Morphological – adult
The four transverse wing bands are present and connected. The thorax of R. completa is orange/pale brown and the abdomen is partly dark brown. The scutellum is concolorous yellow (Foote et al. 1993).
Morphological – larvae
Information not available.
BOLD reference data available, but not well resolved amongst a number of other species in BOLD.
Low divergence clades may be apparent and used in conjunction with other information about the specimen may be sufficient to make a confident identification
PCR-RFLP Test 1
BsrI: Data not available
HinfI: Data not available
HhaI: Data not available
Sau3AI: Data not available
SnaBI: Data not available
SspI: Data not available
Vspl: Data not available
PCR-RFLP Test 2
AluI is fully diagnostic; DraI, HinfI, RsaI and SspI also have diagnostic value.
AluI: 640, 450, 130, 120, 110
Rhagoletis completa - Entire Body Dorsal Classic RCM002
Rhagoletis completa - Entire Body Dorsal Classic
Rhagoletis completa - Entire Body Lateral Classic RCM002
Rhagoletis completa - Head Classic RCM001
Rhagoletis completa - Left Wing Classic RCM001
Rhagoletis completa has been recorded on hosts from two families, Juglandaceae (Juglans spp. are predominant hosts) and Rosaceae (sub-optimal hosts, e.g., peaches) (for a full list of recorded hosts see CABI 2007).
Major commercial hosts:
- Juglans californica (California walnut)
- Juglans hindsii (Californian black walnut)
- Juglans nigra (black walnut)
- Juglans regia (walnut)
Southern and Central USA including northern Mexico; adventive in Western USA since the 1920s. Also established in Southern Europe since the early 1990s (CABI 2007). It is widely distributed over Central and Western mainland USA (pers. comm. Drew 2010), but this species is absent from several states; the map as presented does not represent true geographic distributions within the USA.
Rhagoletis completa is an unusual economic tephritid species in that it is a major pest of walnuts, in contrast to the soft fleshy fruit hosts of other fruit fly species. It is best diagnosed by the distinctive wing colour patterns and a red-brown thorax. Rhagoletis completa is similar to R. berberis; however, the thorax and abdomen of R. completa are golden yellow (completely black in R. berbeis) and the scutellum is concolorous yellow (black with a distinct yellow spot in R. berberis). This species may also be confused with R. suavis.
No known record, but can be captured in traps emitting ammonia.