Macrostomus nigriventris (Macquart)
publication ID |
https://doi.org/ 10.5281/zenodo.281632 |
DOI |
https://doi.org/10.5281/zenodo.6179142 |
persistent identifier |
https://treatment.plazi.org/id/03E59A56-FF94-FF82-FF7B-FAB860AEAD5F |
treatment provided by |
Plazi |
scientific name |
Macrostomus nigriventris (Macquart) |
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Macrostomus nigriventris (Macquart) View in CoL
( Figs. 26–31 View FIGURES 26 – 31 )
Rhamphomyia nigriventris Macquart, 1846: 224 ; Bezzi, 1905: 457 (citation); Bezzi, 1909: 322 (keyed); Melander, 1928: 199 (geographical distribution).
Macrostomus nigriventris: Collin, 1933: 210 View in CoL ; Smith, 1961: 53; 1962: 242 (description transcription); 1967: 30 (catalogue); Rafael, 2001: 45 (citation); Rafael & Cumming, 2004: 446 (citation); Yang et al., 2007: 145 (catalogue).
Diagnosis. Postgenal and antepronotal setae weaker than dorsal thoracic setae. Tergite 8 with wide median projection at distal margin. Hypandrium distinctly wider at apex.
Re-description. Holotype male. Body length 3.4 mm; wing length 4.1 mm. The type of M. nigriventris was not located by Rafael (2001). Fortunately it was found in the Hope Entomological Collections of the University Museum in Oxford (OUMNH). The original description was transcribed by Smith (1962) and is useful. The wing and the terminalia are intact and it is now possible to add the following characters: posterior leg with coxa, trochanter and femur yellow, except apex of femur light brown; tibia light brown with extreme base yellow; tarsus yellow; tibia ( Fig. 26 View FIGURES 26 – 31 ) with six slender dorsal setae; tarsomere 1 with 1 longer dorsal seta at middle and short spinelike setae ventrally. Wing ( Fig. 27 View FIGURES 26 – 31 ) hyaline, light brown infuscated at costal and distal margins with pterostigma darker; cell dm somewhat truncate; veins M1, M2 and A1 evanescent. Halter lost. Abdomen shining black after dissection. Sternites concolorous with tergites. Terminalia black. Tergite 8 ( Fig. 29 View FIGURES 26 – 31 ) with somewhat wide projection inside median distal sulcus. Epandrium ( Fig. 30 View FIGURES 26 – 31 ) with anterodorsal and posterodorsal lobes of same height with somewhat deep sinus. Anterior cercus very large with dorsal sinus; posterior cercus elongate, bifid; median lobe ( Figs. 28, 30 View FIGURES 26 – 31 ) with long setae. Hypandrium ( Fig. 31 View FIGURES 26 – 31 ) with 6 slender setae along posterior margin (broken on dissected piece), with wider apex. Ejaculatory apodeme with short lateral lamella.
Female. Unknown.
Geographical distribution. Brazil (Minas Gerais).
Type Material. HOLOTYPE ɗ: “ Rhamphomyia nigriventris Macq. Male, n. sp., Brasil, Minas Gerais, Macq. D. 9r. Nvn” (sic) [handwritten white rectangular label, black bordered] // “ Holotype ” [printed rounded label red bordered] // “ R. nigriventris ex Coll. Bigot” [printed rectangular white label] ( OUMNH).
Holotype condition. Pinned specimen in poor condition. Body covered with a secretion (?glue). Right anterior leg with no tarsus. Left anterior leg lost. Left mid tibia glued to the pin, tarsus mounted on microslide. Right mid leg (except coxa) and posterior legs (except coxae) mounted on microslide. Wings mounted on microslide; mounted right wing with basal third lost; left wing ( Fig. 27 View FIGURES 26 – 31 ) almost entire. Abdomen in good condition, in microvial with glycerin. Microslide and microvial on pin with specimen.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Macrostomus nigriventris (Macquart)
Rafael, José Albertino & Cumming, Jeffrey M. 2012 |
Macrostomus nigriventris:
Yang 2007: 145 |
Rafael 2004: 446 |
Rafael 2001: 45 |
Smith 1961: 53 |
Collin 1933: 210 |
Rhamphomyia nigriventris
Melander 1928: 199 |
Bezzi 1909: 322 |
Bezzi 1905: 457 |
Macquart 1846: 224 |