Dolichocolon chiangmaiensis, 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 : 550-552

publication ID	https://doi.org/ 10.1111/j.1096-3642.2010.00689.x
DOI	https://doi.org/10.5281/zenodo.5492007
persistent identifier	https://treatment.plazi.org/id/03A887E7-CC0D-FFF4-FCFA-82999EB4FA63
treatment provided by	Valdenar
scientific name	Dolichocolon chiangmaiensis
status	sp. nov.

Treatment

DOLICHOCOLON CHIANGMAIENSIS SP. NOV.

( FIG. 2A–F View Figure 2 )

Type material: Holotype ♂: Chiengmai [= Chiang Mai]/ Thailand 5726/ IV-22 1952 / DC & ET Thurman [ USNM].

Etymology: From the type locality Chiang Mai ( Thailand), and should be treated as a Latin adjective.

Description: Body length: 9.6 mm.

Coloration and pruinescence: Gena, parafacial and fronto-orbital plate red, occiput black; head covered with whitish pruinescence. Palpus mainly yellowish. Scape and pedicel dark brown. Thorax mainly black; posterior quarter of scutellum reddish-yellow; scutum with four presutural dark vittae, lateral vitta distinctly outlined and ending wedge-shaped beside posthumeral seta. Legs black. Tegula and basicosta black to dark brown. Abdomen black, more or less reddish on sides of tergites 3 and 4; tergite 3 with a transverse band of whitish-grey pruinescence on anterior 1/2 (side)–1/1(mid-dorsal), tergite 4 pruinose on anterior 4/5 (side)-1/1(mid-dorsal); tergite 5 entirely covered with dense pruinescence.

Head ( Fig. 2A View Figure 2 ): Compound eye bare. Second aristomere about three times as long as wide. Thickened part of third aristomere about three times as long as second aristomere. Postpedicel 5.6 times as long as pedicel. Vertex at its narrowest point 0.82 times as wide as compound eye in dorsal view. Lateral vertical seta only slightly differentiated from postocular setae. Six or seven frontal setae descending below level of base of arista. Fronto-orbital plate with two irregular rows of medioclinate setae or setulae lateral to row of frontal setae. Gena in profile about 0.15 times as high as compound eye. Postocular setae fine, relatively long, slightly bent anteriorly. Prementum about 1.0– 1.5 times as long as wide.

Abdomen ( Fig. 2B View Figure 2 ): Syntergite 1 + 2 with short and weak median marginal setae. Tergite 3 with one pair of median marginal setae about 0.5–0.6 times as long as corresponding tergite. Tergite 4 with a row of 12 marginal setae shorter than corresponding tergite. Tergite 5 with a row of marginal and discal setae.

Male terminalia ( Fig. 2C–F View Figure 2 ): Lateral lobe of sternite 5 not rounded, without long setae along medial margin (present in all other known Dolichocolon ). Epandrium short and convex. Hypandrial arms relatively short and strongly bent anteriorly ( Fig. 2C View Figure 2 ). Cerci, in lateral view, not bent posteriorly, rounded and clearly widened apically ( Fig. 2D View Figure 2 ). Distal 2/5 of cerci well divided, without a distinct medial preapical tooth ( Fig. 2E View Figure 2 ). Cerci, in posterior view, long and relatively narrow. Surstylus, in lateral view, straight, long, and narrow. Surstylus covered with short, robust setae ( Fig. 2C, D View Figure 2 ).