Platypalpus Macquart

Shamshev, Igor & Grootaert, Patrick, 2012, Proposed change in status of the Nearctic genus Charadrodromia Melander (Diptera: Hybotidae, Tachydromiinae), with description of four new species, Zootaxa 3525, pp. 35-50 : 36

publication ID

https://doi.org/ 10.5281/zenodo.282718

DOI

https://doi.org/10.5281/zenodo.6168199

persistent identifier

https://treatment.plazi.org/id/03FC87D2-6A6F-FFB1-288A-FCD8FC57F824

treatment provided by

Plazi

scientific name

Platypalpus Macquart
status

 

Genus Platypalpus Macquart View in CoL

Coryneta Meigen, 1800: 27 . Type species: Musca cursitans Fabricius, 1775 (by subsequent designation of Engel 1939: 43). Suppressed by I.C.Z.N. 1963: 339 (Opinion 678).

Platypalpus Macquart, 1827: 92 View in CoL . Type species: Musca cursitans Fabricius, 1775 (by subsequent designation of Westwood 1840: 132).

Phoroxypha Rondani, 1856: 146 . Type species: Tachydromia longicornis Meigen, 1822 View in CoL (by original designation).

Cleptodromia Corti, 1907: 101 (as subgenus of Tachydromia View in CoL ). Type species: Tachydromia (Cleptodromia) longimana Corti, 1907 View in CoL (by monotypy).

Brevios Brunetti, 1913: 22 . Type species: B. longicornis Brunetti, 1913 View in CoL (by original designation).

Howlettia Brunetti, 1913: 23 . Type species: H. flavipes Brunetti, 1913 (by monotypy).

Charadrodromia Melander, 1928: 292 View in CoL . Type species: C. microphona Melander, 1928 View in CoL (by original designation), syn. nov.

Tachydromia View in CoL , authors, not Meigen, 1803, misidentifications.

Notes on synonymy. When examining type materials of the species assigned to Charadrodromia View in CoL we found that actually they belong to the genus Platypalpus Macquart. Melander (1928) View in CoL did not provide any comparative analysis of Charadrodromia View in CoL but his key to the genera and subgenera of the Tachydromiinae View in CoL (l.c.: 270) indicates diagnostic features that Melander thought to be crucial to erect a separate genus: first basal cell equal to or longer than the second, anal cell not formed; face narrower than frons; two pairs each of ocellar and vertical bristles; arista apical; humeri constricted; legs not evidently bristly; cheeks linear; notum with coarse hairs but no strong anterior dorsocentrals.

It is evident that none of the characters applied by Melander could be used to distinguish Charadrodromia View in CoL from Platypalpus View in CoL . Relative lengths of cells br and bm of the wing (= first and second basal cells) are quite variable in Platypalpus View in CoL including North American species (e.g., Chillcott 1962: 117, figs. 8–10; Chvála 1975: figs 674–747). In Platypalpus View in CoL the anal cell (or cell cu p) is usually closed (anal vein distinct basally) but rarely (e.g., some species of the P. hackmani View in CoL group) it is not quite formed (anal vein wanting or evanescent basally). Furthermore, the anal vein is distinct in C. arnaudi View in CoL (cf. Fig. 2 View FIGURES 1 – 5 ) and evanescent in other species of Charadrodromia View in CoL ( Figs. 6 View FIGURE 6 , 7 View FIGURES 7 – 11 ). Finally, the length of ocellar bristles varies in Platypalpus View in CoL and even in Charadrodromia View in CoL . Consequently, Charadrodromia View in CoL is viewed here as a junior synonym of Platypalpus View in CoL .

The genus Chersodromia View in CoL from which Charadrodromia View in CoL was distinguished in Melander’s key belongs to the tribe Drapetini View in CoL that is diagnosed by several distinctive apomorphies ( Sinclair & Cumming 2006: 79). Unfortunately Melander's (1928) misleading key (p. 270, couplets 6 and 7) to the genera and subgenera of the Tachydromiinae View in CoL was applied in the Manual of Nearctic Diptera ( Steyskal & Knutson 1981) .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Hybotidae

Loc

Platypalpus Macquart

Shamshev, Igor & Grootaert, Patrick 2012
2012
Loc

Charadrodromia

Melander 1928: 292
1928
Loc

Brevios

Brunetti 1913: 22
1913
Loc

Howlettia

Brunetti 1913: 23
1913
Loc

Phoroxypha

Rondani 1856: 146
1856
Loc

Platypalpus

Westwood 1840: 132
Macquart 1827: 92
1827
Loc

Coryneta

Engel 1939: 43
Meigen 1800: 27
1800
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