Bactrocera (Daculus) biguttula (Bezzi 1922) - Two-spotted Wild Olive Fruit Fly

Original description in:
Bezzi, M. 1922. Due nuovi Tripaneidi (Dipt.) infestanti frutti di Olea nell' Africa del Sud. Boll. Lab. Zool. Gen. Agrar. R. Scuola Super. Agric. Portici 15
https://www.biodiversitylibrary.org/page/8636049#page/304/mode/1up

Detailled description:
http://projects.bebif.be/fruitfly/descriptions/164.pdf
Wing length, 4.2-6.2 mm.
Head. Pedicel+1st flagellomere not longer than ptilinal suture. Face, antennal furrow with a dark spot. Frons, frontal setae 2, orbital seta 1.
Thorax. Scutum predominantly red brown, with a black stripe; postpronotal lobe bicoloured; notopleural callus yellow; notopleural xanthine absent; lateral postsutural vittae present (lateral fairly short, barely extending beyond anterior supra-alar seta); medial postsutural vitta absent. Scutellum with a broad redbrown stripe from base to apex (lateral margin yellow). Anepisternum with a stripe from notopleural callus to (or almost to) katepisternum; extended onto katepisternum. Laterotergal xanthine confined to katatergite.
Thoracic setae. Anterior notopleural seta present; anterior supra-alar seta absent; prescutellar acrostichal seta present; basal scutellar seta absent.
Wing. Basal cells bc and c without an almost complete covering of microtrichia; cell bm without microtrichia. Narrow subbasal raised section of cell br with microtrichia confined to anteriorly half. Crossvein R-M beyond middle of cell dm. Costal band complete; shallow, not extending below vein R2+3 before wing apex; barely expanded at apex. Anal streak present but narrow. Cells bc and c hyaline. Without any crossbanding.
Legs. Femora pale; rarely with mid- and hindfemora bicoloured (pale basally,
red-brown apically).
Abdomen. Red-brown, patterned fuscous; shape and patterning, see image. Tergites II-V separate.
Male. Tergite III with pecten, dense microtrichia adjacent end A1+Cu2, and hindtibia preapical "pad". Basal costal sections without specialised setae.
Female. Aculeus pointed; no torsion; length, 1.04mm.

Key in Copeland 2004
http://hbs.bishopmuseum.org/pdf/copeland-etal.pdf

Photo in:
Teixeira da Costa, L., Powell, C., van Noort, S., Costa, C., Sinno, M., Caleca, V., … van Asch, B. (2019). The complete mitochondrial genome of Bactrocera biguttula (Bezzi) (Diptera: Tephritidae) and phylogenetic relationships with other Dacini. International Journal of Biological Macromolecules, 126, 130–140. doi:10.1016/j.ijbiomac.2018.12.186
https://sci-hub.se/https://doi.org/10.1016/j.ijbiomac.2018.12.186

Host plants: wild species of Olea and Noronhia
Olea europaea cuspidata, Olea capensis capensis, Olea woodiana woodiana, Olea woodiana disjuncta, Noronhia foveolata, Noronhia battiscombei

Distribution: Kenya, Mozambique, South Africa

iNat observations:
https://www.inaturalist.org/observations/170476802
https://www.inaturalist.org/observations/140752268
https://www.inaturalist.org/observations/45786327

Julkaistu elokuu 30, 2024 11:28 AP. käyttäjältä traianbertau