Platycheirus (Carposcalis) lundbladi ( Enderlein, 1940 )

Barahona-Segovia, Rodrigo M., Riera, Pamela, Pañinao-Monsálvez, Laura, Guzmán, Vicente Valdés & Henríquez-Piskulich, Patricia, 2021, Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes, Zootaxa 4959 (1), pp. 1-178 : 110

Platycheirus (Carposcalis) lundbladi ( Enderlein, 1940)

Carposcalis lundbladi Enderlein, 1940: 665

Melanostoma lundbladi Fluke, 1945: 24 *

Melanostoma (Carposcalis) lundbladi Fluke, 1955: 41 *

Type locality and data. “Juan Fernandez Is.: Masatierra. Chile ” (HT, ♀, NHRS) .

Literature distribution. Valparaíso:Alto inglés, Masatierra, II.1952, Leg. Fluke ( Fluke, 1955); Miradero Selkirk, 15.II.1951, Leg. Fluke ( Fluke, 1955); Plazoleta El Yunque, 12.II.1951 ( Fluke, 1955).

References. Enderlein, 1940: 665 (desc.); Fluke, 1952: 24 (desc.); Fluke, 1955: 41 (desc.); Fluke, 1958: 273, figs 61–62 (genitalia); Etcheverry, 1963: 54 (cat.); Thompson et al., 1976: 41 (cat.); Smith-Ramírez et al., 2014: 6 (ecological study, supplementary material; error in the identification).

World distribution. Chile.

Chilean distribution. Restricted only to Robinson Crusoe, Juan Fernández Islands, Valparaíso region ( Fig. 164 ).

Altitudinal range. The species inhabits native forests in ravines and clifftops (200– 600 m.a.s.l.).

Biology. Platycheirus lundbladi inhabits only the Robinson Crusoe Island in the Juan Fernández Archipelago. There is no biological information about this species apart from some reports of floral visits by Bernardello et al. (2001). Smith-Ramírez et al. (2005) mentioned this species in their pollinator study in Chiloé. However, it was incorrectly identified (R. Barahona-Segovia corrected the identification as belonging to P. chalconota ).

Conservation status. CR under B1ab (iii) + 2ab (iii) using EOO = 4 km 2, AOO = 4 km 2 and 1 locality (or subpopulation).

Figures

FIGURE 164. Distribution map of Platycheirus species in Chile: Platycheirus (Carposcalis) chalconotus (Philippi, 1865) (blue circles); Platycheirus (Carposcalis) fenestratus (Macquart, 1842) (red circles); Platycheirus (Carposcalis) punctulatum (Wulp, 1888) (black circles); Platycheirus (Carposcalis) lundbladi (Enderlain, 1940) (green circles) and Paragus angustistylus Vockeroth, 1968 (yellow triangle).