Taxonomic revision of Old World members of the feather louse genus Columbicola (Phthiraptera: Ischnocera), including descriptions of eight new species Author Adams, Richard J. Author Price, Roger D. Author Clayton, Dale H. text Journal of Natural History 2005 2005-12-23 39 41 3545 3618 http://dx.doi.org/10.1080/00222930500393368 journal article 10.1080/00222930500393368 1464-5262 5220802 9. fortis species group This group contains a single species from the host genus Otidiphaps . It has a very broad head, with both anterior and posterior thickenings ( Figures 102, 103 ); body oblong; each side of metanotum with two long, two short setae ( Figure 2 ). Male antenna with enlarged scape, spur on third segment ( Figure 102 ); parameres wide ( Figure 104 ); mesosome rectangular, rounded, expanded anteriorly; four pores, one lateral sclerite on each side. Each side of female subgenital plate with 4–5 long setae; subgenital plate groove elongate, narrow ( Figure 105 ).