Paracanace oliveirai
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Mathis2012ZooKeys162, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Mathis2012ZooKeys162">{{Citation See also the citation download page at the journal. |
Ordo: Diptera
Familia: Canacidae
Genus: Paracanace
Name
Paracanace oliveirai (Wirth) – Wikispecies link – Pensoft Profile
- Paracanace oliveirai. Mathis and Wirth 1978[1]: 524 [generic combination, key], 527 [key]. Mathis 1992[2]: 10 [world catalog]. Munari and Mathis 2010[3]: 24 [world catalog].
Diagnosis
This species is similar to other species of the maritima group but can be distinguished from other congeners by the following combination of characters: As in generic descriptions and key to species with the following details: Generally appearing setulose, although less so than Paracanace maritima; body length 1.54–2.05 mm. Head: Frons moderately densely golden brown to brownish tan microtomentose; face microtomentose, mostly silvery white, with some faint grayish blue near middle; gena similar in coloration and vestiture to face but more silvery white, with some gray adjacent to anteroventral margin of eye; middle dorsoclinate genal seta subequal in length to setae on either side. Thorax: Mesonotum tan to brown, becoming more grayish brown toward lateral margins and posteriorly; acrostichal setulae in 2 rows, posterior pair longer; scutellum gray; pleural area pale gray with some faint bluish coloration. Wing evenly faintly infumate, pale grayish brown; spinelike setulae along costal margin short, length less than half width of 1st costal cell; costal vein ratio 0.13–0.20; M vein ratio 0.37–0.40. Femora and tibiae gray with some darker coloration dorsally; basal 3 tarsomeres yellow, apical 2 yellowish brown to brown; long setae along posteroventral margin of forefemur with apical 1–2 black, others pale. Abdomen: Generally gray, dorsum darker, somewhat shiny, with faint metallic reflections, lateral margins dull. Male terminalia (Fig. 8): surstylus pale colored, especially apical half, yellowish orange to pale yellow; surstylus subrectangular in lateral view, oriented posteroventrally, ventral margin broadly and shallowly rounded, not pointed, with posteroventral and anteroventral angles relatively similar, posterior margin in posterior view with shallow swelling subapically, posteroventral portion projected medially, setulae along anterior and posterior margins small and indistinct.
Specimens examined from Brazil
PARANÁ. Antonina (25°28.4'S, 48°40.9'W; beach/mangal), 3 Feb-9 Apr 2010, D. and W. N. Mathis (21♂, 4♀; DZUP, USNM); Antonina (25°27.1'S, 48°41.1'W; beach; Ponta da Pita), 3–15 Feb 2010, D. and W. N. Mathis (1♂, 1♀; DZUP, USNM); Prainha (5 km S Matinhos; 25°51.2'S, 48°33.6'W; beach), 15 Nov 2010, D. and W. N. Mathis (1♂; USNM).
RIO DE JANEIRO. Ilha da Marambaia (23°3.6'S, 43°59.1'W), 4 Sep 2000, D. and W. N. Mathis (14♂, 6♀; USNM).
Distribution
Neotropical: Brazil (Paraná, Rio de Janeiro).
Remarks
This species is similar and evidently closely related to Paracanace aicen Mathis and Wirth from the West Indies, and these two species have been confused. Wirth’s original description and illustration of Paracanace oliveirai, for example, included specimens of both species in the type series, and Wirth’s illustration, which is based on a specimen from the Dominican Republic, is actually Paracanace aicen (Fig. 7), not Paracanace oliveirai (Fig. 8). Because these two species have been confused, we present here comparable lateral views of the respective epandrium, surstylus, and cercus for both species to facilitate their identification. The illustration of Paracanace oliveirai is the first for that species. Please note that the lateral view of the fused surstylus of Paracanace oliveirai (Fig. 8) is more rectangular than the more elliptical shape of the comparable structure of Paracanace aicen (Fig. 7)
Taxon Treatment
- Mathis, W; Marinoni, L; 2012: A conspectus on the Canacidae (Diptera) of Brazil ZooKeys, 162: 59-92. doi
Other References
- ↑ Mathis W, Wirth W (1978) A new genus near Canaceoides Cresson, three new species and notes on their classification (Diptera: Canacidae). Proceedings of the Entomological Society of Washington 80 (4): 524-537.
- ↑ Mathis W (1992) World catalog of the beach-fly family Canacidae (Diptera). Smithsonian Contributions to Zoology 536: iv+18.
- ↑ Munari L, Mathis W (2010) World catalog of the family Canacidae (including Tethinidae) (Diptera), with keys to the supraspecific taxa. Zootaxa 2471: 1-84.
Images
|
