Curtonotum, : Macquart, 1844

Kirk-Spriggs, Ashley H. & Wiegmann, Brian M., 2013, A revision of Afrotropical Quasimodo flies (Diptera: Schizophora; Curtonotidae). Part IV — the continental Afrotropical species of Curtonotum Macquart, with descriptions of thirteen new species and a combined phylogenetic analysis of the Curtonotidae , Zootaxa 3684 (1), pp. 1-166 : 84-86

publication ID	https://doi.org/ 10.11646/zootaxa.3684.1.1
publication LSID	lsid:zoobank.org:pub:E922034E-1247-400B-97F6-1778CF766B91
persistent identifier	https://treatment.plazi.org/id/03E45152-FFCC-FFB3-A6AB-FAB357F2465C
treatment provided by	Felipe
scientific name	Curtonotum
status

Treatment

Curtonotum View in CoL View at ENA hay Kirk-Spriggs, sp. n.

Figs 115 View FIGURES 112–117 , 139 View FIGURES 130–141 , 175 View FIGURES 172–181 , 247, 251, 255 View FIGURES 247–258 , 298 View FIGURES 295–305 , 325 View FIGURE 325 , 326 View FIGURE 326 .

Etymology. The specific epithet hay is a noun in apposition, named in honour of multi-talented comic genius Will Hay (1888–1949), whose British comedy films of the 1930s continue to give immense pleasure to millions.

Description: Male (primarily based on field-pinned HT).

As redescribed for C. campsiphallum (above), differing in the following respects:

Measurements: Overall length unknown; length of head and thorax combined 2.1–2.5 mm; length of thorax and scutellum combined 2.2–2.3 mm (n = 4, HT, PT); wing length 3.6–3.9 mm (n = 3, HT, PT).

Head ( Figs 115 View FIGURES 112–117 , 139 View FIGURES 130–141 ). Eye height/length ratio: 9:7 (n = 1, HT); frons ( Fig. 139 View FIGURES 130–141 ) length/width ratio: 5:7 (n = 1, HT); arista with 10–11 long dorsal branches and 4 or 5 ventral branches; 10 fine setae bordering genal groove; eye height/genal height ratio: 9:1 (n = 1, HT).

Thorax ( Fig. 115 View FIGURES 112–117 ). Postpronotum with 11 fine setulae; anepisternum with 26 fine setulae; katepisternum with 15 fine setulae.

Legs. Fore coxa with 12 brown setulae; fore tibia with ctenidium of 10–12 moderately long, sharp, black spinules.

Wing ( Fig. 175 View FIGURES 172–181 ). Dm–cu crossvein angulate in anterior ⅔.

Abdomen. Sternite 6 ( Fig. 298 View FIGURES 295–305 ) slightly expanded apically, narrowed basally with sides straight, with shallow U-shaped apical excision and faint brown maculae laterally, clothed in very short black irregular brown setulae.

Terminalia ( Figs 247, 251, 255 View FIGURES 247–258 ). Hypandrium ( Fig. 247 View FIGURES 247–258 , hy) hypandrial arms short and broad (viewed laterally); postgonite (pg); epandrium (ep) cercus (ce); surstylus (ss); phallus (as in Figs 251 View FIGURES 247–258 , ph, bp, dp; 255, bp, dp); phallapodeme ( Fig. 251 View FIGURES 247–258 , ph) ejaculatory apodeme (ea); basiphallus ( Figs 251, 255 View FIGURES 247–258 , bp) broad, expanded apically, with brown, heavily sclerotised subtriangular baso-ventral process with 2 teeth-like spines on posterior margin; distiphallus (dp) short, scimitar-like (viewed laterally), membranous area broad on both sides.

♀ Unknown.

Variation. As only 4 specimens are known, insufficient material is available to assess variation.

Differential diagnosis. Curtonotum hay sp. n. is probably most closely-related to a group of three species having the basiphallus relatively broad and expanded apically and the membranous area of the distiphallus broad ( C. sao , C. campsiphallum and C. tsacas sp. n.). It is most closely related to the last two named species, both of which share the short plate-like baso-ventral process with a series of teeth-like serrations on the posterior margin. They are separable by use of the above key.

Type material examined. UGANDA: holotype ♂, “ Uganda / Katona // Mujenje [= Muyenje] / 1913.VIII. // HOLOTYPE ♂ / Curtonotum / hay sp. n. / A.H. Kirk-Spriggs 2011 [printed; red card]” (HNHM). In good condition; dissected, abdomen and terminalia in micro-vial pinned beneath specimen. Paratypes (all labelled: “ PARATYPE ♂ / Curtonotum / hay sp. n. / A.H. Kirk-Spriggs 2011 [printed; blue card]”): UGANDA: 2♂, same labels as holotype (HNHM); 1♂, “May, 1914, / UGANDA, Uny- / oro, Hoima, / 3700 feet. / Coll. Kitten- / berger. Dd.’19 / C.A. Wiggins.” (OUMNH).

Distribution. Uganda ( Figs 325 View FIGURE 325 , 326 View FIGURE 326 ). Apparently confined to higher elevations (ca. 1120 m) in the Great Rift Valley of east-central Uganda ( Fig. 325 View FIGURE 325 ).

Bionomics. Occurring in the Victoria Basin Forest-Savanna Mosaic and Albertine Rift Montane Forest major habitat types; Tropical and Subtropical Grasslands , Savannas and Shrublands and Tropical and Subtropical Moist Broadleaf Forests vegetation types (Appendix III) .