Columbicola emersoni Tendeiro, 1960

Adams, Richard J., Price, Roger D. & Clayton, Dale H., 2005, Taxonomic revision of Old World members of the feather louse genus Columbicola (Phthiraptera: Ischnocera), including descriptions of eight new species, Journal of Natural History 39 (41), pp. 3545-3618 : 3603

publication ID	https://doi.org/ 10.1080/00222930500393368
persistent identifier	https://treatment.plazi.org/id/CB3C8797-C306-8719-FE38-186AFD08F905
treatment provided by	Felipe
scientific name	Columbicola emersoni Tendeiro
status

Treatment

Columbicola emersoni Tendeiro View in CoL

( Figures 174–177 View Figures 165–189 )

Columbicola emersoni Tendeiro 1960: 609 View in CoL . Type host: Ptilinopus richardsii cyanopterus Mayr. View in CoL

Description

Male head as in Figure 174 View Figures 165–189 ; APW, 0.118 –0.142 (0.129); HW, 0.24–0.28 (0.261); HL, 0.50–0.59 (0.531); HL/ HW, 1.89–2.12 (2.04); SL, 0.069 –0.093 (0.083); medioposterior setae short, not reaching posterior head margin; antenna with expanded scape and spur on third segment. Thorax with PW, 0.19–0.22 (0.207); MW, 0.23–0.27 (0.253). Genitalia as in Figure 176 View Figures 165–189 ; mesosome triangular, medially thickened, anterior arms curving backwards, expanded laterally; GW, 0.088 –0.098 (0.094). TL, 1.91–2.35 (2.09). Female head as in Figure 175 View Figures 165–189 ; APW, 0.137 –0.147 (0.140); HW, 0.28–0.29 (0.287); HL, 0.55–0.56 (0.557); HL/ HW, 1.90–2.00 (1.94). Thorax with PW, 0.22; MW 0.27–0.28 (0.277). Ventral terminalia as in Figure 177 View Figures 165–189 ; subgenital plate groove narrowly rounded anteriorly, widening posteriorly; no lateral subgenital plate setae. TL, 2.43–2.52 (2.47) GoogleMaps .

Material

3 males, 1 female (including holotype male, allotype female, paratype male of C. emersoni ), ex P. richardsii cyanopterus , Solomon Islands (3). 4 male paratypes of C. emersoni , ex P. melanospilus (Salvadori) , Celebes (3). 1 male, ex P. tannensis (Latham) , Vanuatu (1). 1 male, ex P. pulchellus (Temminck) , Waigeu Island (1). 2 females, ex P. greyii Bonaparte , Vanuatu (1). 1 male, ex Ducula c. concinna, Kei Isles (1).

Remarks

Columbicola emersoni is widespread on members of the genus Ptilinopus . The structure of the male genitalic mesosome is distinctive. The shape of the female subgenital plate groove varies, with the roughly triangular pattern being consistent, but the exact shape and texture of the lateral edges of the plate groove being more variable. Much like C. elbeli and C. longiceps , these differences in overall morphology are most apparent when comparing C. emersoni specimens from different host species. This is particularly evident when dealing with the single male from P. tannensis , which is a new host record for C. emersoni . Although most other C. emersoni males examined for this paper, as well as those recorded in Tendeiro (1965), are well under 2.15 in length, this individual was substantially larger at 2.35. In every other respect this specimen is identical to C. emersoni males from other hosts. Additional collecting may reveal that these size differences are consistent between populations on different host species, in which case the lice from P. tannensis may eventually be recognized as a different species.