including base of intra-alar seta; entire scutellum; dorsal margins of anepisternum and katepisternum; katepimeron; and most of anatergite and katatergite. Medial scutal vitta not apparent. Subscutellum and mediotergite entirely orange. Mesonotum 3.02–3.08 mm long. Postpronotal lobe and scutellum entirely microtrichose; scutum apparently mostly nonmicrotrichose except along transverse suture and broadly on lateral and posterior margins; scutal setulae orange. Chaetotaxy typical for genus. Katepisternal seta weak, one-third to two-thirds as long as anepisternal seta, but much weaker, orange to orange brown.
Legs: Entirely yellow to orange.
Wing (Fig. 42): Length 7.15–7.25 mm, width 3.14 mm, ratio 2.31. Apex of vein R1 at 0.55 wing length, proximal to level of anterior end of crossvein r–m. Cell c 1.17–1.19 times as long as pterostigma; pterostigma 3.91 times as long as wide. Vein R2+3 slightly to moderately sinuous. Crossvein r–m at 0.66 distance from bm–cu to dm–cu on vein M. Vein M weakly curved apically; cell r4+5 1.16–1.19 times as wide at apex as at level of dm–cu. Cell bcu with distal lobe moderately long, length of bcu 1.55 times as long as anterior margin, lobe 0.75 times as long as vein A1+Cu2. Wing pattern mostly orange and moderate brown. C-band mostly orange, slightly paler in cells bc and c, slightly darker in pterostigma, and with brownish streak and apical brown spot in cell br. C-band and S-band broadly separated by hyaline band that extends from cell bm to costa, slightly narrowed along vein R2+3. Basal hyaline area in cell dm relatively small. Basal half of S-band mostly orange, most of posterodistal margin brown, only slightly more broadly in cell cu1, without incision in cell cu1, proximal margin partially narrowly brown in cells r2+3 and br; distal section mostly orange with brown margins, medium width, at apex of vein R2+3 0.56 times width of cell r2+3, not extended to apex of vein M; hyaline area proximal to apex of band extending to vein R2+3. V-band complete, mostly orange, proximal arm brown in cell cu1 and on margins in cells dm and m, distal arm brown in cell m and on distal margin in cell r4+5; proximal arm separated from S-band, on posterior margin extended about three-fourths distance to vein A1+Cu2; distal arm connected to proximal arm; cell r4+5 with minute, diffuse hyaline area or without hyaline area between V-band and vein M.
Abdomen: Mostly orange, without brown markings. Setulae orange.
Female terminalia: Oviscape 2.30–2.36 mm long, 0.76–0.77 times as long as mesonotum, straight in lateral view, entirely orange; spiracle at basal 0.31–0.33. Eversible membrane (Fig. 62, 63) with 1 very large medial hooklike denticle and about 20 smaller hooklike dorsobasal denticles, no more than half as long as medial denticle, in 2–3 irregular rows in suboval pattern. Aculeus (Fig. 81) straight in lateral view, 2.00 mm long, 0.85 times as long as oviscape, in ventral view base slightly expanded, 0.19 mm wide; shaft parallel-sided, 0.075 mm wide at midlength; tip (Fig. 95) 0.23–0.24 mm long, 0.12 times aculeus length, 0.07–0.08 mm wide, 3.00–3.29 times as long as wide, elongate triangular, gradually tapered, nonserrate, 0.05 mm wide in lateral view, 0.66–0.71 times ventral width. Spermathecae elongate ovoid.
Distribution. Anastrepha haplacantha is known only from eastern Ecuador (Orellana).
Biology. The host plants and other aspects of the biology of this species are unknown.
Type data. Holotype Ƥ (deposited in trust at USNM for eventual deposit in EPNE, USNMENT 00054590), ECUADOR: Orellana: Reserva Etnica Waorani, Onkone Gare Camp, 1 km S, Transect Ent., 0°39'10"S 76°26'W, transect 1, station 10, 220 m, insecticidal fogging, terra firme forest, 9 Feb 1995, T. L. Erwin et al. Project MAXUS Lot 979. Paratype: ECUADOR: Orellana: Reserva Etnica Waorani, Onkone Gare Camp, 1 km S, Transect Ent., 0°39'10"S 76°26'W, transect 10, station 4, 220 m, insecticidal fogging, terra firme forest, 6 Jul 1995, T. L. Erwin et al. Project MAXUS Lot 1124, 1Ƥ (USNM USNMENT 00054795).
Etymology. This name is a noun in apposition, from the Greek “haplos”, meaning single, and “akantha”, meaning thorn, in reference to the one much larger hooklike denticle on the eversible membrane.
Comments. A male from the same area as the type specimens is similar but has vein M more strongly curved apically (Fig. 43) and terminalia longer than would be expected for males of A. haplacantha (phallus 7.2 mm long, 1.87 times mesonotum length). It presumably represents another species. It has the following data: ECUADOR: Orellana: Reserva Etnica Waorani, Onkone Gare Camp, 1 km S, Transect Ent., 0°39'10"S 76°26'W, transect 1, station 4, 220 m, insecticidal fogging, terra firme forest, 9 Jul 1995, T. L. Erwin et al. Project MAXUS Lot 1134, 13 (USNM USNMENT00054780)
description: Published as part of Norrbom, Allen L. & Korytkowski, Cheslavo A., 2012, New species of Anastrepha (Diptera: Tephritidae), with a key for the species of the megacantha clade, pp. 510-552 in Zootaxa 3478 on pages 526-527, DOI: 10.5281/zenodo.282325