Pest Fruit Flies of the World

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L.E. Carroll, I.M. White, A. Freidberg, A.L. Norrbom, M.J. Dallwitz, and F.C. Thompson

Zonosemata electa (Say)

Trypeta electa Say, Tephritis flavonotata Macquart

Pepper maggot.

Body. Body plump; predominantly orangish to brown.

Head. Number of frontal bristles four or more pairs (4–5 bristles). Number of orbital bristles two pairs. Anterior orbital bristle of male normal, unmodified. Posterior orbital bristles reclinate; acuminate. Ocellar bristles long, about as long as frontal bristles. Postocellar bristles present. With both inner and outer vertical bristles. Outer vertical, postvertical and postocellar bristles all acuminate. Postocular bristles acuminate; normal. Genal bristle present. Head higher than long. Male and female head width the same. Frontofacial angle about equal to a right angle and angular. Face flat; with distinct antennal grooves and carina; about as long as frons; vertical; without dark marks. Parafacial spot absent. Frons and parafacial without small silvery markings. Fronto-orbital plate setulose. Frontal stripe setulose. Eye round, about as high or slightly higher than long. Antenna considerably shorter than face. Scape, pedicel, and first flagellomere all relatively short. First flagellomere shorter than face; pointed dorsoapically. Arista as long as first flagellomere; bare or with hairs distinctly shorter than greatest aristal width; hairs both dorsal and ventral. Proboscis short, capitate.

Thorax. Inner scapular bristle present and distinguishable from surrounding vestiture; pale. Outer scapular bristle present and distinguishable from surrounding vestiture; dark. Postpronotal bristle present. Presutural dorsocentral bristle absent. Presutural supra-alar bristle present. Postsutural supra-alar bristle present. Acrostichal bristle present. Postsutural dorsocentral bristle present; bristles about midway between postsutural supra-alar and post-alar bristles, or approximately aligned with or posterior to post-alar bristles. Intra-alar bristle present, well developed, similar to postalar bristle. Intrapostalar bristles absent. Number of scutellar bristles two pairs. Apical scutellar bristles as long as basals or longer. Anterior notopleural bristle present. Posterior notopleural bristle(s) acuminate. Number of outstanding anepisternal bristles two. Katepisternal bristles present. Anepisternal bristles dark, brown to black. Long, erect setulae on laterotergite absent. Scutal setulae acuminate and pale. Scutellum sparsely setulose. Setulae on scutellum short, decumbent; unicolorous, acuminate. Transverse suture with the lateral branches wide apart. Complete sclerotized postcoxal metathoracic bridge absent or semimembranous. Scutum orange-brown; without a large dark central stripe which broadens basally. Postpronotal lobe entirely pale whitish or yellowish. Posterior half of notopleuron same as ground color. Scutum dorsad of notopleuron with a pale whitish or yellowish stripe which extends from postpronotal lobe to posterior half of notopleuron, or with a pale stripe which extends from the postpronotal lobe dorsad of the anterior notopleuron, not reaching the posterior half of the notopleuron. Dark lyre-like pattern on scutum absent. Discrete shiny black spots on scutum absent. Median longitudinal black stripe on scutum absent. Number of pale whitish to yellow postsutural stripes three. Pale medial postsutural stripe of scutum tear-drop shaped, or wedge-shaped. Lateral postsutural stripes of scutum extending to intra-alar bristles or beyond. Area bordering scutoscutellar suture medially without dark brown spot, light colored. Discrete pale horizontal stripe along upper anepisternum present and distinct, extending from postpronotal lobe to wing base. Distinct pale vertical anepisternal stripe absent. Katepisternite with pale yellowish or whitish spot present and distinct. Transverse suture covered by extension of postsutural lateral stripe. Katatergite with pale yellowish or whitish spot present and distinct. Anatergite with pale yellowish or whitish spot present and distinct. Subscutellum uniformly yellowish to pale orange-brown, or uniformly brown, or yellowish to orange-brown medially, with distinct dark spots laterally. Mediotergite uniformly yellowish to orange-brown, or uniformly brown. Scutum microtrichia in discrete pattern due to bare areas or completely absent; microtrichia absent or at most present on or lateral to postsutural lateral white stripe, along posterior margin, and/or along transverse suture. Dorsum of scutellum flat or slightly convex, not swollen. Scutellum normal; with a dark and pale pattern, or without a dark and pale pattern (at most a narrow dark basal line); with no isolated dark spots; with lateral black marks extending apically, leaving apical area pale.

