Heptapsogasteridae (order Phthiraptera, suborder Ischnocera) Family of chewing lice, which occur in S. America where they parasitize birds of the order Tinamiformes. Heptapsogasteridae differ from other Ischnocera in the fusion of the first three abdominal segments, the first pair of abdominal spiracles appearing on the first visible segment. There are 15 genera, with about 130 species. This is a very high number of species for a host group of less than 50 species.
More From encyclopedia.com
Indifferent Species , indifferent species A species with no real affinity for any particular community, but which is not rare (as an accidental species would be). It is fi… preferential species , preferential species In phytosociology, a species that is present with varying abundance in several communities, but is especially abundant and vigor… Companion Species , companion species A term formerly used in the Braun-Blanquetphytosociological scheme to mean ‘indifferent species’. Companion species at the associat… Constellation Diagram , constellation diagram A representation of species affinities that is based on χ2 as a measure of the association between species. The reciprocal of t… Constant Species , constant species(constancy) In phytosociology, a species common to a particular association or community, but not necessarily confined to that commun… ring species , ring species A group of subspecies that are contiguous along a cline. Members of each population are able to mate successfully with members of adjace…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like