| abstract | Pneumolaelaps aequalipilus, mistipilus, and longipilus, all from bumble bees, are described and illustrated making a total of six species and one vareity for the genus. The genus has been recorded from Europe, India, Greenland and now from North America. A key to the species, based on females, and bibliographic information is given for the known species. Information on the number of individuals and location on the host bumble bee is included for the new species. |