Paragus, Latreille, 1804

Tot, Tamara, Radenković, Snežana, Nedeljković, Zorica, Likov, Laura & Vujić, Ante, 2020, Descriptions of two new species of the genus Paragus Latreille (Diptera: Syrphidae) with a key to males of all South African species, Zootaxa 4780 (2), pp. 341-355: 350

publication ID

https://doi.org/10.11646/zootaxa.4780.2.7

publication LSID

lsid:zoobank.org:pub:69AA3571-E914-4650-BCF5-4A92129B607D

DOI

http://doi.org/10.5281/zenodo.3854359

persistent identifier

http://treatment.plazi.org/id/5B7E87FD-FFF4-064C-FF76-E0B2FA72F8B4

treatment provided by

Plazi

scientific name

Paragus
status

 

Key to males of South African species of the genus Paragus 

1 Eyes with 2 or 3 vertical vittae of pile..................................................................... 2

- Eyes with uniformly distributed pile (subgenus Pandasyopthalmus  )............................................. 3

2 Posterior margin of scutellum without teeth; abdomen broad, terga laterally fused (subgenus Afroparagus  ); terminalia as in Figs 9View FIGURE 9 E–G: lingula absent ( Fig. 9FView FIGURE 9).............................................. Paragus borbonicus Macquart, 1842 

- Posterior margin of scutellum with distinct teeth (subgenus Serratoparagus  ); terminalia ( Figs 9View FIGURE 9 A–D): epandrium ( Figs 9View FIGURE 9 A–B) with bulge next to the cercus in lateral view ( Fig. 9BView FIGURE 9 marked with arrow); hypandrium with developed lingula ( Fig. 9CView FIGURE 9)........................................................................ Paragus capricorni Stuckenberg, 1954b 

3 Abdomen petiolate ( Fig. 8AView FIGURE 8)............................................................................ 4

- Abdomen parallel sided, never distinctly petiolate ( Fig. 8BView FIGURE 8).................................................... 7

4 Terminalia: paramere boomerang-shaped ( Figs 10EView FIGURE 10: p, 10G: p)................................................. 5

- Terminalia: paramere broad in the base, tapering towards the apex ( Figs 10AView FIGURE 10: p, 10C: p)............................. 6

5 Terminalia: surstylus rhomboid-shape apically ( Fig. 10GView FIGURE 10: s), paramere with slender apex ( Fig. 10GView FIGURE 10: p); ejaculatory apodeme as in Fig. 10HView FIGURE 10................................................................ Paragus longiventris Loew, 1858 

- Terminalia: surstylus trapezoid-shape apically ( Fig. 10EView FIGURE 10: s), paramere with rounded apex ( Fig. 10EView FIGURE 10: p); ejaculatory apodeme as in Fig. 10FView FIGURE 10.................................................................... Paragus minutus Hull, 1938 

6 Basoflagellomere shorter (two times longer than scape and pedicel together) ( Fig. 11AView FIGURE 11); terminalia: paramere broader, with pointed apex ( Fig. 10AView FIGURE 10: p)...................................................... Paragus marshalli Bezzi, 1915 

- Basoflagellomere more elongated (three times longer than scape and pedicel together) ( Fig. 11BView FIGURE 11); terminalia ( Figs 10View FIGURE 10 C–D): paramere narrower, with rounded apex ( Fig. 10CView FIGURE 10: p).............................. Paragus dolichocerus Bezzi, 1915 

7 Cercus enlarged (5.9 times longer than the narrowest part of epandrium in dorsal view) ( Figs 6View FIGURE 6 A–B)................................................................................................ Paragus megacercus  sp. nov.

- Cercus not enlarged................................................................................... 8

8 Posterior margin of sternum 4 medially protruded with two tufts of black pile medially ( Figs 2View FIGURE 2 C–D: t), boundary between sterna 2 and 3 with medial longitudinal protuberance ( Figs 2View FIGURE 2 C–D: pr); terminalia as in Fig. 3View FIGURE 3......... Paragus longipilus  sp. nov.

- Posterior margin of sternum 4 simple, boundary between sterna 2 and 3 without medial longitudinal protuberance........ 9

9 Terminalia ( Figs 10View FIGURE 10 I–J): surstylus narrow in the base, expanding medially, tapering towards the apex ( Fig. 10IView FIGURE 10: s); abdomen completely black, terga with white erect pile on anterior half and with black adpressed pile on posterior half.......................................................................................... Paragus punctatus Hull, 1949 

- Terminalia ( Figs 10View FIGURE 10 K–L): surstylus same width along its length ( Fig. 10KView FIGURE 10: s); abdomen black with orange markings on terga, terga only with white pile.................................................. Paragus haemorrhous Meigen, 1822 

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Syrphidae