Lipeurus angustus, Rudow, 1869
publication ID |
https://doi.org/ 10.1080/00222930500393368 |
persistent identifier |
https://treatment.plazi.org/id/CB3C8797-C327-8704-FE26-1873FDCBFDA9 |
treatment provided by |
Felipe |
scientific name |
Lipeurus angustus |
status |
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6. angustus View in CoL species group
This group consists of six species from the host genera Phaps , Macropygia , Gallicolumba , Reinwardtoena , and Ocyphaps . They have the anterior marginal head carina complete, either rounded ( Figure 81 View Figures 78–94 ) or indented ( Figure 78 View Figures 78–94 ); body elongate ( Figure 1 View Figures 1–18 ); each side of metanotum with two long, two short setae ( Figure 2 View Figures 1–18 ). Male antenna with enlarged scape, spur on third segment; mesosome triangular, tightly wedged between long, thin parameres, with two or four pores ( Figures 76 View Figures 58–77 , 82 View Figures 78–94 ). Female subgenital plate groove elongate, either narrow or broad; lateral setae either lacking, or, if present, quite short ( Figures 77 View Figures 58–77 , 86 View Figures 78–94 ).
( Figures 76, 77 View Figures 58–77 ) Lipeurus angustus Rudow 1869: 34 . Type host: Phaps chalcoptera (Latham) .
Description
Head narrow and long, more pronounced in female. Male HW, 0.25–0.27 (0.260); HL, 0.52–0.55 (0.535); HL/ HW, 2.00–2.12 (2.06). Thorax with PW, 0.22–0.23 (0.222); MW, 0.27–0.29 (0.280). Genitalia as in Figure 76 View Figures 58–77 ; mesosome triangular, with rounded anterior indentation and 2 pores; GW, 0.083 –0.088 (0.084). TL, 2.20–2.28 (2.24). Female HW, 0.23–0.26 (0.252); HL, 0.60–0.63 (0.617); HL/ HW, 2.31–2.74 (2.45). Ventral terminalia as in Figure 77 View Figures 58–77 ; subgenital plate groove peaked, ovoid anteriorly, constricted medially, widening posteriorly. TL, 2.74–2.84 (2.80) GoogleMaps .
Material
4 males, 4 females, ex P. chalcoptera , Western Australia (2).
Remarks
The genital structure of both sexes is distinctive. It is worth noting that the type host, P. chalcoptera , is known to harbor two different species of Columbicola : C. angustus from western Australia and C. tasmaniensis Tendeiro from southeastern Australia. The degree of range overlap between these two species, if any, is unknown.
Columbicola beccarii Tendeiro View in CoL ( Figures 78–80 View Figures 78–94 ) Columbicola beccarii Tendeiro 1984: 84 View in CoL . Type host: Gallicolumba View in CoL b. beccarii (Salvadori) View in CoL .
Description
Head broad, dorsoanterior plate rounded with slight anterior indentation ( Figures 78, 79 View Figures 78–94 ). Male head ( Figure 78 View Figures 78–94 ) with APW, 0.127; HW, 0.30; HL, 0.52; HL/HW, 1.73; SL, 0.113; ventral row of small setae anterior to mandibles. Thorax with PW, 0.23; MW, 0.29. Genitalia as in Figure 80 View Figures 78–94 ; parameres long and straight; mesosome triangular, with 2 pores; GW, 0.088. TL, 1.98. Female similar to male except as follows. APW, 0.142; HW, 0.33; HL, 0.56; HL/HW, 1.73. Thorax with PW, 0.25; MW, 0.32. TL, 2.47.
Material
Holotype male, allotype female of C. beccarii , ex G. b. beccarii , New Guinea (1).
Remarks
Tendeiro (1984) based his description on two males and two females. Although the genitalia are clearly visible in the male (holotype), the ventral terminalia, including the subgenital plate, are obscured in the female specimen we examined. We are therefore unable to confirm Tendeiro’s (1984) description of the subgenital plate as having a narrow posterior indentation, widening slightly posteriorly. However, the broad head shape, in conjunction with the indented dorsoanterior head plate, and row of setae above the mandibles in the male, should make identification of this species straightforward.
Columbicola taschenbergi Eichler
( Figures 81, 82 View Figures 78–94 )
Columbicola taschenbergi Eichler 1942b: 286 View in CoL . Type host: Reinwardtoena r. reinwardtii (Temminck) View in CoL .
Description
Male exceptionally large, with head as in Figure 81 View Figures 78–94 , long and broad; medioposterior setae unusually long, with over half their length beyond posterior margin; APW, 0.147; HW, 0.34; HL, 0.64; HL/HW, 1.88; SL, 0.172. Thorax with PW, 0.29; MW, 0.37. Genitalia as in Figure 82 View Figures 78–94 ; mesosome triangular, wedged between posterior portion of parameres, with 4 pores; GW, 0.091. TL, 2.63. Female unknown.
Material
1 male, ex R. reinwardtii griseotincta E. Hartert , New Guinea (1).
Remarks
The male of C. taschenbergi is one of the largest in the genus. Its size, low HL/HW ratio, long setae, and mesosomal structure make identification of C. taschenbergi straightforward.
( Figures 83–86 View Figures 78–94 ) Columbicola mckeani Tendeiro 1973a: 526 . Type host: Ocyphaps lophotes (Temminck) .
