Anastrepha hadracantha 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 hadracantha

description: Anastrepha hadracantha, new species
Figs. 7, 40, 41, 60, 61, 80, 94, 110, 111
Diagnosis. Anastrepha hadracantha 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 with difficulty to either A. lanceola Stone, which has a longer aculeus, or A. xanthochaeta Hendel or A. similis Greene, which have shorter aculei. The aculeus tip is not expanded basally as in A. lanceola, and the setae are orange, not dark brown to black as in A. similis.
Description. Mostly yellow to orange. Setae orange to orange brown, sometimes red brown on head. Head: Yellow to orange except brown ocellar tubercle. 2–4 (usually 3) 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; arista filiform in both sexes. 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 3.86–4.11 mm long. Postpronotal lobe, scutum and scutellum entirely microtrichose; scutal setulae orange. Chaetotaxy typical for genus. Katepisternal seta weak, at most half as long as anepisternal seta, but much weaker, yellow to pale orange.
Legs: Entirely yellow to orange.
Wing (Figs. 40, 41): Length 9.30–9.77 mm, width 3.75–3.91 mm, ratio 2.45–2.61. Apex of vein R1 at 0.62–0.65 wing length, aligned with or distal to level of anterior end of crossvein r–m. Cell c 0.83–0.98 times as long as pterostigma; pterostigma 5.65–7.06 times as long as wide. Vein R2+3 moderately to strongly sinuous. Crossvein r–m at 0.67–0.70 distance from bm–cu to dm–cu on vein M. Vein M very strongly curved apically; cell r4+5 0.64–0.75 times as wide at apex as at level of dm–cu. Cell bcu with distal lobe moderately long, length of bcu 1.56–1.59 times as long as anterior margin, lobe 0.69–0.81 times as long as vein A1+Cu2. Wing pattern mostly orange and moderate brown. C-band mostly orange, sometimes slightly paler in cells bc and c, darker orange brown in pterostigma and with brownish streak and apical brown spot in cell br. C-band and S-band broadly separated along veins R2+3 and R4+5 by hyaline band that extends from cell bm to costa, slightly to strongly narrowed anteriorly in cell r1. Basal hyaline area in cell dm relatively small. Basal half of S-band mostly orange, posterodistal margin brown, very broadly in cell cu1, without or with weak incision in cell cu1, proximal margin narrowly brown in radial cells; distal section orange brown and moderate brown, medium width, at apex of vein R2+3 0.50–0.55 times width of cell r2+3, extended to apex of vein M; hyaline area proximal to apex of band extending to vein R2+3. V-band complete, mostly brown except proximal arm broadly orange bordering dm-cu and in most of section in cell r4+5 and sometimes proximal side of distal arm in cell r4+5; proximal arm separated from S-band, on posterior margin extended at least three-fourths distance to vein A1+Cu2; distal arm connected to proximal arm; apex of V-band extended anteriorly at least slightly and usually distinctly into cell r2+3; cell r4+5 with moderately large, distinct hyaline area between V-band and vein M.
Abdomen: Mostly orange, without brown markings. Setulae orange.
Male terminalia (Fig. 110, 111): Lateral surstylus relatively short, extended beyond prensisetae by 1.2–1.5 times length of prensiseta; in lateral view slightly posteriorly curved, rapidly tapering to acute apex; in posterior view more or less triangular, lateral margin slightly concave to slightly convex, medial margin straight to slightly convex. Proctiger with ventral and lateral sclerotized areas connected but lateral areas separate dorsally. Phallus 6.3–6.8 mm long, 1.61–1.66 times as long as mesonotum; glans 0.62–0.67 mm long.
Female terminalia: Oviscape 4.21–4.52 mm long, 1.09–1.14 times as long as mesonotum, straight in lateral view, entirely orange; spiracle at basal 0.26–0.29. Eversible membrane (Fig. 60, 61) with 1 very large stout medial hooklike denticle and 2 V-shaped rows, each of 8–10 smaller hooklike dorsobasal denticles less than one-third as long as medial denticle, bases of medial denticle and distal row fused. Aculeus (Fig. 80) slightly ventrally curved in lateral view, 3.80 mm long, 0.84 times as long as oviscape, in ventral view base moderately expanded, 0.25 mm wide; shaft nearly parallel-sided, 0.075 mm wide at midlength; tip (Fig. 94) 0.13–0.145 mm long, 0.04 times aculeus length, 0.085 mm wide, 1.53–1.71 times as long as wide, slightly tapered then bluntly triangular, distal 0.17–0.23 minutely serrate, 0.045–0.055 mm wide in lateral view, 0.53–0.65 times ventral width. Spermathecae elongate ovoid to subcylindrical.
Distribution. Anastrepha hadracantha 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 00054819), ECUADOR: Orellana: Reserva Etnica Waorani, Onkone Gare Camp, 1 km S, Transect Ent., 0°39'10"S 76°26'W, transect 6, station 4, 220 m, insecticidal fogging, terra firme forest, 12 Feb 1995, T. L. Erwin et al. Project MAXUS Lot 1033. Paratypes: ECUADOR: Orellana: Reserva Etnica Waorani, Onkone Gare Camp, 1 km S, Transect Ent., 0°39'10"S 76°26'W, transect 3, station 7, 220 m, insecticidal fogging, terra firme forest, 5 Feb 1996, T. L. Erwin et al. Project MAXUS Lot 1427, 1Ƥ (USNM USNMENT 00054812); same, transect 6, station 7, 7 Feb 1996, Lot 1457, 1Ƥ (USNM USNMENT 00054810); same, transect 9, station 8, 23 Jun 1996, Lot 1608, 1Ƥ (USNM USNMENT 00054827); same, transect 10, station 2, 4 Oct 1996, Lot 1752, 13 (USNM USNMENT 00054611); same, transect 9, 82 m mark, 21 Jun 1994, 13 (EPNE USNMENT 00053527); Reserva Etnica Waorani, Tiputini Biodiversity Station, 0°37'55"S 76°8'39"W, transect # 7, 220 m, insecticidal fogging, terra firme forest, 6 Feb 1999, T. L. Erwin et al. Project MAXUS Lot 2067, 13 (USNM USNMENT 00054364); same, transect #9, 5 Feb 1999, Lot 2082, 1m (USNM USNMENT 00054371).
Etymology. This name is a noun in apposition, from the Greek “hadros”, meaning stout or strong, and “akantha”, meaning thorn, in reference to the much larger hooklike denticle on the eversible membrane.
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 524-526, DOI: 10.5281/zenodo.282325