Legs. Femora slender. Fore femur with regular bristles; without ventral spines; with 1 to 3 posterodorsal and 1 posteroventral rows of bristles only. Mid femur and hind femur without spine-like bristles. Middle leg of male without feathering. Femora all entirely of one color; dark mark on fore femur 0% of length of femur; dark mark on middle femur 0% of length of femur; dark mark on hind femur 0% of length of femur.

Wings. Wing partly bare. Cell bc microtrichia present in apical area only. Cell c microtrichia present in apical and basal areas. Cell dm bare on basal one-third to one-half. Dense microtrichia at end of vein A1+CuA2 in male absent. Dominant wing pattern cross-banded. Crossbanded wing patterns Anastrepha-like. Wing pattern mostly brownish. Dark longitudinal streaks through basal cells absent. Crossvein r-m covered by a major crossband. Crossvein dm-cu covered by a major crossband which reaches posterior margin of wing. Crossveins r-m and dm-cu not both covered by a single crossband. Cell r2+3 apical to r-m with large hyaline area. Anal band absent, or not reaching nearly to wing margin. Cell r1 and r2+3 without darker spots within the pattern. Intercalary band present, distinct from apical band. Subbasal crossband present. Subbasal and discal crossbands not joined. Marginal hyaline area in cell r1 present and distinct. Ratio of width of apical band in cell r4+5 to length of r-m 1. Anterior apical crossband contiguous with costa over entire length, without marginal hyaline band or spots apically in cells r1 and r2+3. Anterior apical band or costal band extended to vein M. Posterior apical crossband absent. Costal and discal bands joined on vein R4+5. Discal band transverse, or oblique in anterobasal-posteroapical direction, or absent. Discal and apical crossbands not directly joined. Discal and subapical crossbands not joined. Discal and subapical bands not connected along vein R4+5. Subapical and anterior apical crossbands joined. Outstanding costal spine(s) at subcostal break present. Ratio of length of costal section 3 to costal section 4 0.33. Ratio of pterostigmal length to width 2. Vein R1 dorsal setation without bare section opposite end of vein Sc. Vein Rs dorsal setation non-setulose. Vein R2+3 generally straight. Anteriorly-directed accessory vein emerging from R2+3 absent. Vein R4+5 dorsal setation sparse over both sections; ventral setation absent or only present on node or close thereafter. Distance between crossvein r-m and costa longer than r-m. R-m crossvein on cell dm at or near proximal third of cell dm. Cell bm narrow, triangular; ratio of length to width 3; ratio of width to cell cup width 1. Vein M distally straight. Cell dm widens apically gradually from base. Posterodistal corner of cell dm distinctly acute. Cell cup extension or lobe present, vein CuA2 abruptly bent; shorter than vein A1+CuA2; triangular, or with parallel margins.

Abdomen. Abdomen ovate or parallel sided. Abdominal tergites separate. Abdomen in lateral view flatter, more flexible. Abdominal tergite 1 broader at apex than at base; without a prominent hump laterally. Pecten of dark bristles on tergite 3 of male absent. Tergal glands on tergite 5 absent. Abdominal tergite 5 normal. 6th tergite of female exposed; as long as 5th. Abdominal setulae mixed dark and pale acuminate (pale setulae on T1; dark on T2–5). Abdominal microtomentum in bands, or absent. Abdominal sternite 5 of male broad, at least 2x wider than long. Posterior margin of sternite 5 of male with shallow posterior concavity. Abdominal tergites 3–5 predominantly yellow to orange brown. Abdominal tergites without medial dark stripe; not brown with medial T-shaped yellow mark; without isolated dark areas on lateral margins of T3-T5 (spots on T5 (male) or T6 (female)); without dark brown transverse bands.

Male terminalia. Epandrium in posterior view with long outer surstyli, which are more than half as long as epandrium; lateral view with outer surstyli a continuation of the epandrium.

Female terminalia. Syntergosternite 7 straight; shorter than preabdomen; base without a laterally projecting flap; flattened. Ratio of syntergosternite 7 to abdominal tergite 5 1. Dorsobasal scales of eversible membrane about as large as other scales. Aculeus tip triangular; fused to main part of aculeus, not movable; 0% serrated; not serrate.

Miscellaneous. Male attractant: none known.

Nearctic. Canada & USA (Iowa, s. Ontario & Massachusetts, S to Texas & Florida).

Trypetinae. Carpomyini.

Illustrations. • Female habitus, male habitus (dorsal), wing. • Wing. • Habitus male (lateral), wing. • Head (lateral).


Cite this publication as: ‘L.E. Carroll, I.M. White, A. Freidberg, A.L. Norrbom, M.J. Dallwitz, and F.C. Thompson. 2002 onwards. Pest fruit flies of the world. Version: 8th December 2006. http://delta-intkey.com’.

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