Description
Similar to C. angustus ; PMHS long and hair like ( Figures 83, 84 View Figures 78–94 ). Male HW, 0.26–0.28 (0.267); HL, 0.52–0.54 (0.533); HL/ HW, 1.93–2.08 (2.00); SL 0.127 –0.137 (0.132). Thorax with PW, 0.22–0.23 (0.223); MW, 0.28–0.31 (0.300). Genitalia as in Figure 85 View Figures 78–94 ; parameres elongate; mesosome triangular, laterally thickened, with 2 pores; GW, 0.069 – 0.074 (0.071). TL, 2.13–2.23 (2.16). Female HW, 0.27–0.28 (0.272); HL, 0.56–0.59 (0.567); HL/ HW, 2.07–2.11 (2.08). Thorax with PW, 0.21–0.25 (0.225); MW, 0.29–0.31 (0.300). Ventral terminalia as in Figure 86 View Figures 78–94 ; subgenital plate groove elliptical, with 2 small setae on each side. TL, 2.42–2.57 (2.47) GoogleMaps .
Material
6 males, 1 female, ex O. lophotes , South Australia (3).
Remarks
Columbicola mckeani View in CoL shares thin elongate PMHS with C. tschulyschman View in CoL ; however, the former can be distinguished from the latter by a greater HL/HW ratio and different genitalia. Tendeiro (1973a) pointed out similarities between C. mckeani View in CoL and C. angustus View in CoL ; however, the former is smaller, has a different mesosomal structure, and has hair-like PMHS, compared to short, thick PMHS in C. angustus View in CoL . Since we had access to only a single female specimen of C. mckeani View in CoL , we have included Tendeiro’s (1973a) measurements of the allotype and two female paratypes to illustrate the range of variation.
Columbicola exilicornis (Piaget) View in CoL ( Figures 87–90 View Figures 78–94 ) Lipeurus exilicornis Piaget 1880: 679 View in CoL . Type host: Sterna sp. ( Charadriiformes View in CoL : Laridae View in CoL ).
Description
Male anterior carina medially expanded, pointing toward thickened anterior sagittal band ( Figure 87 View Figures 78–94 ); HW, 0.29–0.33 (0.308); HL, 0.58–0.65 (0.607); HL/ HW, 1.76–2.10 (1.98); SL, 0.122 –0.145 (0.133). Thorax with PW, 0.24–0.28 (0.266); MW, 0.27–0.39 (0.321). Genitalia as in Figure 89 View Figures 78–94 ; mesosome triangular, tightly wedged between posterior end of relatively straight parameres, with 4 pores; GW, 0.078 –0.088 (0.084). TL, 2.23–2.57 (2.41). Female similar to male except as follows. Head as in Figure 88 View Figures 78–94 ; HW, 0.31–0.33 (0.319); HL, 0.61–0.70 (0.650); HL/ HW 1.94 – 2.16 (2.04). Thorax with PW, 0.24–0.26 (0.251); MW, 0.32–0.36 (0.342). Ventral terminalia as in Figure 90 View Figures 78–94 ; subgenital plate groove elongate, with 2–5 short setae (0.007 –0.012) on each side. TL, 2.60–2.99 (2.83) GoogleMaps .
Material
7 males, 6 females (including 3 males, 3 females identified by Tendeiro), ex Macropygia unchall (Wagler) , Thailand (2) . 1 male, 1 female (both identified by Tendeiro), ex M. ruficeps (Temminck) , Thailand (1) . 2 males, 2 females, ex M. amboinensis phasianella (Temminck) , Philippines (2) . 2 males, ex Phapitreron amethystinus Bonaparte , Philippines (2) . 2 males, 2 females, ex Geopelia striata (L.), Philippines (2).
Remarks
The holotype of C. exilicornis is a female, recorded from an unidentified species of tern ( Sterna sp. ), which presumably represents an erroneous host record. Other specimens have been collected from several species of Macropygia , and additional collecting has yielded this species on additional host genera, particularly in the Philippines. For example, Tendeiro (1984) recorded a pair of C. exilicornis on Gallicolumba jobiensis (A. B. Meyer) . Specimens we examined from G. striata and P. amethystinus both proved to be new host records. Columbicola exilicornis shares features with the new species C. arnoldi , such as the medially expanded anterior head carina and thickened sagittal band. The males of these species can be readily separated by details of the mesosome; however, the females are currently inseparable.
Tendeiro (1965) considered C. juliusriemeri Eichler and Mrosek to be a synonym of C. exilicornis , despite never having studied the single male (holotype) specimen from which the former species was described (the holotype has apparently been lost). We feel Tendeiro’s action was premature, and that C. juliusriemeri must retain species status pending the acquisition and study of additional specimens. Drawings of the holotype by Eichler and Mrosek, although minimal in detail, show some possibly informative characters (see C. juliusriemeri account later in this revision).
PW |
Paleontological Collections |
MW |
Museum Wasmann |
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Genus |
Lipeurus angustus
Adams, Richard J., Price, Roger D. & Clayton, Dale H. 2005 |
Columbicola beccarii
Tendeiro J 1984: 84 |
Columbicola taschenbergi
Eichler E 1942: 286 |
Columbicola exilicornis
Piaget E 1880: 679 |