Dolichocolon basilewskyi, Cerretti & Shima, 2011

Cerretti, Pierfilippo & Shima, Hiroshi, 2011, World revision of Dolichocolon Brauer & Bergenstamm (Diptera: Tachinidae: Exoristinae: Goniini), Zoological Journal of the Linnean Society 162 (3), pp. 544-584 : 557-558

publication ID	https://doi.org/ 10.1111/j.1096-3642.2010.00689.x
DOI	https://doi.org/10.5281/zenodo.5492011
persistent identifier	https://treatment.plazi.org/id/03A887E7-CC06-FFF2-FF06-825B98F6FA7D
treatment provided by	Valdenar
scientific name	Dolichocolon basilewskyi
status	sp. nov.

Treatment

DOLICHOCOLON BASILEWSKYI SP. NOV. ( FIG. 8A–D View Figure 8 )

Type material: Holotype ♂: coll. mus. congo/ Uganda: Bugiri [1°04′N 33°43′E], 1400 m./savane boisée/5/ 8.VIII-1957 // Mission Zoolg. I. R.S.A.C./en Afrique orientale (P. Basilewsky et/ N. Leleup) [ RMCA]. GoogleMaps

Etymology: Named after the Belgian entomologist Pietre Basilewsky.

Description: Body length: 9.7 mm.

Coloration and pruinescence: Head mostly black, with anterior rim of parafacial reddish, covered with whitish-grey pruinescence. Antenna entirely black. Palpus basally brown, shading into yellowish distally. Thorax (except scutellum and postalar callus) black; posterior 2/3 of the scutellum reddish-yellow; postalar callus yellowish-brown; scutum with four presutural dark vittae, lateral vitta indistinctly outlined and reaching further forward than strong lateral posthumeral seta. Legs black. Abdomen black; tergites 3–5 with a regular transverse band of whitish-grey pruinescence on anterior 1/2.

Head: Compound eye bare. Arista thickened on basal 2/5. Second aristomere about four times as long as wide. Thickened part of third aristomere about two times as long as second aristomere. Postpedicel about eight times as long as pedicel. Vertex at its narrowest point 1.13 times as wide as compound eye in dorsal view. Lateral vertical seta well differentiated from postocular setae. Six to seven frontal setae descending below level of base of arista. Fronto-orbital plate with one row of medioclinate setae lateral to row of frontal setae. Gena in profile about 0.2 times as high as compound eye. Postocular setae fine, relatively long, slightly bent anteriorly. Prementum about 1.5 times as long as wide.

Abdomen: Syntergite 1 + 2 with one pair of median marginal setae. Tergite 3 with one pair of median marginal setae longer than corresponding tergite. Tergite 4 with a row of nine marginal setae. Tergite 5 with a row of marginal setae and several, very short, discal setae.

Male terminalia ( Fig. 8A–D View Figure 8 ): Epandrium relatively long and narrow. Hypandrial arms strong, not bent anteriorly. Distal 1/3–2/5 of cerci wide apart. Cerci, in posterior view, wide, relatively short with dense, brush-like, fine medioclinate setulae arising from median slope of a longitudinal carina ( Fig. 8B, C View Figure 8 ); proximal end of carina strongly pronounced (knoblike) and covered with long erect and slightly bent medially setae ( Fig. 8A–C View Figure 8 ); lateral margin of cerci with a distinct, wide lobe about in parabasal position ( Fig. 8C View Figure 8 ). Cerci, in lateral view, slightly bent posteriorly, not widened apically ( Fig. 8A View Figure 8 ); medioventral sclerite of cerci at most slightly visible in profile. Medial preapical tooth of cerci well developed ( Fig. 8D View Figure 8 ). Surstylus very long, paddle-like, strongly bent posteriorly almost down to the base ( Fig. 8A, C View Figure 8 ).