Stenopygium punctipennis ( Say, 1829 )

Soares, Matheus M. M. & Ale-Rocha, Rosaly, 2020, New records of Stenopygium Becker (Diptera: Dolichopodidae) from the Neotropical Region, and a key to species, Zootaxa 4868 (1), pp. 129-134 : 131

Stenopygium punctipennis ( Say, 1829)

( Figs 9–14 , 17 )

Medeterus punctipennis Say, 1829: 170 .

Pelastoneurus variegatus Aldrich, 1901: 339 ; Robinson 1970: 40.51 (synonymy, catalog).

Stenopygium punctipennis: Brooks 2005: 109 ; Yang et al. 2006: 202 (catalog).

Examined material. Mexico, Veracruz: Fortin de las Flores [18°51′03.1″N 97°07′11.0″W], 2.v. 1985, 952 m, W.N. Mathis, Stenopygium punctipennis (Say) , Det: S.E. Brooks, 2006 (1♂, NMNH) ; Chiapas, 20–25 mi. NE Huixtla [15°10′10.2″N 92°27′04.9″W], 3000′, 3.vi.1969, H.J. Teskey (4♀, CNC) ; idem, 2.vi.1969, B. V. Peterson (2♀, CNC) . Guatemala, El Salto Antigua [14°33′17.1″N 90°43′33.2″W], J.M. Aldrich, Coll V–I Stenopygium punctipennis (Say) , Det: S.E. Brooks, 2006 (1♂, NMNH) ; San Cristobal AV Paz [14°11′26.3″N 89°40′33.4″W], J.M. Aldrich, Coll V–17–26 (1♀, NMNH) . Costa Rica, Alajuela [10°26′16.8″N 84°32′22.0″W], 700 m, Penas Blancas, 18.viii.1996, s.s., L. Masner, rainforest (5♂, 9♀, CNC) ; Heredia, INBio Parque [9°58′23.9″N 84°05′33.1″W], 1125 m, 13.viii.2010, J.B. Runyon (1♂, CNC) ; Puntarenas, Monteverde , [10°19ʹ08ʺN 84°48ʹ31ʺW], 1600 m, 18–24.viii.1987, G. & M. Wood (1♀, CNC) ; idem, 26.ii.1991, stream above cheese factory, B.J. Sinclair (4♀, CNC) ; idem, Biological Station , S. Principal & environs, 15.viii.2010, S.E. Brooks (3♂, 2♀, CNC) ; idem, 16.viii.2010 (2♂, CNC) ; idem, J.M. Cumming (1♀, CNC) ; San José, San Gerardo de Dota, [9°34′12.5″N 83°48′21.9″W], Rio Savegre , 2200 m, riverbed, yellow pan trap (8 BYPT C-03 ) , 19.iii.1996, L. Masner (1♂, 1♀, CNC) ; idem, 2220–2600 m, pan trap, 7–10.viii.1995, J.M. Cumming (1♀, CNC) ; Zurqui de Moravia & Hwy 32, E of San José [10°01′45.7″N 84°00′39.5″W], v.1996, 1600 m, Malaise, P. Hanson (1♀, CNC) . Panama, Chiriqui, 15 km NW Hato del Volcan [8°46′13.0″N 82°37′53.1″W], 1200 m, 24–31.v.1977, Peck & Howden (1♀, CNC) . Venezuela, [Lara], Yacambo [National Park], [9°42ʹ25ʺN 69°34ʹ38ʺW], 1200 m, 10.v.1981, H.K. Townes (1♂, 2♀, CNC) ; idem, Headquarters , 9°42ʹ25ʺN 69°34ʹ38ʺW, 1549 m, 5–8.ix.2008, Malaise, J. Skevington (1♀, CNC) .

Distribution. Bolivia, Costa Rica, Mexico ( Yang et al. 2006), Guatemala *, Panama * and Venezuela * ( Fig. 17 ).

Remarks. Stenopygium punctipennis was first described from Mexico, and later recorded from Bolivia and Costa Rica by Robinson (1970). The species is here newly recorded from Guatemala, Panama and Venezuela at elevations ranging from 256 m (San Cristobal) to 2600 m (San Gerardo de Dota), also suggesting a close association with higher altitudes for species in the genus (see above). The record of this species for Bolivia seems doubtful since all known records, including the specimens studied here, are from Mexico to Venezuela, between latitudes 18° N and 8° N. We analyzed a species of Pelastoneurus from Brazil that has the spot pattern in the wing similar to that of S. punctipennis . However, until the specimens studied by Robinson (1970) are analyzed, we have chosen to question the Bolivian record of this species.

Figures

FIGURE 17. Species distribution of Stenopygium Becker.

FIGURES 9–14. Stenopygium punctipennis (Say, 1829). 9. Head, anterior view (♂); 10–11. Head, lateral view: 10. Male; 11. Female; 12. Wing (♂); 13. Mesonotum, dorsal view (♂); 14. Hypopygium, lateral view.