Arthropeina colombiana, Fachin, Diego Aguilar & Amorim, Dalton De Souza, 2014

Fachin, Diego Aguilar & Amorim, Dalton De Souza, 2014, Taxonomic revision of the Neotropical genus Arthropeina Lindner, 1949 (Diptera: Xylomyidae), Zootaxa 3827 (2), pp. 231-257 : 244

publication ID	https://doi.org/ 10.11646/zootaxa.3827.2.6
publication LSID	lsid:zoobank.org:pub:D6C800AA-8127-41D1-ACEA-52254F7CE89D
DOI	https://doi.org/10.5281/zenodo.6124274
persistent identifier	https://treatment.plazi.org/id/09E4458A-D428-47FA-86F2-EDD9BE80FA97
taxon LSID	lsid:zoobank.org:act:09E4458A-D428-47FA-86F2-EDD9BE80FA97
treatment provided by	Plazi
scientific name	Arthropeina colombiana
status	sp. nov.

Treatment

Arthropeina colombiana View in CoL , sp. nov.

( Figs. 3 View FIGURES 1 – 7 , 21–26 View FIGURES 21 – 26 , 61 View FIGURES 60 – 65 , 68–69 View FIGURES 66 – 77 , 79 View FIGURES 78 – 83 , 85 View FIGURES 84 – 89 )

Diagnosis (female). Length of eighth flagellomere two times length of seventh ( Fig. 3 View FIGURES 1 – 7 ). Prescutum anteriorly and laterally dark brown, postscutum basally dark brown ( Fig. 61 View FIGURES 60 – 65 ). Projection of posterior margin of genital fork rounded basally ( Figs. 21, 23 View FIGURES 21 – 26 ). Tergite 10 projected between the cerci in females ( Fig. 26 View FIGURES 21 – 26 ).

Material examined. HOLOTYPE, ♀ (right antenna and right wing slide–mounted), COLOMBIA, Valle del Cauca, PNN Farallone de Cali, Cgto. La Meseta, 03º34’N 76º40’W 1960 m, Malaise 10–25.ix.2003, S. Sarria & M. Losso Leg. M. 4547 (IAvH).

Description. Female. Length: body, 8.1 mm; wing, 9.0 mm. Head. Vertex pale, setation yellow. Upper frons slightly reddish yellow. Flagellomeres l–3 brownish on outer margin, pale on inner margin; flagellomeres 4–8 dark brown to black. Eighth flagellomere twice the length of seventh ( Fig. 3 View FIGURES 1 – 7 ). Palpus ( Fig. 69 View FIGURES 66 – 77 ) whitish yellow, elongate; basal segment three times its width; apical segment oval, 2.75 times as long as wide, 1.5 times length of basal segment, both with pale hairs. Thorax ( Fig. 61 View FIGURES 60 – 65 ). Mostly yellow. Postpronotal lobes whitish yellow, dark brown anteriorly, notopleural strip dark brown, both contrasting with scutum color. Prescutum anteriorly and laterally dark brown, postscutum basally and its connection with the scutellum dark brown; scutellum mostly whitish yellow, except dark brown on outer margin; brownish pilosity. Legs. Mostly reddish yellow, except for tarsomeres slightly brownish, all trochanters brown to dark brown, hind coxae dorsally, and mid and hind tibiae on basal two-thirds dark brown. Wing as in Fig. 68 View FIGURES 66 – 77 . Halter pale, knob whitish yellow. Abdomen. Reddish yellow, with black transverse bands on tergites; sternites weakly sclerotized, 1–4 with small brown maculae; first tergite entirely black. Female genitalia ( Figs. 21–26 View FIGURES 21 – 26 ). Tergite 8 wide, more or less rectangular, rounded anteriorly. Sternite 8 quadrate ( Fig. 25 View FIGURES 21 – 26 ), narrowing towards distal half; gonapophyses sclerotized, lobes divergent, rounded apically. Tergite 9 with distal half wider than basal half ( Fig. 22 View FIGURES 21 – 26 ). Genital fork with anterior arm rounded ( Figs. 21–23 View FIGURES 21 – 26 ), as wide as posterior arm; membranous lobes of fork wide; projection of posterior margin rounded basally; margin between posterior projection with a moderately circular incision medially; genital opening small, circular, a few microtrichia on bursa. Three spermathecae present ( Fig. 24 View FIGURES 21 – 26 ), lateral ones with long ducts; spermathecal capsules more or less ovoid, strongly sclerotized, not clearly helicoid. Tergite 10 projected between the cerci ( Fig. 26 View FIGURES 21 – 26 ). Cercus of first segment moderately compressed, basally wider than distally; segment 1 of cercus two times length of segment 2.