Pityocera (Pseudelaphella) nigribasis Fairchild, 1964

Krolow, Tiago Kütter, Henriques, Augusto Loureiro, Gorayeb, Inocêncio De Sousa, Limeira-De-Oliveira, Francisco & Buestán, Jaime, 2015, Taxonomic revision of the Neotropical genus Pityocera Giglio-Tos, 1896 (Diptera: Tabanidae: Scionini), Zootaxa 3904 (3), pp. 301-333 : 313-314

Pityocera (Pseudelaphella) nigribasis Fairchild, 1964

(figures 6A–C)

Type locality. Unknown.

Pityocera (Pseudelaphella) nigribasis Fairchild, 1964: 170 ; Fairchild, 1971: 28 (catalog); Moucha, 1976: 41 (catalog); Chainey, 1990: 289 (types of BMNH); Fairchild & Burger, 1994: 52 (catalog); Coscarón & Papavero, 2009b: 46 (catalog); Lessard, 2014: 238 (revision Scionini ).

Diagnosis. original transcription from Fairchild (1964: 170): a small dark brown species similar to Ps. patellicornis , but wings bases to ends of basal cells black.

Distribution. unknown.

Holotype ♀: deposited at BMNH, analyzed through photographs (figs. 6A–B).

Discussion. this species was described by Fairchild (1964) from only one specimen which had no locality data, deposited in the BMNH (fig. 6C). Even with this difficulty, Fairchild had no doubts about publishing the description: “The specimen is beautifully preserved and in spite of having no locality, is so distinct and so obviously related to Ps. patellicornis that I have felt it worth while to describe it.” The distinction mentioned by the author refers mainly to the conspicuous wing spot, indicated by the specific epithet nigribasis , which has not been observed in any other Pityocera . Fairchild did not publish any illustration with the original description; they are presented for the first time in this paper (figs. 6A–B).